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Wed, 28 Apr 2021 15:25:51 +0000 (GMT) Subject: Re: [PATCH v4 07/79] media: exynos-gsc: don't resume at remove time To: Mauro Carvalho Chehab Cc: linuxarm@huawei.com, mauro.chehab@huawei.com, Ezequiel Garcia , Hans Verkuil , Krzysztof Kozlowski , Mauro Carvalho Chehab , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-samsung-soc@vger.kernel.org From: Sylwester Nawrocki Message-ID: <138de070-a06c-654e-4912-d41f0cd658c2@samsung.com> Date: Wed, 28 Apr 2021 17:25:51 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: <210a2eee928d2ae7aee65e177f20cfb3f00e29ee.1619621413.git.mchehab+huawei@kernel.org> Content-Language: en-US Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrGKsWRmVeSWpSXmKPExsWy7djP87oNdZ0JBm3rLS12bvjCbnFx5l0W i/PnN7BbbHp8jdXi8q45bBY9G7ayWsw4v4/J4vDGM0wWbQsus1k8nH2V0WLZpj9MDtweO+4u YfRoOfKW1WPTqk42j81L6j0+b5LzOPX1M3sAWxSXTUpqTmZZapG+XQJXxt3/G5kLvvBWTL29 lK2B8Rh3FyMnh4SAicSi6d8Yuxi5OIQEVjBK9Ow8xQLhfGGUaHxzkx3C+cwosf/MehaYlvV3 +6FaljNKnDx7kBXC+cgocfl+BxNIlbCAj8ScowcYQWwRAVOJm686weLMAo+YJM5OkAWx2QQM JXqP9oHV8ArYSSw6+R1oEAcHi4CqxPELUiBhUYFkifOPr7JDlAhKnJz5BOwIToEEiWWtS1kh RopL3HoyH2q8vMT2t3OYQe6REGjnlGjqamOFuNpFYvG9c4wQtrDEq+Nb2CFsGYn/O0GaQRqa gQGw+zY7hDOBUeL+8QVQHdYSd879YgO5jllAU2L9Ln2IsKPElX1fwY6WEOCTuPFWEOIIPolJ 26YzQ4R5JTrahCCqVSR+r5rOBGFLSXQ/+c8ygVFpFpLXZiF5ZxaSd2Yh7F3AyLKKUTy1tDg3 PbXYKC+1XK84Mbe4NC9dLzk/dxMjMGmd/nf8yw7G5a8+6h1iZOJgPMQowcGsJMLLtqs1QYg3 JbGyKrUoP76oNCe1+BCjNAeLkjhv0pY18UIC6YklqdmpqQWpRTBZJg5OqQamwFf5XAdeh2vs 49n99izz18ypBzpyni2xXR/xTdWzSSxm0irjU1pHLrFMF4pvU1644fuMR55Zhl0OwjEhCveX sPQs2LOpZYX/dKVP11vrZig8WrOb4Z3meQbNY6fWrWU+V+omM5M5f6KT78Xrpk8+tcrwV3k9 OjnBeS3frMYJzXx9bT1d0sf29zvPrzu7OEik4MvvSZJip3ecTvld1V9Tdj9A6O4J7TKmd5qR k1t0k8tYBDzLDa+cvfEmU3rZwgUcpb+9pjySFFmafMAtO/1HiZydYrzjizkLov9kP15zTGfO nMzXlj6cUQwSnMcuveFoiUsJCPN+O7t30ztWpy8iH7m21d79UeBxMk3I5WOIEktxRqKhFnNR cSIA0fcLeskDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrBIsWRmVeSWpSXmKPExsVy+t/xu7oNdZ0JBstuKFrs3PCF3eLizLss FufPb2C32PT4GqvF5V1z2Cx6NmxltZhxfh+TxeGNZ5gs2hZcZrN4OPsqo8WyTX+YHLg9dtxd wujRcuQtq8emVZ1sHpuX1Ht83iTncerrZ/YAtig9m6L80pJUhYz84hJbpWhDCyM9Q0sLPSMT Sz1DY/NYKyNTJX07m5TUnMyy1CJ9uwS9jLv/NzIXfOGtmHp7KVsD4zHuLkZODgkBE4n1d/sZ uxi5OIQEljJKzLp8lb2LkQMoISUxv0UJokZY4s+1LjaImveMEot+/GYCSQgL+EjMOXqAEcQW ETCVuPmqkwmkiFngGZPEoos7oDqeMUq8XXiBFaSKTcBQovdoH1gHr4CdxKKT31lBtrEIqEoc vyAFEhYVSJZY/XszK0SJoMTJmU9YQGxOgQSJZa1LweLMAuoSf+ZdYoawxSVuPZnPBGHLS2x/ O4d5AqPQLCTts5C0zELSMgtJywJGllWMIqmlxbnpucVGesWJucWleel6yfm5mxiBUbrt2M8t OxhXvvqod4iRiYPxEKMEB7OSCC/brtYEId6UxMqq1KL8+KLSnNTiQ4ymQO9MZJYSTc4Hpom8 knhDMwNTQxMzSwNTSzNjJXFekyNr4oUE0hNLUrNTUwtSi2D6mDg4pRqYjNMa20NzWhexb+0+ vatG58E+QfZtUyQ+ffEreXT89s4/vDyePXV/94d9XRNikHp9S/2u1F7T8GV6v7j0M97lcu1o kLpR/iFnSsHEMkafLQvPneHUWN/4tPKjVabAmzq5jEd7OK5qtRo+5upQbQ47Ou3DIt3pRb6/ cn7e+pztz70sSPX2u73VW79ZypuseXMge4HWsmPmske2bWpw26t6O9n+YeJDN+saT6l1h9kL pT/M4WR7cmunHbPEpvUCvLnTLxboXN3moHD0msWUjM85Te7cHD85b79/YX93Y5SoIFex/Rdd 7knmPOXbQ6UsexZu/yq2kKlroWPVxFfPN16runeo75N1oIESH+P0HbOzlViKMxINtZiLihMB Qd+oQFsDAAA= X-CMS-MailID: 20210428152552eucas1p25dceb5c828e242297a923d7342641cdc X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20210428145257eucas1p2152894daee2534dd26ced8df46456d72 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20210428145257eucas1p2152894daee2534dd26ced8df46456d72 References: <210a2eee928d2ae7aee65e177f20cfb3f00e29ee.1619621413.git.mchehab+huawei@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 28.04.2021 16:51, Mauro Carvalho Chehab wrote: > Calling pm_runtime_get_sync() at driver's removal time is not > needed, as this will resume PM runtime. Also, the PM runtime > code at pm_runtime_disable() already calls it, if it detects > the need. > > So, change the logic in order to disable PM runtime earlier. > > Signed-off-by: Mauro Carvalho Chehab Thank you for correcting that. > --- > drivers/media/platform/exynos-gsc/gsc-core.c | 11 ++++++----- > 1 file changed, 6 insertions(+), 5 deletions(-) > > diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c > index 9f41c2e7097a..8b943075c503 100644 > --- a/drivers/media/platform/exynos-gsc/gsc-core.c > +++ b/drivers/media/platform/exynos-gsc/gsc-core.c > @@ -1210,18 +1210,19 @@ static int gsc_remove(struct platform_device *pdev) > struct gsc_dev *gsc = platform_get_drvdata(pdev); > int i; > > - pm_runtime_get_sync(&pdev->dev); > - > gsc_unregister_m2m_device(gsc); > v4l2_device_unregister(&gsc->v4l2_dev); > > vb2_dma_contig_clear_max_seg_size(&pdev->dev); > - for (i = 0; i < gsc->num_clocks; i++) > - clk_disable_unprepare(gsc->clock[i]); > > - pm_runtime_put_noidle(&pdev->dev); > pm_runtime_disable(&pdev->dev); > + if (!pm_runtime_status_suspended(dev)) { It should be &pdev->dev here rather than dev... > + for (i = 0; i < gsc->num_clocks; i++) > + clk_disable_unprepare(gsc->clock[i]); > + } > + pm_runtime_set_suspended(dev); and here s/dev/&pdev->dev. With above issues fixed, Reviewed-by: Sylwester Nawrocki > dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name); > return 0; > } Thanks, Sylwester From mboxrd@z Thu Jan 1 00:00:00 1970 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=-15.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 0B818C433ED for ; Wed, 28 Apr 2021 15:28:38 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 59886613FF for ; 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Wed, 28 Apr 2021 15:25:51 +0000 (GMT) Subject: Re: [PATCH v4 07/79] media: exynos-gsc: don't resume at remove time To: Mauro Carvalho Chehab Cc: linuxarm@huawei.com, mauro.chehab@huawei.com, Ezequiel Garcia , Hans Verkuil , Krzysztof Kozlowski , Mauro Carvalho Chehab , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-samsung-soc@vger.kernel.org From: Sylwester Nawrocki Message-ID: <138de070-a06c-654e-4912-d41f0cd658c2@samsung.com> Date: Wed, 28 Apr 2021 17:25:51 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: <210a2eee928d2ae7aee65e177f20cfb3f00e29ee.1619621413.git.mchehab+huawei@kernel.org> Content-Language: en-US X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrGKsWRmVeSWpSXmKPExsWy7djP87oNdZ0JBm3rLS12bvjCbnFx5l0W i/PnN7BbbHp8jdXi8q45bBY9G7ayWsw4v4/J4vDGM0wWbQsus1k8nH2V0WLZpj9MDtweO+4u YfRoOfKW1WPTqk42j81L6j0+b5LzOPX1M3sAWxSXTUpqTmZZapG+XQJXxt3/G5kLvvBWTL29 lK2B8Rh3FyMnh4SAicSi6d8Yuxi5OIQEVjBK9Ow8xQLhfGGUaHxzkx3C+cwosf/MehaYlvV3 +6FaljNKnDx7kBXC+cgocfl+BxNIlbCAj8ScowcYQWwRAVOJm686weLMAo+YJM5OkAWx2QQM JXqP9oHV8ArYSSw6+R1oEAcHi4CqxPELUiBhUYFkifOPr7JDlAhKnJz5BOwIToEEiWWtS1kh RopL3HoyH2q8vMT2t3OYQe6REGjnlGjqamOFuNpFYvG9c4wQtrDEq+Nb2CFsGYn/O0GaQRqa gQGw+zY7hDOBUeL+8QVQHdYSd879YgO5jllAU2L9Ln2IsKPElX1fwY6WEOCTuPFWEOIIPolJ 26YzQ4R5JTrahCCqVSR+r5rOBGFLSXQ/+c8ygVFpFpLXZiF5ZxaSd2Yh7F3AyLKKUTy1tDg3 PbXYKC+1XK84Mbe4NC9dLzk/dxMjMGmd/nf8yw7G5a8+6h1iZOJgPMQowcGsJMLLtqs1QYg3 JbGyKrUoP76oNCe1+BCjNAeLkjhv0pY18UIC6YklqdmpqQWpRTBZJg5OqQamwFf5XAdeh2vs 49n99izz18ypBzpyni2xXR/xTdWzSSxm0irjU1pHLrFMF4pvU1644fuMR55Zhl0OwjEhCveX sPQs2LOpZYX/dKVP11vrZig8WrOb4Z3meQbNY6fWrWU+V+omM5M5f6KT78Xrpk8+tcrwV3k9 OjnBeS3frMYJzXx9bT1d0sf29zvPrzu7OEik4MvvSZJip3ecTvld1V9Tdj9A6O4J7TKmd5qR k1t0k8tYBDzLDa+cvfEmU3rZwgUcpb+9pjySFFmafMAtO/1HiZydYrzjizkLov9kP15zTGfO nMzXlj6cUQwSnMcuveFoiUsJCPN+O7t30ztWpy8iH7m21d79UeBxMk3I5WOIEktxRqKhFnNR cSIA0fcLeskDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrBIsWRmVeSWpSXmKPExsVy+t/xu7oNdZ0JBstuKFrs3PCF3eLizLss FufPb2C32PT4GqvF5V1z2Cx6NmxltZhxfh+TxeGNZ5gs2hZcZrN4OPsqo8WyTX+YHLg9dtxd wujRcuQtq8emVZ1sHpuX1Ht83iTncerrZ/YAtig9m6L80pJUhYz84hJbpWhDCyM9Q0sLPSMT Sz1DY/NYKyNTJX07m5TUnMyy1CJ9uwS9jLv/NzIXfOGtmHp7KVsD4zHuLkZODgkBE4n1d/sZ uxi5OIQEljJKzLp8lb2LkQMoISUxv0UJokZY4s+1LjaImveMEot+/GYCSQgL+EjMOXqAEcQW ETCVuPmqkwmkiFngGZPEoos7oDqeMUq8XXiBFaSKTcBQovdoH1gHr4CdxKKT31lBtrEIqEoc vyAFEhYVSJZY/XszK0SJoMTJmU9YQGxOgQSJZa1LweLMAuoSf+ZdYoawxSVuPZnPBGHLS2x/ O4d5AqPQLCTts5C0zELSMgtJywJGllWMIqmlxbnpucVGesWJucWleel6yfm5mxiBUbrt2M8t OxhXvvqod4iRiYPxEKMEB7OSCC/brtYEId6UxMqq1KL8+KLSnNTiQ4ymQO9MZJYSTc4Hpom8 knhDMwNTQxMzSwNTSzNjJXFekyNr4oUE0hNLUrNTUwtSi2D6mDg4pRqYjNMa20NzWhexb+0+ vatG58E+QfZtUyQ+ffEreXT89s4/vDyePXV/94d9XRNikHp9S/2u1F7T8GV6v7j0M97lcu1o kLpR/iFnSsHEMkafLQvPneHUWN/4tPKjVabAmzq5jEd7OK5qtRo+5upQbQ47Ou3DIt3pRb6/ cn7e+pztz70sSPX2u73VW79ZypuseXMge4HWsmPmske2bWpw26t6O9n+YeJDN+saT6l1h9kL pT/M4WR7cmunHbPEpvUCvLnTLxboXN3moHD0msWUjM85Te7cHD85b79/YX93Y5SoIFex/Rdd 7knmPOXbQ6UsexZu/yq2kKlroWPVxFfPN16runeo75N1oIESH+P0HbOzlViKMxINtZiLihMB Qd+oQFsDAAA= X-CMS-MailID: 20210428152552eucas1p25dceb5c828e242297a923d7342641cdc X-Msg-Generator: CA X-RootMTR: 20210428145257eucas1p2152894daee2534dd26ced8df46456d72 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20210428145257eucas1p2152894daee2534dd26ced8df46456d72 References: <210a2eee928d2ae7aee65e177f20cfb3f00e29ee.1619621413.git.mchehab+huawei@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210428_082604_604320_F3C9B449 X-CRM114-Status: GOOD ( 21.87 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 28.04.2021 16:51, Mauro Carvalho Chehab wrote: > Calling pm_runtime_get_sync() at driver's removal time is not > needed, as this will resume PM runtime. Also, the PM runtime > code at pm_runtime_disable() already calls it, if it detects > the need. > > So, change the logic in order to disable PM runtime earlier. > > Signed-off-by: Mauro Carvalho Chehab Thank you for correcting that. > --- > drivers/media/platform/exynos-gsc/gsc-core.c | 11 ++++++----- > 1 file changed, 6 insertions(+), 5 deletions(-) > > diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c > index 9f41c2e7097a..8b943075c503 100644 > --- a/drivers/media/platform/exynos-gsc/gsc-core.c > +++ b/drivers/media/platform/exynos-gsc/gsc-core.c > @@ -1210,18 +1210,19 @@ static int gsc_remove(struct platform_device *pdev) > struct gsc_dev *gsc = platform_get_drvdata(pdev); > int i; > > - pm_runtime_get_sync(&pdev->dev); > - > gsc_unregister_m2m_device(gsc); > v4l2_device_unregister(&gsc->v4l2_dev); > > vb2_dma_contig_clear_max_seg_size(&pdev->dev); > - for (i = 0; i < gsc->num_clocks; i++) > - clk_disable_unprepare(gsc->clock[i]); > > - pm_runtime_put_noidle(&pdev->dev); > pm_runtime_disable(&pdev->dev); > + if (!pm_runtime_status_suspended(dev)) { It should be &pdev->dev here rather than dev... > + for (i = 0; i < gsc->num_clocks; i++) > + clk_disable_unprepare(gsc->clock[i]); > + } > + pm_runtime_set_suspended(dev); and here s/dev/&pdev->dev. With above issues fixed, Reviewed-by: Sylwester Nawrocki > dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name); > return 0; > } Thanks, Sylwester _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel