From patchwork Fri Oct 8 16:35:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 1538465 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=cBcp12Su; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=oLcZbuWl; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HQv3B59FMz9sP7 for ; Sat, 9 Oct 2021 03:36:38 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HQv372m0jz3081 for ; Sat, 9 Oct 2021 03:36:35 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=cBcp12Su; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=oLcZbuWl; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=svenpeter.dev (client-ip=66.111.4.224; helo=new2-smtp.messagingengine.com; envelope-from=sven@svenpeter.dev; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=cBcp12Su; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=oLcZbuWl; dkim-atps=neutral Received: from new2-smtp.messagingengine.com (new2-smtp.messagingengine.com [66.111.4.224]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HQv2q3MxBz2yNZ for ; Sat, 9 Oct 2021 03:36:19 +1100 (AEDT) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailnew.nyi.internal (Postfix) with ESMTP id 6A26A580FF2; Fri, 8 Oct 2021 12:36:17 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute1.internal (MEProxy); Fri, 08 Oct 2021 12:36:17 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=gDYXv/fFdnWqv tr1uvd+CSFoRdT7CSrilcDcl3UTHuQ=; b=cBcp12SubnOlXqasSnxaobasEiOwF mSjVU2l40AdmXOu5HTu8mHWmb3xY01sIBp5W94Mr/JZB7w4lhmOGNFaRUCVlJdU4 sfkt/cpJ/q20log4d5lZLjh0hstQ8Ern5hI69vC34HLY1u5cuwmXhDyoihp8rd8i 3XxM/jW/ESQonp3j6JyPyQZPJHdODON3lp0KaP3ohc3ME5uIz+AvwLvNInq1Tssd 29YOuzAd2xwKBj0eRrWz1cCqJ/s9szeYytGIdGlhpVdP72+cHfroBz8muZtKURl2 29Ib2VVw+ezOTtfdc2V1zxlpTPWdUGL3W0TguUQA66zd19RgMqfcy4jrg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=gDYXv/fFdnWqvtr1uvd+CSFoRdT7CSrilcDcl3UTHuQ=; b=oLcZbuWl WKf8fLTS1YJZhD52MysFL91NDHh7lH5QSE+c9ZPqiVE2168GQnWLKSXgh7AW4hpj FX1swTpZaPO+i9eZqaPNE6pTfNnFlVMiDUCaDygJ+xZsAjC3WP4Cn+A4F4V/jx5S PJakhLLB+4+jiv2jOeAHSltcZ6hh0Gx7GpyRnCHKQ+rSxLuk3o62kfraZWlTqNtp EH6frBbgN7NYr4HqywY6YOuPAEYygrdVKfw9cD2Ffcmu8FEM4HszJ6A2Gfh+AXEO uJ5aZx2Q1WWjbPqXdF3mhnkOupQCaFKuvtlXHbL7bXWGHWzzUCC1skS/mJioytxq WiKZvIcsFieJNg== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrvddttddguddttdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufhvvghn ucfrvghtvghruceoshhvvghnsehsvhgvnhhpvghtvghrrdguvghvqeenucggtffrrghtth gvrhhnpeeivdduffetvdeiveeiffdvjeevieevudfhieefgeehheehtdfgheffueehfefh leenucffohhmrghinhepuggvvhhitggvthhrvggvrdhorhhgpdhgihhthhhusgdrtghomh dpohhfthgtrdhnvghtnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghi lhhfrhhomhepshhvvghnsehsvhgvnhhpvghtvghrrdguvghv X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 8 Oct 2021 12:36:13 -0400 (EDT) From: Sven Peter To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Olof Johansson , Christian Zigotzky , Wolfram Sang , Rob Herring Subject: [PATCH v2 01/11] dt-bindings: i2c: Add Apple I2C controller bindings Date: Fri, 8 Oct 2021 18:35:22 +0200 Message-Id: <20211008163532.75569-2-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20211008163532.75569-1-sven@svenpeter.dev> References: <20211008163532.75569-1-sven@svenpeter.dev> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Arnd Bergmann , Sven Peter , Hector Martin , linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mohamed Mediouni , Stan Skowronek , linuxppc-dev@lists.ozlabs.org, Rob Herring , Alyssa Rosenzweig , Mark Kettenis Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" The Apple I2C controller is based on the PASemi I2C controller. It is present on Apple SoCs such as the M1. Reviewed-by: Arnd Bergmann Reviewed-by: Rob Herring Signed-off-by: Sven Peter --- v1 -> v2: no changes .../devicetree/bindings/i2c/apple,i2c.yaml | 61 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 62 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/apple,i2c.yaml diff --git a/Documentation/devicetree/bindings/i2c/apple,i2c.yaml b/Documentation/devicetree/bindings/i2c/apple,i2c.yaml new file mode 100644 index 000000000000..22fc8483256f --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/apple,i2c.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/i2c/apple,i2c.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Apple/PASemi I2C controller + +maintainers: + - Sven Peter + +description: | + Apple SoCs such as the M1 come with a I2C controller based on the one found + in machines with P. A. Semi's PWRficient processors. + The bus is used to communicate with e.g. USB PD chips or the speaker + amp. + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +properties: + compatible: + enum: + - apple,t8103-i2c + - apple,i2c + + reg: + maxItems: 1 + + clocks: + items: + - description: I2C bus reference clock + + interrupts: + maxItems: 1 + + clock-frequency: + description: | + Desired I2C bus clock frequency in Hz. If not specified, 100 kHz will be + used. This frequency is generated by dividing the reference clock. + Allowed values are between ref_clk/(16*4) and ref_clk/(16*255). + +required: + - compatible + - reg + - clocks + - interrupts + +unevaluatedProperties: false + +examples: + - | + i2c@35010000 { + compatible = "apple,t8103-i2c"; + reg = <0x35010000 0x4000>; + interrupt-parent = <&aic>; + interrupts = <0 627 4>; + clocks = <&ref_clk>; + #address-cells = <1>; + #size-cells = <0>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 7cfd63ce7122..74aa85967ca3 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1735,6 +1735,7 @@ B: https://github.com/AsahiLinux/linux/issues C: irc://irc.oftc.net/asahi-dev T: git https://github.com/AsahiLinux/linux.git F: Documentation/devicetree/bindings/arm/apple.yaml +F: Documentation/devicetree/bindings/i2c/apple,i2c.yaml F: Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml F: Documentation/devicetree/bindings/pci/apple,pcie.yaml F: Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml From patchwork Fri Oct 8 16:35:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 1538474 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=RmuEne/F; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=H/rd2lmy; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=112.213.38.117; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HQv4d2yRDz9sP7 for ; Sat, 9 Oct 2021 03:37:53 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HQv4c54Ymz3cB0 for ; Sat, 9 Oct 2021 03:37:52 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=RmuEne/F; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=H/rd2lmy; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=svenpeter.dev (client-ip=66.111.4.224; helo=new2-smtp.messagingengine.com; envelope-from=sven@svenpeter.dev; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=RmuEne/F; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=H/rd2lmy; dkim-atps=neutral Received: from new2-smtp.messagingengine.com (new2-smtp.messagingengine.com [66.111.4.224]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HQv2t1MW8z2yN4 for ; Sat, 9 Oct 2021 03:36:22 +1100 (AEDT) Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailnew.nyi.internal (Postfix) with ESMTP id 22692581009; Fri, 8 Oct 2021 12:36:20 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute6.internal (MEProxy); Fri, 08 Oct 2021 12:36:20 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=3gVs60z+GZXZn xMyWBUAI98Vy1vUJV8dXTwiEbS9uIY=; b=RmuEne/F7tjZzGUT07pkBKHFK+fpy 1rYBUjpzvmXxhNlBOZFnET+UqwezORS9olGwXcJb3C8LNtbF5oxih77H0gmEbMyD 1luNlUbYVlxHmELdINlNjrFr18jFaIpYl3l3yL18sM1tbKpOzZ5UhkCjgbjcFxEr WxqwtEs3Arp3uIcC1cvn/+uMS+QtiNLLdrTru1DxREAcp+KGlL6ESwqSeFnDBc7j ZFdT/25Bso7VKm3SZKoZOUWTl2Dy0o3IBi2EG2KQzZvb35Dy+dRigcZZvoVLVgS8 7mCFOS0Bd79lmCfLhi4d6HdpmjQcU6+5pP7xzKh/zxe4ibbfJ61D55UGQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=3gVs60z+GZXZnxMyWBUAI98Vy1vUJV8dXTwiEbS9uIY=; b=H/rd2lmy /MZXkXI0uPT9k8Jzu0qZ0lW3aFVBcGdrtY+sN7jZOzETg03URd6Ndldgv6v9YjkO yiYv1xLDLTxHCX44bjEQn6kw8mfPo35fLzbpyU9Ks6h1+PBQbjn6jmo63LSJFmoQ VW/XFvhsoo56RDuyHODkf9VoTeP72X/jf2o9/3YayamhNUW2Fst1m2+4rBGL6KAV eSVspKcgHrHPQeRhORSAitRgp1R1xw62t0o5zCi3m+9AALbyWWI4ehCLk7usBrqe byYv+eiWBiLecAL8f+d1Okf0D303+XE8eRtGwSYNMbTuV8WhdALjlGQPF06b2DAt peQ58/MvDGoUYg== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrvddttddguddttdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufhvvghn ucfrvghtvghruceoshhvvghnsehsvhgvnhhpvghtvghrrdguvghvqeenucggtffrrghtth gvrhhnpeetvdekteeluefffffhkeetteffgefggfevheeileeufedvtdeuffevveelhfef jeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehsvh gvnhesshhvvghnphgvthgvrhdruggvvh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 8 Oct 2021 12:36:17 -0400 (EDT) From: Sven Peter To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Olof Johansson , Christian Zigotzky , Wolfram Sang Subject: [PATCH v2 02/11] i2c: pasemi: Use io{read,write}32 Date: Fri, 8 Oct 2021 18:35:23 +0200 Message-Id: <20211008163532.75569-3-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20211008163532.75569-1-sven@svenpeter.dev> References: <20211008163532.75569-1-sven@svenpeter.dev> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnd Bergmann , Sven Peter , Hector Martin , linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mohamed Mediouni , Stan Skowronek , linuxppc-dev@lists.ozlabs.org, Alyssa Rosenzweig , Mark Kettenis Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" In preparation for splitting this driver up into a platform_driver and a pci_driver, replace outl/inl usage with pci_iomap and ioread32/iowrite32. Reviewed-by: Arnd Bergmann Signed-off-by: Sven Peter --- v1 -> v2: replaced ioport_map with pci_iomap drivers/i2c/busses/i2c-pasemi.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi.c index 20f2772c0e79..39fcc584264a 100644 --- a/drivers/i2c/busses/i2c-pasemi.c +++ b/drivers/i2c/busses/i2c-pasemi.c @@ -20,6 +20,7 @@ static struct pci_driver pasemi_smb_driver; struct pasemi_smbus { struct pci_dev *dev; struct i2c_adapter adapter; + void __iomem *ioaddr; unsigned long base; int size; }; @@ -53,13 +54,13 @@ static inline void reg_write(struct pasemi_smbus *smbus, int reg, int val) { dev_dbg(&smbus->dev->dev, "smbus write reg %lx val %08x\n", smbus->base + reg, val); - outl(val, smbus->base + reg); + iowrite32(val, smbus->ioaddr + reg); } static inline int reg_read(struct pasemi_smbus *smbus, int reg) { int ret; - ret = inl(smbus->base + reg); + ret = ioread32(smbus->ioaddr + reg); dev_dbg(&smbus->dev->dev, "smbus read reg %lx val %08x\n", smbus->base + reg, ret); return ret; @@ -351,6 +352,12 @@ static int pasemi_smb_probe(struct pci_dev *dev, goto out_kfree; } + smbus->ioaddr = pci_iomap(dev, 0, 0); + if (!smbus->ioaddr) { + error = -EBUSY; + goto out_release_region; + } + smbus->adapter.owner = THIS_MODULE; snprintf(smbus->adapter.name, sizeof(smbus->adapter.name), "PA Semi SMBus adapter at 0x%lx", smbus->base); @@ -366,12 +373,14 @@ static int pasemi_smb_probe(struct pci_dev *dev, error = i2c_add_adapter(&smbus->adapter); if (error) - goto out_release_region; + goto out_ioport_unmap; pci_set_drvdata(dev, smbus); return 0; + out_ioport_unmap: + pci_iounmap(dev, smbus->ioaddr); out_release_region: release_region(smbus->base, smbus->size); out_kfree: @@ -384,6 +393,7 @@ static void pasemi_smb_remove(struct pci_dev *dev) struct pasemi_smbus *smbus = pci_get_drvdata(dev); i2c_del_adapter(&smbus->adapter); + pci_iounmap(dev, smbus->ioaddr); release_region(smbus->base, smbus->size); kfree(smbus); } From patchwork Fri Oct 8 16:35:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 1538475 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=YxUro9pL; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=isQ9Mikc; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HQv5M27Ncz9sRN for ; Sat, 9 Oct 2021 03:38:31 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HQv5M0hRlz3cFL for ; Sat, 9 Oct 2021 03:38:31 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=YxUro9pL; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=isQ9Mikc; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=svenpeter.dev (client-ip=66.111.4.224; helo=new2-smtp.messagingengine.com; envelope-from=sven@svenpeter.dev; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=YxUro9pL; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=isQ9Mikc; dkim-atps=neutral Received: from new2-smtp.messagingengine.com (new2-smtp.messagingengine.com [66.111.4.224]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HQv2w3cNlz2yN4 for ; Sat, 9 Oct 2021 03:36:24 +1100 (AEDT) Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailnew.nyi.internal (Postfix) with ESMTP id 9402558100D; Fri, 8 Oct 2021 12:36:22 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute6.internal (MEProxy); Fri, 08 Oct 2021 12:36:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=OwK3RC4fOqjWl Xm4xt1aFkIyNma6xZxflBeyzs+OyHE=; b=YxUro9pLt/5PdYubed1b7e1a4icQn 31MZZmP65fRAl/NEGYKaq3cyczEc+SMI9r3maOP5KzJgZHUtckufGt3vbkbkfFo2 hwDNxwacOxqKHDZSyvCk2EVd7dj1lhjEylEU/NPe+Fui9LuGqg+0lrCA8Afy213B 5mDZloDkGDaL1gCUHq62XI0ARbBJ6ceH1l7p6em5RzNUBVIGY0fOr/dzIJFXsgCK lGC3Rjl7bEqQpnfqILgKxA2cPfu3UwTUy4+L7Md6sNwCjamaG9WySkHZEyx/kFvF zak+9mFUfcQiwagdZTAhoZGq6rW81NGT2xRzv6hkD3R2UWCmWfCuXFe2Q== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=OwK3RC4fOqjWlXm4xt1aFkIyNma6xZxflBeyzs+OyHE=; b=isQ9Mikc 88/0MkVdkdB2pAeNOnd6KmmTMtbrv5iOI8Jfvj4VmJjGVNN/4mFaN6lJxxJYIMyL mUDW940vexg0qangYP0wZd7EYAaP6FqHpc1ApgzfUt60IF5eiW9vYUtyFNgaa2bq 9Dmpl1/Ghs01quKtx7P2UxKN3k+F51zJnEe+T6pcRWjcX3Y44NaSbQFf7Mtz6n3B uEZPZdM31OGlh7HT+gZ+GAUP95Lo2zcN6FHlGQxcSHjDNNo4Xzx62cJCXyrrajoM RBG1W/DdAUIuKIgOmHaQG/0brBpuC5GQTwdE55O/ZXSFEAYBqjARJlZudKB+LFPH EVFHYPhDVH1FUw== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrvddttddguddttdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufhvvghn ucfrvghtvghruceoshhvvghnsehsvhgvnhhpvghtvghrrdguvghvqeenucggtffrrghtth gvrhhnpeetvdekteeluefffffhkeetteffgefggfevheeileeufedvtdeuffevveelhfef jeenucevlhhushhtvghrufhiiigvpedunecurfgrrhgrmhepmhgrihhlfhhrohhmpehsvh gvnhesshhvvghnphgvthgvrhdruggvvh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 8 Oct 2021 12:36:20 -0400 (EDT) From: Sven Peter To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Olof Johansson , Christian Zigotzky , Wolfram Sang Subject: [PATCH v2 03/11] i2c: pasemi: Use dev_name instead of port number Date: Fri, 8 Oct 2021 18:35:24 +0200 Message-Id: <20211008163532.75569-4-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20211008163532.75569-1-sven@svenpeter.dev> References: <20211008163532.75569-1-sven@svenpeter.dev> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnd Bergmann , Sven Peter , Hector Martin , linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mohamed Mediouni , Stan Skowronek , linuxppc-dev@lists.ozlabs.org, Alyssa Rosenzweig , Mark Kettenis Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Right now the i2c adapter name includes the port number which can indirectly be used to identify the device. Replace that with dev_name to directly identify the device and to also allow this to work correctly once we add platform support. Signed-off-by: Sven Peter --- v1 -> v2: new commit drivers/i2c/busses/i2c-pasemi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi.c index 39fcc584264a..ca5a86cf53f1 100644 --- a/drivers/i2c/busses/i2c-pasemi.c +++ b/drivers/i2c/busses/i2c-pasemi.c @@ -360,7 +360,7 @@ static int pasemi_smb_probe(struct pci_dev *dev, smbus->adapter.owner = THIS_MODULE; snprintf(smbus->adapter.name, sizeof(smbus->adapter.name), - "PA Semi SMBus adapter at 0x%lx", smbus->base); + "PA Semi SMBus adapter (%s)", dev_name(smbus->dev)); smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD; smbus->adapter.algo = &smbus_algorithm; smbus->adapter.algo_data = smbus; From patchwork Fri Oct 8 16:35:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 1538476 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=QvPZ9kFU; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=C21NNuGW; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=112.213.38.117; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HQv6H0yLNz9sP7 for ; Sat, 9 Oct 2021 03:39:18 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HQv6G52Ygz3cNZ for ; Sat, 9 Oct 2021 03:39:18 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=QvPZ9kFU; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=C21NNuGW; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=svenpeter.dev (client-ip=66.111.4.224; helo=new2-smtp.messagingengine.com; envelope-from=sven@svenpeter.dev; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=QvPZ9kFU; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=C21NNuGW; dkim-atps=neutral Received: from new2-smtp.messagingengine.com (new2-smtp.messagingengine.com [66.111.4.224]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HQv2z3vtSz2ywg for ; Sat, 9 Oct 2021 03:36:27 +1100 (AEDT) Received: from compute2.internal (compute2.nyi.internal [10.202.2.42]) by mailnew.nyi.internal (Postfix) with ESMTP id 9F525580FF3; Fri, 8 Oct 2021 12:36:25 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute2.internal (MEProxy); Fri, 08 Oct 2021 12:36:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=fr6ByaE9Vg0E3 Hjmq3os9yydpuvF8PLVujJlpVytji8=; b=QvPZ9kFUqLD2gOtUiSCrVo8UoSRh9 SN9jBtRJl45cFujqA5nxD0AowPEFieJdzXEKFHGhg5emXZUN3P0WmlVMJkeqreIf w/9ZPFjamFDoVE86yN2VarcTt28aCIxkoPJoUMnENf7JzqAjC8lClwhe0Cu/8rc/ dKAP44ph34NHuxd5b1DDxagLehQaRFTqToIplATROrKQ59pG6HUjnYZWc0/zm0j2 AMqnyPzpKcWqbtvk9OkW+Dr0niSY/f8sKYgnjzei8WmKrmJNFWl2fnUMz41CJAC4 XMCycyJpwmq3Gq6qZZDGEw5eESXxVADGZQsYel09rRVoepMg6LB9x+9RQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=fr6ByaE9Vg0E3Hjmq3os9yydpuvF8PLVujJlpVytji8=; b=C21NNuGW eJ4JfSPezr7JVeTopivj+JKLYNkjciYwopmMR1F36nN7wPJ/aUOTr0vN7LWAtYEn 4Fw3TJB8qa2ITfVxNrknSNc3EAd0EbAqX9MacHuy3mNRRvQQrSwLTcAISjsxVnR8 l72KMat/efHuyJ2dKUgsmqlTFULB3f8MNNdjFNVVz3Hw2vlHDRC5BMhQDv7Gt0WO +Kj3opwJXlle1I+p6lNDUXcVVFe+Yd2dnIODcsxMqc6JjD2yiWYJXv03bWsdfpyY 17bLokQ976il4qspCHAG40ReX4gFv6gH+7yKbUuHU/TVtkrstDfsDf5iHBnHfDDc xd1Ko7fOFLRS6Q== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrvddttddgleelucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvufffkffojghfggfgsedtkeertdertddtnecuhfhrohhmpefuvhgvnhcu rfgvthgvrhcuoehsvhgvnhesshhvvghnphgvthgvrhdruggvvheqnecuggftrfgrthhtvg hrnheptedvkeetleeuffffhfekteetffeggffgveehieelueefvddtueffveevlefhfeej necuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepshhvvg hnsehsvhgvnhhpvghtvghrrdguvghv X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 8 Oct 2021 12:36:22 -0400 (EDT) From: Sven Peter To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Olof Johansson , Christian Zigotzky , Wolfram Sang Subject: [PATCH v2 04/11] i2c: pasemi: Remove usage of pci_dev Date: Fri, 8 Oct 2021 18:35:25 +0200 Message-Id: <20211008163532.75569-5-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20211008163532.75569-1-sven@svenpeter.dev> References: <20211008163532.75569-1-sven@svenpeter.dev> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnd Bergmann , Sven Peter , Hector Martin , linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mohamed Mediouni , Stan Skowronek , linuxppc-dev@lists.ozlabs.org, Alyssa Rosenzweig , Mark Kettenis Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Prepare to create a platform driver by removing all usages of pci_dev we can. Reviewed-by: Arnd Bergmann Signed-off-by: Sven Peter --- v1 -> v2: no changes drivers/i2c/busses/i2c-pasemi.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi.c index ca5a86cf53f1..a018e9376023 100644 --- a/drivers/i2c/busses/i2c-pasemi.c +++ b/drivers/i2c/busses/i2c-pasemi.c @@ -18,7 +18,7 @@ static struct pci_driver pasemi_smb_driver; struct pasemi_smbus { - struct pci_dev *dev; + struct device *dev; struct i2c_adapter adapter; void __iomem *ioaddr; unsigned long base; @@ -52,7 +52,7 @@ struct pasemi_smbus { static inline void reg_write(struct pasemi_smbus *smbus, int reg, int val) { - dev_dbg(&smbus->dev->dev, "smbus write reg %lx val %08x\n", + dev_dbg(smbus->dev, "smbus write reg %lx val %08x\n", smbus->base + reg, val); iowrite32(val, smbus->ioaddr + reg); } @@ -61,7 +61,7 @@ static inline int reg_read(struct pasemi_smbus *smbus, int reg) { int ret; ret = ioread32(smbus->ioaddr + reg); - dev_dbg(&smbus->dev->dev, "smbus read reg %lx val %08x\n", + dev_dbg(smbus->dev, "smbus read reg %lx val %08x\n", smbus->base + reg, ret); return ret; } @@ -94,7 +94,7 @@ static int pasemi_smb_waitready(struct pasemi_smbus *smbus) return -ENXIO; if (timeout < 0) { - dev_warn(&smbus->dev->dev, "Timeout, status 0x%08x\n", status); + dev_warn(smbus->dev, "Timeout, status 0x%08x\n", status); reg_write(smbus, REG_SMSTA, status); return -ETIME; } @@ -342,7 +342,7 @@ static int pasemi_smb_probe(struct pci_dev *dev, if (!smbus) return -ENOMEM; - smbus->dev = dev; + smbus->dev = &dev->dev; smbus->base = pci_resource_start(dev, 0); smbus->size = pci_resource_len(dev, 0); @@ -366,7 +366,7 @@ static int pasemi_smb_probe(struct pci_dev *dev, smbus->adapter.algo_data = smbus; /* set up the sysfs linkage to our parent device */ - smbus->adapter.dev.parent = &dev->dev; + smbus->adapter.dev.parent = smbus->dev; reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR | (CLK_100K_DIV & CTL_CLK_M))); From patchwork Fri Oct 8 16:35:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 1538477 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=g/mGXOsN; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=a2QlUY+z; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HQv7223Knz9sP7 for ; Sat, 9 Oct 2021 03:39:58 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HQv721Bgrz301s for ; Sat, 9 Oct 2021 03:39:58 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=g/mGXOsN; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=a2QlUY+z; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=svenpeter.dev (client-ip=66.111.4.224; helo=new2-smtp.messagingengine.com; envelope-from=sven@svenpeter.dev; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=g/mGXOsN; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=a2QlUY+z; dkim-atps=neutral Received: from new2-smtp.messagingengine.com (new2-smtp.messagingengine.com [66.111.4.224]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HQv320hP9z308v for ; Sat, 9 Oct 2021 03:36:30 +1100 (AEDT) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailnew.nyi.internal (Postfix) with ESMTP id 3295658100F; Fri, 8 Oct 2021 12:36:28 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Fri, 08 Oct 2021 12:36:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=/S0U916Xy3glZ 0Q5IEN1sZKwKLqmq+2EH0xdy9c4VPo=; b=g/mGXOsNNPSkcKLg3fxV18wZEifDg 6tW0WCcZ57MK/SfsQL1tFxESrNE/xMfGmKKkDsYF5NSoVfk8DUymIlhtoWATrkvk hQLr2MGP4POoyNy9+7vrCKYcnA1gEgSVAsu0LvpnTHjMCZdatnQIF/eGwwitv3Ny vBFBU9Al0R2Xrj7V6gGl+xYMK6WuGkKxFHEPvfRUaZiowkBBWd4GGlVXEFMTSQRj NLmMxVPgvduIhkVrQisIae3UqoKmMuBlDFNJWyS9L2yXo1KSs0mprCcsCQ2iZz8z ksI9kuyE9FZaoZjCD1xT25cwvZbNE3TJMzTGtfGhqk6tMxsMDm+IOXZNw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=/S0U916Xy3glZ0Q5IEN1sZKwKLqmq+2EH0xdy9c4VPo=; b=a2QlUY+z PByvQYOIlM16mP2IaM4qD+kKdJiAjPxqL8zOGZOvOMXGCURQi+WZg7SOfDJ1v3+e 9yiuEwoFJrEuxEF6tGPflrzO/TMgoZR8w+RtrFQisTeVAYzqbmsurG5K4kE7zULe kynkchKjONg3AdNa/nuWb+Iw1eGSvfjjdapdxS5FHZU1a8fFo2cDRO/ubQyb7F5b P5D4SEbb9qeYGqLsHXQ7TAgpMStnT/eftgrrFkyW+Jv9nq4PQQBgMrSTgLYTe6UZ szL8vDS19PdfNrXLESTGRmZm63EUiprZKm+WVv30/mpHlCq3RotheiCBcclTcoSx tI1YdbakqWbOdQ== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrvddttddguddttdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufhvvghn ucfrvghtvghruceoshhvvghnsehsvhgvnhhpvghtvghrrdguvghvqeenucggtffrrghtth gvrhhnpeetvdekteeluefffffhkeetteffgefggfevheeileeufedvtdeuffevveelhfef jeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehsvh gvnhesshhvvghnphgvthgvrhdruggvvh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 8 Oct 2021 12:36:25 -0400 (EDT) From: Sven Peter To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Olof Johansson , Christian Zigotzky , Wolfram Sang Subject: [PATCH v2 05/11] i2c: pasemi: Split off common probing code Date: Fri, 8 Oct 2021 18:35:26 +0200 Message-Id: <20211008163532.75569-6-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20211008163532.75569-1-sven@svenpeter.dev> References: <20211008163532.75569-1-sven@svenpeter.dev> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnd Bergmann , Sven Peter , Hector Martin , linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mohamed Mediouni , Stan Skowronek , linuxppc-dev@lists.ozlabs.org, Alyssa Rosenzweig , Mark Kettenis Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Split off common probing code that will be used by both the PCI and the platform device. Reviewed-by: Arnd Bergmann Signed-off-by: Sven Peter --- v1 -> v2: no changes drivers/i2c/busses/i2c-pasemi.c | 39 +++++++++++++++++++++------------ 1 file changed, 25 insertions(+), 14 deletions(-) diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi.c index a018e9376023..baf338149673 100644 --- a/drivers/i2c/busses/i2c-pasemi.c +++ b/drivers/i2c/busses/i2c-pasemi.c @@ -329,6 +329,30 @@ static const struct i2c_algorithm smbus_algorithm = { .functionality = pasemi_smb_func, }; +static int pasemi_i2c_common_probe(struct pasemi_smbus *smbus) +{ + int error; + + smbus->adapter.owner = THIS_MODULE; + snprintf(smbus->adapter.name, sizeof(smbus->adapter.name), + "PA Semi SMBus adapter (%s)", dev_name(smbus->dev)); + smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD; + smbus->adapter.algo = &smbus_algorithm; + smbus->adapter.algo_data = smbus; + + /* set up the sysfs linkage to our parent device */ + smbus->adapter.dev.parent = smbus->dev; + + reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR | + (CLK_100K_DIV & CTL_CLK_M))); + + error = i2c_add_adapter(&smbus->adapter); + if (error) + return error; + + return 0; +} + static int pasemi_smb_probe(struct pci_dev *dev, const struct pci_device_id *id) { @@ -358,20 +382,7 @@ static int pasemi_smb_probe(struct pci_dev *dev, goto out_release_region; } - smbus->adapter.owner = THIS_MODULE; - snprintf(smbus->adapter.name, sizeof(smbus->adapter.name), - "PA Semi SMBus adapter (%s)", dev_name(smbus->dev)); - smbus->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD; - smbus->adapter.algo = &smbus_algorithm; - smbus->adapter.algo_data = smbus; - - /* set up the sysfs linkage to our parent device */ - smbus->adapter.dev.parent = smbus->dev; - - reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR | - (CLK_100K_DIV & CTL_CLK_M))); - - error = i2c_add_adapter(&smbus->adapter); + int error = pasemi_i2c_common_probe(smbus); if (error) goto out_ioport_unmap; From patchwork Fri Oct 8 16:35:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 1538478 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=lMd+AC6b; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=lWjI/0N/; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HQv7v6v49z9sP7 for ; Sat, 9 Oct 2021 03:40:43 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HQv7v65sXz3c7l for ; Sat, 9 Oct 2021 03:40:43 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=lMd+AC6b; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=lWjI/0N/; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=svenpeter.dev (client-ip=66.111.4.224; helo=new2-smtp.messagingengine.com; envelope-from=sven@svenpeter.dev; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=lMd+AC6b; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=lWjI/0N/; dkim-atps=neutral Received: from new2-smtp.messagingengine.com (new2-smtp.messagingengine.com [66.111.4.224]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HQv365cj7z3bP6 for ; Sat, 9 Oct 2021 03:36:34 +1100 (AEDT) Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailnew.nyi.internal (Postfix) with ESMTP id DADCF581011; Fri, 8 Oct 2021 12:36:32 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute6.internal (MEProxy); Fri, 08 Oct 2021 12:36:32 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=Hd9JVOR2fA8Cb BVqM5ZRD7ZkZFb/IvxEfGJqA+awhtc=; b=lMd+AC6b5ACahKuJ05ooQ6LpCVI6t ldgzUNUIVWm2fUlkXfQDTZKJ7F8hkBubbTEuEWwRDUheUridLbztr+3EA+iPEtCR yR0r3ZXi1QZ3osFaIga3vXWOudtuaftekX19JcvPcfAF93gXze0kkVibrdAJ04Ky kF0SHoKqtmeedFhhyoHszebYjYmcalUhRlkVlpQvudQpN1cz+SxY2n1eH4/UFt9F nCbnzf90hDnRnyLrSlFqnfd8zwa9srWFulUvnCuatNIpmTg0EjWDeMaBSM3ElIoc UIs3u4uj41aL6fIqCWE157ISDmJL0nAJWBeS8j93hJxD6edI+hAxhRVWg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=Hd9JVOR2fA8CbBVqM5ZRD7ZkZFb/IvxEfGJqA+awhtc=; b=lWjI/0N/ IGFwi8MmvynPI9dieJAPpX+krpphYLXMpT0IB18rMo0E7xZdQSiDXCRChGGDsTC1 uiRXl8OBzIE8/awYBLcQftiduqOSMbyM+9XXsluqvUxHtOulkHQo1yBx3yP7EaZz 1dYNVuwmjWkvD8fqCHtbbj3FmeI/m2yNzhkwq8wh6fC7yQEhnprRs4+K61BfwhsW lT2590rzeP44Z778bneIFrCTACBs86ZpRSOJ6YmsCyxcwDHD1TUzsWWtvdTX8CV/ fWQKUt1InNyvPKhipzRYTk7tg/lmZL74GFQxNWG9EwdwTwarob67WG4K7pIC+LAx i1NQgOVYE3QimQ== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrvddttddguddttdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufhvvghn ucfrvghtvghruceoshhvvghnsehsvhgvnhhpvghtvghrrdguvghvqeenucggtffrrghtth gvrhhnpeetvdekteeluefffffhkeetteffgefggfevheeileeufedvtdeuffevveelhfef jeenucevlhhushhtvghrufhiiigvpedvnecurfgrrhgrmhepmhgrihhlfhhrohhmpehsvh gvnhesshhvvghnphgvthgvrhdruggvvh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 8 Oct 2021 12:36:28 -0400 (EDT) From: Sven Peter To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Olof Johansson , Christian Zigotzky , Wolfram Sang Subject: [PATCH v2 06/11] i2c: pasemi: Split pci driver to its own file Date: Fri, 8 Oct 2021 18:35:27 +0200 Message-Id: <20211008163532.75569-7-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20211008163532.75569-1-sven@svenpeter.dev> References: <20211008163532.75569-1-sven@svenpeter.dev> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnd Bergmann , Sven Peter , Hector Martin , linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mohamed Mediouni , Stan Skowronek , linuxppc-dev@lists.ozlabs.org, Alyssa Rosenzweig , Mark Kettenis Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Split off the PCI driver so that we can reuse common code for the platform driver. Reviewed-by: Arnd Bergmann Signed-off-by: Sven Peter --- v1 -> v2: no changes drivers/i2c/busses/Makefile | 1 + .../{i2c-pasemi.c => i2c-pasemi-core.c} | 88 +---------------- drivers/i2c/busses/i2c-pasemi-core.h | 19 ++++ drivers/i2c/busses/i2c-pasemi-pci.c | 96 +++++++++++++++++++ 4 files changed, 118 insertions(+), 86 deletions(-) rename drivers/i2c/busses/{i2c-pasemi.c => i2c-pasemi-core.c} (81%) create mode 100644 drivers/i2c/busses/i2c-pasemi-core.h create mode 100644 drivers/i2c/busses/i2c-pasemi-pci.c diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile index 1336b04f40e2..0ab1b4cb2228 100644 --- a/drivers/i2c/busses/Makefile +++ b/drivers/i2c/busses/Makefile @@ -84,6 +84,7 @@ obj-$(CONFIG_I2C_NPCM7XX) += i2c-npcm7xx.o obj-$(CONFIG_I2C_OCORES) += i2c-ocores.o obj-$(CONFIG_I2C_OMAP) += i2c-omap.o obj-$(CONFIG_I2C_OWL) += i2c-owl.o +i2c-pasemi-objs := i2c-pasemi-core.o i2c-pasemi-pci.o obj-$(CONFIG_I2C_PASEMI) += i2c-pasemi.o obj-$(CONFIG_I2C_PCA_PLATFORM) += i2c-pca-platform.o obj-$(CONFIG_I2C_PNX) += i2c-pnx.o diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi-core.c similarity index 81% rename from drivers/i2c/busses/i2c-pasemi.c rename to drivers/i2c/busses/i2c-pasemi-core.c index baf338149673..d1cab11a4d50 100644 --- a/drivers/i2c/busses/i2c-pasemi.c +++ b/drivers/i2c/busses/i2c-pasemi-core.c @@ -15,15 +15,7 @@ #include #include -static struct pci_driver pasemi_smb_driver; - -struct pasemi_smbus { - struct device *dev; - struct i2c_adapter adapter; - void __iomem *ioaddr; - unsigned long base; - int size; -}; +#include "i2c-pasemi-core.h" /* Register offsets */ #define REG_MTXFIFO 0x00 @@ -329,7 +321,7 @@ static const struct i2c_algorithm smbus_algorithm = { .functionality = pasemi_smb_func, }; -static int pasemi_i2c_common_probe(struct pasemi_smbus *smbus) +int pasemi_i2c_common_probe(struct pasemi_smbus *smbus) { int error; @@ -352,79 +344,3 @@ static int pasemi_i2c_common_probe(struct pasemi_smbus *smbus) return 0; } - -static int pasemi_smb_probe(struct pci_dev *dev, - const struct pci_device_id *id) -{ - struct pasemi_smbus *smbus; - int error; - - if (!(pci_resource_flags(dev, 0) & IORESOURCE_IO)) - return -ENODEV; - - smbus = kzalloc(sizeof(struct pasemi_smbus), GFP_KERNEL); - if (!smbus) - return -ENOMEM; - - smbus->dev = &dev->dev; - smbus->base = pci_resource_start(dev, 0); - smbus->size = pci_resource_len(dev, 0); - - if (!request_region(smbus->base, smbus->size, - pasemi_smb_driver.name)) { - error = -EBUSY; - goto out_kfree; - } - - smbus->ioaddr = pci_iomap(dev, 0, 0); - if (!smbus->ioaddr) { - error = -EBUSY; - goto out_release_region; - } - - int error = pasemi_i2c_common_probe(smbus); - if (error) - goto out_ioport_unmap; - - pci_set_drvdata(dev, smbus); - - return 0; - - out_ioport_unmap: - pci_iounmap(dev, smbus->ioaddr); - out_release_region: - release_region(smbus->base, smbus->size); - out_kfree: - kfree(smbus); - return error; -} - -static void pasemi_smb_remove(struct pci_dev *dev) -{ - struct pasemi_smbus *smbus = pci_get_drvdata(dev); - - i2c_del_adapter(&smbus->adapter); - pci_iounmap(dev, smbus->ioaddr); - release_region(smbus->base, smbus->size); - kfree(smbus); -} - -static const struct pci_device_id pasemi_smb_ids[] = { - { PCI_DEVICE(0x1959, 0xa003) }, - { 0, } -}; - -MODULE_DEVICE_TABLE(pci, pasemi_smb_ids); - -static struct pci_driver pasemi_smb_driver = { - .name = "i2c-pasemi", - .id_table = pasemi_smb_ids, - .probe = pasemi_smb_probe, - .remove = pasemi_smb_remove, -}; - -module_pci_driver(pasemi_smb_driver); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR ("Olof Johansson "); -MODULE_DESCRIPTION("PA Semi PWRficient SMBus driver"); diff --git a/drivers/i2c/busses/i2c-pasemi-core.h b/drivers/i2c/busses/i2c-pasemi-core.h new file mode 100644 index 000000000000..7acc33de6ce1 --- /dev/null +++ b/drivers/i2c/busses/i2c-pasemi-core.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include +#include +#include +#include +#include +#include +#include +#include + +struct pasemi_smbus { + struct device *dev; + struct i2c_adapter adapter; + void __iomem *ioaddr; + unsigned long base; + int size; +}; + +int pasemi_i2c_common_probe(struct pasemi_smbus *smbus); diff --git a/drivers/i2c/busses/i2c-pasemi-pci.c b/drivers/i2c/busses/i2c-pasemi-pci.c new file mode 100644 index 000000000000..644656e28012 --- /dev/null +++ b/drivers/i2c/busses/i2c-pasemi-pci.c @@ -0,0 +1,96 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2006-2007 PA Semi, Inc + * + * SMBus host driver for PA Semi PWRficient + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "i2c-pasemi-core.h" + +static struct pci_driver pasemi_smb_pci_driver; + +static int pasemi_smb_pci_probe(struct pci_dev *dev, + const struct pci_device_id *id) +{ + struct pasemi_smbus *smbus; + int error; + + if (!(pci_resource_flags(dev, 0) & IORESOURCE_IO)) + return -ENODEV; + + smbus = kzalloc(sizeof(struct pasemi_smbus), GFP_KERNEL); + if (!smbus) + return -ENOMEM; + + smbus->dev = &dev->dev; + smbus->base = pci_resource_start(dev, 0); + smbus->size = pci_resource_len(dev, 0); + + if (!request_region(smbus->base, smbus->size, + pasemi_smb_pci_driver.name)) { + error = -EBUSY; + goto out_kfree; + } + + smbus->ioaddr = pci_iomap(dev, 0, 0); + if (!smbus->ioaddr) { + error = -EBUSY; + goto out_release_region; + } + + error = pasemi_i2c_common_probe(smbus); + if (error) + goto out_ioport_unmap; + + pci_set_drvdata(dev, smbus); + + return 0; + + out_ioport_unmap: + pci_iounmap(dev, smbus->ioaddr); + out_release_region: + release_region(smbus->base, smbus->size); + out_kfree: + kfree(smbus); + return error; +} + +static void pasemi_smb_pci_remove(struct pci_dev *dev) +{ + struct pasemi_smbus *smbus = pci_get_drvdata(dev); + + i2c_del_adapter(&smbus->adapter); + pci_iounmap(dev, smbus->ioaddr); + release_region(smbus->base, smbus->size); + kfree(smbus); +} + +static const struct pci_device_id pasemi_smb_pci_ids[] = { + { PCI_DEVICE(0x1959, 0xa003) }, + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, pasemi_smb_pci_ids); + +static struct pci_driver pasemi_smb_pci_driver = { + .name = "i2c-pasemi", + .id_table = pasemi_smb_pci_ids, + .probe = pasemi_smb_pci_probe, + .remove = pasemi_smb_pci_remove, +}; + +module_pci_driver(pasemi_smb_pci_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Olof Johansson "); +MODULE_DESCRIPTION("PA Semi PWRficient SMBus driver"); From patchwork Fri Oct 8 16:35:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 1538479 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=qHzfzmqz; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=NvieJBEY; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=112.213.38.117; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HQv8j3S4qz9sP7 for ; Sat, 9 Oct 2021 03:41:25 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HQv8h2SYxz3cl7 for ; Sat, 9 Oct 2021 03:41:24 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=qHzfzmqz; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=NvieJBEY; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=svenpeter.dev (client-ip=66.111.4.224; helo=new2-smtp.messagingengine.com; envelope-from=sven@svenpeter.dev; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=qHzfzmqz; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=NvieJBEY; dkim-atps=neutral Received: from new2-smtp.messagingengine.com (new2-smtp.messagingengine.com [66.111.4.224]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HQv391rqKz2yXW for ; Sat, 9 Oct 2021 03:36:37 +1100 (AEDT) Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailnew.nyi.internal (Postfix) with ESMTP id 4CF92581015; Fri, 8 Oct 2021 12:36:35 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute6.internal (MEProxy); Fri, 08 Oct 2021 12:36:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=EqH0ZsHiaEtwh Gi9zyJrCeQh7KgGC2k47TQ9WU71+SM=; b=qHzfzmqzTb5HjdBSQQUrPULx3wCyo vkDYdYvnmjYNIRJpNS6cgV3O1A5Wd96nHW1bzrhFRSZDNS2ZN5oPebwyQzSpWthn e21+jAVFN/zSZ6aYqA+18Cr5XHLu4xR9lnS9za8X9quhQUjbT0BdjdzEHNuVb5pl 77iWZx8O+x0ZuqdplbIxIFUg1GZU7GnnJ5Hf7RHwuiIVdDUkWxoVVKt3WNFhMv8C iTYiVUllWaTeYMg0eg40XGjNY9k+d6ARTn5p9GfUd89Y+8gR+qDIGJV7NUSdaSCl 2c/lRnZexw6HrcKewX1AtPkLdUpPCsAErWceJuUAkXQcKHOM+75YHBk1g== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=EqH0ZsHiaEtwhGi9zyJrCeQh7KgGC2k47TQ9WU71+SM=; b=NvieJBEY AqZCkkdT9cfTcHNcfv3MrAOB8DwlF13r3rjCasDMtlNTGNy1sLqplD6iFqTR+f2B 6CdP4+zNaycV9ENcsLtr/wNvB8b49MJzrr4gMgAcwL0Ls3HLGBLO//8duqEwRhmg 0oalKDfWcIp6jOWoXAGcNTi62ro+OWxwFkiZdBkSUbg9dlKTIKRmYXLE3s/AreqK ADWSGjjA2QFpD0vgOesbE6YLG0Zgi2SPB6y/gN7tzOP0FtM0jdUrDgGbFG14Fs9c mD9Q5NaKufYF8fRDS1RW/PS+86yVzdDOD7EajMgbbe/EI/Q0PewOZx0PK3ZfYVSW 9P5e4FgYqfyJeQ== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrvddttddguddttdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufhvvghn ucfrvghtvghruceoshhvvghnsehsvhgvnhhpvghtvghrrdguvghvqeenucggtffrrghtth gvrhhnpeetvdekteeluefffffhkeetteffgefggfevheeileeufedvtdeuffevveelhfef jeenucevlhhushhtvghrufhiiigvpeefnecurfgrrhgrmhepmhgrihhlfhhrohhmpehsvh gvnhesshhvvghnphgvthgvrhdruggvvh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 8 Oct 2021 12:36:33 -0400 (EDT) From: Sven Peter To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Olof Johansson , Christian Zigotzky , Wolfram Sang Subject: [PATCH v2 07/11] i2c: pasemi: Move common reset code to own function Date: Fri, 8 Oct 2021 18:35:28 +0200 Message-Id: <20211008163532.75569-8-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20211008163532.75569-1-sven@svenpeter.dev> References: <20211008163532.75569-1-sven@svenpeter.dev> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnd Bergmann , Sven Peter , Hector Martin , linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mohamed Mediouni , Stan Skowronek , linuxppc-dev@lists.ozlabs.org, Alyssa Rosenzweig , Mark Kettenis Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Split out common reset call to its own function so that we can later add support for selecting the clock frequency and an additional enable bit found in newer revisions. Reviewed-by: Arnd Bergmann Signed-off-by: Sven Peter --- v1 -> v2: no changes drivers/i2c/busses/i2c-pasemi-core.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/i2c/busses/i2c-pasemi-core.c b/drivers/i2c/busses/i2c-pasemi-core.c index d1cab11a4d50..232587c70a38 100644 --- a/drivers/i2c/busses/i2c-pasemi-core.c +++ b/drivers/i2c/busses/i2c-pasemi-core.c @@ -61,6 +61,12 @@ static inline int reg_read(struct pasemi_smbus *smbus, int reg) #define TXFIFO_WR(smbus, reg) reg_write((smbus), REG_MTXFIFO, (reg)) #define RXFIFO_RD(smbus) reg_read((smbus), REG_MRXFIFO) +static void pasemi_reset(struct pasemi_smbus *smbus) +{ + reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR | + (CLK_100K_DIV & CTL_CLK_M))); +} + static void pasemi_smb_clear(struct pasemi_smbus *smbus) { unsigned int status; @@ -135,8 +141,7 @@ static int pasemi_i2c_xfer_msg(struct i2c_adapter *adapter, return 0; reset_out: - reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR | - (CLK_100K_DIV & CTL_CLK_M))); + pasemi_reset(smbus); return err; } @@ -302,8 +307,7 @@ static int pasemi_smb_xfer(struct i2c_adapter *adapter, return 0; reset_out: - reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR | - (CLK_100K_DIV & CTL_CLK_M))); + pasemi_reset(smbus); return err; } @@ -335,8 +339,7 @@ int pasemi_i2c_common_probe(struct pasemi_smbus *smbus) /* set up the sysfs linkage to our parent device */ smbus->adapter.dev.parent = smbus->dev; - reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR | - (CLK_100K_DIV & CTL_CLK_M))); + pasemi_reset(smbus); error = i2c_add_adapter(&smbus->adapter); if (error) From patchwork Fri Oct 8 16:35:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 1538480 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=PVRXKF1M; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=GWgCb98T; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HQv9S4yXQz9sP7 for ; Sat, 9 Oct 2021 03:42:04 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HQv9S3SHPz3dYj for ; Sat, 9 Oct 2021 03:42:04 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=PVRXKF1M; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=GWgCb98T; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=svenpeter.dev (client-ip=66.111.4.224; helo=new2-smtp.messagingengine.com; envelope-from=sven@svenpeter.dev; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=PVRXKF1M; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=GWgCb98T; dkim-atps=neutral Received: from new2-smtp.messagingengine.com (new2-smtp.messagingengine.com [66.111.4.224]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HQv3C5pzjz309K for ; Sat, 9 Oct 2021 03:36:39 +1100 (AEDT) Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailnew.nyi.internal (Postfix) with ESMTP id BF049581017; Fri, 8 Oct 2021 12:36:37 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute6.internal (MEProxy); Fri, 08 Oct 2021 12:36:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=wjaNOvoPfH5mR fPiYoh4MKVRamUagf3VG7kW7qVwEyI=; b=PVRXKF1MDnHNQ8uwHshftgIhfsaJI aPYojnjSAysotdtPE4uG4rVqDSwkfNWxMo0/MPrfOE2OkDcMyf7a87Nv8CRaFAuj brQ0MvI/CpTX1eS1ZBMf6e0Eu9DDj8Vm0pxG+mqf/PRiqidH0CASutdviTeHV1Dd D5egebv34yjpOFFxcdQZknWCh/mtJz2ZdaFqVyXKlPT34DXoax4eJKDwKpP0JUNQ TdtXu2Q1xv2aMaPCQYQESdr+kilumrM4wdThImE8b9LXPFV7dO5DGDcr+TXdrv/T 9O5eHymO84HmljQx81CkFy/dy8Um3EuXGOvD8Pdds+g7RvjfDaUd64zsg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=wjaNOvoPfH5mRfPiYoh4MKVRamUagf3VG7kW7qVwEyI=; b=GWgCb98T q6hh5DECoOk+pLf5s6cxti9ythS78R2SrH4KZpfzpp5jpYeglh8sCj157as5lqrN yDBy9+jnipIB7gruh5Mbdhw2jss+vPpEvzGu/aK1z07EH2mZaKI28ezjTuz/ccfU ox9ALfGBfIons666iCFICd7metvKeHiY4yxl04QITuXwKUo+hyLbrzDLwMk4oAtR INDuuB6qhMhADBEKHQVCcpWVVpEsaGJGkG/W6812C5PhIH76YfKyDEfwtyKJVwCC 2I+3G6Sv780CHuKqhGyW0DsesBMOlL/4KhvgaWTGSrHf30hy0PZ+2HK3u1aTyTNG se1zZ0jUd4pXEA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrvddttddguddttdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufhvvghn ucfrvghtvghruceoshhvvghnsehsvhgvnhhpvghtvghrrdguvghvqeenucggtffrrghtth gvrhhnpeetvdekteeluefffffhkeetteffgefggfevheeileeufedvtdeuffevveelhfef jeenucevlhhushhtvghrufhiiigvpeefnecurfgrrhgrmhepmhgrihhlfhhrohhmpehsvh gvnhesshhvvghnphgvthgvrhdruggvvh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 8 Oct 2021 12:36:35 -0400 (EDT) From: Sven Peter To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Olof Johansson , Christian Zigotzky , Wolfram Sang Subject: [PATCH v2 08/11] i2c: pasemi: Allow to configure bus frequency Date: Fri, 8 Oct 2021 18:35:29 +0200 Message-Id: <20211008163532.75569-9-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20211008163532.75569-1-sven@svenpeter.dev> References: <20211008163532.75569-1-sven@svenpeter.dev> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnd Bergmann , Sven Peter , Hector Martin , linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mohamed Mediouni , Stan Skowronek , linuxppc-dev@lists.ozlabs.org, Alyssa Rosenzweig , Mark Kettenis Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Right now the bus frequency has always been hardcoded as 100 KHz with the specific reference clock used in the PASemi PCI controllers. Make this configurable to prepare for the platform driver. Reviewed-by: Arnd Bergmann Signed-off-by: Sven Peter --- v1 -> v2: no changes drivers/i2c/busses/i2c-pasemi-core.c | 8 +++----- drivers/i2c/busses/i2c-pasemi-core.h | 1 + drivers/i2c/busses/i2c-pasemi-pci.c | 4 ++++ 3 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-pasemi-core.c b/drivers/i2c/busses/i2c-pasemi-core.c index 232587c70a38..9fb8fac53f2b 100644 --- a/drivers/i2c/busses/i2c-pasemi-core.c +++ b/drivers/i2c/busses/i2c-pasemi-core.c @@ -39,9 +39,6 @@ #define CTL_MTR 0x00000200 #define CTL_CLK_M 0x000000ff -#define CLK_100K_DIV 84 -#define CLK_400K_DIV 21 - static inline void reg_write(struct pasemi_smbus *smbus, int reg, int val) { dev_dbg(smbus->dev, "smbus write reg %lx val %08x\n", @@ -63,8 +60,9 @@ static inline int reg_read(struct pasemi_smbus *smbus, int reg) static void pasemi_reset(struct pasemi_smbus *smbus) { - reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR | - (CLK_100K_DIV & CTL_CLK_M))); + u32 val = (CTL_MTR | CTL_MRR | (smbus->clk_div & CTL_CLK_M)); + + reg_write(smbus, REG_CTL, val); } static void pasemi_smb_clear(struct pasemi_smbus *smbus) diff --git a/drivers/i2c/busses/i2c-pasemi-core.h b/drivers/i2c/busses/i2c-pasemi-core.h index 7acc33de6ce1..30a7990825ef 100644 --- a/drivers/i2c/busses/i2c-pasemi-core.h +++ b/drivers/i2c/busses/i2c-pasemi-core.h @@ -14,6 +14,7 @@ struct pasemi_smbus { void __iomem *ioaddr; unsigned long base; int size; + unsigned int clk_div; }; int pasemi_i2c_common_probe(struct pasemi_smbus *smbus); diff --git a/drivers/i2c/busses/i2c-pasemi-pci.c b/drivers/i2c/busses/i2c-pasemi-pci.c index 644656e28012..96585bbf8c24 100644 --- a/drivers/i2c/busses/i2c-pasemi-pci.c +++ b/drivers/i2c/busses/i2c-pasemi-pci.c @@ -17,6 +17,9 @@ #include "i2c-pasemi-core.h" +#define CLK_100K_DIV 84 +#define CLK_400K_DIV 21 + static struct pci_driver pasemi_smb_pci_driver; static int pasemi_smb_pci_probe(struct pci_dev *dev, @@ -35,6 +38,7 @@ static int pasemi_smb_pci_probe(struct pci_dev *dev, smbus->dev = &dev->dev; smbus->base = pci_resource_start(dev, 0); smbus->size = pci_resource_len(dev, 0); + smbus->clk_div = CLK_100K_DIV; if (!request_region(smbus->base, smbus->size, pasemi_smb_pci_driver.name)) { From patchwork Fri Oct 8 16:35:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 1538481 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=BYqjHu4P; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=OnW4a3lJ; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HQvBN1KM9z9sP7 for ; Sat, 9 Oct 2021 03:42:52 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HQvBN0Wgtz3cRP for ; Sat, 9 Oct 2021 03:42:52 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=BYqjHu4P; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=OnW4a3lJ; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=svenpeter.dev (client-ip=66.111.4.224; helo=new2-smtp.messagingengine.com; envelope-from=sven@svenpeter.dev; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=BYqjHu4P; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=OnW4a3lJ; dkim-atps=neutral Received: from new2-smtp.messagingengine.com (new2-smtp.messagingengine.com [66.111.4.224]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HQv3G1pvhz3bfl for ; Sat, 9 Oct 2021 03:36:42 +1100 (AEDT) Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailnew.nyi.internal (Postfix) with ESMTP id 58614581019; Fri, 8 Oct 2021 12:36:40 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute4.internal (MEProxy); Fri, 08 Oct 2021 12:36:40 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=7/ewSHwHFvXHV z7zgXaLq5m2XodTDUuxa+TeH6oVjzo=; b=BYqjHu4PRKriuBz3uQTVvnUPpDbu6 8SGgVy7YSXcpiK10zNcHDJ10SY2bjj+rBLn+qH7LXe7eBCcp7wdrIEA3WkJmYLR0 PD2L9Zy4K5cUl2W6tC9rxlayr+NhjMznB9IR4XnuukqbNr7du0SkjGW/9ioo7jfy LjvzbI1auzM8GjzMMUZP10DkOLuGDrMPMxKiJYCBuNENUzS0uUaxqvJE00Ppw2Md c2QnpzgRF7/OvsHDJDusuOIuuaU+9z7huoEENGyiDcblJGoJDK/ddXKGGme1FZuK 7FtCIvKrora0bIAMDx/u59cvXUzpz8iUxOSLK7dRML9CcbnnzOTqQUFKA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=7/ewSHwHFvXHVz7zgXaLq5m2XodTDUuxa+TeH6oVjzo=; b=OnW4a3lJ QBOfnFuWH2S86+kyLA/BewPgDvMnkcz3ooZ4r5zKA+1PJ1B3VDmlh7Wkz/mHwK3S s8jG/OovqnoNqPhxn8JIiB7YCJNHs8tJrolWJSAn3GWc6zCz8j8Mzh9jxufCrDdv HAeUBUPC6rK7/+VeiBfmWWr8kIu9WbvGvxLwDFofggW7Wzls0BBFmO6DyNo2LaLz caTRg7i6mi5eRQ4i21ceMUSUuS54O6Xz9BkhKyDzaex4EnWWyroNuiNuNlE2dB+S OrSRaltpikJkCq50+eWplzcm6zmqdFxrc0+zi3Nqf6iAy2BMLSaeh+8KLpWJFVJC sYiizhNeLLBeRA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrvddttddguddttdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufhvvghn ucfrvghtvghruceoshhvvghnsehsvhgvnhhpvghtvghrrdguvghvqeenucggtffrrghtth gvrhhnpeetvdekteeluefffffhkeetteffgefggfevheeileeufedvtdeuffevveelhfef jeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehsvh gvnhesshhvvghnphgvthgvrhdruggvvh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 8 Oct 2021 12:36:38 -0400 (EDT) From: Sven Peter To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Olof Johansson , Christian Zigotzky , Wolfram Sang Subject: [PATCH v2 09/11] i2c: pasemi: Refactor _probe to use devm_* Date: Fri, 8 Oct 2021 18:35:30 +0200 Message-Id: <20211008163532.75569-10-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20211008163532.75569-1-sven@svenpeter.dev> References: <20211008163532.75569-1-sven@svenpeter.dev> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnd Bergmann , Sven Peter , Hector Martin , linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mohamed Mediouni , Stan Skowronek , linuxppc-dev@lists.ozlabs.org, Alyssa Rosenzweig , Mark Kettenis Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Using managed device resources means there's nothing left to be done in pasemi_smb_pci_remove and also allows to remove base and size from struct pasemi_smbus. Reviewed-by: Arnd Bergmann Signed-off-by: Sven Peter --- v1 -> v2: no changes drivers/i2c/busses/i2c-pasemi-core.c | 8 ++--- drivers/i2c/busses/i2c-pasemi-core.h | 2 -- drivers/i2c/busses/i2c-pasemi-pci.c | 45 ++++++++-------------------- 3 files changed, 15 insertions(+), 40 deletions(-) diff --git a/drivers/i2c/busses/i2c-pasemi-core.c b/drivers/i2c/busses/i2c-pasemi-core.c index 9fb8fac53f2b..3d87b64dd9f7 100644 --- a/drivers/i2c/busses/i2c-pasemi-core.c +++ b/drivers/i2c/busses/i2c-pasemi-core.c @@ -41,8 +41,7 @@ static inline void reg_write(struct pasemi_smbus *smbus, int reg, int val) { - dev_dbg(smbus->dev, "smbus write reg %lx val %08x\n", - smbus->base + reg, val); + dev_dbg(smbus->dev, "smbus write reg %x val %08x\n", reg, val); iowrite32(val, smbus->ioaddr + reg); } @@ -50,8 +49,7 @@ static inline int reg_read(struct pasemi_smbus *smbus, int reg) { int ret; ret = ioread32(smbus->ioaddr + reg); - dev_dbg(smbus->dev, "smbus read reg %lx val %08x\n", - smbus->base + reg, ret); + dev_dbg(smbus->dev, "smbus read reg %x val %08x\n", reg, ret); return ret; } @@ -339,7 +337,7 @@ int pasemi_i2c_common_probe(struct pasemi_smbus *smbus) pasemi_reset(smbus); - error = i2c_add_adapter(&smbus->adapter); + error = devm_i2c_add_adapter(smbus->dev, &smbus->adapter); if (error) return error; diff --git a/drivers/i2c/busses/i2c-pasemi-core.h b/drivers/i2c/busses/i2c-pasemi-core.h index 30a7990825ef..aca4e2da9089 100644 --- a/drivers/i2c/busses/i2c-pasemi-core.h +++ b/drivers/i2c/busses/i2c-pasemi-core.h @@ -12,8 +12,6 @@ struct pasemi_smbus { struct device *dev; struct i2c_adapter adapter; void __iomem *ioaddr; - unsigned long base; - int size; unsigned int clk_div; }; diff --git a/drivers/i2c/busses/i2c-pasemi-pci.c b/drivers/i2c/busses/i2c-pasemi-pci.c index 96585bbf8c24..4251e7b9f177 100644 --- a/drivers/i2c/busses/i2c-pasemi-pci.c +++ b/drivers/i2c/busses/i2c-pasemi-pci.c @@ -26,57 +26,37 @@ static int pasemi_smb_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { struct pasemi_smbus *smbus; + unsigned long base; + int size; int error; if (!(pci_resource_flags(dev, 0) & IORESOURCE_IO)) return -ENODEV; - smbus = kzalloc(sizeof(struct pasemi_smbus), GFP_KERNEL); + smbus = devm_kzalloc(&dev->dev, sizeof(*smbus), GFP_KERNEL); if (!smbus) return -ENOMEM; smbus->dev = &dev->dev; - smbus->base = pci_resource_start(dev, 0); - smbus->size = pci_resource_len(dev, 0); + base = pci_resource_start(dev, 0); + size = pci_resource_len(dev, 0); smbus->clk_div = CLK_100K_DIV; - if (!request_region(smbus->base, smbus->size, - pasemi_smb_pci_driver.name)) { - error = -EBUSY; - goto out_kfree; - } + if (!devm_request_region(&dev->dev, base, size, + pasemi_smb_pci_driver.name)) + return -EBUSY; - smbus->ioaddr = pci_iomap(dev, 0, 0); - if (!smbus->ioaddr) { - error = -EBUSY; - goto out_release_region; - } + smbus->ioaddr = pcim_iomap(dev, 0, 0); + if (!smbus->ioaddr) + return -EBUSY; error = pasemi_i2c_common_probe(smbus); if (error) - goto out_ioport_unmap; + return error; pci_set_drvdata(dev, smbus); return 0; - - out_ioport_unmap: - pci_iounmap(dev, smbus->ioaddr); - out_release_region: - release_region(smbus->base, smbus->size); - out_kfree: - kfree(smbus); - return error; -} - -static void pasemi_smb_pci_remove(struct pci_dev *dev) -{ - struct pasemi_smbus *smbus = pci_get_drvdata(dev); - - i2c_del_adapter(&smbus->adapter); - pci_iounmap(dev, smbus->ioaddr); - release_region(smbus->base, smbus->size); - kfree(smbus); } static const struct pci_device_id pasemi_smb_pci_ids[] = { @@ -90,7 +70,6 @@ static struct pci_driver pasemi_smb_pci_driver = { .name = "i2c-pasemi", .id_table = pasemi_smb_pci_ids, .probe = pasemi_smb_pci_probe, - .remove = pasemi_smb_pci_remove, }; module_pci_driver(pasemi_smb_pci_driver); From patchwork Fri Oct 8 16:35:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 1538482 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=C1F5K3un; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=g+eprF4x; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=112.213.38.117; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HQvC92zwRz9sP7 for ; Sat, 9 Oct 2021 03:43:33 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HQvC86rNMz3dfm for ; Sat, 9 Oct 2021 03:43:32 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=C1F5K3un; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=g+eprF4x; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=svenpeter.dev (client-ip=66.111.4.224; helo=new2-smtp.messagingengine.com; envelope-from=sven@svenpeter.dev; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=C1F5K3un; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=g+eprF4x; dkim-atps=neutral Received: from new2-smtp.messagingengine.com (new2-smtp.messagingengine.com [66.111.4.224]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HQv3J5RLxz303H for ; Sat, 9 Oct 2021 03:36:44 +1100 (AEDT) Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailnew.nyi.internal (Postfix) with ESMTP id D123758101B; Fri, 8 Oct 2021 12:36:42 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute4.internal (MEProxy); Fri, 08 Oct 2021 12:36:42 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=Xxf/oLBb94WpO qtFzUC5D0kmaoK2xnr3zs7/ZlJB6DQ=; b=C1F5K3unnEnj0ThmmGWCi/JVG8d2p eF8KUpeR+MISd0IiDaNmRZKjHJu+7vYJEJy4fatOTRzp4yJqfThLEb7WwmPVX6R+ hXA1Q00xgojcKVH1cL8IOV/Id8rpTE6P6xcuO7BNxasLrAur08TDTHLofQ5EkDxq +TlqNVcq4Eq9P/YZt0XxLQnz9QlDdKz/4ck63vDI15CKHSo5Bvj4iLfXv+jmTBtP /W5scloZwFCFqV+JfMA84HsRWPpDp2dzLqCtAvEwD5AhYYLc3OEPxOQxP4xLkgy0 IvnfeUeW0xwuNXLg0P9DL6GbrMMxNB2AhhBSfVhG2QprrGEHAuEJIi37Q== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=Xxf/oLBb94WpOqtFzUC5D0kmaoK2xnr3zs7/ZlJB6DQ=; b=g+eprF4x 6sDwPQT54h2rD4vlfJHrHDJ/QyY7KDEwzsCLIXReh+WTt0SxWnNqOlun11r7vMq9 IvqfXAd+CI/uE6mN3koX6y2JQZeHLVfD5SLtSxt7BIMzM4WZO0et/ui34o25IOfp eE/EpL0TY8hzmEhDXACmXPL8TCRYj6yK5xujq5CaQkgakNSIJMUm9ZrfziBwtxXO ZC7qlhfyR0g9jAa4PoJxmoyyZ87Jye8Jk71jzFZpLt016qR4ZgVg0AQkC1a6/O/3 UuweHlV8JA6DCeFAPyJShmaJU2OcKPDa7Vxpf9M5HGlOrzsZoTkoyZa312MbC9pc zO81H0MZOIvG7Q== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrvddttddguddttdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufhvvghn ucfrvghtvghruceoshhvvghnsehsvhgvnhhpvghtvghrrdguvghvqeenucggtffrrghtth gvrhhnpeetvdekteeluefffffhkeetteffgefggfevheeileeufedvtdeuffevveelhfef jeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehsvh gvnhesshhvvghnphgvthgvrhdruggvvh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 8 Oct 2021 12:36:40 -0400 (EDT) From: Sven Peter To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Olof Johansson , Christian Zigotzky , Wolfram Sang Subject: [PATCH v2 10/11] i2c: pasemi: Add Apple platform driver Date: Fri, 8 Oct 2021 18:35:31 +0200 Message-Id: <20211008163532.75569-11-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20211008163532.75569-1-sven@svenpeter.dev> References: <20211008163532.75569-1-sven@svenpeter.dev> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnd Bergmann , Sven Peter , Hector Martin , linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mohamed Mediouni , Stan Skowronek , linuxppc-dev@lists.ozlabs.org, Alyssa Rosenzweig , Mark Kettenis Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" With all the previous preparations we can now finally add the platform driver to support the PASemi-based controllers in Apple SoCs. This does not work on the M1 yet but should work on the early iPhones already. Reviewed-by: Arnd Bergmann Signed-off-by: Sven Peter --- v1 -> v2: - renamed i2c-pasemi-apple.c to i2c-pasemi-platform.c and adjusted function names as well - removed unused struct pinctrl *pctrl which snuck into v1 MAINTAINERS | 1 + drivers/i2c/busses/Kconfig | 11 ++ drivers/i2c/busses/Makefile | 2 + drivers/i2c/busses/i2c-pasemi-platform.c | 122 +++++++++++++++++++++++ 4 files changed, 136 insertions(+) create mode 100644 drivers/i2c/busses/i2c-pasemi-platform.c diff --git a/MAINTAINERS b/MAINTAINERS index 74aa85967ca3..8e0f1dc94b5b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1740,6 +1740,7 @@ F: Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml F: Documentation/devicetree/bindings/pci/apple,pcie.yaml F: Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml F: arch/arm64/boot/dts/apple/ +F: drivers/i2c/busses/i2c-pasemi-platform.c F: drivers/irqchip/irq-apple-aic.c F: include/dt-bindings/interrupt-controller/apple-aic.h F: include/dt-bindings/pinctrl/apple.h diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 1df19ccc310b..dce392839017 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -859,6 +859,17 @@ config I2C_PASEMI help Supports the PA Semi PWRficient on-chip SMBus interfaces. +config I2C_APPLE + tristate "Apple SMBus platform driver" + depends on ARCH_APPLE || COMPILE_TEST + default ARCH_APPLE + help + Say Y here if you want to use the I2C controller present on Apple + Silicon chips such as the M1. + + This driver can also be built as a module. If so, the module + will be called i2c-apple. + config I2C_PCA_PLATFORM tristate "PCA9564/PCA9665 as platform device" select I2C_ALGOPCA diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile index 0ab1b4cb2228..d85899fef8c7 100644 --- a/drivers/i2c/busses/Makefile +++ b/drivers/i2c/busses/Makefile @@ -86,6 +86,8 @@ obj-$(CONFIG_I2C_OMAP) += i2c-omap.o obj-$(CONFIG_I2C_OWL) += i2c-owl.o i2c-pasemi-objs := i2c-pasemi-core.o i2c-pasemi-pci.o obj-$(CONFIG_I2C_PASEMI) += i2c-pasemi.o +i2c-apple-objs := i2c-pasemi-core.o i2c-pasemi-platform.o +obj-$(CONFIG_I2C_APPLE) += i2c-apple.o obj-$(CONFIG_I2C_PCA_PLATFORM) += i2c-pca-platform.o obj-$(CONFIG_I2C_PNX) += i2c-pnx.o obj-$(CONFIG_I2C_PXA) += i2c-pxa.o diff --git a/drivers/i2c/busses/i2c-pasemi-platform.c b/drivers/i2c/busses/i2c-pasemi-platform.c new file mode 100644 index 000000000000..88a54aaf7e3c --- /dev/null +++ b/drivers/i2c/busses/i2c-pasemi-platform.c @@ -0,0 +1,122 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2021 The Asahi Linux Contributors + * + * PA Semi PWRficient SMBus host driver for Apple SoCs + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "i2c-pasemi-core.h" + +struct pasemi_platform_i2c_data { + struct pasemi_smbus smbus; + struct clk *clk_ref; +}; + +static int +pasemi_platform_i2c_calc_clk_div(struct pasemi_platform_i2c_data *data, + u32 frequency) +{ + unsigned long clk_rate = clk_get_rate(data->clk_ref); + + if (!clk_rate) + return -EINVAL; + + data->smbus.clk_div = DIV_ROUND_UP(clk_rate, 16 * frequency); + if (data->smbus.clk_div < 4) + return dev_err_probe(data->smbus.dev, -EINVAL, + "Bus frequency %d is too fast.\n", + frequency); + if (data->smbus.clk_div > 0xff) + return dev_err_probe(data->smbus.dev, -EINVAL, + "Bus frequency %d is too slow.\n", + frequency); + + return 0; +} + +static int pasemi_platform_i2c_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct pasemi_platform_i2c_data *data; + struct pasemi_smbus *smbus; + u32 frequency; + int error; + + data = devm_kzalloc(dev, sizeof(struct pasemi_platform_i2c_data), + GFP_KERNEL); + if (!data) + return -ENOMEM; + + smbus = &data->smbus; + smbus->dev = dev; + + smbus->ioaddr = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(smbus->ioaddr)) + return PTR_ERR(smbus->ioaddr); + + if (of_property_read_u32(dev->of_node, "clock-frequency", &frequency)) + frequency = I2C_MAX_STANDARD_MODE_FREQ; + + data->clk_ref = devm_clk_get(dev, NULL); + if (IS_ERR(data->clk_ref)) + return PTR_ERR(data->clk_ref); + + error = clk_prepare_enable(data->clk_ref); + if (error) + return error; + + error = pasemi_platform_i2c_calc_clk_div(data, frequency); + if (error) + goto out_clk_disable; + + smbus->adapter.dev.of_node = pdev->dev.of_node; + error = pasemi_i2c_common_probe(smbus); + if (error) + goto out_clk_disable; + + platform_set_drvdata(pdev, data); + + return 0; + +out_clk_disable: + clk_disable_unprepare(data->clk_ref); + + return error; +} + +static int pasemi_platform_i2c_remove(struct platform_device *pdev) +{ + struct pasemi_platform_i2c_data *data = platform_get_drvdata(pdev); + + clk_disable_unprepare(data->clk_ref); + return 0; +} + +static const struct of_device_id pasemi_platform_i2c_of_match[] = { + { .compatible = "apple,t8103-i2c" }, + { .compatible = "apple,i2c" }, + {}, +}; +MODULE_DEVICE_TABLE(of, pasemi_platform_i2c_of_match); + +static struct platform_driver pasemi_platform_i2c_driver = { + .driver = { + .name = "i2c-apple", + .of_match_table = pasemi_platform_i2c_of_match, + }, + .probe = pasemi_platform_i2c_probe, + .remove = pasemi_platform_i2c_remove, +}; +module_platform_driver(pasemi_platform_i2c_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Sven Peter "); +MODULE_DESCRIPTION("Apple/PASemi SMBus platform driver"); From patchwork Fri Oct 8 16:35:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 1538483 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=RlbSNg0L; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=gGQ9/szq; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=112.213.38.117; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HQvCw5Lqkz9sP7 for ; Sat, 9 Oct 2021 03:44:12 +1100 (AEDT) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HQvCw3z7Vz3cV5 for ; Sat, 9 Oct 2021 03:44:12 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=RlbSNg0L; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=gGQ9/szq; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=svenpeter.dev (client-ip=66.111.4.224; helo=new2-smtp.messagingengine.com; envelope-from=sven@svenpeter.dev; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm2 header.b=RlbSNg0L; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=gGQ9/szq; dkim-atps=neutral Received: from new2-smtp.messagingengine.com (new2-smtp.messagingengine.com [66.111.4.224]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HQv3M1jppz305h for ; Sat, 9 Oct 2021 03:36:47 +1100 (AEDT) Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailnew.nyi.internal (Postfix) with ESMTP id 5650658101A; Fri, 8 Oct 2021 12:36:45 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute4.internal (MEProxy); Fri, 08 Oct 2021 12:36:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=X1fW3jErcM0wF qDDyhC22DVevKA+s2U39zD/IcX7T2Y=; b=RlbSNg0LEvakuBBPEiDxWb/WeiPY+ lPw9Yx065rIxZop4zvLP8s/GdPbr+eiFRrvs4yhiW2RtEpTpRo7/X/gOpp3z3cMt tWIs441p+FMiEQz17te7EC3E+/TlTqgkQcHdUUp9GsNrar3WZMriAoz0TBrcZX5E tiBGKNyy91P1MdobLeyaOm0Nblh2R0jx711FvUpj9v+PqMM8EK0IOSJNVa3xNUXp 7znPYaOSMa2P3A3kykryXRgAgpP8IB+8d2CVbO4/gylZ3JV1hX2D4XoupoyoxoBn ReYHXXFOWU5wPQRBk0UMj4xHfknZp1Uvch4sP4yS3QkRaoLJKBKfwvACA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=X1fW3jErcM0wFqDDyhC22DVevKA+s2U39zD/IcX7T2Y=; b=gGQ9/szq CMn5XSJV/7/vEIUHwSCbtc0uamf9mPtpDmyjXJWEp5UFSNLNkTcyc4CSNivr1jGV P8uTTJ0S1l6ND9tSkXMAra5bS+lfpSQRYgtNTPSB58dZAm7jmUsGZcnyv4mdYvOc 3a2W11eFHd5Adr3X5B2/IOBKN3c2lsapz2eK5zeUTpJ0UdKTNpA9n9ifvrcBeHNG IzBJdHo3+fi1Z7Id3IU3snPOBSR5L3++TUJ1FsKG8+ajPITArwewVxN/HlEcJeOR NZq1HFyBZ1/vooF39hK1GEJ3q0tXZa6yx4KnTTfK7MN9hCfipLUXXkMlv49lra9V 2ZDjMeUtupr+9g== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrvddttddguddttdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufhvvghn ucfrvghtvghruceoshhvvghnsehsvhgvnhhpvghtvghrrdguvghvqeenucggtffrrghtth gvrhhnpeetvdekteeluefffffhkeetteffgefggfevheeileeufedvtdeuffevveelhfef jeenucevlhhushhtvghrufhiiigvpedvnecurfgrrhgrmhepmhgrihhlfhhrohhmpehsvh gvnhesshhvvghnphgvthgvrhdruggvvh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 8 Oct 2021 12:36:42 -0400 (EDT) From: Sven Peter To: Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Olof Johansson , Christian Zigotzky , Wolfram Sang Subject: [PATCH v2 11/11] i2c: pasemi: Set enable bit for Apple variant Date: Fri, 8 Oct 2021 18:35:32 +0200 Message-Id: <20211008163532.75569-12-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20211008163532.75569-1-sven@svenpeter.dev> References: <20211008163532.75569-1-sven@svenpeter.dev> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnd Bergmann , Sven Peter , Hector Martin , linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mohamed Mediouni , Stan Skowronek , linuxppc-dev@lists.ozlabs.org, Alyssa Rosenzweig , Mark Kettenis Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Some later revisions after the original PASemi I2C controller introduce what likely is an enable bit to the CTL register. Without setting it the actual i2c transmission is never started. Reviewed-by: Arnd Bergmann Signed-off-by: Sven Peter --- v1 -> v2: no changes drivers/i2c/busses/i2c-pasemi-core.c | 8 ++++++++ drivers/i2c/busses/i2c-pasemi-core.h | 3 +++ drivers/i2c/busses/i2c-pasemi-pci.c | 6 ++++++ 3 files changed, 17 insertions(+) diff --git a/drivers/i2c/busses/i2c-pasemi-core.c b/drivers/i2c/busses/i2c-pasemi-core.c index 3d87b64dd9f7..4e161a4089d8 100644 --- a/drivers/i2c/busses/i2c-pasemi-core.c +++ b/drivers/i2c/busses/i2c-pasemi-core.c @@ -22,6 +22,7 @@ #define REG_MRXFIFO 0x04 #define REG_SMSTA 0x14 #define REG_CTL 0x1c +#define REG_REV 0x28 /* Register defs */ #define MTXFIFO_READ 0x00000400 @@ -37,6 +38,7 @@ #define CTL_MRR 0x00000400 #define CTL_MTR 0x00000200 +#define CTL_EN 0x00000800 #define CTL_CLK_M 0x000000ff static inline void reg_write(struct pasemi_smbus *smbus, int reg, int val) @@ -60,6 +62,9 @@ static void pasemi_reset(struct pasemi_smbus *smbus) { u32 val = (CTL_MTR | CTL_MRR | (smbus->clk_div & CTL_CLK_M)); + if (smbus->hw_rev >= 6) + val |= CTL_EN; + reg_write(smbus, REG_CTL, val); } @@ -335,6 +340,9 @@ int pasemi_i2c_common_probe(struct pasemi_smbus *smbus) /* set up the sysfs linkage to our parent device */ smbus->adapter.dev.parent = smbus->dev; + if (smbus->hw_rev != PASEMI_HW_REV_PCI) + smbus->hw_rev = reg_read(smbus, REG_REV); + pasemi_reset(smbus); error = devm_i2c_add_adapter(smbus->dev, &smbus->adapter); diff --git a/drivers/i2c/busses/i2c-pasemi-core.h b/drivers/i2c/busses/i2c-pasemi-core.h index aca4e2da9089..4655124a37f3 100644 --- a/drivers/i2c/busses/i2c-pasemi-core.h +++ b/drivers/i2c/busses/i2c-pasemi-core.h @@ -8,11 +8,14 @@ #include #include +#define PASEMI_HW_REV_PCI -1 + struct pasemi_smbus { struct device *dev; struct i2c_adapter adapter; void __iomem *ioaddr; unsigned int clk_div; + int hw_rev; }; int pasemi_i2c_common_probe(struct pasemi_smbus *smbus); diff --git a/drivers/i2c/busses/i2c-pasemi-pci.c b/drivers/i2c/busses/i2c-pasemi-pci.c index 4251e7b9f177..1ab1f28744fb 100644 --- a/drivers/i2c/busses/i2c-pasemi-pci.c +++ b/drivers/i2c/busses/i2c-pasemi-pci.c @@ -42,6 +42,12 @@ static int pasemi_smb_pci_probe(struct pci_dev *dev, size = pci_resource_len(dev, 0); smbus->clk_div = CLK_100K_DIV; + /* + * The original PASemi PCI controllers don't have a register for + * their HW revision. + */ + smbus->hw_rev = PASEMI_HW_REV_PCI; + if (!devm_request_region(&dev->dev, base, size, pasemi_smb_pci_driver.name)) return -EBUSY;