From patchwork Thu Nov 9 18:19:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862196 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=kZLgWGs9; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4SR9Sn5HhSz1yQK for ; Fri, 10 Nov 2023 05:28:41 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344906AbjKIS2j (ORCPT ); Thu, 9 Nov 2023 13:28:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33332 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344938AbjKIS2j (ORCPT ); Thu, 9 Nov 2023 13:28:39 -0500 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BAEE53C04; Thu, 9 Nov 2023 10:28:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699554516; x=1731090516; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ch0lC4UnRy1QhfAy373rOTcUXFIZuCfpMxMzn+asH0A=; b=kZLgWGs9KES7mVnD70pmd8EGvOOLRjSTMfhz0w6gl04JPZeBS5LZxKKE L2Y2Ei0SW31C4RcDUt21qAjl8S9Z/llVNR+iM9WailHoXhafpV8MqHbgL HubSNnlsIbB+5nUYn4ddLRg/G1USVXSf1x46Mg3IPTOwUiQmY0BP7ecb6 SI2ex5bH7yOsXP+9qfORFdpgRuS56xTWz94NhLEg0C3ULh8oIfQXQ13rz JVsRoMPy3k5fSSCwG1W2C/LipOWi9t8YE/puAOzD3bnkbV4WpSVCHKNgk KBRhi7R6TtUYex7T0mYh8SycI1uTWXNUsicfJSsjp5siqj1yOxyBBFCd4 g==; X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="375088660" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="375088660" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2023 10:28:36 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="767086813" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="767086813" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga007.fm.intel.com with ESMTP; 09 Nov 2023 10:28:33 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 51A3E35A; Thu, 9 Nov 2023 20:28:32 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Herbert Xu , Mario Limonciello , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Hans de Goede Subject: [PATCH v2 01/12] i2c: designware: Replace MODULE_ALIAS() with MODULE_DEVICE_TABLE() Date: Thu, 9 Nov 2023 20:19:11 +0200 Message-ID: <20231109182823.3531846-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1996.gbec44491f096 In-Reply-To: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> References: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org As Krzysztof Kozlowski pointed out the better is to use MODULE_DEVICE_TABLE() as it will be consistent with the content of the real ID table of the platform devices. While at it, drop unneeded and unused module alias in PCI glue driver as PCI already has its own ID table and automatic loading should just work. Signed-off-by: Andy Shevchenko Reviewed-by: Andi Shyti --- drivers/i2c/busses/i2c-designware-pcidrv.c | 2 -- drivers/i2c/busses/i2c-designware-platdrv.c | 8 ++++++-- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 61d7a27aa070..bfafebecf680 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -424,8 +424,6 @@ static struct pci_driver dw_i2c_driver = { }; module_pci_driver(dw_i2c_driver); -/* Work with hotplug and coldplug */ -MODULE_ALIAS("i2c_designware-pci"); MODULE_AUTHOR("Baruch Siach "); MODULE_DESCRIPTION("Synopsys DesignWare PCI I2C bus adapter"); MODULE_LICENSE("GPL"); diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 855b698e99c0..cb7796b57085 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -479,8 +479,11 @@ static const struct dev_pm_ops dw_i2c_dev_pm_ops = { RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend, dw_i2c_plat_runtime_resume, NULL) }; -/* Work with hotplug and coldplug */ -MODULE_ALIAS("platform:i2c_designware"); +static const struct platform_device_id dw_i2c_platform_ids[] = { + { "i2c_designware" }, + {} +}; +MODULE_DEVICE_TABLE(platform, dw_i2c_platform_ids); static struct platform_driver dw_i2c_driver = { .probe = dw_i2c_plat_probe, @@ -491,6 +494,7 @@ static struct platform_driver dw_i2c_driver = { .acpi_match_table = ACPI_PTR(dw_i2c_acpi_match), .pm = pm_ptr(&dw_i2c_dev_pm_ops), }, + .id_table = dw_i2c_platform_ids, }; static int __init dw_i2c_init_driver(void) From patchwork Thu Nov 9 18:19:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862197 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=PHPWAC/5; 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09 Nov 2023 10:28:33 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 5CE3972F; Thu, 9 Nov 2023 20:28:32 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Herbert Xu , Mario Limonciello , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Hans de Goede Subject: [PATCH v2 02/12] i2c: designware: Always provide device ID tables Date: Thu, 9 Nov 2023 20:19:12 +0200 Message-ID: <20231109182823.3531846-3-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1996.gbec44491f096 In-Reply-To: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> References: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org There is no need to have ugly ifdeffery and additional macros for the device ID tables. Always provide them. Since we touch the ACPI table, make it sorted by ID. Unify termination as well. Reviewed-by: Andi Shyti Reviewed-by: Mario Limonciello Acked-by: Jarkko Nikula Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-platdrv.c | 62 ++++++++++----------- 1 file changed, 30 insertions(+), 32 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index cb7796b57085..7d960d3161c0 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -40,28 +40,6 @@ static u32 i2c_dw_get_clk_rate_khz(struct dw_i2c_dev *dev) return clk_get_rate(dev->clk) / KILO; } -#ifdef CONFIG_ACPI -static const struct acpi_device_id dw_i2c_acpi_match[] = { - { "INT33C2", 0 }, - { "INT33C3", 0 }, - { "INT3432", 0 }, - { "INT3433", 0 }, - { "80860F41", ACCESS_NO_IRQ_SUSPEND }, - { "808622C1", ACCESS_NO_IRQ_SUSPEND }, - { "AMD0010", ACCESS_INTR_MASK }, - { "AMDI0010", ACCESS_INTR_MASK }, - { "AMDI0019", ACCESS_INTR_MASK | ARBITRATION_SEMAPHORE }, - { "AMDI0510", 0 }, - { "APMC0D0F", 0 }, - { "HISI02A1", 0 }, - { "HISI02A2", 0 }, - { "HISI02A3", 0 }, - { "HYGO0010", ACCESS_INTR_MASK }, - { } -}; -MODULE_DEVICE_TABLE(acpi, dw_i2c_acpi_match); -#endif - #ifdef CONFIG_OF #define BT1_I2C_CTL 0x100 #define BT1_I2C_CTL_ADDR_MASK GENMASK(7, 0) @@ -148,14 +126,6 @@ static int dw_i2c_of_configure(struct platform_device *pdev) return 0; } - -static const struct of_device_id dw_i2c_of_match[] = { - { .compatible = "snps,designware-i2c", }, - { .compatible = "mscc,ocelot-i2c", .data = (void *)MODEL_MSCC_OCELOT }, - { .compatible = "baikal,bt1-sys-i2c", .data = (void *)MODEL_BAIKAL_BT1 }, - {}, -}; -MODULE_DEVICE_TABLE(of, dw_i2c_of_match); #else static int bt1_i2c_request_regs(struct dw_i2c_dev *dev) { @@ -479,6 +449,34 @@ static const struct dev_pm_ops dw_i2c_dev_pm_ops = { RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend, dw_i2c_plat_runtime_resume, NULL) }; +static const struct of_device_id dw_i2c_of_match[] = { + { .compatible = "snps,designware-i2c", }, + { .compatible = "mscc,ocelot-i2c", .data = (void *)MODEL_MSCC_OCELOT }, + { .compatible = "baikal,bt1-sys-i2c", .data = (void *)MODEL_BAIKAL_BT1 }, + {} +}; +MODULE_DEVICE_TABLE(of, dw_i2c_of_match); + +static const struct acpi_device_id dw_i2c_acpi_match[] = { + { "INT33C2", 0 }, + { "INT33C3", 0 }, + { "INT3432", 0 }, + { "INT3433", 0 }, + { "80860F41", ACCESS_NO_IRQ_SUSPEND }, + { "808622C1", ACCESS_NO_IRQ_SUSPEND }, + { "AMD0010", ACCESS_INTR_MASK }, + { "AMDI0010", ACCESS_INTR_MASK }, + { "AMDI0019", ACCESS_INTR_MASK | ARBITRATION_SEMAPHORE }, + { "AMDI0510", 0 }, + { "APMC0D0F", 0 }, + { "HISI02A1", 0 }, + { "HISI02A2", 0 }, + { "HISI02A3", 0 }, + { "HYGO0010", ACCESS_INTR_MASK }, + {} +}; +MODULE_DEVICE_TABLE(acpi, dw_i2c_acpi_match); + static const struct platform_device_id dw_i2c_platform_ids[] = { { "i2c_designware" }, {} @@ -490,8 +488,8 @@ static struct platform_driver dw_i2c_driver = { .remove_new = dw_i2c_plat_remove, .driver = { .name = "i2c_designware", - .of_match_table = of_match_ptr(dw_i2c_of_match), - .acpi_match_table = ACPI_PTR(dw_i2c_acpi_match), + .of_match_table = dw_i2c_of_match, + .acpi_match_table = dw_i2c_acpi_match, .pm = pm_ptr(&dw_i2c_dev_pm_ops), }, .id_table = dw_i2c_platform_ids, From patchwork Thu Nov 9 18:19:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862199 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=UR0fdGAr; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4SR9Sq1SnSz1yRT for ; Fri, 10 Nov 2023 05:28:43 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345009AbjKIS2l (ORCPT ); Thu, 9 Nov 2023 13:28:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33360 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344987AbjKIS2j (ORCPT ); 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09 Nov 2023 10:28:36 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="767086814" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="767086814" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga007.fm.intel.com with ESMTP; 09 Nov 2023 10:28:33 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 6B07876D; Thu, 9 Nov 2023 20:28:32 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Herbert Xu , Mario Limonciello , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Hans de Goede Subject: [PATCH v2 03/12] i2c: designware: Drop return value from i2c_dw_acpi_configure() Date: Thu, 9 Nov 2023 20:19:13 +0200 Message-ID: <20231109182823.3531846-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1996.gbec44491f096 In-Reply-To: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> References: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org i2c_dw_acpi_configure() is called without checking of the returned value, hence just drop it by converting to void. Signed-off-by: Andy Shevchenko Reviewed-by: Andi Shyti --- drivers/i2c/busses/i2c-designware-common.c | 4 +--- drivers/i2c/busses/i2c-designware-core.h | 4 ++-- 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index affcfb243f0f..8d2223d164e3 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -255,7 +255,7 @@ static void i2c_dw_acpi_params(struct device *device, char method[], kfree(buf.pointer); } -int i2c_dw_acpi_configure(struct device *device) +void i2c_dw_acpi_configure(struct device *device) { struct dw_i2c_dev *dev = dev_get_drvdata(device); struct i2c_timings *t = &dev->timings; @@ -285,8 +285,6 @@ int i2c_dw_acpi_configure(struct device *device) dev->sda_hold_time = fs_ht; break; } - - return 0; } EXPORT_SYMBOL_GPL(i2c_dw_acpi_configure); diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index a7f6f3eafad7..f4dc08139624 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -397,7 +397,7 @@ int i2c_dw_validate_speed(struct dw_i2c_dev *dev); void i2c_dw_adjust_bus_speed(struct dw_i2c_dev *dev); #if IS_ENABLED(CONFIG_ACPI) -int i2c_dw_acpi_configure(struct device *device); +void i2c_dw_acpi_configure(struct device *device); #else -static inline int i2c_dw_acpi_configure(struct device *device) { return -ENODEV; } +static inline void i2c_dw_acpi_configure(struct device *device) { } #endif From patchwork Thu Nov 9 18:19:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862201 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=XkGcdTDC; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; 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Thu, 9 Nov 2023 20:28:32 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Herbert Xu , Mario Limonciello , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Hans de Goede Subject: [PATCH v2 04/12] i2c: designware: Drop return value from dw_i2c_of_configure() Date: Thu, 9 Nov 2023 20:19:14 +0200 Message-ID: <20231109182823.3531846-5-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1996.gbec44491f096 In-Reply-To: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> References: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org dw_i2c_of_configure() is called without checking of the returned value, hence just drop it by converting to void. Signed-off-by: Andy Shevchenko Reviewed-by: Andi Shyti --- drivers/i2c/busses/i2c-designware-platdrv.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 7d960d3161c0..af772a2c7fb6 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -110,7 +110,7 @@ static int mscc_twi_set_sda_hold_time(struct dw_i2c_dev *dev) return 0; } -static int dw_i2c_of_configure(struct platform_device *pdev) +static void dw_i2c_of_configure(struct platform_device *pdev) { struct dw_i2c_dev *dev = platform_get_drvdata(pdev); @@ -123,8 +123,6 @@ static int dw_i2c_of_configure(struct platform_device *pdev) default: break; } - - return 0; } #else static int bt1_i2c_request_regs(struct dw_i2c_dev *dev) @@ -132,9 +130,8 @@ static int bt1_i2c_request_regs(struct dw_i2c_dev *dev) return -ENODEV; } -static inline int dw_i2c_of_configure(struct platform_device *pdev) +static inline void dw_i2c_of_configure(struct platform_device *pdev) { - return -ENODEV; } #endif From patchwork Thu Nov 9 18:19:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862200 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=JRTsvz5m; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4SR9Sq6DC5z1yQK for ; Fri, 10 Nov 2023 05:28:43 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345030AbjKIS2o (ORCPT ); Thu, 9 Nov 2023 13:28:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33402 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345014AbjKIS2m (ORCPT ); Thu, 9 Nov 2023 13:28:42 -0500 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7ED3A3C05; Thu, 9 Nov 2023 10:28:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699554520; x=1731090520; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=7CmFR+naMyItEiHSLEGMk+csTHhFMkqMImr3uUC48S8=; b=JRTsvz5mTphTz4QiyFz3xkRpAC7SZoSWTjvZV5FG6l7CVQqIB6aoP/cM LhFtiZYjKBY0uJzYqWaaOSv8nAcAhON04uy++FsFWUsZzu4ZUm2dUb6H3 /49qhfJXeOz1KEQ0KjOLvPZqUVAacxIMgmLnEIBBCri0qgTaemkso4uBp 4I7IHkWppEYmIl8P7SDfZDArcsryb0zjMbQFMFN57QzVkO21UepK+2oo/ GgWKU6xeBvYh0cHAqCca/S3mi7x4fELGWPgTVUsh6OkpK5dFPh0+WRO4E hXwxvqDf4DiBZVy/1iKWiC2wriB2LV1oqaRdU26kGKp44h4TYmVldo9YW g==; X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="375088690" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="375088690" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2023 10:28:39 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="767086845" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="767086845" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga007.fm.intel.com with ESMTP; 09 Nov 2023 10:28:37 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 8821E76F; Thu, 9 Nov 2023 20:28:32 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Herbert Xu , Mario Limonciello , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Hans de Goede Subject: [PATCH v2 05/12] i2c: designware: Rename dw_i2c_of_configure() -> i2c_dw_of_configure() Date: Thu, 9 Nov 2023 20:19:15 +0200 Message-ID: <20231109182823.3531846-6-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1996.gbec44491f096 In-Reply-To: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> References: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org For the sake of consistency, rename dw_i2c_of_configure() and change its parameter to be aligned with the i2c_dw_acpi_configure(). Signed-off-by: Andy Shevchenko Reviewed-by: Andi Shyti --- drivers/i2c/busses/i2c-designware-platdrv.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index af772a2c7fb6..c55fff3df8ca 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -110,9 +110,10 @@ static int mscc_twi_set_sda_hold_time(struct dw_i2c_dev *dev) return 0; } -static void dw_i2c_of_configure(struct platform_device *pdev) +static void i2c_dw_of_configure(struct device *device) { - struct dw_i2c_dev *dev = platform_get_drvdata(pdev); + struct platform_device *pdev = to_platform_device(device); + struct dw_i2c_dev *dev = dev_get_drvdata(device); switch (dev->flags & MODEL_MASK) { case MODEL_MSCC_OCELOT: @@ -130,7 +131,7 @@ static int bt1_i2c_request_regs(struct dw_i2c_dev *dev) return -ENODEV; } -static inline void dw_i2c_of_configure(struct platform_device *pdev) +static inline void i2c_dw_of_configure(struct device *device) { } #endif @@ -279,7 +280,7 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) i2c_dw_adjust_bus_speed(dev); if (pdev->dev.of_node) - dw_i2c_of_configure(pdev); + i2c_dw_of_configure(&pdev->dev); if (has_acpi_companion(&pdev->dev)) i2c_dw_acpi_configure(&pdev->dev); From patchwork Thu Nov 9 18:19:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862206 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=RTxAEsi+; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4SR9T55D31z1yRS for ; Fri, 10 Nov 2023 05:28:57 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345060AbjKIS2v (ORCPT ); Thu, 9 Nov 2023 13:28:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33432 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345019AbjKIS2n (ORCPT ); Thu, 9 Nov 2023 13:28:43 -0500 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2730C3C0C; Thu, 9 Nov 2023 10:28:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699554521; x=1731090521; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=YYYRkxf0rpg1oR/toNL6iopQD8fmDjHNAbcYLrc1aE8=; b=RTxAEsi+u3255dQKGuHqhE6Ydfeegzp4JhAH1pkkEnWzVHgOJKXqFEku MvIv04GQn+8XQHMSQOwkUMOcamxPyl5+DlycKg7ZHp41hWXceiiY6Zudo 95LEw95QWy26teU8r+wKlPeLg+nEwDNAzDc0XYUAYTnUh3aoyw66xC8sk touWQL0mlN3JUTcE/S3+Vpe76aZwfVbUjdTxg4WiUw6TfVvk2mTK9+rd5 chNKLGI3NspYuX/U1c2zX6q2OBFvEqm1usnV/s+w8inui74ApCLSR960L eMPaYBWWJZP0zCg30LkznQZ4gHq8Siu5AOMGaB/Lek561JO+oxpTSXs5B A==; X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="389853925" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="389853925" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2023 10:28:40 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="936938988" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="936938988" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga005.jf.intel.com with ESMTP; 09 Nov 2023 10:28:37 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 9AF9B7E7; Thu, 9 Nov 2023 20:28:32 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Herbert Xu , Mario Limonciello , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Hans de Goede Subject: [PATCH v2 06/12] i2c: designware: Consolidate firmware parsing and configuring code Date: Thu, 9 Nov 2023 20:19:16 +0200 Message-ID: <20231109182823.3531846-7-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1996.gbec44491f096 In-Reply-To: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> References: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org We have the same code flows in the PCI and plaform drivers. Moreover, the flow requires the common code to export a few functions. Instead, consolidate that flow under new function called i2c_dw_fw_parse_and_configure() and drop unneeded exports. Reviewed-by: Andi Shyti Reviewed-by: Mario Limonciello Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-common.c | 68 +++++++++++++++++++-- drivers/i2c/busses/i2c-designware-core.h | 9 +-- drivers/i2c/busses/i2c-designware-pcidrv.c | 11 +--- drivers/i2c/busses/i2c-designware-platdrv.c | 48 +-------------- 4 files changed, 66 insertions(+), 70 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index 8d2223d164e3..a5cae814a9c2 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -188,7 +189,7 @@ static const u32 supported_speeds[] = { I2C_MAX_STANDARD_MODE_FREQ, }; -int i2c_dw_validate_speed(struct dw_i2c_dev *dev) +static int i2c_dw_validate_speed(struct dw_i2c_dev *dev) { struct i2c_timings *t = &dev->timings; unsigned int i; @@ -208,7 +209,44 @@ int i2c_dw_validate_speed(struct dw_i2c_dev *dev) return -EINVAL; } -EXPORT_SYMBOL_GPL(i2c_dw_validate_speed); + +#ifdef CONFIG_OF + +#include + +#define MSCC_ICPU_CFG_TWI_DELAY 0x0 +#define MSCC_ICPU_CFG_TWI_DELAY_ENABLE BIT(0) +#define MSCC_ICPU_CFG_TWI_SPIKE_FILTER 0x4 + +static int mscc_twi_set_sda_hold_time(struct dw_i2c_dev *dev) +{ + writel((dev->sda_hold_time << 1) | MSCC_ICPU_CFG_TWI_DELAY_ENABLE, + dev->ext + MSCC_ICPU_CFG_TWI_DELAY); + + return 0; +} + +static void i2c_dw_of_configure(struct device *device) +{ + struct platform_device *pdev = to_platform_device(device); + struct dw_i2c_dev *dev = dev_get_drvdata(device); + + switch (dev->flags & MODEL_MASK) { + case MODEL_MSCC_OCELOT: + dev->ext = devm_platform_ioremap_resource(pdev, 1); + if (!IS_ERR(dev->ext)) + dev->set_sda_hold_time = mscc_twi_set_sda_hold_time; + break; + default: + break; + } +} + +#else /* CONFIG_OF */ + +static inline void i2c_dw_of_configure(struct device *device) { } + +#endif /* CONFIG_OF */ #ifdef CONFIG_ACPI @@ -255,7 +293,7 @@ static void i2c_dw_acpi_params(struct device *device, char method[], kfree(buf.pointer); } -void i2c_dw_acpi_configure(struct device *device) +static void i2c_dw_acpi_configure(struct device *device) { struct dw_i2c_dev *dev = dev_get_drvdata(device); struct i2c_timings *t = &dev->timings; @@ -286,7 +324,6 @@ void i2c_dw_acpi_configure(struct device *device) break; } } -EXPORT_SYMBOL_GPL(i2c_dw_acpi_configure); static u32 i2c_dw_acpi_round_bus_speed(struct device *device) { @@ -308,11 +345,13 @@ static u32 i2c_dw_acpi_round_bus_speed(struct device *device) #else /* CONFIG_ACPI */ +static inline void i2c_dw_acpi_configure(struct device *device) { } + static inline u32 i2c_dw_acpi_round_bus_speed(struct device *device) { return 0; } #endif /* CONFIG_ACPI */ -void i2c_dw_adjust_bus_speed(struct dw_i2c_dev *dev) +static void i2c_dw_adjust_bus_speed(struct dw_i2c_dev *dev) { u32 acpi_speed = i2c_dw_acpi_round_bus_speed(dev->dev); struct i2c_timings *t = &dev->timings; @@ -328,7 +367,24 @@ void i2c_dw_adjust_bus_speed(struct dw_i2c_dev *dev) else t->bus_freq_hz = I2C_MAX_FAST_MODE_FREQ; } -EXPORT_SYMBOL_GPL(i2c_dw_adjust_bus_speed); + +int i2c_dw_fw_parse_and_configure(struct dw_i2c_dev *dev) +{ + struct i2c_timings *t = &dev->timings; + struct device *device = dev->dev; + + i2c_parse_fw_timings(device, t, false); + + i2c_dw_adjust_bus_speed(dev); + + if (device->of_node) + i2c_dw_of_configure(device); + if (has_acpi_companion(device)) + i2c_dw_acpi_configure(device); + + return i2c_dw_validate_speed(dev); +} +EXPORT_SYMBOL_GPL(i2c_dw_fw_parse_and_configure); u32 i2c_dw_scl_hcnt(u32 ic_clk, u32 tSYMBOL, u32 tf, int cond, int offset) { diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index f4dc08139624..a2731179a42b 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -393,11 +393,4 @@ int i2c_dw_baytrail_probe_lock_support(struct dw_i2c_dev *dev); int i2c_dw_amdpsp_probe_lock_support(struct dw_i2c_dev *dev); #endif -int i2c_dw_validate_speed(struct dw_i2c_dev *dev); -void i2c_dw_adjust_bus_speed(struct dw_i2c_dev *dev); - -#if IS_ENABLED(CONFIG_ACPI) -void i2c_dw_acpi_configure(struct device *device); -#else -static inline void i2c_dw_acpi_configure(struct device *device) { } -#endif +int i2c_dw_fw_parse_and_configure(struct dw_i2c_dev *dev); diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index bfafebecf680..2e6c7bfb5bf7 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -253,7 +253,6 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, int r; struct dw_pci_controller *controller; struct dw_scl_sda_cfg *cfg; - struct i2c_timings *t; if (id->driver_data >= ARRAY_SIZE(dw_pci_controllers)) return dev_err_probe(&pdev->dev, -EINVAL, @@ -288,9 +287,6 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, dev->irq = pci_irq_vector(pdev, 0); dev->flags |= controller->flags; - t = &dev->timings; - i2c_parse_fw_timings(&pdev->dev, t, false); - pci_set_drvdata(pdev, dev); if (controller->setup) { @@ -301,12 +297,7 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev, } } - i2c_dw_adjust_bus_speed(dev); - - if (has_acpi_companion(&pdev->dev)) - i2c_dw_acpi_configure(&pdev->dev); - - r = i2c_dw_validate_speed(dev); + r = i2c_dw_fw_parse_and_configure(dev); if (r) { pci_free_irq_vectors(pdev); return r; diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index c55fff3df8ca..0b6d6f2b6198 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include @@ -97,43 +96,11 @@ static int bt1_i2c_request_regs(struct dw_i2c_dev *dev) dev->map = devm_regmap_init(dev->dev, NULL, dev, &bt1_i2c_cfg); return PTR_ERR_OR_ZERO(dev->map); } - -#define MSCC_ICPU_CFG_TWI_DELAY 0x0 -#define MSCC_ICPU_CFG_TWI_DELAY_ENABLE BIT(0) -#define MSCC_ICPU_CFG_TWI_SPIKE_FILTER 0x4 - -static int mscc_twi_set_sda_hold_time(struct dw_i2c_dev *dev) -{ - writel((dev->sda_hold_time << 1) | MSCC_ICPU_CFG_TWI_DELAY_ENABLE, - dev->ext + MSCC_ICPU_CFG_TWI_DELAY); - - return 0; -} - -static void i2c_dw_of_configure(struct device *device) -{ - struct platform_device *pdev = to_platform_device(device); - struct dw_i2c_dev *dev = dev_get_drvdata(device); - - switch (dev->flags & MODEL_MASK) { - case MODEL_MSCC_OCELOT: - dev->ext = devm_platform_ioremap_resource(pdev, 1); - if (!IS_ERR(dev->ext)) - dev->set_sda_hold_time = mscc_twi_set_sda_hold_time; - break; - default: - break; - } -} #else static int bt1_i2c_request_regs(struct dw_i2c_dev *dev) { return -ENODEV; } - -static inline void i2c_dw_of_configure(struct device *device) -{ -} #endif static int txgbe_i2c_request_regs(struct dw_i2c_dev *dev) @@ -245,7 +212,6 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) { struct i2c_adapter *adap; struct dw_i2c_dev *dev; - struct i2c_timings *t; int irq, ret; irq = platform_get_irq(pdev, 0); @@ -274,18 +240,7 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) reset_control_deassert(dev->rst); - t = &dev->timings; - i2c_parse_fw_timings(&pdev->dev, t, false); - - i2c_dw_adjust_bus_speed(dev); - - if (pdev->dev.of_node) - i2c_dw_of_configure(&pdev->dev); - - if (has_acpi_companion(&pdev->dev)) - i2c_dw_acpi_configure(&pdev->dev); - - ret = i2c_dw_validate_speed(dev); + ret = i2c_dw_fw_parse_and_configure(dev); if (ret) goto exit_reset; @@ -313,6 +268,7 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) goto exit_reset; if (dev->clk) { + struct i2c_timings *t = &dev->timings; u64 clk_khz; dev->get_clk_rate_khz = i2c_dw_get_clk_rate_khz; From patchwork Thu Nov 9 18:19:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862202 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=jR8e/s9o; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; 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09 Nov 2023 10:28:37 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id AD46B7F1; Thu, 9 Nov 2023 20:28:32 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Herbert Xu , Mario Limonciello , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Hans de Goede Subject: [PATCH v2 07/12] i2c: desingware: Unify the firmware type checks Date: Thu, 9 Nov 2023 20:19:17 +0200 Message-ID: <20231109182823.3531846-8-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1996.gbec44491f096 In-Reply-To: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> References: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Instead of asymmetrical checks for the firmware type use the is_*_node() calls. Reviewed-by: Andi Shyti Reviewed-by: Mario Limonciello Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-common.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index a5cae814a9c2..49d9d5f83071 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -372,14 +373,15 @@ int i2c_dw_fw_parse_and_configure(struct dw_i2c_dev *dev) { struct i2c_timings *t = &dev->timings; struct device *device = dev->dev; + struct fwnode_handle *fwnode = dev_fwnode(device); i2c_parse_fw_timings(device, t, false); i2c_dw_adjust_bus_speed(dev); - if (device->of_node) + if (is_of_node(fwnode)) i2c_dw_of_configure(device); - if (has_acpi_companion(device)) + else if (is_acpi_node(fwnode)) i2c_dw_acpi_configure(device); return i2c_dw_validate_speed(dev); From patchwork Thu Nov 9 18:19:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862203 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=P6/L9jaj; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4SR9Sr75c6z1yRW for ; Fri, 10 Nov 2023 05:28:44 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345035AbjKIS2p (ORCPT ); Thu, 9 Nov 2023 13:28:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33422 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345017AbjKIS2n (ORCPT ); Thu, 9 Nov 2023 13:28:43 -0500 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BBC0D3C07; Thu, 9 Nov 2023 10:28:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699554520; x=1731090520; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8APH4P4NEIbrdj9fSHnpfr/pQLSK5n0sPVRfXsOmxK4=; b=P6/L9jaj4Nj9MdAXNoXvK+x/jPgOsk13d0UMjOCImgcAP1xS+t9KSRPR 6kPxmODKmmEhofZ8CZUQ13q4/9pZGLYnPdIwZgpEugRWIiX7sMJNKhrzm +OX8LRPyeeJ8IhBa9qVXw0Wg/GhmyYqIiJ3Wp+elZ7aOrNDFuwdTbKlhI r/sF2P5146jkrIEiEtNkcX2Cl2pfpy1+qR4glE4qE3NcmvDT+qszqw8L7 Dlc1qV+vFgD0U2RfwmaMnpfdDSTqaYY9PdGE9TLmSVDjlxVrIkU8s7dAY RajJu9WefVJLvca0TTCWY0uYZ3bUxCX+Np4Ht0kUytknmEWk4vqJqoOxl Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="375088697" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="375088697" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2023 10:28:40 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="767086846" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="767086846" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga007.fm.intel.com with ESMTP; 09 Nov 2023 10:28:37 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id B51D97C4; Thu, 9 Nov 2023 20:28:32 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Herbert Xu , Mario Limonciello , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Hans de Goede Subject: [PATCH v2 08/12] i2c: designware: Move exports to I2C_DW namespaces Date: Thu, 9 Nov 2023 20:19:18 +0200 Message-ID: <20231109182823.3531846-9-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1996.gbec44491f096 In-Reply-To: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> References: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Reduce scope of the I²C DesignWare driver exports to I2C_DW namespaces. This will prevent abuse of the symbols and clean up global namespace. Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-common.c | 2 ++ drivers/i2c/busses/i2c-designware-master.c | 3 +++ drivers/i2c/busses/i2c-designware-pcidrv.c | 2 ++ drivers/i2c/busses/i2c-designware-platdrv.c | 2 ++ drivers/i2c/busses/i2c-designware-slave.c | 3 +++ 5 files changed, 12 insertions(+) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index 49d9d5f83071..50cf4cbfeff3 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -28,6 +28,8 @@ #include #include +#define DEFAULT_SYMBOL_NAMESPACE I2C_DW_COMMON + #include "i2c-designware-core.h" static char *abort_sources[] = { diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index 85dbd0eb5392..0b6576d7f811 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -22,6 +22,8 @@ #include #include +#define DEFAULT_SYMBOL_NAMESPACE I2C_DW + #include "i2c-designware-core.h" #define AMD_TIMEOUT_MIN_US 25 @@ -1079,3 +1081,4 @@ EXPORT_SYMBOL_GPL(i2c_dw_probe_master); MODULE_DESCRIPTION("Synopsys DesignWare I2C bus master adapter"); MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(I2C_DW_COMMON); diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 2e6c7bfb5bf7..68c2e1a3a035 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -418,3 +418,5 @@ module_pci_driver(dw_i2c_driver); MODULE_AUTHOR("Baruch Siach "); MODULE_DESCRIPTION("Synopsys DesignWare PCI I2C bus adapter"); MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(I2C_DW); +MODULE_IMPORT_NS(I2C_DW_COMMON); diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 0b6d6f2b6198..92e9199a5fdb 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -464,3 +464,5 @@ module_exit(dw_i2c_exit_driver); MODULE_AUTHOR("Baruch Siach "); MODULE_DESCRIPTION("Synopsys DesignWare I2C bus adapter"); MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(I2C_DW); +MODULE_IMPORT_NS(I2C_DW_COMMON); diff --git a/drivers/i2c/busses/i2c-designware-slave.c b/drivers/i2c/busses/i2c-designware-slave.c index 2e079cf20bb5..70d183fa3bff 100644 --- a/drivers/i2c/busses/i2c-designware-slave.c +++ b/drivers/i2c/busses/i2c-designware-slave.c @@ -16,6 +16,8 @@ #include #include +#define DEFAULT_SYMBOL_NAMESPACE I2C_DW + #include "i2c-designware-core.h" static void i2c_dw_configure_fifo_slave(struct dw_i2c_dev *dev) @@ -279,3 +281,4 @@ EXPORT_SYMBOL_GPL(i2c_dw_probe_slave); MODULE_AUTHOR("Luis Oliveira "); MODULE_DESCRIPTION("Synopsys DesignWare I2C bus slave adapter"); MODULE_LICENSE("GPL v2"); +MODULE_IMPORT_NS(I2C_DW_COMMON); From patchwork Thu Nov 9 18:19:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862204 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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a="936938989" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="936938989" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga005.jf.intel.com with ESMTP; 09 Nov 2023 10:28:37 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id C9F2B81E; Thu, 9 Nov 2023 20:28:32 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Herbert Xu , Mario Limonciello , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Hans de Goede Subject: [PATCH v2 09/12] i2c: designware: Get rid of redundant 'else' Date: Thu, 9 Nov 2023 20:19:19 +0200 Message-ID: <20231109182823.3531846-10-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1996.gbec44491f096 In-Reply-To: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> References: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org In the snippets like the following if (...) return / goto / break / continue ...; else ... the 'else' is redundant. Get rid of it. Reviewed-by: Andi Shyti Reviewed-by: Mario Limonciello Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-common.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index 50cf4cbfeff3..4d7dc346e619 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -638,10 +638,10 @@ int i2c_dw_handle_tx_abort(struct dw_i2c_dev *dev) if (abort_source & DW_IC_TX_ARB_LOST) return -EAGAIN; - else if (abort_source & DW_IC_TX_ABRT_GCALL_READ) + if (abort_source & DW_IC_TX_ABRT_GCALL_READ) return -EINVAL; /* wrong msgs[] data */ - else - return -EIO; + + return -EIO; } int i2c_dw_set_fifo_size(struct dw_i2c_dev *dev) From patchwork Thu Nov 9 18:19:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862208 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=lSOL3Ne7; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4SR9T70rKPz1yRV for ; Fri, 10 Nov 2023 05:28:59 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345059AbjKIS27 (ORCPT ); Thu, 9 Nov 2023 13:28:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33468 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345022AbjKIS2o (ORCPT ); Thu, 9 Nov 2023 13:28:44 -0500 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 67BF43C11; Thu, 9 Nov 2023 10:28:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699554521; x=1731090521; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=J/3rNKPhtPGSbMQv1qpIa/vW5WBgEmTeFjTETFKBSGQ=; b=lSOL3Ne7pxeJa4NLTmbgqlXUbWwtssrtt00yXOSdmg0TFwm1Awi1NTyR wxZP4lHkRrq+A7+1AMtSoN/0TF3XNjd1FDOgcT8yIr9Bed/A7BGFE4eID 28jmUPHLdn+STYsS7mRcBSqshjomqY/L7OnN5Jj1pgUDJ2DyNNnpk/awY e6BB8UtW2Ij+n4/iPOq8Rpqn3dtxosoSCyi2EnJ73laT7+DzLkoZKuK13 rsWOMTL2rHFXjWAihW+Q/H426fmOgnWBBFhM7yZG7nn+V9NDfQ9Ur9DtX nYFRrPtfri6B0+nhAvFvg37RHYh8ktsqM/JX1cbyjbIYVZtkJFNiLq6U9 w==; X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="389853942" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="389853942" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2023 10:28:41 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="936938990" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="936938990" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga005.jf.intel.com with ESMTP; 09 Nov 2023 10:28:37 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id D0A25812; Thu, 9 Nov 2023 20:28:32 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Herbert Xu , Mario Limonciello , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Hans de Goede Subject: [PATCH v2 10/12] i2c: designware: Fix spelling and other issues in the comments Date: Thu, 9 Nov 2023 20:19:20 +0200 Message-ID: <20231109182823.3531846-11-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1996.gbec44491f096 In-Reply-To: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> References: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Fix spelling and other issues, such as kernel-doc reported about, in the comments. Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-amdpsp.c | 10 +++++----- drivers/i2c/busses/i2c-designware-common.c | 8 +++++--- drivers/i2c/busses/i2c-designware-core.h | 10 +++++----- drivers/i2c/busses/i2c-designware-master.c | 15 +++++++++------ drivers/i2c/busses/i2c-designware-slave.c | 6 ++++-- 5 files changed, 28 insertions(+), 21 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-amdpsp.c b/drivers/i2c/busses/i2c-designware-amdpsp.c index 63454b06e5da..8fbd2a10c31a 100644 --- a/drivers/i2c/busses/i2c-designware-amdpsp.c +++ b/drivers/i2c/busses/i2c-designware-amdpsp.c @@ -155,7 +155,7 @@ static void psp_release_i2c_bus_deferred(struct work_struct *work) /* * If there is any pending transaction, cannot release the bus here. - * psp_release_i2c_bus will take care of this later. + * psp_release_i2c_bus() will take care of this later. */ if (psp_i2c_access_count) goto cleanup; @@ -210,12 +210,12 @@ static void psp_release_i2c_bus(void) { mutex_lock(&psp_i2c_access_mutex); - /* Return early if mailbox was malfunctional */ + /* Return early if mailbox was malfunctioned */ if (psp_i2c_mbox_fail) goto cleanup; /* - * If we are last owner of PSP semaphore, need to release aribtration + * If we are last owner of PSP semaphore, need to release arbitration * via mailbox. */ psp_i2c_access_count--; @@ -235,9 +235,9 @@ static void psp_release_i2c_bus(void) /* * Locking methods are based on the default implementation from - * drivers/i2c/i2c-core-base.c, but with psp acquire and release operations + * drivers/i2c/i2c-core-base.c, but with PSP acquire and release operations * added. With this in place we can ensure that i2c clients on the bus shared - * with psp are able to lock HW access to the bus for arbitrary number of + * with PSP are able to lock HW access to the bus for arbitrary number of * operations - that is e.g. write-wait-read. */ static void i2c_adapter_dw_psp_lock_bus(struct i2c_adapter *adapter, diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index 4d7dc346e619..5d4e39663438 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -126,6 +126,8 @@ static int dw_reg_write_word(void *context, unsigned int reg, unsigned int val) * Autodetects needed register access mode and creates the regmap with * corresponding read/write callbacks. This must be called before doing any * other register access. + * + * Return: 0 on success, or negative errno otherwise. */ int i2c_dw_init_regmap(struct dw_i2c_dev *dev) { @@ -173,7 +175,7 @@ int i2c_dw_init_regmap(struct dw_i2c_dev *dev) /* * Note we'll check the return value of the regmap IO accessors only * at the probe stage. The rest of the code won't do this because - * basically we have MMIO-based regmap so non of the read/write methods + * basically we have MMIO-based regmap, so none of the read/write methods * can fail. */ dev->map = devm_regmap_init(dev->dev, NULL, dev, &map_cfg); @@ -335,7 +337,7 @@ static u32 i2c_dw_acpi_round_bus_speed(struct device *device) acpi_speed = i2c_acpi_find_bus_speed(device); /* - * Some DSTDs use a non standard speed, round down to the lowest + * Some DSDTs use a non standard speed, round down to the lowest * standard speed. */ for (i = 0; i < ARRAY_SIZE(supported_speeds); i++) { @@ -531,7 +533,7 @@ void __i2c_dw_disable(struct dw_i2c_dev *dev) /* * Wait 10 times the signaling period of the highest I2C - * transfer supported by the driver (for 400KHz this is + * transfer supported by the driver (for 400kHz this is * 25us) as described in the DesignWare I2C databook. */ usleep_range(25, 250); diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index a2731179a42b..9f8e5bf61ec0 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -142,10 +142,10 @@ #define DW_IC_SLAVE 1 /* - * Hardware abort codes from the DW_IC_TX_ABRT_SOURCE register + * Hardware abort codes from the DW_IC_TX_ABRT_SOURCE register. * - * Only expected abort codes are listed here - * refer to the datasheet for the full list + * Only expected abort codes are listed here, + * refer to the datasheet for the full list. */ #define ABRT_7B_ADDR_NOACK 0 #define ABRT_10ADDR1_NOACK 1 @@ -200,7 +200,7 @@ struct reset_control; * @rst: optional reset for the controller * @slave: represent an I2C slave device * @get_clk_rate_khz: callback to retrieve IP specific bus speed - * @cmd_err: run time hadware error code + * @cmd_err: run time hardware error code * @msgs: points to an array of messages currently being transferred * @msgs_num: the number of elements in msgs * @msg_write_idx: the element index of the current tx message in the msgs array @@ -235,7 +235,7 @@ struct reset_control; * @release_lock: function to release a hardware lock on the bus * @semaphore_idx: Index of table with semaphore type attached to the bus. It's * -1 if there is no semaphore. - * @shared_with_punit: true if this bus is shared with the SoCs PUNIT + * @shared_with_punit: true if this bus is shared with the SoC's PUNIT * @disable: function to disable the controller * @init: function to initialize the I2C hardware * @set_sda_hold_time: callback to retrieve IP specific SDA hold timing diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index 0b6576d7f811..9d06dd7ffe37 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -168,12 +168,14 @@ static int i2c_dw_set_timings_master(struct dw_i2c_dev *dev) } /** - * i2c_dw_init_master() - Initialize the designware I2C master hardware + * i2c_dw_init_master() - Initialize the DesignWare I2C master hardware * @dev: device private data * * This functions configures and enables the I2C master. * This function is called during I2C init function, and in case of timeout at * run time. + * + * Return: 0 on success, or negative errno otherwise. */ static int i2c_dw_init_master(struct dw_i2c_dev *dev) { @@ -314,7 +316,7 @@ static int amd_i2c_dw_xfer_quirk(struct i2c_adapter *adap, struct i2c_msg *msgs, /* * Initiate the i2c read/write transaction of buffer length, * and poll for bus busy status. For the last message transfer, - * update the command with stopbit enable. + * update the command with stop bit enable. */ for (msg_itr_lmt = buf_len; msg_itr_lmt > 0; msg_itr_lmt--) { if (msg_wrt_idx == num_msgs - 1 && msg_itr_lmt == 1) @@ -421,7 +423,7 @@ static int txgbe_i2c_dw_xfer_quirk(struct i2c_adapter *adap, struct i2c_msg *msg /* * Initiate (and continue) low level master read/write transaction. - * This function is only called from i2c_dw_isr, and pumping i2c_msg + * This function is only called from i2c_dw_isr(), and pumping i2c_msg * messages into the tx buffer. Even if the size of i2c_msg data is * longer than the size of the tx buffer, it handles everything. */ @@ -459,7 +461,8 @@ i2c_dw_xfer_msg(struct dw_i2c_dev *dev) buf = msgs[dev->msg_write_idx].buf; buf_len = msgs[dev->msg_write_idx].len; - /* If both IC_EMPTYFIFO_HOLD_MASTER_EN and + /* + * If both IC_EMPTYFIFO_HOLD_MASTER_EN and * IC_RESTART_EN are set, we must manually * set restart bit between messages. */ @@ -949,7 +952,7 @@ static int i2c_dw_init_recovery_info(struct dw_i2c_dev *dev) rinfo->unprepare_recovery = i2c_dw_unprepare_recovery; adap->bus_recovery_info = rinfo; - dev_info(dev->dev, "running with gpio recovery mode! scl%s", + dev_info(dev->dev, "running with GPIO recovery mode! scl%s", rinfo->sda_gpiod ? ",sda" : ""); return 0; @@ -1054,7 +1057,7 @@ int i2c_dw_probe_master(struct dw_i2c_dev *dev) ret = devm_request_irq(dev->dev, dev->irq, i2c_dw_isr, irq_flags, dev_name(dev->dev), dev); if (ret) { - dev_err(dev->dev, "failure requesting irq %i: %d\n", + dev_err(dev->dev, "failure requesting IRQ %i: %d\n", dev->irq, ret); return ret; } diff --git a/drivers/i2c/busses/i2c-designware-slave.c b/drivers/i2c/busses/i2c-designware-slave.c index 70d183fa3bff..0fa3a3d7a724 100644 --- a/drivers/i2c/busses/i2c-designware-slave.c +++ b/drivers/i2c/busses/i2c-designware-slave.c @@ -32,12 +32,14 @@ static void i2c_dw_configure_fifo_slave(struct dw_i2c_dev *dev) } /** - * i2c_dw_init_slave() - Initialize the designware i2c slave hardware + * i2c_dw_init_slave() - Initialize the DesignWare i2c slave hardware * @dev: device private data * * This function configures and enables the I2C in slave mode. * This function is called during I2C init function, and in case of timeout at * run time. + * + * Return: 0 on success, or negative errno otherwise. */ static int i2c_dw_init_slave(struct dw_i2c_dev *dev) { @@ -265,7 +267,7 @@ int i2c_dw_probe_slave(struct dw_i2c_dev *dev) ret = devm_request_irq(dev->dev, dev->irq, i2c_dw_isr_slave, IRQF_SHARED, dev_name(dev->dev), dev); if (ret) { - dev_err(dev->dev, "failure requesting irq %i: %d\n", + dev_err(dev->dev, "failure requesting IRQ %i: %d\n", dev->irq, ret); return ret; } From patchwork Thu Nov 9 18:19:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862207 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=PI3ARvF1; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4SR9T60V44z1yRT for ; Fri, 10 Nov 2023 05:28:58 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345049AbjKIS26 (ORCPT ); Thu, 9 Nov 2023 13:28:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33466 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345023AbjKIS2o (ORCPT ); Thu, 9 Nov 2023 13:28:44 -0500 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5F5A83C10; Thu, 9 Nov 2023 10:28:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699554521; x=1731090521; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Op42QzcX29hTZKyxHgP0Z66kpzENonKgZWt0vi7oOwE=; b=PI3ARvF1I8CIboEmFgiga+3aH6RIxT6IYpDIzkOHPFk4g+2Zh9PlxMnT y7FNTlQJb+7Qy+rhoexP/I1QjQpfFQONQhdL77JQ4rSzsKPxg3nK2MjMO mTOzfZOxuFeKah6n0Hcb5ZOL3mu+TD0Qno38sSJ8r/w1+DDP8gFoya7HJ rO7NkPReVkWqFjk7R3+VHaBgTkFTWjuhzKWqngpwEJOHM5kDf+AiQtDVk I39Hhp1f08tqVawe0iE2FHApCg5evjutApXj4A1CLrJbtWwbbUW8aENiw miwKUotQHZ5W5OuuZr4kJHle9UAoFsiRK2FQyJfO+T1R1l4PyVVOC5vk+ A==; X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="375088706" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="375088706" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2023 10:28:40 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="767086850" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="767086850" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga007.fm.intel.com with ESMTP; 09 Nov 2023 10:28:37 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id DE3E9823; Thu, 9 Nov 2023 20:28:32 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Herbert Xu , Mario Limonciello , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Hans de Goede Subject: [PATCH v2 11/12] i2c: designware: Remove ->disable() callback Date: Thu, 9 Nov 2023 20:19:21 +0200 Message-ID: <20231109182823.3531846-12-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1996.gbec44491f096 In-Reply-To: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> References: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Commit 90312351fd1e ("i2c: designware: MASTER mode as separated driver") introduced ->disable() callback but there is no real use for it. Both i2c-designware-master.c and i2c-designware-slave.c set it to the same i2c_dw_disable() and scope is inside the same kernel module. That said, replace the callback by explicitly calling the i2c_dw_disable(). Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-core.h | 2 -- drivers/i2c/busses/i2c-designware-master.c | 1 - drivers/i2c/busses/i2c-designware-pcidrv.c | 5 +++-- drivers/i2c/busses/i2c-designware-platdrv.c | 4 ++-- drivers/i2c/busses/i2c-designware-slave.c | 1 - 5 files changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index 9f8e5bf61ec0..a22f2cd5faf8 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -236,7 +236,6 @@ struct reset_control; * @semaphore_idx: Index of table with semaphore type attached to the bus. It's * -1 if there is no semaphore. * @shared_with_punit: true if this bus is shared with the SoC's PUNIT - * @disable: function to disable the controller * @init: function to initialize the I2C hardware * @set_sda_hold_time: callback to retrieve IP specific SDA hold timing * @mode: operation mode - DW_IC_MASTER or DW_IC_SLAVE @@ -293,7 +292,6 @@ struct dw_i2c_dev { void (*release_lock)(void); int semaphore_idx; bool shared_with_punit; - void (*disable)(struct dw_i2c_dev *dev); int (*init)(struct dw_i2c_dev *dev); int (*set_sda_hold_time)(struct dw_i2c_dev *dev); int mode; diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index 9d06dd7ffe37..4ef4160db01f 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -993,7 +993,6 @@ int i2c_dw_probe_master(struct dw_i2c_dev *dev) init_completion(&dev->cmd_complete); dev->init = i2c_dw_init_master; - dev->disable = i2c_dw_disable; ret = i2c_dw_init_regmap(dev); if (ret) diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index 68c2e1a3a035..b8bf4ae4fab1 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -198,7 +198,7 @@ static int __maybe_unused i2c_dw_pci_runtime_suspend(struct device *dev) { struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - i_dev->disable(i_dev); + i2c_dw_disable(i_dev); return 0; } @@ -345,7 +345,8 @@ static void i2c_dw_pci_remove(struct pci_dev *pdev) { struct dw_i2c_dev *dev = pci_get_drvdata(pdev); - dev->disable(dev); + i2c_dw_disable(dev); + pm_runtime_forbid(&pdev->dev); pm_runtime_get_noresume(&pdev->dev); diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 92e9199a5fdb..d7c39ef16a32 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -331,7 +331,7 @@ static void dw_i2c_plat_remove(struct platform_device *pdev) i2c_del_adapter(&dev->adapter); - dev->disable(dev); + i2c_dw_disable(dev); pm_runtime_dont_use_autosuspend(&pdev->dev); pm_runtime_put_sync(&pdev->dev); @@ -360,7 +360,7 @@ static int dw_i2c_plat_runtime_suspend(struct device *dev) if (i_dev->shared_with_punit) return 0; - i_dev->disable(i_dev); + i2c_dw_disable(i_dev); i2c_dw_prepare_clk(i_dev, false); return 0; diff --git a/drivers/i2c/busses/i2c-designware-slave.c b/drivers/i2c/busses/i2c-designware-slave.c index 0fa3a3d7a724..8921f6d49129 100644 --- a/drivers/i2c/busses/i2c-designware-slave.c +++ b/drivers/i2c/busses/i2c-designware-slave.c @@ -239,7 +239,6 @@ int i2c_dw_probe_slave(struct dw_i2c_dev *dev) int ret; dev->init = i2c_dw_init_slave; - dev->disable = i2c_dw_disable; ret = i2c_dw_init_regmap(dev); if (ret) From patchwork Thu Nov 9 18:19:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1862205 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=RGmsllt1; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4SR9T52r3xz1yRQ for ; Fri, 10 Nov 2023 05:28:57 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345015AbjKIS2v (ORCPT ); Thu, 9 Nov 2023 13:28:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33440 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345005AbjKIS2n (ORCPT ); Thu, 9 Nov 2023 13:28:43 -0500 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 31B753C0D; 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a="767086855" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="767086855" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga007.fm.intel.com with ESMTP; 09 Nov 2023 10:28:37 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id F1AA7845; Thu, 9 Nov 2023 20:28:32 +0200 (EET) From: Andy Shevchenko To: Jarkko Nikula , Herbert Xu , Mario Limonciello , Andy Shevchenko , Wolfram Sang , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Jan Dabros , Andi Shyti , Hans de Goede Subject: [PATCH v2 12/12] i2c: designware: Consolidate PM ops Date: Thu, 9 Nov 2023 20:19:22 +0200 Message-ID: <20231109182823.3531846-13-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1996.gbec44491f096 In-Reply-To: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> References: <20231109182823.3531846-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org We have the same (*) PM ops in the PCI and plaform drivers. Instead, consolidate that PM ops under exported variable and deduplicate them. *) With the subtle ACPI and P-Unit behaviour differences in PCI case. But this is not a problem as for ACPI we need to take care of the P-Unit semaphore anyway and calling PM ops for ACPI makes sense as it might provide specific operation regions in (however there are no known devices on market that are using it with PCI enabled I2C). Note, the clocks are not in use in the PCI case. Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-designware-common.c | 62 ++++++++++++++++++++ drivers/i2c/busses/i2c-designware-core.h | 4 +- drivers/i2c/busses/i2c-designware-pcidrv.c | 44 +------------- drivers/i2c/busses/i2c-designware-platdrv.c | 63 +-------------------- 4 files changed, 68 insertions(+), 105 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-common.c b/drivers/i2c/busses/i2c-designware-common.c index 5d4e39663438..c211693d760f 100644 --- a/drivers/i2c/busses/i2c-designware-common.c +++ b/drivers/i2c/busses/i2c-designware-common.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include @@ -714,5 +715,66 @@ void i2c_dw_disable(struct dw_i2c_dev *dev) i2c_dw_release_lock(dev); } +static int i2c_dw_prepare(struct device *device) +{ + /* + * If the ACPI companion device object is present for this device, + * it may be accessed during suspend and resume of other devices via + * I2C operation regions, so tell the PM core and middle layers to + * avoid skipping system suspend/resume callbacks for it in that case. + */ + return !has_acpi_companion(device); +} + +static int i2c_dw_runtime_suspend(struct device *device) +{ + struct dw_i2c_dev *dev = dev_get_drvdata(device); + + if (dev->shared_with_punit) + return 0; + + i2c_dw_disable(dev); + i2c_dw_prepare_clk(dev, false); + + return 0; +} + +static int i2c_dw_suspend(struct device *device) +{ + struct dw_i2c_dev *dev = dev_get_drvdata(device); + + i2c_mark_adapter_suspended(&dev->adapter); + + return i2c_dw_runtime_suspend(device); +} + +static int i2c_dw_runtime_resume(struct device *device) +{ + struct dw_i2c_dev *dev = dev_get_drvdata(device); + + if (!dev->shared_with_punit) + i2c_dw_prepare_clk(dev, true); + + dev->init(dev); + + return 0; +} + +static int i2c_dw_resume(struct device *device) +{ + struct dw_i2c_dev *dev = dev_get_drvdata(device); + + i2c_dw_runtime_resume(device); + i2c_mark_adapter_resumed(&dev->adapter); + + return 0; +} + +EXPORT_GPL_DEV_PM_OPS(i2c_dw_dev_pm_ops) = { + .prepare = pm_sleep_ptr(i2c_dw_prepare), + LATE_SYSTEM_SLEEP_PM_OPS(i2c_dw_suspend, i2c_dw_resume) + RUNTIME_PM_OPS(i2c_dw_runtime_suspend, i2c_dw_runtime_resume, NULL) +}; + MODULE_DESCRIPTION("Synopsys DesignWare I2C bus adapter core"); MODULE_LICENSE("GPL"); diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index a22f2cd5faf8..399b4304e215 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -335,7 +335,8 @@ int i2c_dw_wait_bus_not_busy(struct dw_i2c_dev *dev); int i2c_dw_handle_tx_abort(struct dw_i2c_dev *dev); int i2c_dw_set_fifo_size(struct dw_i2c_dev *dev); u32 i2c_dw_func(struct i2c_adapter *adap); -void i2c_dw_disable(struct dw_i2c_dev *dev); + +extern const struct dev_pm_ops i2c_dw_dev_pm_ops; static inline void __i2c_dw_enable(struct dw_i2c_dev *dev) { @@ -350,6 +351,7 @@ static inline void __i2c_dw_disable_nowait(struct dw_i2c_dev *dev) } void __i2c_dw_disable(struct dw_i2c_dev *dev); +void i2c_dw_disable(struct dw_i2c_dev *dev); extern void i2c_dw_configure_master(struct dw_i2c_dev *dev); extern int i2c_dw_probe_master(struct dw_i2c_dev *dev); diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c index b8bf4ae4fab1..afe85599ed1a 100644 --- a/drivers/i2c/busses/i2c-designware-pcidrv.c +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -194,47 +195,6 @@ static struct dw_pci_controller dw_pci_controllers[] = { }, }; -static int __maybe_unused i2c_dw_pci_runtime_suspend(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - i2c_dw_disable(i_dev); - return 0; -} - -static int __maybe_unused i2c_dw_pci_suspend(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - i2c_mark_adapter_suspended(&i_dev->adapter); - - return i2c_dw_pci_runtime_suspend(dev); -} - -static int __maybe_unused i2c_dw_pci_runtime_resume(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - return i_dev->init(i_dev); -} - -static int __maybe_unused i2c_dw_pci_resume(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - int ret; - - ret = i2c_dw_pci_runtime_resume(dev); - - i2c_mark_adapter_resumed(&i_dev->adapter); - - return ret; -} - -static const struct dev_pm_ops i2c_dw_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(i2c_dw_pci_suspend, i2c_dw_pci_resume) - SET_RUNTIME_PM_OPS(i2c_dw_pci_runtime_suspend, i2c_dw_pci_runtime_resume, NULL) -}; - static const struct property_entry dgpu_properties[] = { /* USB-C doesn't power the system */ PROPERTY_ENTRY_U8("scope", POWER_SUPPLY_SCOPE_DEVICE), @@ -411,7 +371,7 @@ static struct pci_driver dw_i2c_driver = { .probe = i2c_dw_pci_probe, .remove = i2c_dw_pci_remove, .driver = { - .pm = &i2c_dw_pm_ops, + .pm = pm_ptr(&i2c_dw_dev_pm_ops), }, }; module_pci_driver(dw_i2c_driver); diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index d7c39ef16a32..99498823563f 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -342,67 +342,6 @@ static void dw_i2c_plat_remove(struct platform_device *pdev) reset_control_assert(dev->rst); } -static int dw_i2c_plat_prepare(struct device *dev) -{ - /* - * If the ACPI companion device object is present for this device, it - * may be accessed during suspend and resume of other devices via I2C - * operation regions, so tell the PM core and middle layers to avoid - * skipping system suspend/resume callbacks for it in that case. - */ - return !has_acpi_companion(dev); -} - -static int dw_i2c_plat_runtime_suspend(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - if (i_dev->shared_with_punit) - return 0; - - i2c_dw_disable(i_dev); - i2c_dw_prepare_clk(i_dev, false); - - return 0; -} - -static int dw_i2c_plat_suspend(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - i2c_mark_adapter_suspended(&i_dev->adapter); - - return dw_i2c_plat_runtime_suspend(dev); -} - -static int dw_i2c_plat_runtime_resume(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - if (!i_dev->shared_with_punit) - i2c_dw_prepare_clk(i_dev, true); - - i_dev->init(i_dev); - - return 0; -} - -static int dw_i2c_plat_resume(struct device *dev) -{ - struct dw_i2c_dev *i_dev = dev_get_drvdata(dev); - - dw_i2c_plat_runtime_resume(dev); - i2c_mark_adapter_resumed(&i_dev->adapter); - - return 0; -} - -static const struct dev_pm_ops dw_i2c_dev_pm_ops = { - .prepare = pm_sleep_ptr(dw_i2c_plat_prepare), - LATE_SYSTEM_SLEEP_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume) - RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend, dw_i2c_plat_runtime_resume, NULL) -}; - static const struct of_device_id dw_i2c_of_match[] = { { .compatible = "snps,designware-i2c", }, { .compatible = "mscc,ocelot-i2c", .data = (void *)MODEL_MSCC_OCELOT }, @@ -444,7 +383,7 @@ static struct platform_driver dw_i2c_driver = { .name = "i2c_designware", .of_match_table = dw_i2c_of_match, .acpi_match_table = dw_i2c_acpi_match, - .pm = pm_ptr(&dw_i2c_dev_pm_ops), + .pm = pm_ptr(&i2c_dw_dev_pm_ops), }, .id_table = dw_i2c_platform_ids, };