From patchwork Mon May 31 19:49:42 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 450537 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B16FEC4709E for ; Mon, 31 May 2021 19:49:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 927556128A for ; Mon, 31 May 2021 19:49:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232064AbhEaTvW (ORCPT ); Mon, 31 May 2021 15:51:22 -0400 Received: from mga14.intel.com ([192.55.52.115]:39326 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231624AbhEaTvS (ORCPT ); Mon, 31 May 2021 15:51:18 -0400 IronPort-SDR: pa3cvLMOxdJSs/GYct9eK+swECJ5e4lk0T+2sJysaVEfyXB6NEmiUnq90uHl2bIjSlVdTVQtkL tmZuN9sBXekg== X-IronPort-AV: E=McAfee;i="6200,9189,10001"; a="203215209" X-IronPort-AV: E=Sophos;i="5.83,238,1616482800"; d="scan'208";a="203215209" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 May 2021 12:49:30 -0700 IronPort-SDR: o+p5JjvtZT6GahBTqKGHMK0fSLH3FVnQjA9jeNY6bjoZofTVwuWYV9q2ODK2oX44C//5aIO5FY CK37vW79+FkA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,238,1616482800"; d="scan'208";a="446696425" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga008.fm.intel.com with ESMTP; 31 May 2021 12:49:28 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 079C6F2; Mon, 31 May 2021 22:49:51 +0300 (EEST) From: Andy Shevchenko To: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Andy Shevchenko , Flavio Suligoi , Thierry Reding , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pwm@vger.kernel.org, linux-acpi@vger.kernel.org Cc: Jonathan Corbet , Lee Jones , "Rafael J. Wysocki" , Len Brown Subject: [PATCH v2 2/7] pwm: core: Always require PWM flags to be provided Date: Mon, 31 May 2021 22:49:42 +0300 Message-Id: <20210531194947.10770-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210531194947.10770-1-andriy.shevchenko@linux.intel.com> References: <20210531194947.10770-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org It makes little sense to make PWM flags optional since in case of multi-channel consumer the flags can be optional only for the last listed channel. Thus always require PWM flags to be provided. Fixes: 4a6ef8e37c4d ("pwm: Add support referencing PWMs from ACPI") Signed-off-by: Andy Shevchenko --- v2: no change drivers/pwm/core.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index c165c5822703..25f7b3370672 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -852,8 +852,10 @@ static struct pwm_chip *device_to_pwmchip(struct device *dev) * * This is analogous to of_pwm_get() except con_id is not yet supported. * ACPI entries must look like - * Package () {"pwms", Package () - * { , , [, ]}} + * Package () { "pwms", Package () { + * , , , , + * } + * } * * Returns: A pointer to the requested PWM device or an ERR_PTR()-encoded * error code on failure. @@ -877,7 +879,7 @@ static struct pwm_device *acpi_pwm_get(struct fwnode_handle *fwnode) if (!acpi) return ERR_PTR(-EINVAL); - if (args.nargs < 2) + if (args.nargs < 3) return ERR_PTR(-EPROTO); chip = device_to_pwmchip(&acpi->dev); @@ -891,7 +893,7 @@ static struct pwm_device *acpi_pwm_get(struct fwnode_handle *fwnode) pwm->args.period = args.args[1]; pwm->args.polarity = PWM_POLARITY_NORMAL; - if (args.nargs > 2 && args.args[2] & PWM_POLARITY_INVERTED) + if (args.args[2] & PWM_POLARITY_INVERTED) pwm->args.polarity = PWM_POLARITY_INVERSED; #endif From patchwork Mon May 31 19:49:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 450536 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E60C3C47096 for ; Mon, 31 May 2021 19:49:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CB84F6127C for ; Mon, 31 May 2021 19:49:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232116AbhEaTvZ (ORCPT ); Mon, 31 May 2021 15:51:25 -0400 Received: from mga14.intel.com ([192.55.52.115]:39313 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231585AbhEaTvS (ORCPT ); Mon, 31 May 2021 15:51:18 -0400 IronPort-SDR: VOShKQLNHol3t4gDFaruJ7gS9r80cWotzH1HlxhovfDRmdepMNKbcsL+Kb9Hk8pwZVVmNtfcta WPb/mQszrBDQ== X-IronPort-AV: E=McAfee;i="6200,9189,10001"; a="203215213" X-IronPort-AV: E=Sophos;i="5.83,238,1616482800"; d="scan'208";a="203215213" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 May 2021 12:49:33 -0700 IronPort-SDR: 3qBobZTieYv8pdHEF/aQdOShafjQI7bjgp4XNDDS6ccMI4a+25+Zu0HfMvLt7p9kjGdgPDGt2s Ob1ZX4hPGWgA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,238,1616482800"; d="scan'208";a="399392001" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga006.jf.intel.com with ESMTP; 31 May 2021 12:49:28 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 26B1D12A; Mon, 31 May 2021 22:49:51 +0300 (EEST) From: Andy Shevchenko To: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Andy Shevchenko , Flavio Suligoi , Thierry Reding , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pwm@vger.kernel.org, linux-acpi@vger.kernel.org Cc: Jonathan Corbet , Lee Jones , "Rafael J. Wysocki" , Len Brown Subject: [PATCH v2 4/7] pwm: core: Reuse fwnode_to_pwmchip() in ACPI case Date: Mon, 31 May 2021 22:49:44 +0300 Message-Id: <20210531194947.10770-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210531194947.10770-1-andriy.shevchenko@linux.intel.com> References: <20210531194947.10770-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org In ACPI case we may use matching by fwnode as provided via fwnode_to_pwmchip(). This makes device_to_pwmchip() not needed anymore. Signed-off-by: Andy Shevchenko --- v2: no change drivers/pwm/core.c | 31 +------------------------------ 1 file changed, 1 insertion(+), 30 deletions(-) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 338d8ee369db..2223a9b6644b 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -819,28 +819,6 @@ struct pwm_device *of_pwm_get(struct device *dev, struct device_node *np, } EXPORT_SYMBOL_GPL(of_pwm_get); -#if IS_ENABLED(CONFIG_ACPI) -static struct pwm_chip *device_to_pwmchip(struct device *dev) -{ - struct pwm_chip *chip; - - mutex_lock(&pwm_lock); - - list_for_each_entry(chip, &pwm_chips, list) { - struct acpi_device *adev = ACPI_COMPANION(chip->dev); - - if ((chip->dev == dev) || (adev && &adev->dev == dev)) { - mutex_unlock(&pwm_lock); - return chip; - } - } - - mutex_unlock(&pwm_lock); - - return ERR_PTR(-EPROBE_DEFER); -} -#endif - /** * acpi_pwm_get() - request a PWM via parsing "pwms" property in ACPI * @fwnode: firmware node to get the "pwm" property from @@ -863,9 +841,7 @@ static struct pwm_chip *device_to_pwmchip(struct device *dev) static struct pwm_device *acpi_pwm_get(struct fwnode_handle *fwnode) { struct pwm_device *pwm = ERR_PTR(-ENODEV); -#if IS_ENABLED(CONFIG_ACPI) struct fwnode_reference_args args; - struct acpi_device *acpi; struct pwm_chip *chip; int ret; @@ -875,14 +851,10 @@ static struct pwm_device *acpi_pwm_get(struct fwnode_handle *fwnode) if (ret < 0) return ERR_PTR(ret); - acpi = to_acpi_device_node(args.fwnode); - if (!acpi) - return ERR_PTR(-EINVAL); - if (args.nargs < 3) return ERR_PTR(-EPROTO); - chip = device_to_pwmchip(&acpi->dev); + chip = fwnode_to_pwmchip(args.fwnode); if (IS_ERR(chip)) return ERR_CAST(chip); @@ -895,7 +867,6 @@ static struct pwm_device *acpi_pwm_get(struct fwnode_handle *fwnode) if (args.args[2] & PWM_POLARITY_INVERTED) pwm->args.polarity = PWM_POLARITY_INVERSED; -#endif return pwm; } From patchwork Mon May 31 19:49:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 450538 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B8E34C47097 for ; Mon, 31 May 2021 19:49:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9476F6127C for ; Mon, 31 May 2021 19:49:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231809AbhEaTvU (ORCPT ); Mon, 31 May 2021 15:51:20 -0400 Received: from mga03.intel.com ([134.134.136.65]:46675 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230288AbhEaTvS (ORCPT ); Mon, 31 May 2021 15:51:18 -0400 IronPort-SDR: YdJHNsOPYgYCxG+x3O49BQJqYrYjTz9f5tNH3DVqNNoyH/Il+JIgqkTDidTFOvgFmJdOu31I0F mnk+2OS55Z2g== X-IronPort-AV: E=McAfee;i="6200,9189,10001"; a="203448751" X-IronPort-AV: E=Sophos;i="5.83,238,1616482800"; d="scan'208";a="203448751" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 May 2021 12:49:32 -0700 IronPort-SDR: vdQPZP1UmIhzvYrCbZnYJclHUXuLl7dqvk1nSpXfzACXPBGcwid9C/R6uKevuYsMSngTKYeFsi uDBNkUv+c6vQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,238,1616482800"; d="scan'208";a="616612686" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga005.jf.intel.com with ESMTP; 31 May 2021 12:49:28 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 3324F53E; Mon, 31 May 2021 22:49:51 +0300 (EEST) From: Andy Shevchenko To: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Andy Shevchenko , Flavio Suligoi , Thierry Reding , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pwm@vger.kernel.org, linux-acpi@vger.kernel.org Cc: Jonathan Corbet , Lee Jones , "Rafael J. Wysocki" , Len Brown Subject: [PATCH v2 5/7] pwm: core: Unify fwnode checks in the module Date: Mon, 31 May 2021 22:49:45 +0300 Message-Id: <20210531194947.10770-5-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210531194947.10770-1-andriy.shevchenko@linux.intel.com> References: <20210531194947.10770-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Historically we have two different approaches on how to check type of fwnode. Unify them using the latest and greatest fwnode related APIs. Signed-off-by: Andy Shevchenko --- v2: corrected property name in kernel doc drivers/pwm/core.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 2223a9b6644b..a27d7c2aa6fe 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -821,7 +821,7 @@ EXPORT_SYMBOL_GPL(of_pwm_get); /** * acpi_pwm_get() - request a PWM via parsing "pwms" property in ACPI - * @fwnode: firmware node to get the "pwm" property from + * @fwnode: firmware node to get the "pwms" property from * * Returns the PWM device parsed from the fwnode and index specified in the * "pwms" property or a negative error-code on failure. @@ -838,7 +838,7 @@ EXPORT_SYMBOL_GPL(of_pwm_get); * Returns: A pointer to the requested PWM device or an ERR_PTR()-encoded * error code on failure. */ -static struct pwm_device *acpi_pwm_get(struct fwnode_handle *fwnode) +static struct pwm_device *acpi_pwm_get(const struct fwnode_handle *fwnode) { struct pwm_device *pwm = ERR_PTR(-ENODEV); struct fwnode_reference_args args; @@ -922,6 +922,7 @@ void pwm_remove_table(struct pwm_lookup *table, size_t num) */ struct pwm_device *pwm_get(struct device *dev, const char *con_id) { + const struct fwnode_handle *fwnode = dev ? dev_fwnode(dev) : NULL; const char *dev_id = dev ? dev_name(dev) : NULL; struct pwm_device *pwm; struct pwm_chip *chip; @@ -932,12 +933,12 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id) int err; /* look up via DT first */ - if (IS_ENABLED(CONFIG_OF) && dev && dev->of_node) - return of_pwm_get(dev, dev->of_node, con_id); + if (is_of_node(fwnode)) + return of_pwm_get(dev, to_of_node(fwnode), con_id); /* then lookup via ACPI */ - if (dev && is_acpi_node(dev->fwnode)) { - pwm = acpi_pwm_get(dev->fwnode); + if (is_acpi_node(fwnode)) { + pwm = acpi_pwm_get(fwnode); if (!IS_ERR(pwm) || PTR_ERR(pwm) != -ENOENT) return pwm; } From patchwork Mon May 31 19:49:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 450539 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C6A5C47082 for ; Mon, 31 May 2021 19:49:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1023A6128A for ; Mon, 31 May 2021 19:49:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231670AbhEaTvT (ORCPT ); Mon, 31 May 2021 15:51:19 -0400 Received: from mga05.intel.com ([192.55.52.43]:6903 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231563AbhEaTvS (ORCPT ); Mon, 31 May 2021 15:51:18 -0400 IronPort-SDR: llgHi44og4euXMoGje9G5HJUcfP+D62CPMMSq4BlmGXi6VDK1vpG6F596kwawZQgw9ZUvlEpxj McsPxp5Nvjjg== X-IronPort-AV: E=McAfee;i="6200,9189,10001"; a="289027850" X-IronPort-AV: E=Sophos;i="5.83,238,1616482800"; d="scan'208";a="289027850" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 May 2021 12:49:35 -0700 IronPort-SDR: V7ODrX3xLgQyAgWRdFqSl+psciNKF2/BbgM4EGLlNy0C6Qg7uBmF0wcNEQA7/7utGJmctNSwBw kRlVu71KxxqQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,238,1616482800"; d="scan'208";a="399062437" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga003.jf.intel.com with ESMTP; 31 May 2021 12:49:31 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 4E0655B6; Mon, 31 May 2021 22:49:51 +0300 (EEST) From: Andy Shevchenko To: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Andy Shevchenko , Flavio Suligoi , Thierry Reding , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pwm@vger.kernel.org, linux-acpi@vger.kernel.org Cc: Jonathan Corbet , Lee Jones , "Rafael J. Wysocki" , Len Brown Subject: [PATCH v2 7/7] pwm: core: Simplify some devm_*pwm*() functions Date: Mon, 31 May 2021 22:49:47 +0300 Message-Id: <20210531194947.10770-7-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210531194947.10770-1-andriy.shevchenko@linux.intel.com> References: <20210531194947.10770-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Use devm_add_action_or_reset() instead of devres_alloc() and devres_add(), which works the same. This will simplify the code. There is no functional changes. Signed-off-by: Andy Shevchenko Reviewed-by: Uwe Kleine-König --- v2: new patch drivers/pwm/core.c | 60 +++++++++++++++++++--------------------------- 1 file changed, 25 insertions(+), 35 deletions(-) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 6d4410bd9793..9f643414676b 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -1059,9 +1059,9 @@ void pwm_put(struct pwm_device *pwm) } EXPORT_SYMBOL_GPL(pwm_put); -static void devm_pwm_release(struct device *dev, void *res) +static void devm_pwm_release(void *pwm) { - pwm_put(*(struct pwm_device **)res); + pwm_put(pwm); } /** @@ -1077,19 +1077,16 @@ static void devm_pwm_release(struct device *dev, void *res) */ struct pwm_device *devm_pwm_get(struct device *dev, const char *con_id) { - struct pwm_device **ptr, *pwm; - - ptr = devres_alloc(devm_pwm_release, sizeof(*ptr), GFP_KERNEL); - if (!ptr) - return ERR_PTR(-ENOMEM); + struct pwm_device *pwm; + int ret; pwm = pwm_get(dev, con_id); - if (!IS_ERR(pwm)) { - *ptr = pwm; - devres_add(dev, ptr); - } else { - devres_free(ptr); - } + if (IS_ERR(pwm)) + return pwm; + + ret = devm_add_action_or_reset(dev, devm_pwm_release, pwm); + if (ret) + return ERR_PTR(ret); return pwm; } @@ -1110,19 +1107,16 @@ EXPORT_SYMBOL_GPL(devm_pwm_get); struct pwm_device *devm_of_pwm_get(struct device *dev, struct device_node *np, const char *con_id) { - struct pwm_device **ptr, *pwm; - - ptr = devres_alloc(devm_pwm_release, sizeof(*ptr), GFP_KERNEL); - if (!ptr) - return ERR_PTR(-ENOMEM); + struct pwm_device *pwm; + int ret; pwm = of_pwm_get(dev, np, con_id); - if (!IS_ERR(pwm)) { - *ptr = pwm; - devres_add(dev, ptr); - } else { - devres_free(ptr); - } + if (IS_ERR(pwm)) + return pwm; + + ret = devm_add_action_or_reset(dev, devm_pwm_release, pwm); + if (ret) + return ERR_PTR(ret); return pwm; } @@ -1144,23 +1138,19 @@ struct pwm_device *devm_fwnode_pwm_get(struct device *dev, struct fwnode_handle *fwnode, const char *con_id) { - struct pwm_device **ptr, *pwm = ERR_PTR(-ENODEV); - - ptr = devres_alloc(devm_pwm_release, sizeof(*ptr), GFP_KERNEL); - if (!ptr) - return ERR_PTR(-ENOMEM); + struct pwm_device *pwm = ERR_PTR(-ENODEV); + int ret; if (is_of_node(fwnode)) pwm = of_pwm_get(dev, to_of_node(fwnode), con_id); else if (is_acpi_node(fwnode)) pwm = acpi_pwm_get(fwnode); + if (IS_ERR(pwm)) + return pwm; - if (!IS_ERR(pwm)) { - *ptr = pwm; - devres_add(dev, ptr); - } else { - devres_free(ptr); - } + ret = devm_add_action_or_reset(dev, devm_pwm_release, pwm); + if (ret) + return ERR_PTR(ret); return pwm; }