From patchwork Thu May 6 15:26:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 12242403 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,DKIM_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,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 F3339C43470 for ; Thu, 6 May 2021 15:27:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CD52E613E8 for ; Thu, 6 May 2021 15:27:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235637AbhEFP2K (ORCPT ); Thu, 6 May 2021 11:28:10 -0400 Received: from mail.kernel.org ([198.145.29.99]:40884 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235572AbhEFP1y (ORCPT ); Thu, 6 May 2021 11:27:54 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1DDF76196A; Thu, 6 May 2021 15:26:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1620314784; bh=oIZOpIBwHVlxuxb+tCGyZiRaE6QdZqQvQMPRN2jFRlM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ntpQ8FKKSJlYAsJZTCOuH7ldiQm0MPXlRmH8jpLDdcbWgWcUYdA+MORhShscEpkHC ap7SMCycuucfepxEhkhF86Zg5cIb0pyGCsEzL9qKYDGPAHaZaa90bXXNbj59DzJqok hNA4cs+gJ9Fjrez1JROHsVM/aTvWwjlmoL4hSa4TANTBOR2NL2rMvSHs4K4Mwozu9g P2/Duj9FHqnvFRJfESCy03w9LstJHAeena9F4K/CHkZiWMPVCKgeXzByw2OwE7VfUr Grz4EwcYfifJS4b3H0DG3zVgUliGAbT6Ye7aR4Sybbk9RwclRh8UFQps7Gi8JzB4g7 AIXWSEAoE6bzQ== Received: by mail.kernel.org with local (Exim 4.94.2) (envelope-from ) id 1left8-000SCZ-ED; Thu, 06 May 2021 17:26:06 +0200 From: Mauro Carvalho Chehab Cc: linuxarm@huawei.com, mauro.chehab@huawei.com, Mauro Carvalho Chehab , =?utf-8?q?Niklas_S=C3=B6?= =?utf-8?q?derlund?= , Mauro Carvalho Chehab , linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org, =?utf-8?q?N?= =?utf-8?q?iklas_S=C3=B6derlund?= Subject: [PATCH v5 24/25] media: rcar-vin: use pm_runtime_resume_and_get() Date: Thu, 6 May 2021 17:26:02 +0200 Message-Id: <9d28be9ebbf8343b6a7ed9c84b27d0cfa3b4d243.1620314616.git.mchehab+huawei@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: References: MIME-Version: 1.0 Sender: Mauro Carvalho Chehab To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter") added pm_runtime_resume_and_get() in order to automatically handle dev->power.usage_count decrement on errors. Use the new API, in order to cleanup the error check logic. Reviewed-by: Niklas Söderlund Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/rcar-vin/rcar-csi2.c | 15 ++++++++++++--- drivers/media/platform/rcar-vin/rcar-dma.c | 6 ++---- drivers/media/platform/rcar-vin/rcar-v4l2.c | 6 ++---- 3 files changed, 16 insertions(+), 11 deletions(-) diff --git a/drivers/media/platform/rcar-vin/rcar-csi2.c b/drivers/media/platform/rcar-vin/rcar-csi2.c index e06cd512aba2..99bf814eb2a7 100644 --- a/drivers/media/platform/rcar-vin/rcar-csi2.c +++ b/drivers/media/platform/rcar-vin/rcar-csi2.c @@ -406,10 +406,17 @@ static void rcsi2_enter_standby(struct rcar_csi2 *priv) pm_runtime_put(priv->dev); } -static void rcsi2_exit_standby(struct rcar_csi2 *priv) +static int rcsi2_exit_standby(struct rcar_csi2 *priv) { - pm_runtime_get_sync(priv->dev); + int ret; + + ret = pm_runtime_resume_and_get(priv->dev); + if (ret < 0) + return ret; + reset_control_deassert(priv->rstc); + + return 0; } static int rcsi2_wait_phy_start(struct rcar_csi2 *priv, @@ -657,7 +664,9 @@ static int rcsi2_start(struct rcar_csi2 *priv) { int ret; - rcsi2_exit_standby(priv); + ret = rcsi2_exit_standby(priv); + if (ret < 0) + return ret; ret = rcsi2_start_receiver(priv); if (ret) { diff --git a/drivers/media/platform/rcar-vin/rcar-dma.c b/drivers/media/platform/rcar-vin/rcar-dma.c index f30dafbdf61c..f5f722ab1d4e 100644 --- a/drivers/media/platform/rcar-vin/rcar-dma.c +++ b/drivers/media/platform/rcar-vin/rcar-dma.c @@ -1458,11 +1458,9 @@ int rvin_set_channel_routing(struct rvin_dev *vin, u8 chsel) u32 vnmc; int ret; - ret = pm_runtime_get_sync(vin->dev); - if (ret < 0) { - pm_runtime_put_noidle(vin->dev); + ret = pm_runtime_resume_and_get(vin->dev); + if (ret < 0) return ret; - } /* Make register writes take effect immediately. */ vnmc = rvin_read(vin, VNMC_REG); diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c index 457a65bf6b66..b1e9f86caa5c 100644 --- a/drivers/media/platform/rcar-vin/rcar-v4l2.c +++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c @@ -870,11 +870,9 @@ static int rvin_open(struct file *file) struct rvin_dev *vin = video_drvdata(file); int ret; - ret = pm_runtime_get_sync(vin->dev); - if (ret < 0) { - pm_runtime_put_noidle(vin->dev); + ret = pm_runtime_resume_and_get(vin->dev); + if (ret < 0) return ret; - } ret = mutex_lock_interruptible(&vin->lock); if (ret)