From nobody Sat May 10 06:13:17 2025 Delivered-To: importer2@patchew.org Received-SPF: pass (zohomail.com: domain of vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; envelope-from=linux-kernel-owner@vger.kernel.org; helo=vger.kernel.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass(p=none dis=none) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; t=1619518777; cv=none; d=zohomail.com; s=zohoarc; b=AmBdN/5t8AhGOwaCCbuZp+1AlGlCmZ2KulkD/E7txYYT/5a+JRGYbumY81LXkmMD8kPsVNPdAsARAiyg5E6FDhebhTFmN46FTr6f4yqb6BRMflpWKIRZzCd2lA/Sfl9qXX8Z8y4Qrk7t9eYwTxygox2qW8l3JY+Vrsp+xmIbLjs= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1619518777; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Id:MIME-Version:Message-ID:References:Sender:Subject:To; bh=5dPM+MMJi6B5zr4FfEOOo5bEOoO0UyNbs0h6pLJ4EXg=; b=IX6qfyoLu2CzbUm4smJJfmFOQ0NXx/Lpen9CGmAIyjkwTFos1E8u9pA4NEzhNqc02Me1V2D73MUS+50QtDOxPEAxElf3GPSNlURCeLBz9oEoKK12JmcKTeJQKrzwc3Xbo0BNDa8lYVt7e+LZNqJ1Oo3wYK7po8ezyBMWFcdysco= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass header.from= (p=none dis=none) header.from= Return-Path: Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mx.zohomail.com with SMTP id 1619518777755667.1405087301493; Tue, 27 Apr 2021 03:19:37 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237981AbhD0KUT (ORCPT ); Tue, 27 Apr 2021 06:20:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:34780 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236134AbhD0KPO (ORCPT ); Tue, 27 Apr 2021 06:15:14 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5E020611ED; Tue, 27 Apr 2021 10:13:55 +0000 (UTC) Received: by mail.kernel.org with local (Exim 4.94) (envelope-from ) id 1lbKj2-000j8M-BJ; Tue, 27 Apr 2021 12:13:52 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1619518435; bh=ef7IZ30lWjyFTV9EZRM5TkDA3zgk8AfGs9/mdIqlXQw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RB3Q5l/+RxAU8Jsd4tjtOWG3kz+K+KNeI0F0TYSc68vmC/Y9CU7c+TXrc6Js29jDr nRymjCPnKpJo4cDfNU7p4MMKKKZ7JewDJzQ/1XC/TB45YnTBJW6fQgdohfcitDLNIW Y+4h8BajogEp6yBzVlSt99afe7ZS3/CIR9zhRqJ6FK6t9B/0TAK227JqwSrZwqrj2I KC/DvyHDzx3OTOY7OnUsV3L7YTy5JNpMG4bmBdewOuUyMD9lEFFVe68kStsGuMDwDD K9APVYPUfpZGgv4vStvVCYZeXcWcloWaRAP+SLfTF3GL7YMCgrLsz/TGJ6PJ378ysJ c3HR51tTcDLVg== From: Mauro Carvalho Chehab Cc: linuxarm@huawei.com, mauro.chehab@huawei.com, Mauro Carvalho Chehab , =?UTF-8?q?Niklas=20S=C3=B6derlund?= , Mauro Carvalho Chehab , linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org, =?UTF-8?q?Niklas=20S=C3=B6derlund?= Subject: [PATCH v2 78/79] media: rcar-vin: use pm_runtime_resume_and_get() Date: Tue, 27 Apr 2021 12:13:45 +0200 Message-Id: <9ebf042135b50dedc6e1f654e4c8487602645d29.1619518193.git.mchehab+huawei@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Sender: Mauro Carvalho Chehab To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-ZohoMail-DKIM: fail (Header signature does not verify) Commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal wi= th 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 S=C3=B6derlund Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/rcar-vin/rcar-csi2.c | 6 ++++++ drivers/media/platform/rcar-vin/rcar-dma.c | 6 ++---- drivers/media/platform/rcar-vin/rcar-v4l2.c | 6 ++---- 3 files changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/media/platform/rcar-vin/rcar-csi2.c b/drivers/media/pl= atform/rcar-vin/rcar-csi2.c index e06cd512aba2..ce8e84f9e3d9 100644 --- a/drivers/media/platform/rcar-vin/rcar-csi2.c +++ b/drivers/media/platform/rcar-vin/rcar-csi2.c @@ -408,6 +408,12 @@ static void rcsi2_enter_standby(struct rcar_csi2 *priv) =20 static void rcsi2_exit_standby(struct rcar_csi2 *priv) { + /* + * The code at rcsi2_enter_standby() assumes + * inconditionally that PM runtime usage count was + * incremented. So, it shouldn't use pm_runtime_resume_and_get() + * here. + */ pm_runtime_get_sync(priv->dev); reset_control_deassert(priv->rstc); } diff --git a/drivers/media/platform/rcar-vin/rcar-dma.c b/drivers/media/pla= tform/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, u= 8 chsel) u32 vnmc; int ret; =20 - ret =3D pm_runtime_get_sync(vin->dev); - if (ret < 0) { - pm_runtime_put_noidle(vin->dev); + ret =3D pm_runtime_resume_and_get(vin->dev); + if (ret < 0) return ret; - } =20 /* Make register writes take effect immediately. */ vnmc =3D rvin_read(vin, VNMC_REG); diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/pl= atform/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 =3D video_drvdata(file); int ret; =20 - ret =3D pm_runtime_get_sync(vin->dev); - if (ret < 0) { - pm_runtime_put_noidle(vin->dev); + ret =3D pm_runtime_resume_and_get(vin->dev); + if (ret < 0) return ret; - } =20 ret =3D mutex_lock_interruptible(&vin->lock); if (ret) --=20 2.30.2