From patchwork Thu Oct 11 10:26:27 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 982383 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 42W6Zv55Lyz9sj6 for ; Thu, 11 Oct 2018 21:26:47 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728420AbeJKRxS (ORCPT ); Thu, 11 Oct 2018 13:53:18 -0400 Received: from mx1.redhat.com ([209.132.183.28]:34396 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726666AbeJKRxS (ORCPT ); Thu, 11 Oct 2018 13:53:18 -0400 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A7C6EC05D3E5; Thu, 11 Oct 2018 10:26:39 +0000 (UTC) Received: from shalem.localdomain.com (unknown [10.36.118.25]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6DDAE26FDE; Thu, 11 Oct 2018 10:26:37 +0000 (UTC) From: Hans de Goede To: Jarkko Nikula , Wolfram Sang , Andy Shevchenko , Mika Westerberg , Thomas Gleixner , Ingo Molnar , "H . Peter Anvin" Cc: Hans de Goede , linux-i2c@vger.kernel.org, linux-acpi@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 3/3] i2c: designware: Cleanup bus lock handling Date: Thu, 11 Oct 2018 12:26:27 +0200 Message-Id: <20181011102627.7418-4-hdegoede@redhat.com> In-Reply-To: <20181011102627.7418-1-hdegoede@redhat.com> References: <20181011102627.7418-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Thu, 11 Oct 2018 10:26:39 +0000 (UTC) Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Now that most of the special Bay- / Cherry-Trail bus lock handling has been moved to the iosf_mbi code we can simplify the remaining code a bit. Signed-off-by: Hans de Goede --- drivers/i2c/busses/i2c-designware-baytrail.c | 18 ++---------------- drivers/i2c/busses/i2c-designware-common.c | 4 ++-- drivers/i2c/busses/i2c-designware-core.h | 9 ++------- drivers/i2c/busses/i2c-designware-platdrv.c | 2 -- 4 files changed, 6 insertions(+), 27 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-baytrail.c b/drivers/i2c/busses/i2c-designware-baytrail.c index 8c84fa0b0384..33da07d64494 100644 --- a/drivers/i2c/busses/i2c-designware-baytrail.c +++ b/drivers/i2c/busses/i2c-designware-baytrail.c @@ -12,16 +12,6 @@ #include "i2c-designware-core.h" -static int baytrail_i2c_acquire(struct dw_i2c_dev *dev) -{ - return iosf_mbi_block_punit_i2c_access(); -} - -static void baytrail_i2c_release(struct dw_i2c_dev *dev) -{ - iosf_mbi_unblock_punit_i2c_access(); -} - int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev) { acpi_status status; @@ -46,13 +36,9 @@ int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev) return -EPROBE_DEFER; dev_info(dev->dev, "I2C bus managed by PUNIT\n"); - dev->acquire_lock = baytrail_i2c_acquire; - dev->release_lock = baytrail_i2c_release; + dev->acquire_lock = iosf_mbi_block_punit_i2c_access; + dev->release_lock = iosf_mbi_unblock_punit_i2c_access; dev->shared_with_punit = true; return 0; } - -void i2c_dw_remove_lock_support(struct dw_i2c_dev *dev) -{ -} diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index 36271cd75342..a4730111d290 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -269,7 +269,7 @@ int i2c_dw_acquire_lock(struct dw_i2c_dev *dev) if (!dev->acquire_lock) return 0; - ret = dev->acquire_lock(dev); + ret = dev->acquire_lock(); if (!ret) return 0; @@ -281,7 +281,7 @@ int i2c_dw_acquire_lock(struct dw_i2c_dev *dev) void i2c_dw_release_lock(struct dw_i2c_dev *dev) { if (dev->release_lock) - dev->release_lock(dev); + dev->release_lock(); } /* diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index 9ec8394f4787..b4a0b2b99a78 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -10,7 +10,6 @@ */ #include -#include #define DW_IC_DEFAULT_FUNCTIONALITY (I2C_FUNC_I2C | \ I2C_FUNC_SMBUS_BYTE | \ @@ -209,7 +208,6 @@ * @fp_lcnt: fast plus LCNT value * @hs_hcnt: high speed HCNT value * @hs_lcnt: high speed LCNT value - * @pm_qos: pm_qos_request used while holding a hardware lock on the bus * @acquire_lock: function to acquire a hardware lock on the bus * @release_lock: function to release a hardware lock on the bus * @shared_with_punit: true if this bus is shared with the SoCs PUNIT @@ -263,9 +261,8 @@ struct dw_i2c_dev { u16 fp_lcnt; u16 hs_hcnt; u16 hs_lcnt; - struct pm_qos_request pm_qos; - int (*acquire_lock)(struct dw_i2c_dev *dev); - void (*release_lock)(struct dw_i2c_dev *dev); + int (*acquire_lock)(void); + void (*release_lock)(void); bool shared_with_punit; void (*disable)(struct dw_i2c_dev *dev); void (*disable_int)(struct dw_i2c_dev *dev); @@ -322,8 +319,6 @@ static inline int i2c_dw_probe_slave(struct dw_i2c_dev *dev) { return -EINVAL; } #if IS_ENABLED(CONFIG_I2C_DESIGNWARE_BAYTRAIL) extern int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev); -extern void i2c_dw_remove_lock_support(struct dw_i2c_dev *dev); #else static inline int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev) { return 0; } -static inline void i2c_dw_remove_lock_support(struct dw_i2c_dev *dev) {} #endif diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 997bbb3d925f..9eaac3be1f63 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -418,8 +418,6 @@ static int dw_i2c_plat_remove(struct platform_device *pdev) if (!IS_ERR_OR_NULL(dev->rst)) reset_control_assert(dev->rst); - i2c_dw_remove_lock_support(dev); - return 0; }