From patchwork Fri Nov 10 18:11:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862498 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=it9/+yVV; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:45e3:2400::1; helo=sv.mirrors.kernel.org; envelope-from=linux-i2c+bounces-10-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org [IPv6:2604:1380:45e3:2400::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SRnKz3lRmz1yQK for ; Sat, 11 Nov 2023 05:24:55 +1100 (AEDT) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 4DCCF280F13 for ; Fri, 10 Nov 2023 18:24:54 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id C56DA3A285; Fri, 10 Nov 2023 18:24:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="it9/+yVV" X-Original-To: linux-i2c@vger.kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CEE551DDFA for ; Fri, 10 Nov 2023 18:24:48 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6028E1DF61; Fri, 10 Nov 2023 10:24:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699640658; x=1731176658; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=XYkHs7aZvf3egWebqSD+gvG236t4GW5jLlJ3MZImh9A=; b=it9/+yVVYyBy/PrYEI2uQKo5R9TLjBAICtpovst4vTXyT2SEgJsqTqV2 dskota8ZhMFJrzuBTVqoccEQaRrfxe3F01Lf3WjXCjFkTpgf5HiOyiPNN QVwVhMZ1/B/A4R6ryfSCpmZSJ1YyBoQ2tyoYiI4r52klyNdpTcyHVSRGX ciWxyIET6cRb9c5Uikwga2dCCTMC2IU4ar89zPMOnjYmxZ+0lFDKx2c/W qr4YD2iHR7eU8hvLjho/jJOB3eMv1/mTTbpBbF28aXe9ByB8Z1NVLR35Y sl/q3ui/x/8GcMVSJNJOu+L/PeS4hRtVomeAGQSOTBVvA/bjPaKOghinV Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10890"; a="375251887" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="375251887" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Nov 2023 10:23:15 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10890"; a="798663739" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="798663739" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga001.jf.intel.com with ESMTP; 10 Nov 2023 10:23:08 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 57E4414F; Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 01/25] i2c: designware: Delete adapter before disabling in i2c_dw_pci_remove() Date: Fri, 10 Nov 2023 20:11:21 +0200 Message-ID: <20231110182304.3894319-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Make i2c_dw_pci_remove() to be aligned with dw_i2c_plat_remove() on the sequence of the ceasing I²C operations. Fixes: 18dbdda89f5c ("i2c-designware: Add runtime power management support") Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-pcidrv.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 61d7a27aa070..35d35d7c8e23 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -354,11 +354,13 @@ static void i2c_dw_pci_remove(struct pci_dev *pdev) { struct dw_i2c_dev *dev = pci_get_drvdata(pdev); + i2c_del_adapter(&dev->adapter); + dev->disable(dev); + pm_runtime_forbid(&pdev->dev); pm_runtime_get_noresume(&pdev->dev); - i2c_del_adapter(&dev->adapter); devm_free_irq(&pdev->dev, dev->irq, dev); pci_free_irq_vectors(pdev); } From patchwork Fri Nov 10 18:11:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862519 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 02/25] i2c: designware: Fix PM calls order in dw_i2c_plat_probe() Date: Fri, 10 Nov 2023 20:11:22 +0200 Message-ID: <20231110182304.3894319-3-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 We should not mix managed calls with non-managed. This will break the calls order at the error path and ->remove() stages. Fix this by wrapping PM ops to become managed one. Fixes: 36d48fb5766a ("i2c: designware-platdrv: enable RuntimePM before registering to the core") Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-platdrv.c | 28 ++++++++++++--------- 1 file changed, 16 insertions(+), 12 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 855b698e99c0..8b0099e1bc26 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -177,14 +177,26 @@ static int txgbe_i2c_request_regs(struct dw_i2c_dev *dev) return 0; } -static void dw_i2c_plat_pm_cleanup(struct dw_i2c_dev *dev) +static void dw_i2c_plat_pm_cleanup(void *data) { + struct dw_i2c_dev *dev = data; + pm_runtime_disable(dev->dev); if (dev->shared_with_punit) pm_runtime_put_noidle(dev->dev); } +static int dw_i2c_plat_pm_setup(struct dw_i2c_dev *dev) +{ + if (dev->shared_with_punit) + pm_runtime_get_noresume(dev->dev); + + pm_runtime_enable(dev->dev); + + return devm_add_action_or_reset(dev->dev, dw_i2c_plat_pm_cleanup, dev); +} + static int dw_i2c_plat_request_regs(struct dw_i2c_dev *dev) { struct platform_device *pdev = to_platform_device(dev->dev); @@ -381,19 +393,12 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) pm_runtime_use_autosuspend(&pdev->dev); pm_runtime_set_active(&pdev->dev); - if (dev->shared_with_punit) - pm_runtime_get_noresume(&pdev->dev); - - pm_runtime_enable(&pdev->dev); - - ret = i2c_dw_probe(dev); + ret = dw_i2c_plat_pm_setup(dev); if (ret) - goto exit_probe; + goto exit_reset; - return ret; + return i2c_dw_probe(dev); -exit_probe: - dw_i2c_plat_pm_cleanup(dev); exit_reset: reset_control_assert(dev->rst); return ret; @@ -411,7 +416,6 @@ static void dw_i2c_plat_remove(struct platform_device *pdev) pm_runtime_dont_use_autosuspend(&pdev->dev); pm_runtime_put_sync(&pdev->dev); - dw_i2c_plat_pm_cleanup(dev); i2c_dw_remove_lock_support(dev); From patchwork Fri Nov 10 18:11:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862514 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 03/25] i2c: designware: Fix reset call order in dw_i2c_plat_probe() Date: Fri, 10 Nov 2023 20:11:23 +0200 Message-ID: <20231110182304.3894319-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 We should not mix managed calls with non-managed. This will break the calls order at the error path and ->remove() stages. Fix this by wrapping reset control to become managed one. With that start checking the rerurn code from reset_control_deassert() as it may fail and calling assertion in that scenario is not always a good idea. Fixes: ab809fd81fde ("i2c: designware: add reset interface") Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-platdrv.c | 56 ++++++++++++--------- 1 file changed, 33 insertions(+), 23 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 8b0099e1bc26..648fb84e574d 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -285,6 +285,28 @@ static void i2c_dw_remove_lock_support(struct dw_i2c_dev *dev) i2c_dw_semaphore_cb_table[dev->semaphore_idx].remove(dev); } +static void dw_i2c_plat_assert_reset(void *data) +{ + struct dw_i2c_dev *dev = data; + + reset_control_assert(dev->rst); +} + +static int dw_i2c_plat_get_reset(struct dw_i2c_dev *dev) +{ + int ret; + + dev->rst = devm_reset_control_get_optional_exclusive(dev->dev, NULL); + if (IS_ERR(dev->rst)) + return PTR_ERR(dev->rst); + + ret = reset_control_deassert(dev->rst); + if (ret) + return ret; + + return devm_add_action_or_reset(dev->dev, dw_i2c_plat_assert_reset, dev); +} + static int dw_i2c_plat_probe(struct platform_device *pdev) { struct i2c_adapter *adap; @@ -312,11 +334,9 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) if (ret) return ret; - dev->rst = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL); - if (IS_ERR(dev->rst)) - return PTR_ERR(dev->rst); - - reset_control_deassert(dev->rst); + ret = dw_i2c_plat_get_reset(dev); + if (ret) + return ret; t = &dev->timings; i2c_parse_fw_timings(&pdev->dev, t, false); @@ -331,30 +351,26 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) ret = i2c_dw_validate_speed(dev); if (ret) - goto exit_reset; + return ret; ret = i2c_dw_probe_lock_support(dev); if (ret) - goto exit_reset; + return ret; i2c_dw_configure(dev); /* Optional interface clock */ dev->pclk = devm_clk_get_optional(&pdev->dev, "pclk"); - if (IS_ERR(dev->pclk)) { - ret = PTR_ERR(dev->pclk); - goto exit_reset; - } + if (IS_ERR(dev->pclk)) + return PTR_ERR(dev->pclk); dev->clk = devm_clk_get_optional(&pdev->dev, NULL); - if (IS_ERR(dev->clk)) { - ret = PTR_ERR(dev->clk); - goto exit_reset; - } + if (IS_ERR(dev->clk)) + return PTR_ERR(dev->clk); ret = i2c_dw_prepare_clk(dev, true); if (ret) - goto exit_reset; + return ret; if (dev->clk) { u64 clk_khz; @@ -395,13 +411,9 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) ret = dw_i2c_plat_pm_setup(dev); if (ret) - goto exit_reset; + return ret; return i2c_dw_probe(dev); - -exit_reset: - reset_control_assert(dev->rst); - return ret; } static void dw_i2c_plat_remove(struct platform_device *pdev) @@ -418,8 +430,6 @@ static void dw_i2c_plat_remove(struct platform_device *pdev) pm_runtime_put_sync(&pdev->dev); i2c_dw_remove_lock_support(dev); - - reset_control_assert(dev->rst); } static int dw_i2c_plat_prepare(struct device *dev) From patchwork Fri Nov 10 18:11:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862497 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 04/25] i2c: designware: Let PCI core to take care about interrupt vectors Date: Fri, 10 Nov 2023 20:11:24 +0200 Message-ID: <20231110182304.3894319-5-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 PCI core, after pcim_enable_device(), takes care about the allocated IRQ vectors, no need to do it explicitly and break the cleaning up order. Fixes: 21aa3983d619 ("i2c: designware-pci: Switch over to MSI interrupts") Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-pcidrv.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 35d35d7c8e23..175aa18f1a04 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -295,10 +295,8 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, if (controller->setup) { r = controller->setup(pdev, controller); - if (r) { - pci_free_irq_vectors(pdev); + if (r) return r; - } } i2c_dw_adjust_bus_speed(dev); @@ -307,10 +305,8 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, i2c_dw_acpi_configure(&pdev->dev); r = i2c_dw_validate_speed(dev); - if (r) { - pci_free_irq_vectors(pdev); + if (r) return r; - } i2c_dw_configure(dev); @@ -330,10 +326,8 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, adap->nr = controller->bus_num; r = i2c_dw_probe(dev); - if (r) { - pci_free_irq_vectors(pdev); + if (r) return r; - } if ((dev->flags & MODEL_MASK) == MODEL_AMD_NAVI_GPU) { dev->slave = i2c_new_ccgx_ucsi(&dev->adapter, dev->irq, &dgpu_node); @@ -360,9 +354,6 @@ static void i2c_dw_pci_remove(struct pci_dev *pdev) pm_runtime_forbid(&pdev->dev); pm_runtime_get_noresume(&pdev->dev); - - devm_free_irq(&pdev->dev, dev->irq, dev); - pci_free_irq_vectors(pdev); } static const struct pci_device_id i2_designware_pci_ids[] = { From patchwork Fri Nov 10 18:11:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862516 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=RsK4Aog9; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; 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X-IronPort-AV: E=McAfee;i="6600,9927,10890"; a="456715051" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="456715051" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Nov 2023 10:29:39 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10890"; a="763808231" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="763808231" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga002.jf.intel.com with ESMTP; 10 Nov 2023 10:29:36 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 9068C7E7; Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 05/25] i2c: designware: Fix lock probe call order in dw_i2c_plat_probe() Date: Fri, 10 Nov 2023 20:11:25 +0200 Message-ID: <20231110182304.3894319-6-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 We should not mix managed calls with non-managed. This will break the calls order at the error path and ->remove() stages. Fix this by wrapping lock probe to become managed one. Fixes: 78d5e9e299e3 ("i2c: designware: Add AMD PSP I2C bus support") Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-platdrv.c | 24 ++++++++++----------- 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 648fb84e574d..63cc3cdca2c7 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -243,6 +243,17 @@ static const struct i2c_dw_semaphore_callbacks i2c_dw_semaphore_cb_table[] = { {} }; +static void i2c_dw_remove_lock_support(void *data) +{ + struct dw_i2c_dev *dev = data; + + if (dev->semaphore_idx < 0) + return; + + if (i2c_dw_semaphore_cb_table[dev->semaphore_idx].remove) + i2c_dw_semaphore_cb_table[dev->semaphore_idx].remove(dev); +} + static int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev) { const struct i2c_dw_semaphore_callbacks *ptr; @@ -273,16 +284,7 @@ static int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev) break; } - return 0; -} - -static void i2c_dw_remove_lock_support(struct dw_i2c_dev *dev) -{ - if (dev->semaphore_idx < 0) - return; - - if (i2c_dw_semaphore_cb_table[dev->semaphore_idx].remove) - i2c_dw_semaphore_cb_table[dev->semaphore_idx].remove(dev); + return devm_add_action_or_reset(dev->dev, i2c_dw_remove_lock_support, dev); } static void dw_i2c_plat_assert_reset(void *data) @@ -428,8 +430,6 @@ static void dw_i2c_plat_remove(struct platform_device *pdev) pm_runtime_dont_use_autosuspend(&pdev->dev); pm_runtime_put_sync(&pdev->dev); - - i2c_dw_remove_lock_support(dev); } static int dw_i2c_plat_prepare(struct device *dev) From patchwork Fri Nov 10 18:11:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862520 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; 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Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 06/25] i2c: designware: Replace a while-loop by for-loop Date: Fri, 10 Nov 2023 20:11:26 +0200 Message-ID: <20231110182304.3894319-7-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Replace a while-loop by for-loop in i2c_dw_probe_lock_support() to save a few lines of code. Signed-off-by: Andy Shevchenko Reviewed-by: Mario Limonciello Acked-by: Jarkko Nikula --- drivers/i2c/busses/i2c-designware-platdrv.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 63cc3cdca2c7..cb954f11540e 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -260,11 +260,9 @@ static int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev) int i = 0; int ret; - ptr = i2c_dw_semaphore_cb_table; - dev->semaphore_idx = -1; - while (ptr->probe) { + for (ptr = i2c_dw_semaphore_cb_table; ptr->probe; ptr++) { ret = ptr->probe(dev); if (ret) { /* @@ -276,7 +274,6 @@ static int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev) return ret; i++; - ptr++; continue; } From patchwork Fri Nov 10 18:11:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862521 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 07/25] i2c: designware: Save pointer to semaphore callbacks instead of index Date: Fri, 10 Nov 2023 20:11:27 +0200 Message-ID: <20231110182304.3894319-8-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Instead of saving index and do an additional level of referencing, save just a pointer to the semaphore callbacks directly. It makes code cleaner. Signed-off-by: Andy Shevchenko Acked-by: Jarkko Nikula --- drivers/i2c/busses/i2c-designware-core.h | 4 +++- drivers/i2c/busses/i2c-designware-platdrv.c | 12 ++++-------- 2 files changed, 7 insertions(+), 9 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index a7f6f3eafad7..f8dd87cb0ae9 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -187,6 +187,8 @@ struct clk; struct device; struct reset_control; +struct i2c_dw_semaphore_callbacks; + /** * struct dw_i2c_dev - private i2c-designware data * @dev: driver model device node @@ -291,7 +293,7 @@ struct dw_i2c_dev { u16 hs_lcnt; int (*acquire_lock)(void); void (*release_lock)(void); - int semaphore_idx; + const struct i2c_dw_semaphore_callbacks *semaphore_cb; bool shared_with_punit; void (*disable)(struct dw_i2c_dev *dev); int (*init)(struct dw_i2c_dev *dev); diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index cb954f11540e..4b5e58e1ce5b 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -247,21 +247,18 @@ static void i2c_dw_remove_lock_support(void *data) { struct dw_i2c_dev *dev = data; - if (dev->semaphore_idx < 0) + if (!dev->semaphore_cb) return; - if (i2c_dw_semaphore_cb_table[dev->semaphore_idx].remove) - i2c_dw_semaphore_cb_table[dev->semaphore_idx].remove(dev); + if (dev->semaphore_cb->remove) + dev->semaphore_cb->remove(dev); } static int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev) { const struct i2c_dw_semaphore_callbacks *ptr; - int i = 0; int ret; - dev->semaphore_idx = -1; - for (ptr = i2c_dw_semaphore_cb_table; ptr->probe; ptr++) { ret = ptr->probe(dev); if (ret) { @@ -273,11 +270,10 @@ static int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev) if (ret != -ENODEV) return ret; - i++; continue; } - dev->semaphore_idx = i; + dev->semaphore_cb = ptr; break; } From patchwork Fri Nov 10 18:11:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862518 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 08/25] i2c: designware: Add missing 'c' into PCI IDs variable name Date: Fri, 10 Nov 2023 20:11:28 +0200 Message-ID: <20231110182304.3894319-9-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add missing 'c' into i2c_designware_pci_ids variable name. Signed-off-by: Andy Shevchenko Acked-by: Jarkko Nikula --- drivers/i2c/busses/i2c-designware-pcidrv.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 175aa18f1a04..d2ed4e77afb3 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -356,7 +356,7 @@ static void i2c_dw_pci_remove(struct pci_dev *pdev) pm_runtime_get_noresume(&pdev->dev); } -static const struct pci_device_id i2_designware_pci_ids[] = { +static const struct pci_device_id i2c_designware_pci_ids[] = { /* Medfield */ { PCI_VDEVICE(INTEL, 0x0817), medfield }, { PCI_VDEVICE(INTEL, 0x0818), medfield }, @@ -404,16 +404,16 @@ static const struct pci_device_id i2_designware_pci_ids[] = { { PCI_VDEVICE(ATI, 0x7464), navi_amd }, { 0,} }; -MODULE_DEVICE_TABLE(pci, i2_designware_pci_ids); +MODULE_DEVICE_TABLE(pci, i2c_designware_pci_ids); static struct pci_driver dw_i2c_driver = { .name = DRIVER_NAME, - .id_table = i2_designware_pci_ids, .probe = i2c_dw_pci_probe, .remove = i2c_dw_pci_remove, .driver = { .pm = &i2c_dw_pm_ops, }, + .id_table = i2c_designware_pci_ids, }; 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a="798663748" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="798663748" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga001.jf.intel.com with ESMTP; 10 Nov 2023 10:23:12 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id C0972823; Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 09/25] i2c: designware: Replace MODULE_ALIAS() with MODULE_DEVICE_TABLE() Date: Fri, 10 Nov 2023 20:11:29 +0200 Message-ID: <20231110182304.3894319-10-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 As Krzysztof Kozlowski pointed out the better is to use MODULE_DEVICE_TABLE() as it will be consistent with the content of the real ID table of the platform devices. While at it, drop unneeded and unused module alias in PCI glue driver as PCI already has its own ID table and automatic loading should just work. Reviewed-by: Andi Shyti Signed-off-by: Andy Shevchenko Reviewed-by: Mario Limonciello Acked-by: Jarkko Nikula Tested-by: Jarkko Nikula --- drivers/i2c/busses/i2c-designware-pcidrv.c | 2 -- drivers/i2c/busses/i2c-designware-platdrv.c | 8 ++++++-- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index d2ed4e77afb3..db642e0aa61f 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -417,8 +417,6 @@ static struct pci_driver dw_i2c_driver = { }; module_pci_driver(dw_i2c_driver); -/* Work with hotplug and coldplug */ -MODULE_ALIAS("i2c_designware-pci"); MODULE_AUTHOR("Baruch Siach "); MODULE_DESCRIPTION("Synopsys DesignWare PCI I2C bus adapter"); MODULE_LICENSE("GPL"); diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 4b5e58e1ce5b..5d8427ccc9b4 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -486,8 +486,11 @@ static const struct dev_pm_ops dw_i2c_dev_pm_ops = { RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend, dw_i2c_plat_runtime_resume, NULL) }; -/* Work with hotplug and coldplug */ -MODULE_ALIAS("platform:i2c_designware"); +static const struct platform_device_id dw_i2c_platform_ids[] = { + { "i2c_designware" }, + {} +}; +MODULE_DEVICE_TABLE(platform, dw_i2c_platform_ids); static struct platform_driver dw_i2c_driver = { .probe = dw_i2c_plat_probe, @@ -498,6 +501,7 @@ static struct platform_driver dw_i2c_driver = { .acpi_match_table = ACPI_PTR(dw_i2c_acpi_match), .pm = pm_ptr(&dw_i2c_dev_pm_ops), }, + .id_table = dw_i2c_platform_ids, }; static int __init dw_i2c_init_driver(void) From patchwork Fri Nov 10 18:11:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862505 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=SwkxtQL8; 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X-IronPort-AV: E=McAfee;i="6600,9927,10890"; a="375251928" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="375251928" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Nov 2023 10:23:31 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10890"; a="798663749" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="798663749" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga001.jf.intel.com with ESMTP; 10 Nov 2023 10:23:12 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id C9A58835; Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 10/25] i2c: designware: Unify terminator in device ID tables Date: Fri, 10 Nov 2023 20:11:30 +0200 Message-ID: <20231110182304.3894319-11-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Make the terminator entry look the same in all device ID tables. Signed-off-by: Andy Shevchenko Reviewed-by: Mario Limonciello Acked-by: Jarkko Nikula Acked-by: Jarkko Nikula --- drivers/i2c/busses/i2c-designware-pcidrv.c | 2 +- drivers/i2c/busses/i2c-designware-platdrv.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index db642e0aa61f..7f04dc33e6f7 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -402,7 +402,7 @@ static const struct pci_device_id i2c_designware_pci_ids[] = { { PCI_VDEVICE(ATI, 0x73c4), navi_amd }, { PCI_VDEVICE(ATI, 0x7444), navi_amd }, { PCI_VDEVICE(ATI, 0x7464), navi_amd }, - { 0,} + {} }; MODULE_DEVICE_TABLE(pci, i2c_designware_pci_ids); diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 5d8427ccc9b4..018c353a456a 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -57,7 +57,7 @@ static const struct acpi_device_id dw_i2c_acpi_match[] = { { "HISI02A2", 0 }, { "HISI02A3", 0 }, { "HYGO0010", ACCESS_INTR_MASK }, - { } + {} }; MODULE_DEVICE_TABLE(acpi, dw_i2c_acpi_match); #endif @@ -153,7 +153,7 @@ static const struct of_device_id dw_i2c_of_match[] = { { .compatible = "snps,designware-i2c", }, { .compatible = "mscc,ocelot-i2c", .data = (void *)MODEL_MSCC_OCELOT }, { .compatible = "baikal,bt1-sys-i2c", .data = (void *)MODEL_BAIKAL_BT1 }, - {}, + {} }; MODULE_DEVICE_TABLE(of, dw_i2c_of_match); #else From patchwork Fri Nov 10 18:11:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862526 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=I8V0PTZK; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:45d1:ec00::1; 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X-IronPort-AV: E=McAfee;i="6600,9927,10890"; a="456715085" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="456715085" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Nov 2023 10:29:44 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10890"; a="763808266" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="763808266" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga002.jf.intel.com with ESMTP; 10 Nov 2023 10:29:40 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id D3405845; Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 11/25] i2c: designware: Always provide device ID tables Date: Fri, 10 Nov 2023 20:11:31 +0200 Message-ID: <20231110182304.3894319-12-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 There is no need to have ugly ifdeffery and additional macros for the device ID tables. Always provide them. Since we touch the ACPI table, make it sorted by ID. Reviewed-by: Andi Shyti Reviewed-by: Mario Limonciello Acked-by: Jarkko Nikula Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-platdrv.c | 62 ++++++++++----------- 1 file changed, 30 insertions(+), 32 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 018c353a456a..15f19ec20b33 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -40,28 +40,6 @@ static u32 i2c_dw_get_clk_rate_khz(struct dw_i2c_dev *dev) return clk_get_rate(dev->clk) / KILO; } -#ifdef CONFIG_ACPI -static const struct acpi_device_id dw_i2c_acpi_match[] = { - { "INT33C2", 0 }, - { "INT33C3", 0 }, - { "INT3432", 0 }, - { "INT3433", 0 }, - { "80860F41", ACCESS_NO_IRQ_SUSPEND }, - { "808622C1", ACCESS_NO_IRQ_SUSPEND }, - { "AMD0010", ACCESS_INTR_MASK }, - { "AMDI0010", ACCESS_INTR_MASK }, - { "AMDI0019", ACCESS_INTR_MASK | ARBITRATION_SEMAPHORE }, - { "AMDI0510", 0 }, - { "APMC0D0F", 0 }, - { "HISI02A1", 0 }, - { "HISI02A2", 0 }, - { "HISI02A3", 0 }, - { "HYGO0010", ACCESS_INTR_MASK }, - {} -}; -MODULE_DEVICE_TABLE(acpi, dw_i2c_acpi_match); -#endif - #ifdef CONFIG_OF #define BT1_I2C_CTL 0x100 #define BT1_I2C_CTL_ADDR_MASK GENMASK(7, 0) @@ -148,14 +126,6 @@ static int dw_i2c_of_configure(struct platform_device *pdev) return 0; } - -static const struct of_device_id dw_i2c_of_match[] = { - { .compatible = "snps,designware-i2c", }, - { .compatible = "mscc,ocelot-i2c", .data = (void *)MODEL_MSCC_OCELOT }, - { .compatible = "baikal,bt1-sys-i2c", .data = (void *)MODEL_BAIKAL_BT1 }, - {} -}; -MODULE_DEVICE_TABLE(of, dw_i2c_of_match); #else static int bt1_i2c_request_regs(struct dw_i2c_dev *dev) { @@ -486,6 +456,34 @@ static const struct dev_pm_ops dw_i2c_dev_pm_ops = { RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend, dw_i2c_plat_runtime_resume, NULL) }; +static const struct of_device_id dw_i2c_of_match[] = { + { .compatible = "snps,designware-i2c", }, + { .compatible = "mscc,ocelot-i2c", .data = (void *)MODEL_MSCC_OCELOT }, + { .compatible = "baikal,bt1-sys-i2c", .data = (void *)MODEL_BAIKAL_BT1 }, + {} +}; +MODULE_DEVICE_TABLE(of, dw_i2c_of_match); + +static const struct acpi_device_id dw_i2c_acpi_match[] = { + { "80860F41", ACCESS_NO_IRQ_SUSPEND }, + { "808622C1", ACCESS_NO_IRQ_SUSPEND }, + { "AMD0010", ACCESS_INTR_MASK }, + { "AMDI0010", ACCESS_INTR_MASK }, + { "AMDI0019", ACCESS_INTR_MASK | ARBITRATION_SEMAPHORE }, + { "AMDI0510", 0 }, + { "APMC0D0F", 0 }, + { "HISI02A1", 0 }, + { "HISI02A2", 0 }, + { "HISI02A3", 0 }, + { "HYGO0010", ACCESS_INTR_MASK }, + { "INT33C2", 0 }, + { "INT33C3", 0 }, + { "INT3432", 0 }, + { "INT3433", 0 }, + {} +}; +MODULE_DEVICE_TABLE(acpi, dw_i2c_acpi_match); + static const struct platform_device_id dw_i2c_platform_ids[] = { { "i2c_designware" }, {} @@ -497,8 +495,8 @@ static struct platform_driver dw_i2c_driver = { .remove_new = dw_i2c_plat_remove, .driver = { .name = "i2c_designware", - .of_match_table = of_match_ptr(dw_i2c_of_match), - .acpi_match_table = ACPI_PTR(dw_i2c_acpi_match), + .of_match_table = dw_i2c_of_match, + .acpi_match_table = dw_i2c_acpi_match, .pm = pm_ptr(&dw_i2c_dev_pm_ops), }, .id_table = dw_i2c_platform_ids, From patchwork Fri Nov 10 18:11:32 2023 Content-Type: text/plain; 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a="798663753" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="798663753" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga001.jf.intel.com with ESMTP; 10 Nov 2023 10:23:17 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id E04D0852; Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 12/25] i2c: designware: Drop return value from i2c_dw_acpi_configure() Date: Fri, 10 Nov 2023 20:11:32 +0200 Message-ID: <20231110182304.3894319-13-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 i2c_dw_acpi_configure() is called without checking of the returned value, hence just drop it by converting to void. Reviewed-by: Andi Shyti Signed-off-by: Andy Shevchenko Acked-by: Jarkko Nikula --- drivers/i2c/busses/i2c-designware-common.c | 4 +--- drivers/i2c/busses/i2c-designware-core.h | 4 ++-- 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index affcfb243f0f..8d2223d164e3 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -255,7 +255,7 @@ static void i2c_dw_acpi_params(struct device *device, char method[], kfree(buf.pointer); } -int i2c_dw_acpi_configure(struct device *device) +void i2c_dw_acpi_configure(struct device *device) { struct dw_i2c_dev *dev = dev_get_drvdata(device); struct i2c_timings *t = &dev->timings; @@ -285,8 +285,6 @@ int i2c_dw_acpi_configure(struct device *device) dev->sda_hold_time = fs_ht; break; } - - return 0; } EXPORT_SYMBOL_GPL(i2c_dw_acpi_configure); diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index f8dd87cb0ae9..b7884f15e0e9 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -399,7 +399,7 @@ int i2c_dw_validate_speed(struct dw_i2c_dev *dev); void i2c_dw_adjust_bus_speed(struct dw_i2c_dev *dev); #if IS_ENABLED(CONFIG_ACPI) -int i2c_dw_acpi_configure(struct device *device); +void i2c_dw_acpi_configure(struct device *device); #else -static inline int i2c_dw_acpi_configure(struct device *device) { return -ENODEV; } +static inline void i2c_dw_acpi_configure(struct device *device) { } #endif From patchwork Fri Nov 10 18:11:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862502 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=CiyTNEro; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=139.178.88.99; helo=sv.mirrors.kernel.org; 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10 Nov 2023 10:23:31 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10890"; a="798663752" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="798663752" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga001.jf.intel.com with ESMTP; 10 Nov 2023 10:23:16 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id E967685E; Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 13/25] i2c: designware: Drop return value from dw_i2c_of_configure() Date: Fri, 10 Nov 2023 20:11:33 +0200 Message-ID: <20231110182304.3894319-14-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 dw_i2c_of_configure() is called without checking of the returned value, hence just drop it by converting to void. Reviewed-by: Andi Shyti Signed-off-by: Andy Shevchenko Reviewed-by: Mario Limonciello Acked-by: Jarkko Nikula --- drivers/i2c/busses/i2c-designware-platdrv.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 15f19ec20b33..7449f1b37ecf 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -110,7 +110,7 @@ static int mscc_twi_set_sda_hold_time(struct dw_i2c_dev *dev) return 0; } -static int dw_i2c_of_configure(struct platform_device *pdev) +static void dw_i2c_of_configure(struct platform_device *pdev) { struct dw_i2c_dev *dev = platform_get_drvdata(pdev); @@ -123,8 +123,6 @@ static int dw_i2c_of_configure(struct platform_device *pdev) default: break; } - - return 0; } #else static int bt1_i2c_request_regs(struct dw_i2c_dev *dev) @@ -132,9 +130,8 @@ static int bt1_i2c_request_regs(struct dw_i2c_dev *dev) return -ENODEV; } -static inline int dw_i2c_of_configure(struct platform_device *pdev) +static inline void dw_i2c_of_configure(struct platform_device *pdev) { - return -ENODEV; } #endif From patchwork Fri Nov 10 18:11:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862524 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=NyL7DKfx; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:45d1:ec00::1; helo=ny.mirrors.kernel.org; envelope-from=linux-i2c+bounces-33-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org [IPv6:2604:1380:45d1:ec00::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SRnXH6xg1z1yRF for ; 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a="763808263" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="763808263" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga002.jf.intel.com with ESMTP; 10 Nov 2023 10:29:40 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id F2288888; Fri, 10 Nov 2023 20:23:07 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 14/25] i2c: designware: Rename dw_i2c_of_configure() -> i2c_dw_of_configure() Date: Fri, 10 Nov 2023 20:11:34 +0200 Message-ID: <20231110182304.3894319-15-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 For the sake of consistency, rename dw_i2c_of_configure() and change its parameter to be aligned with the i2c_dw_acpi_configure(). Reviewed-by: Andi Shyti Signed-off-by: Andy Shevchenko Reviewed-by: Mario Limonciello Acked-by: Jarkko Nikula --- drivers/i2c/busses/i2c-designware-platdrv.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 7449f1b37ecf..b8606b651feb 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -110,9 +110,10 @@ static int mscc_twi_set_sda_hold_time(struct dw_i2c_dev *dev) return 0; } -static void dw_i2c_of_configure(struct platform_device *pdev) +static void i2c_dw_of_configure(struct device *device) { - struct dw_i2c_dev *dev = platform_get_drvdata(pdev); + struct platform_device *pdev = to_platform_device(device); + struct dw_i2c_dev *dev = dev_get_drvdata(device); switch (dev->flags & MODEL_MASK) { case MODEL_MSCC_OCELOT: @@ -130,7 +131,7 @@ static int bt1_i2c_request_regs(struct dw_i2c_dev *dev) return -ENODEV; } -static inline void dw_i2c_of_configure(struct platform_device *pdev) +static inline void i2c_dw_of_configure(struct device *device) { } #endif @@ -306,7 +307,7 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) i2c_dw_adjust_bus_speed(dev); if (pdev->dev.of_node) - dw_i2c_of_configure(pdev); + i2c_dw_of_configure(&pdev->dev); if (has_acpi_companion(&pdev->dev)) i2c_dw_acpi_configure(&pdev->dev); From patchwork Fri Nov 10 18:11:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862501 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=HV00dD0i; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:40f1:3f00::1; helo=sy.mirrors.kernel.org; envelope-from=linux-i2c+bounces-13-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from sy.mirrors.kernel.org (sy.mirrors.kernel.org [IPv6:2604:1380:40f1:3f00::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SRnMB26cGz1yQl for ; 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a="798663761" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="798663761" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga001.jf.intel.com with ESMTP; 10 Nov 2023 10:23:21 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 080188BB; Fri, 10 Nov 2023 20:23:08 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 15/25] i2c: designware: Consolidate firmware parsing and configuring code Date: Fri, 10 Nov 2023 20:11:35 +0200 Message-ID: <20231110182304.3894319-16-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 We have the same code flows in the PCI and plaform drivers. Moreover, the flow requires the common code to export a few functions. Instead, consolidate that flow under new function called i2c_dw_fw_parse_and_configure() and drop unneeded exports. Reviewed-by: Andi Shyti Reviewed-by: Mario Limonciello Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-common.c | 68 +++++++++++++++++++-- drivers/i2c/busses/i2c-designware-core.h | 9 +-- drivers/i2c/busses/i2c-designware-pcidrv.c | 11 +--- drivers/i2c/busses/i2c-designware-platdrv.c | 48 +-------------- 4 files changed, 66 insertions(+), 70 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index 8d2223d164e3..a5cae814a9c2 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -188,7 +189,7 @@ static const u32 supported_speeds[] = { I2C_MAX_STANDARD_MODE_FREQ, }; -int i2c_dw_validate_speed(struct dw_i2c_dev *dev) +static int i2c_dw_validate_speed(struct dw_i2c_dev *dev) { struct i2c_timings *t = &dev->timings; unsigned int i; @@ -208,7 +209,44 @@ int i2c_dw_validate_speed(struct dw_i2c_dev *dev) return -EINVAL; } -EXPORT_SYMBOL_GPL(i2c_dw_validate_speed); + +#ifdef CONFIG_OF + +#include + +#define MSCC_ICPU_CFG_TWI_DELAY 0x0 +#define MSCC_ICPU_CFG_TWI_DELAY_ENABLE BIT(0) +#define MSCC_ICPU_CFG_TWI_SPIKE_FILTER 0x4 + +static int mscc_twi_set_sda_hold_time(struct dw_i2c_dev *dev) +{ + writel((dev->sda_hold_time << 1) | MSCC_ICPU_CFG_TWI_DELAY_ENABLE, + dev->ext + MSCC_ICPU_CFG_TWI_DELAY); + + return 0; +} + +static void i2c_dw_of_configure(struct device *device) +{ + struct platform_device *pdev = to_platform_device(device); + struct dw_i2c_dev *dev = dev_get_drvdata(device); + + switch (dev->flags & MODEL_MASK) { + case MODEL_MSCC_OCELOT: + dev->ext = devm_platform_ioremap_resource(pdev, 1); + if (!IS_ERR(dev->ext)) + dev->set_sda_hold_time = mscc_twi_set_sda_hold_time; + break; + default: + break; + } +} + +#else /* CONFIG_OF */ + +static inline void i2c_dw_of_configure(struct device *device) { } + +#endif /* CONFIG_OF */ #ifdef CONFIG_ACPI @@ -255,7 +293,7 @@ static void i2c_dw_acpi_params(struct device *device, char method[], kfree(buf.pointer); } -void i2c_dw_acpi_configure(struct device *device) +static void i2c_dw_acpi_configure(struct device *device) { struct dw_i2c_dev *dev = dev_get_drvdata(device); struct i2c_timings *t = &dev->timings; @@ -286,7 +324,6 @@ void i2c_dw_acpi_configure(struct device *device) break; } } -EXPORT_SYMBOL_GPL(i2c_dw_acpi_configure); static u32 i2c_dw_acpi_round_bus_speed(struct device *device) { @@ -308,11 +345,13 @@ static u32 i2c_dw_acpi_round_bus_speed(struct device *device) #else /* CONFIG_ACPI */ +static inline void i2c_dw_acpi_configure(struct device *device) { } + static inline u32 i2c_dw_acpi_round_bus_speed(struct device *device) { return 0; } #endif /* CONFIG_ACPI */ -void i2c_dw_adjust_bus_speed(struct dw_i2c_dev *dev) +static void i2c_dw_adjust_bus_speed(struct dw_i2c_dev *dev) { u32 acpi_speed = i2c_dw_acpi_round_bus_speed(dev->dev); struct i2c_timings *t = &dev->timings; @@ -328,7 +367,24 @@ void i2c_dw_adjust_bus_speed(struct dw_i2c_dev *dev) else t->bus_freq_hz = I2C_MAX_FAST_MODE_FREQ; } -EXPORT_SYMBOL_GPL(i2c_dw_adjust_bus_speed); + +int i2c_dw_fw_parse_and_configure(struct dw_i2c_dev *dev) +{ + struct i2c_timings *t = &dev->timings; + struct device *device = dev->dev; + + i2c_parse_fw_timings(device, t, false); + + i2c_dw_adjust_bus_speed(dev); + + if (device->of_node) + i2c_dw_of_configure(device); + if (has_acpi_companion(device)) + i2c_dw_acpi_configure(device); + + return i2c_dw_validate_speed(dev); +} +EXPORT_SYMBOL_GPL(i2c_dw_fw_parse_and_configure); u32 i2c_dw_scl_hcnt(u32 ic_clk, u32 tSYMBOL, u32 tf, int cond, int offset) { diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index b7884f15e0e9..22477143bb98 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -395,11 +395,4 @@ int i2c_dw_baytrail_probe_lock_support(struct dw_i2c_dev *dev); int i2c_dw_amdpsp_probe_lock_support(struct dw_i2c_dev *dev); #endif -int i2c_dw_validate_speed(struct dw_i2c_dev *dev); -void i2c_dw_adjust_bus_speed(struct dw_i2c_dev *dev); - -#if IS_ENABLED(CONFIG_ACPI) -void i2c_dw_acpi_configure(struct device *device); -#else -static inline void i2c_dw_acpi_configure(struct device *device) { } -#endif +int i2c_dw_fw_parse_and_configure(struct dw_i2c_dev *dev); diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 7f04dc33e6f7..1d1b0c3cc079 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -253,7 +253,6 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, int r; struct dw_pci_controller *controller; struct dw_scl_sda_cfg *cfg; - struct i2c_timings *t; if (id->driver_data >= ARRAY_SIZE(dw_pci_controllers)) return dev_err_probe(&pdev->dev, -EINVAL, @@ -288,9 +287,6 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, dev->irq = pci_irq_vector(pdev, 0); dev->flags |= controller->flags; - t = &dev->timings; - i2c_parse_fw_timings(&pdev->dev, t, false); - pci_set_drvdata(pdev, dev); if (controller->setup) { @@ -299,12 +295,7 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, return r; } - i2c_dw_adjust_bus_speed(dev); - - if (has_acpi_companion(&pdev->dev)) - i2c_dw_acpi_configure(&pdev->dev); - - r = i2c_dw_validate_speed(dev); + r = i2c_dw_fw_parse_and_configure(dev); if (r) return r; diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index b8606b651feb..b275a1b19eec 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include @@ -97,43 +96,11 @@ static int bt1_i2c_request_regs(struct dw_i2c_dev *dev) dev->map = devm_regmap_init(dev->dev, NULL, dev, &bt1_i2c_cfg); return PTR_ERR_OR_ZERO(dev->map); } - -#define MSCC_ICPU_CFG_TWI_DELAY 0x0 -#define MSCC_ICPU_CFG_TWI_DELAY_ENABLE BIT(0) -#define MSCC_ICPU_CFG_TWI_SPIKE_FILTER 0x4 - -static int mscc_twi_set_sda_hold_time(struct dw_i2c_dev *dev) -{ - writel((dev->sda_hold_time << 1) | MSCC_ICPU_CFG_TWI_DELAY_ENABLE, - dev->ext + MSCC_ICPU_CFG_TWI_DELAY); - - return 0; -} - -static void i2c_dw_of_configure(struct device *device) -{ - struct platform_device *pdev = to_platform_device(device); - struct dw_i2c_dev *dev = dev_get_drvdata(device); - - switch (dev->flags & MODEL_MASK) { - case MODEL_MSCC_OCELOT: - dev->ext = devm_platform_ioremap_resource(pdev, 1); - if (!IS_ERR(dev->ext)) - dev->set_sda_hold_time = mscc_twi_set_sda_hold_time; - break; - default: - break; - } -} #else static int bt1_i2c_request_regs(struct dw_i2c_dev *dev) { return -ENODEV; } - -static inline void i2c_dw_of_configure(struct device *device) -{ -} #endif static int txgbe_i2c_request_regs(struct dw_i2c_dev *dev) @@ -274,7 +241,6 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) { struct i2c_adapter *adap; struct dw_i2c_dev *dev; - struct i2c_timings *t; int irq, ret; irq = platform_get_irq(pdev, 0); @@ -301,18 +267,7 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) if (ret) return ret; - t = &dev->timings; - i2c_parse_fw_timings(&pdev->dev, t, false); - - i2c_dw_adjust_bus_speed(dev); - - if (pdev->dev.of_node) - i2c_dw_of_configure(&pdev->dev); - - if (has_acpi_companion(&pdev->dev)) - i2c_dw_acpi_configure(&pdev->dev); - - ret = i2c_dw_validate_speed(dev); + ret = i2c_dw_fw_parse_and_configure(dev); if (ret) return ret; @@ -336,6 +291,7 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) return ret; if (dev->clk) { + struct i2c_timings *t = &dev->timings; u64 clk_khz; dev->get_clk_rate_khz = i2c_dw_get_clk_rate_khz; From patchwork Fri Nov 10 18:11:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862517 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=HoLZ3TZG; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; 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Reviewed-by: Andi Shyti Reviewed-by: Mario Limonciello Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-common.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index a5cae814a9c2..49d9d5f83071 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -372,14 +373,15 @@ int i2c_dw_fw_parse_and_configure(struct dw_i2c_dev *dev) { struct i2c_timings *t = &dev->timings; struct device *device = dev->dev; + struct fwnode_handle *fwnode = dev_fwnode(device); i2c_parse_fw_timings(device, t, false); i2c_dw_adjust_bus_speed(dev); - if (device->of_node) + if (is_of_node(fwnode)) i2c_dw_of_configure(device); - if (has_acpi_companion(device)) + else if (is_acpi_node(fwnode)) i2c_dw_acpi_configure(device); return i2c_dw_validate_speed(dev); 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a="798663764" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="798663764" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga001.jf.intel.com with ESMTP; 10 Nov 2023 10:23:21 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 1F2318C9; Fri, 10 Nov 2023 20:23:08 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 17/25] i2c: designware: Move exports to I2C_DW namespaces Date: Fri, 10 Nov 2023 20:11:37 +0200 Message-ID: <20231110182304.3894319-18-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Reduce scope of the I²C DesignWare driver exports to I2C_DW namespaces. This will prevent abuse of the symbols and clean up global namespace. Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-common.c | 2 ++ drivers/i2c/busses/i2c-designware-master.c | 3 +++ drivers/i2c/busses/i2c-designware-pcidrv.c | 2 ++ drivers/i2c/busses/i2c-designware-platdrv.c | 2 ++ drivers/i2c/busses/i2c-designware-slave.c | 3 +++ 5 files changed, 12 insertions(+) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index 49d9d5f83071..50cf4cbfeff3 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -28,6 +28,8 @@ #include #include +#define DEFAULT_SYMBOL_NAMESPACE I2C_DW_COMMON + #include "i2c-designware-core.h" static char *abort_sources[] = { diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index 85dbd0eb5392..0b6576d7f811 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -22,6 +22,8 @@ #include #include +#define DEFAULT_SYMBOL_NAMESPACE I2C_DW + #include "i2c-designware-core.h" #define AMD_TIMEOUT_MIN_US 25 @@ -1079,3 +1081,4 @@ EXPORT_SYMBOL_GPL(i2c_dw_probe_master); MODULE_DESCRIPTION("Synopsys DesignWare I2C bus master adapter"); MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(I2C_DW_COMMON); diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 1d1b0c3cc079..93a117d295d7 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -411,3 +411,5 @@ module_pci_driver(dw_i2c_driver); MODULE_AUTHOR("Baruch Siach "); MODULE_DESCRIPTION("Synopsys DesignWare PCI I2C bus adapter"); MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(I2C_DW); +MODULE_IMPORT_NS(I2C_DW_COMMON); diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index b275a1b19eec..6b1a26afc278 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -471,3 +471,5 @@ module_exit(dw_i2c_exit_driver); MODULE_AUTHOR("Baruch Siach "); MODULE_DESCRIPTION("Synopsys DesignWare I2C bus adapter"); MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(I2C_DW); +MODULE_IMPORT_NS(I2C_DW_COMMON); diff --git a/drivers/i2c/busses/i2c-designware-slave.c b/drivers/i2c/busses/i2c-designware-slave.c index 2e079cf20bb5..70d183fa3bff 100644 --- a/drivers/i2c/busses/i2c-designware-slave.c +++ b/drivers/i2c/busses/i2c-designware-slave.c @@ -16,6 +16,8 @@ #include #include +#define DEFAULT_SYMBOL_NAMESPACE I2C_DW + #include "i2c-designware-core.h" static void i2c_dw_configure_fifo_slave(struct dw_i2c_dev *dev) @@ -279,3 +281,4 @@ EXPORT_SYMBOL_GPL(i2c_dw_probe_slave); MODULE_AUTHOR("Luis Oliveira "); MODULE_DESCRIPTION("Synopsys DesignWare I2C bus slave adapter"); MODULE_LICENSE("GPL v2"); +MODULE_IMPORT_NS(I2C_DW_COMMON); From patchwork Fri Nov 10 18:11:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862513 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Fri, 10 Nov 2023 20:23:08 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 18/25] i2c: designware: Remove ->disable() callback Date: Fri, 10 Nov 2023 20:11:38 +0200 Message-ID: <20231110182304.3894319-19-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Commit 90312351fd1e ("i2c: designware: MASTER mode as separated driver") introduced ->disable() callback but there is no real use for it. Both i2c-designware-master.c and i2c-designware-slave.c set it to the same i2c_dw_disable() and scope is inside the same kernel module. That said, replace the callback by explicitly calling the i2c_dw_disable(). Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-core.h | 2 -- drivers/i2c/busses/i2c-designware-master.c | 1 - drivers/i2c/busses/i2c-designware-pcidrv.c | 4 ++-- drivers/i2c/busses/i2c-designware-platdrv.c | 4 ++-- drivers/i2c/busses/i2c-designware-slave.c | 3 +-- 5 files changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index 22477143bb98..52667d670363 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -238,7 +238,6 @@ struct i2c_dw_semaphore_callbacks; * @semaphore_idx: Index of table with semaphore type attached to the bus. It's * -1 if there is no semaphore. * @shared_with_punit: true if this bus is shared with the SoCs PUNIT - * @disable: function to disable the controller * @init: function to initialize the I2C hardware * @set_sda_hold_time: callback to retrieve IP specific SDA hold timing * @mode: operation mode - DW_IC_MASTER or DW_IC_SLAVE @@ -295,7 +294,6 @@ struct dw_i2c_dev { void (*release_lock)(void); const struct i2c_dw_semaphore_callbacks *semaphore_cb; bool shared_with_punit; - void (*disable)(struct dw_i2c_dev *dev); int (*init)(struct dw_i2c_dev *dev); int (*set_sda_hold_time)(struct dw_i2c_dev *dev); int mode; diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index 0b6576d7f811..bd3c8db521de 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -990,7 +990,6 @@ int i2c_dw_probe_master(struct dw_i2c_dev *dev) init_completion(&dev->cmd_complete); dev->init = i2c_dw_init_master; - dev->disable = i2c_dw_disable; ret = i2c_dw_init_regmap(dev); if (ret) diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 93a117d295d7..6fd4a3d8764a 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -198,7 +198,7 @@ static int __maybe_unused i2c_dw_pci_runtime_suspend(struct device *dev) { struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - i_dev->disable(i_dev); + i2c_dw_disable(i_dev); return 0; } @@ -341,7 +341,7 @@ static void i2c_dw_pci_remove(struct pci_dev *pdev) i2c_del_adapter(&dev->adapter); - dev->disable(dev); + i2c_dw_disable(dev); pm_runtime_forbid(&pdev->dev); pm_runtime_get_noresume(&pdev->dev); diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 6b1a26afc278..9b249d27841d 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -343,7 +343,7 @@ static void dw_i2c_plat_remove(struct platform_device *pdev) i2c_del_adapter(&dev->adapter); - dev->disable(dev); + i2c_dw_disable(dev); pm_runtime_dont_use_autosuspend(&pdev->dev); pm_runtime_put_sync(&pdev->dev); @@ -367,7 +367,7 @@ static int dw_i2c_plat_runtime_suspend(struct device *dev) if (i_dev->shared_with_punit) return 0; - i_dev->disable(i_dev); + i2c_dw_disable(i_dev); i2c_dw_prepare_clk(i_dev, false); return 0; diff --git a/drivers/i2c/busses/i2c-designware-slave.c b/drivers/i2c/busses/i2c-designware-slave.c index 70d183fa3bff..5abd5ec41954 100644 --- a/drivers/i2c/busses/i2c-designware-slave.c +++ b/drivers/i2c/busses/i2c-designware-slave.c @@ -90,7 +90,7 @@ static int i2c_dw_unreg_slave(struct i2c_client *slave) struct dw_i2c_dev *dev = i2c_get_adapdata(slave->adapter); regmap_write(dev->map, DW_IC_INTR_MASK, 0); - dev->disable(dev); + i2c_dw_disable(dev); synchronize_irq(dev->irq); dev->slave = NULL; pm_runtime_put(dev->dev); @@ -237,7 +237,6 @@ int i2c_dw_probe_slave(struct dw_i2c_dev *dev) int ret; dev->init = i2c_dw_init_slave; - dev->disable = i2c_dw_disable; ret = i2c_dw_init_regmap(dev); if (ret) From patchwork Fri Nov 10 18:11:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862509 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=SKyRDH++; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:45e3:2400::1; helo=sv.mirrors.kernel.org; envelope-from=linux-i2c+bounces-20-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org [IPv6:2604:1380:45e3:2400::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SRnP20ztMz1yQl for ; 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a="798663771" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="798663771" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga001.jf.intel.com with ESMTP; 10 Nov 2023 10:23:24 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 34FE98D6; Fri, 10 Nov 2023 20:23:08 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 19/25] i2c: designware: Consolidate PM ops Date: Fri, 10 Nov 2023 20:11:39 +0200 Message-ID: <20231110182304.3894319-20-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 We have the same (*) PM ops in the PCI and plaform drivers. Instead, consolidate that PM ops under exported variable and deduplicate them. *) With the subtle ACPI and P-Unit behaviour differences in PCI case. But this is not a problem as for ACPI we need to take care of the P-Unit semaphore anyway and calling PM ops for ACPI makes sense as it might provide specific operation regions in (however there are no known devices on market that are using it with PCI enabled I2C). Note, the clocks are not in use in the PCI case. Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-common.c | 62 ++++++++++++++++++++ drivers/i2c/busses/i2c-designware-core.h | 5 +- drivers/i2c/busses/i2c-designware-pcidrv.c | 44 +------------- drivers/i2c/busses/i2c-designware-platdrv.c | 64 +-------------------- 4 files changed, 69 insertions(+), 106 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index 50cf4cbfeff3..b7e653e939bd 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include @@ -712,5 +713,66 @@ void i2c_dw_disable(struct dw_i2c_dev *dev) i2c_dw_release_lock(dev); } +static int i2c_dw_prepare(struct device *device) +{ + /* + * If the ACPI companion device object is present for this device, + * it may be accessed during suspend and resume of other devices via + * I2C operation regions, so tell the PM core and middle layers to + * avoid skipping system suspend/resume callbacks for it in that case. + */ + return !has_acpi_companion(device); +} + +static int i2c_dw_runtime_suspend(struct device *device) +{ + struct dw_i2c_dev *dev = dev_get_drvdata(device); + + if (dev->shared_with_punit) + return 0; + + i2c_dw_disable(dev); + i2c_dw_prepare_clk(dev, false); + + return 0; +} + +static int i2c_dw_suspend(struct device *device) +{ + struct dw_i2c_dev *dev = dev_get_drvdata(device); + + i2c_mark_adapter_suspended(&dev->adapter); + + return i2c_dw_runtime_suspend(device); +} + +static int i2c_dw_runtime_resume(struct device *device) +{ + struct dw_i2c_dev *dev = dev_get_drvdata(device); + + if (!dev->shared_with_punit) + i2c_dw_prepare_clk(dev, true); + + dev->init(dev); + + return 0; +} + +static int i2c_dw_resume(struct device *device) +{ + struct dw_i2c_dev *dev = dev_get_drvdata(device); + + i2c_dw_runtime_resume(device); + i2c_mark_adapter_resumed(&dev->adapter); + + return 0; +} + +EXPORT_GPL_DEV_PM_OPS(i2c_dw_dev_pm_ops) = { + .prepare = pm_sleep_ptr(i2c_dw_prepare), + LATE_SYSTEM_SLEEP_PM_OPS(i2c_dw_suspend, i2c_dw_resume) + RUNTIME_PM_OPS(i2c_dw_runtime_suspend, i2c_dw_runtime_resume, NULL) +}; + MODULE_DESCRIPTION("Synopsys DesignWare I2C bus adapter core"); MODULE_LICENSE("GPL"); diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index 52667d670363..f6ebf86dcc6f 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -337,7 +338,8 @@ int i2c_dw_wait_bus_not_busy(struct dw_i2c_dev *dev); int i2c_dw_handle_tx_abort(struct dw_i2c_dev *dev); int i2c_dw_set_fifo_size(struct dw_i2c_dev *dev); u32 i2c_dw_func(struct i2c_adapter *adap); -void i2c_dw_disable(struct dw_i2c_dev *dev); + +extern const struct dev_pm_ops i2c_dw_dev_pm_ops; static inline void __i2c_dw_enable(struct dw_i2c_dev *dev) { @@ -352,6 +354,7 @@ static inline void __i2c_dw_disable_nowait(struct dw_i2c_dev *dev) } void __i2c_dw_disable(struct dw_i2c_dev *dev); +void i2c_dw_disable(struct dw_i2c_dev *dev); extern void i2c_dw_configure_master(struct dw_i2c_dev *dev); extern int i2c_dw_probe_master(struct dw_i2c_dev *dev); diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 6fd4a3d8764a..c9eb01a16048 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -194,47 +195,6 @@ static struct dw_pci_controller dw_pci_controllers[] = { }, }; -static int __maybe_unused i2c_dw_pci_runtime_suspend(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - i2c_dw_disable(i_dev); - return 0; -} - -static int __maybe_unused i2c_dw_pci_suspend(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - i2c_mark_adapter_suspended(&i_dev->adapter); - - return i2c_dw_pci_runtime_suspend(dev); -} - -static int __maybe_unused i2c_dw_pci_runtime_resume(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - return i_dev->init(i_dev); -} - -static int __maybe_unused i2c_dw_pci_resume(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - int ret; - - ret = i2c_dw_pci_runtime_resume(dev); - - i2c_mark_adapter_resumed(&i_dev->adapter); - - return ret; -} - -static const struct dev_pm_ops i2c_dw_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(i2c_dw_pci_suspend, i2c_dw_pci_resume) - SET_RUNTIME_PM_OPS(i2c_dw_pci_runtime_suspend, i2c_dw_pci_runtime_resume, NULL) -}; - static const struct property_entry dgpu_properties[] = { /* USB-C doesn't power the system */ PROPERTY_ENTRY_U8("scope", POWER_SUPPLY_SCOPE_DEVICE), @@ -402,7 +362,7 @@ static struct pci_driver dw_i2c_driver = { .probe = i2c_dw_pci_probe, .remove = i2c_dw_pci_remove, .driver = { - .pm = &i2c_dw_pm_ops, + .pm = pm_ptr(&i2c_dw_dev_pm_ops), }, .id_table = i2c_designware_pci_ids, }; diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 9b249d27841d..d9a64006a3d6 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -29,7 +29,6 @@ #include #include #include -#include #include #include "i2c-designware-core.h" @@ -349,67 +348,6 @@ static void dw_i2c_plat_remove(struct platform_device *pdev) pm_runtime_put_sync(&pdev->dev); } -static int dw_i2c_plat_prepare(struct device *dev) -{ - /* - * If the ACPI companion device object is present for this device, it - * may be accessed during suspend and resume of other devices via I2C - * operation regions, so tell the PM core and middle layers to avoid - * skipping system suspend/resume callbacks for it in that case. - */ - return !has_acpi_companion(dev); -} - -static int dw_i2c_plat_runtime_suspend(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - if (i_dev->shared_with_punit) - return 0; - - i2c_dw_disable(i_dev); - i2c_dw_prepare_clk(i_dev, false); - - return 0; -} - -static int dw_i2c_plat_suspend(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - i2c_mark_adapter_suspended(&i_dev->adapter); - - return dw_i2c_plat_runtime_suspend(dev); -} - -static int dw_i2c_plat_runtime_resume(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - if (!i_dev->shared_with_punit) - i2c_dw_prepare_clk(i_dev, true); - - i_dev->init(i_dev); - - return 0; -} - -static int dw_i2c_plat_resume(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - dw_i2c_plat_runtime_resume(dev); - i2c_mark_adapter_resumed(&i_dev->adapter); - - return 0; -} - -static const struct dev_pm_ops dw_i2c_dev_pm_ops = { - .prepare = pm_sleep_ptr(dw_i2c_plat_prepare), - LATE_SYSTEM_SLEEP_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume) - RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend, dw_i2c_plat_runtime_resume, NULL) -}; - static const struct of_device_id dw_i2c_of_match[] = { { .compatible = "snps,designware-i2c", }, { .compatible = "mscc,ocelot-i2c", .data = (void *)MODEL_MSCC_OCELOT }, @@ -451,7 +389,7 @@ static struct platform_driver dw_i2c_driver = { .name = "i2c_designware", .of_match_table = dw_i2c_of_match, .acpi_match_table = dw_i2c_acpi_match, - .pm = pm_ptr(&dw_i2c_dev_pm_ops), + .pm = pm_ptr(&i2c_dw_dev_pm_ops), }, .id_table = dw_i2c_platform_ids, }; From patchwork Fri Nov 10 18:11:40 2023 Content-Type: text/plain; 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a="792912167" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="792912167" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga008.jf.intel.com with ESMTP; 10 Nov 2023 10:29:40 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 3F97F8D7; Fri, 10 Nov 2023 20:23:08 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 20/25] i2c: designware: Uninline i2c_dw_probe() Date: Fri, 10 Nov 2023 20:11:40 +0200 Message-ID: <20231110182304.3894319-21-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Since i2c_dw_probe() is going to be extended, uninline it to reduce the noise in the common header. Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-common.c | 14 ++++++++++++++ drivers/i2c/busses/i2c-designware-core.h | 17 ++--------------- 2 files changed, 16 insertions(+), 15 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index b7e653e939bd..68d6a1c642a0 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -713,6 +713,20 @@ void i2c_dw_disable(struct dw_i2c_dev *dev) i2c_dw_release_lock(dev); } +int i2c_dw_probe(struct dw_i2c_dev *dev) +{ + switch (dev->mode) { + case DW_IC_SLAVE: + return i2c_dw_probe_slave(dev); + case DW_IC_MASTER: + return i2c_dw_probe_master(dev); + default: + dev_err(dev->dev, "Wrong operation mode: %d\n", dev->mode); + return -EINVAL; + } +} +EXPORT_SYMBOL_GPL(i2c_dw_probe); + static int i2c_dw_prepare(struct device *device) { /* diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index f6ebf86dcc6f..7479cb3a450d 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -10,9 +10,7 @@ */ #include -#include #include -#include #include #include #include @@ -367,19 +365,6 @@ static inline void i2c_dw_configure_slave(struct dw_i2c_dev *dev) { } static inline int i2c_dw_probe_slave(struct dw_i2c_dev *dev) { return -EINVAL; } #endif -static inline int i2c_dw_probe(struct dw_i2c_dev *dev) -{ - switch (dev->mode) { - case DW_IC_SLAVE: - return i2c_dw_probe_slave(dev); - case DW_IC_MASTER: - return i2c_dw_probe_master(dev); - default: - dev_err(dev->dev, "Wrong operation mode: %d\n", dev->mode); - return -EINVAL; - } -} - static inline void i2c_dw_configure(struct dw_i2c_dev *dev) { if (i2c_detect_slave_mode(dev->dev)) @@ -388,6 +373,8 @@ static inline void i2c_dw_configure(struct dw_i2c_dev *dev) i2c_dw_configure_master(dev); } +int i2c_dw_probe(struct dw_i2c_dev *dev); + #if IS_ENABLED(CONFIG_I2C_DESIGNWARE_BAYTRAIL) int i2c_dw_baytrail_probe_lock_support(struct dw_i2c_dev *dev); #endif From patchwork Fri Nov 10 18:11:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862503 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Fri, 10 Nov 2023 20:23:08 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 21/25] i2c: designware: Propagate firmware node Date: Fri, 10 Nov 2023 20:11:41 +0200 Message-ID: <20231110182304.3894319-22-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Propagate firmware node by using a specific API call, i.e. device_set_node(). Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-common.c | 2 ++ drivers/i2c/busses/i2c-designware-pcidrv.c | 2 -- drivers/i2c/busses/i2c-designware-platdrv.c | 3 --- 3 files changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index 68d6a1c642a0..45b5c910b8db 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -715,6 +715,8 @@ void i2c_dw_disable(struct dw_i2c_dev *dev) int i2c_dw_probe(struct dw_i2c_dev *dev) { + device_set_node(&dev->adapter.dev, dev_fwnode(dev->dev)); + switch (dev->mode) { case DW_IC_SLAVE: return i2c_dw_probe_slave(dev); diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index c9eb01a16048..f9fbd41c188d 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -9,7 +9,6 @@ * Copyright (C) 2009 Provigent Ltd. * Copyright (C) 2011, 2015, 2016 Intel Corporation. */ -#include #include #include #include @@ -273,7 +272,6 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, adap = &dev->adapter; adap->owner = THIS_MODULE; adap->class = 0; - ACPI_COMPANION_SET(&adap->dev, ACPI_COMPANION(&pdev->dev)); adap->nr = controller->bus_num; r = i2c_dw_probe(dev); diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index d9a64006a3d6..1b76f721bf81 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -8,7 +8,6 @@ * Copyright (C) 2007 MontaVista Software Inc. * Copyright (C) 2009 Provigent Ltd. */ -#include #include #include #include @@ -305,8 +304,6 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) adap->owner = THIS_MODULE; adap->class = dmi_check_system(dw_i2c_hwmon_class_dmi) ? I2C_CLASS_HWMON : I2C_CLASS_DEPRECATED; - ACPI_COMPANION_SET(&adap->dev, ACPI_COMPANION(&pdev->dev)); - adap->dev.of_node = pdev->dev.of_node; adap->nr = -1; if (dev->flags & ACCESS_NO_IRQ_SUSPEND) { From patchwork Fri Nov 10 18:11:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862522 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=aCJIZkso; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=147.75.48.161; helo=sy.mirrors.kernel.org; envelope-from=linux-i2c+bounces-31-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from sy.mirrors.kernel.org (sy.mirrors.kernel.org [147.75.48.161]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SRnWl3MJPz1yRF for ; Sat, 11 Nov 2023 05:33:23 +1100 (AEDT) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sy.mirrors.kernel.org (Postfix) with ESMTPS id BA450B20D73 for ; Fri, 10 Nov 2023 18:33:22 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id C65FB200D7; Fri, 10 Nov 2023 18:33:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="aCJIZkso" X-Original-To: linux-i2c@vger.kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 73E1E3219E for ; Fri, 10 Nov 2023 18:33:14 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0C7B87693; Fri, 10 Nov 2023 10:32:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699641144; x=1731177144; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=bEJAV9zxfyI2elm8JN4vfIfB/68Bb0SGglHF3L4Fy+Y=; b=aCJIZksonkYiMiWdefRMRkeGVig9iU8p98Cg3KYv0yyKgye3yzTvrtev XmpwRrWS/tUVDtFMlHgrE6gR4uCvXssgrHsDFdcAK6whAOoUsXjQjIwjG wSRwhjQxF98frtUFcjr0olnoxuJ7G84SXd4+a7ZKm+lM9N1CI+pr7a1rf pagsbr+MrseWLs1OQLPsia4LXdRuYZDXsYtmtXIT/JpWje4029VEw4iVX 0R/DBp76W/MkyZ268q7hyIoZl0O5t37Mvpg7/A+z1oS+219pfbWY2dOmC JT+Jx5SMPzbsXmIErOl8cLtg/SOBOM1ZBR5oUduAiK+nQerhive0LQlE9 w==; X-IronPort-AV: E=McAfee;i="6600,9927,10890"; a="456715067" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="456715067" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Nov 2023 10:29:43 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10890"; a="763808264" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="763808264" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga002.jf.intel.com with ESMTP; 10 Nov 2023 10:29:40 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 571888E8; Fri, 10 Nov 2023 20:23:08 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 22/25] i2c: designware: Use pci_get_drvdata() Date: Fri, 10 Nov 2023 20:11:42 +0200 Message-ID: <20231110182304.3894319-23-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Use the wrapper function for getting the driver data using pci_dev instead of using dev_get_drvdata() with &pdev->dev, so we can directly pass a struct pci_dev. This is a purely cosmetic change. Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-pcidrv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index f9fbd41c188d..826c0c0a7c8d 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -102,7 +102,7 @@ static u32 mfld_get_clk_rate_khz(struct dw_i2c_dev *dev) static int mfld_setup(struct pci_dev *pdev, struct dw_pci_controller *c) { - struct dw_i2c_dev *dev = dev_get_drvdata(&pdev->dev); + struct dw_i2c_dev *dev = pci_get_drvdata(pdev); switch (pdev->device) { case 0x0817: @@ -152,7 +152,7 @@ static u32 navi_amd_get_clk_rate_khz(struct dw_i2c_dev *dev) static int navi_amd_setup(struct pci_dev *pdev, struct dw_pci_controller *c) { - struct dw_i2c_dev *dev = dev_get_drvdata(&pdev->dev); + struct dw_i2c_dev *dev = pci_get_drvdata(pdev); dev->flags |= MODEL_AMD_NAVI_GPU; dev->timings.bus_freq_hz = I2C_MAX_STANDARD_MODE_FREQ; 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a="798663774" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="798663774" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga001.jf.intel.com with ESMTP; 10 Nov 2023 10:23:28 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 5CEE88E3; Fri, 10 Nov 2023 20:23:08 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 23/25] i2c: designware: Use temporary variable for struct device Date: Fri, 10 Nov 2023 20:11:43 +0200 Message-ID: <20231110182304.3894319-24-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Use temporary variable for struct device to make code neater. Signed-off-by: Andy Shevchenko Reviewed-by: Mario Limonciello --- drivers/i2c/busses/i2c-designware-pcidrv.c | 24 +++++++------- drivers/i2c/busses/i2c-designware-platdrv.c | 35 ++++++++++----------- 2 files changed, 27 insertions(+), 32 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 826c0c0a7c8d..34002c5eb67c 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -207,6 +207,7 @@ static const struct software_node dgpu_node = { static int i2c_dw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { + struct device *device = &pdev->dev; struct dw_i2c_dev *dev; struct i2c_adapter *adap; int r; @@ -214,25 +215,22 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, struct dw_scl_sda_cfg *cfg; if (id->driver_data >= ARRAY_SIZE(dw_pci_controllers)) - return dev_err_probe(&pdev->dev, -EINVAL, - "Invalid driver data %ld\n", + return dev_err_probe(device, -EINVAL, "Invalid driver data %ld\n", id->driver_data); controller = &dw_pci_controllers[id->driver_data]; r = pcim_enable_device(pdev); if (r) - return dev_err_probe(&pdev->dev, r, - "Failed to enable I2C PCI device\n"); + return dev_err_probe(device, r, "Failed to enable I2C PCI device\n"); pci_set_master(pdev); r = pcim_iomap_regions(pdev, 1 << 0, pci_name(pdev)); if (r) - return dev_err_probe(&pdev->dev, r, - "I/O memory remapping failed\n"); + return dev_err_probe(device, r, "I/O memory remapping failed\n"); - dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); + dev = devm_kzalloc(device, sizeof(*dev), GFP_KERNEL); if (!dev) return -ENOMEM; @@ -242,7 +240,7 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, dev->get_clk_rate_khz = controller->get_clk_rate_khz; dev->base = pcim_iomap_table(pdev)[0]; - dev->dev = &pdev->dev; + dev->dev = device; dev->irq = pci_irq_vector(pdev, 0); dev->flags |= controller->flags; @@ -281,14 +279,14 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, if ((dev->flags & MODEL_MASK) == MODEL_AMD_NAVI_GPU) { dev->slave = i2c_new_ccgx_ucsi(&dev->adapter, dev->irq, &dgpu_node); if (IS_ERR(dev->slave)) - return dev_err_probe(dev->dev, PTR_ERR(dev->slave), + return dev_err_probe(device, PTR_ERR(dev->slave), "register UCSI failed\n"); } - pm_runtime_set_autosuspend_delay(&pdev->dev, 1000); - pm_runtime_use_autosuspend(&pdev->dev); - pm_runtime_put_autosuspend(&pdev->dev); - pm_runtime_allow(&pdev->dev); + pm_runtime_set_autosuspend_delay(device, 1000); + pm_runtime_use_autosuspend(device); + pm_runtime_put_autosuspend(device); + pm_runtime_allow(device); return 0; } diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 1b76f721bf81..02dc1d1001f2 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -237,6 +237,7 @@ static int dw_i2c_plat_get_reset(struct dw_i2c_dev *dev) static int dw_i2c_plat_probe(struct platform_device *pdev) { + struct device *device = &pdev->dev; struct i2c_adapter *adap; struct dw_i2c_dev *dev; int irq, ret; @@ -245,15 +246,15 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) if (irq < 0) return irq; - dev = devm_kzalloc(&pdev->dev, sizeof(struct dw_i2c_dev), GFP_KERNEL); + dev = devm_kzalloc(device, sizeof(*dev), GFP_KERNEL); if (!dev) return -ENOMEM; - dev->flags = (uintptr_t)device_get_match_data(&pdev->dev); - if (device_property_present(&pdev->dev, "wx,i2c-snps-model")) + dev->flags = (uintptr_t)device_get_match_data(device); + if (device_property_present(device, "wx,i2c-snps-model")) dev->flags = MODEL_WANGXUN_SP; - dev->dev = &pdev->dev; + dev->dev = device; dev->irq = irq; platform_set_drvdata(pdev, dev); @@ -276,11 +277,11 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) i2c_dw_configure(dev); /* Optional interface clock */ - dev->pclk = devm_clk_get_optional(&pdev->dev, "pclk"); + dev->pclk = devm_clk_get_optional(device, "pclk"); if (IS_ERR(dev->pclk)) return PTR_ERR(dev->pclk); - dev->clk = devm_clk_get_optional(&pdev->dev, NULL); + dev->clk = devm_clk_get_optional(device, NULL); if (IS_ERR(dev->clk)) return PTR_ERR(dev->clk); @@ -306,23 +307,19 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) I2C_CLASS_HWMON : I2C_CLASS_DEPRECATED; adap->nr = -1; - if (dev->flags & ACCESS_NO_IRQ_SUSPEND) { - dev_pm_set_driver_flags(&pdev->dev, - DPM_FLAG_SMART_PREPARE); - } else { - dev_pm_set_driver_flags(&pdev->dev, - DPM_FLAG_SMART_PREPARE | - DPM_FLAG_SMART_SUSPEND); - } + if (dev->flags & ACCESS_NO_IRQ_SUSPEND) + dev_pm_set_driver_flags(device, DPM_FLAG_SMART_PREPARE); + else + dev_pm_set_driver_flags(device, DPM_FLAG_SMART_PREPARE | DPM_FLAG_SMART_SUSPEND); - device_enable_async_suspend(&pdev->dev); + device_enable_async_suspend(device); /* The code below assumes runtime PM to be disabled. */ - WARN_ON(pm_runtime_enabled(&pdev->dev)); + WARN_ON(pm_runtime_enabled(device)); - pm_runtime_set_autosuspend_delay(&pdev->dev, 1000); - pm_runtime_use_autosuspend(&pdev->dev); - pm_runtime_set_active(&pdev->dev); + pm_runtime_set_autosuspend_delay(device, 1000); + pm_runtime_use_autosuspend(device); + pm_runtime_set_active(device); ret = dw_i2c_plat_pm_setup(dev); if (ret) From patchwork Fri Nov 10 18:11:44 2023 Content-Type: text/plain; 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a="792912170" X-IronPort-AV: E=Sophos;i="6.03,291,1694761200"; d="scan'208";a="792912170" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga008.jf.intel.com with ESMTP; 10 Nov 2023 10:29:40 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 6D374918; Fri, 10 Nov 2023 20:23:08 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 24/25] i2c: designware: Get rid of redundant 'else' Date: Fri, 10 Nov 2023 20:11:44 +0200 Message-ID: <20231110182304.3894319-25-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In the snippets like the following if (...) return / goto / break / continue ...; else ... the 'else' is redundant. Get rid of it. Reviewed-by: Andi Shyti Reviewed-by: Mario Limonciello Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-common.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index 45b5c910b8db..5e28f50e4ce6 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -639,10 +639,10 @@ int i2c_dw_handle_tx_abort(struct dw_i2c_dev *dev) if (abort_source & DW_IC_TX_ARB_LOST) return -EAGAIN; - else if (abort_source & DW_IC_TX_ABRT_GCALL_READ) + if (abort_source & DW_IC_TX_ABRT_GCALL_READ) return -EINVAL; /* wrong msgs[] data */ - else - return -EIO; + + return -EIO; } int i2c_dw_set_fifo_size(struct dw_i2c_dev *dev) From patchwork Fri Nov 10 18:11:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862510 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Fri, 10 Nov 2023 20:23:08 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Mario Limonciello , Herbert Xu , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Philipp Zabel , Hans de Goede Subject: [PATCH v3 25/25] i2c: designware: Fix spelling and other issues in the comments Date: Fri, 10 Nov 2023 20:11:45 +0200 Message-ID: <20231110182304.3894319-26-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1.gbec44491f096 In-Reply-To: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> References: <20231110182304.3894319-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Fix spelling and other issues, such as kernel-doc reported about, in the comments. While at it, fix some indentation issues as well. Signed-off-by: Andy Shevchenko Reviewed-by: Mario Limonciello --- drivers/i2c/busses/i2c-designware-amdpsp.c | 10 +++++----- drivers/i2c/busses/i2c-designware-common.c | 8 +++++--- drivers/i2c/busses/i2c-designware-core.h | 10 +++++----- drivers/i2c/busses/i2c-designware-master.c | 15 +++++++++------ drivers/i2c/busses/i2c-designware-platdrv.c | 4 ++-- drivers/i2c/busses/i2c-designware-slave.c | 6 ++++-- 6 files changed, 30 insertions(+), 23 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-amdpsp.c b/drivers/i2c/busses/i2c-designware-amdpsp.c index 63454b06e5da..8fbd2a10c31a 100644 --- a/drivers/i2c/busses/i2c-designware-amdpsp.c +++ b/drivers/i2c/busses/i2c-designware-amdpsp.c @@ -155,7 +155,7 @@ static void psp_release_i2c_bus_deferred(struct work_struct *work) /* * If there is any pending transaction, cannot release the bus here. - * psp_release_i2c_bus will take care of this later. + * psp_release_i2c_bus() will take care of this later. */ if (psp_i2c_access_count) goto cleanup; @@ -210,12 +210,12 @@ static void psp_release_i2c_bus(void) { mutex_lock(&psp_i2c_access_mutex); - /* Return early if mailbox was malfunctional */ + /* Return early if mailbox was malfunctioned */ if (psp_i2c_mbox_fail) goto cleanup; /* - * If we are last owner of PSP semaphore, need to release aribtration + * If we are last owner of PSP semaphore, need to release arbitration * via mailbox. */ psp_i2c_access_count--; @@ -235,9 +235,9 @@ static void psp_release_i2c_bus(void) /* * Locking methods are based on the default implementation from - * drivers/i2c/i2c-core-base.c, but with psp acquire and release operations + * drivers/i2c/i2c-core-base.c, but with PSP acquire and release operations * added. With this in place we can ensure that i2c clients on the bus shared - * with psp are able to lock HW access to the bus for arbitrary number of + * with PSP are able to lock HW access to the bus for arbitrary number of * operations - that is e.g. write-wait-read. */ static void i2c_adapter_dw_psp_lock_bus(struct i2c_adapter *adapter, diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index 5e28f50e4ce6..91bdedbe1a02 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -127,6 +127,8 @@ static int dw_reg_write_word(void *context, unsigned int reg, unsigned int val) * Autodetects needed register access mode and creates the regmap with * corresponding read/write callbacks. This must be called before doing any * other register access. + * + * Return: 0 on success, or negative errno otherwise. */ int i2c_dw_init_regmap(struct dw_i2c_dev *dev) { @@ -174,7 +176,7 @@ int i2c_dw_init_regmap(struct dw_i2c_dev *dev) /* * Note we'll check the return value of the regmap IO accessors only * at the probe stage. The rest of the code won't do this because - * basically we have MMIO-based regmap so non of the read/write methods + * basically we have MMIO-based regmap, so none of the read/write methods * can fail. */ dev->map = devm_regmap_init(dev->dev, NULL, dev, &map_cfg); @@ -336,7 +338,7 @@ static u32 i2c_dw_acpi_round_bus_speed(struct device *device) acpi_speed = i2c_acpi_find_bus_speed(device); /* - * Some DSTDs use a non standard speed, round down to the lowest + * Some DSDTs use a non standard speed, round down to the lowest * standard speed. */ for (i = 0; i < ARRAY_SIZE(supported_speeds); i++) { @@ -532,7 +534,7 @@ void __i2c_dw_disable(struct dw_i2c_dev *dev) /* * Wait 10 times the signaling period of the highest I2C - * transfer supported by the driver (for 400KHz this is + * transfer supported by the driver (for 400kHz this is * 25us) as described in the DesignWare I2C databook. */ usleep_range(25, 250); diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index 7479cb3a450d..5405d4da2b7d 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -141,10 +141,10 @@ #define DW_IC_SLAVE 1 /* - * Hardware abort codes from the DW_IC_TX_ABRT_SOURCE register + * Hardware abort codes from the DW_IC_TX_ABRT_SOURCE register. * - * Only expected abort codes are listed here - * refer to the datasheet for the full list + * Only expected abort codes are listed here, + * refer to the datasheet for the full list. */ #define ABRT_7B_ADDR_NOACK 0 #define ABRT_10ADDR1_NOACK 1 @@ -201,7 +201,7 @@ struct i2c_dw_semaphore_callbacks; * @rst: optional reset for the controller * @slave: represent an I2C slave device * @get_clk_rate_khz: callback to retrieve IP specific bus speed - * @cmd_err: run time hadware error code + * @cmd_err: run time hardware error code * @msgs: points to an array of messages currently being transferred * @msgs_num: the number of elements in msgs * @msg_write_idx: the element index of the current tx message in the msgs array @@ -236,7 +236,7 @@ struct i2c_dw_semaphore_callbacks; * @release_lock: function to release a hardware lock on the bus * @semaphore_idx: Index of table with semaphore type attached to the bus. It's * -1 if there is no semaphore. - * @shared_with_punit: true if this bus is shared with the SoCs PUNIT + * @shared_with_punit: true if this bus is shared with the SoC's PUNIT * @init: function to initialize the I2C hardware * @set_sda_hold_time: callback to retrieve IP specific SDA hold timing * @mode: operation mode - DW_IC_MASTER or DW_IC_SLAVE diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index bd3c8db521de..4ef4160db01f 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -168,12 +168,14 @@ static int i2c_dw_set_timings_master(struct dw_i2c_dev *dev) } /** - * i2c_dw_init_master() - Initialize the designware I2C master hardware + * i2c_dw_init_master() - Initialize the DesignWare I2C master hardware * @dev: device private data * * This functions configures and enables the I2C master. * This function is called during I2C init function, and in case of timeout at * run time. + * + * Return: 0 on success, or negative errno otherwise. */ static int i2c_dw_init_master(struct dw_i2c_dev *dev) { @@ -314,7 +316,7 @@ static int amd_i2c_dw_xfer_quirk(struct i2c_adapter *adap, struct i2c_msg *msgs, /* * Initiate the i2c read/write transaction of buffer length, * and poll for bus busy status. For the last message transfer, - * update the command with stopbit enable. + * update the command with stop bit enable. */ for (msg_itr_lmt = buf_len; msg_itr_lmt > 0; msg_itr_lmt--) { if (msg_wrt_idx == num_msgs - 1 && msg_itr_lmt == 1) @@ -421,7 +423,7 @@ static int txgbe_i2c_dw_xfer_quirk(struct i2c_adapter *adap, struct i2c_msg *msg /* * Initiate (and continue) low level master read/write transaction. - * This function is only called from i2c_dw_isr, and pumping i2c_msg + * This function is only called from i2c_dw_isr(), and pumping i2c_msg * messages into the tx buffer. Even if the size of i2c_msg data is * longer than the size of the tx buffer, it handles everything. */ @@ -459,7 +461,8 @@ i2c_dw_xfer_msg(struct dw_i2c_dev *dev) buf = msgs[dev->msg_write_idx].buf; buf_len = msgs[dev->msg_write_idx].len; - /* If both IC_EMPTYFIFO_HOLD_MASTER_EN and + /* + * If both IC_EMPTYFIFO_HOLD_MASTER_EN and * IC_RESTART_EN are set, we must manually * set restart bit between messages. */ @@ -949,7 +952,7 @@ static int i2c_dw_init_recovery_info(struct dw_i2c_dev *dev) rinfo->unprepare_recovery = i2c_dw_unprepare_recovery; adap->bus_recovery_info = rinfo; - dev_info(dev->dev, "running with gpio recovery mode! scl%s", + dev_info(dev->dev, "running with GPIO recovery mode! scl%s", rinfo->sda_gpiod ? ",sda" : ""); return 0; @@ -1053,7 +1056,7 @@ int i2c_dw_probe_master(struct dw_i2c_dev *dev) ret = devm_request_irq(dev->dev, dev->irq, i2c_dw_isr, irq_flags, dev_name(dev->dev), dev); if (ret) { - dev_err(dev->dev, "failure requesting irq %i: %d\n", + dev_err(dev->dev, "failure requesting IRQ %i: %d\n", dev->irq, ret); return ret; } diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 02dc1d1001f2..fa9c0c56b11e 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -72,7 +72,7 @@ static int bt1_i2c_write(void *context, unsigned int reg, unsigned int val) return ret; return regmap_write(dev->sysmap, BT1_I2C_CTL, - BT1_I2C_CTL_GO | BT1_I2C_CTL_WR | (reg & BT1_I2C_CTL_ADDR_MASK)); + BT1_I2C_CTL_GO | BT1_I2C_CTL_WR | (reg & BT1_I2C_CTL_ADDR_MASK)); } static struct regmap_config bt1_i2c_cfg = { @@ -304,7 +304,7 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) adap = &dev->adapter; adap->owner = THIS_MODULE; adap->class = dmi_check_system(dw_i2c_hwmon_class_dmi) ? - I2C_CLASS_HWMON : I2C_CLASS_DEPRECATED; + I2C_CLASS_HWMON : I2C_CLASS_DEPRECATED; adap->nr = -1; if (dev->flags & ACCESS_NO_IRQ_SUSPEND) diff --git a/drivers/i2c/busses/i2c-designware-slave.c b/drivers/i2c/busses/i2c-designware-slave.c index 5abd5ec41954..21d80fe81cfe 100644 --- a/drivers/i2c/busses/i2c-designware-slave.c +++ b/drivers/i2c/busses/i2c-designware-slave.c @@ -32,12 +32,14 @@ static void i2c_dw_configure_fifo_slave(struct dw_i2c_dev *dev) } /** - * i2c_dw_init_slave() - Initialize the designware i2c slave hardware + * i2c_dw_init_slave() - Initialize the DesignWare i2c slave hardware * @dev: device private data * * This function configures and enables the I2C in slave mode. * This function is called during I2C init function, and in case of timeout at * run time. + * + * Return: 0 on success, or negative errno otherwise. */ static int i2c_dw_init_slave(struct dw_i2c_dev *dev) { @@ -264,7 +266,7 @@ int i2c_dw_probe_slave(struct dw_i2c_dev *dev) ret = devm_request_irq(dev->dev, dev->irq, i2c_dw_isr_slave, IRQF_SHARED, dev_name(dev->dev), dev); if (ret) { - dev_err(dev->dev, "failure requesting irq %i: %d\n", + dev_err(dev->dev, "failure requesting IRQ %i: %d\n", dev->irq, ret); return ret; }