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=-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 751F7C433B4 for ; Wed, 28 Apr 2021 14:54:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4236061435 for ; Wed, 28 Apr 2021 14:54:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240370AbhD1Oxq (ORCPT ); Wed, 28 Apr 2021 10:53:46 -0400 Received: from mail.kernel.org ([198.145.29.99]:35918 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240271AbhD1Ox3 (ORCPT ); Wed, 28 Apr 2021 10:53:29 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id C8FBF6144B; Wed, 28 Apr 2021 14:52:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1619621563; bh=gtR1SkTiYJ9WApgVEIkptCtIXyrWDvbS/bAOqzd9AhE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gui+r5mJheRBaT22aO45UqdlZpSqT3zQNryWIJ3tgxQsIurCryHjrbsq/jbdeGMs0 023zuja4D3XR8G280J5skQNG/R3/UneayZ0i/1mdelWGommQEvO+7uNuPLCYV0PcZt bJ+OME3IvhFDTZlsy2/+Unz3JxPpyv1gixe0930RqL5dB4bA3lidAbyXDsC/o4+9Y5 NzqOEeyHarutwxhTJcGPCVObkCgs1lJUpSxJPIHPUYKMIBqnFsgnOmyBKAs/w5Ave4 OxHisHh8zhy1bGGNpC0edJXgfLrysSEh7D3j3Bzk4hfi7r2tzmoHEvuAU4vxhqR6c3 ycWEI0B0NRP+w== Received: by mail.kernel.org with local (Exim 4.94) (envelope-from ) id 1lblYP-001Dpv-OZ; Wed, 28 Apr 2021 16:52:41 +0200 From: Mauro Carvalho Chehab Cc: linuxarm@huawei.com, mauro.chehab@huawei.com, Mauro Carvalho Chehab , 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 Subject: [PATCH v4 07/79] media: exynos-gsc: don't resume at remove time Date: Wed, 28 Apr 2021 16:51:28 +0200 Message-Id: <210a2eee928d2ae7aee65e177f20cfb3f00e29ee.1619621413.git.mchehab+huawei@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: Mauro Carvalho Chehab To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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)) + for (i = 0; i < gsc->num_clocks; i++) + clk_disable_unprepare(gsc->clock[i]); + + pm_runtime_set_suspended(dev); + dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name); return 0; } -- 2.30.2 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=-17.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,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 1493BC43460 for ; Wed, 28 Apr 2021 14:54:53 +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 BCD0A61442 for ; Wed, 28 Apr 2021 14:54:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BCD0A61442 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; 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Wed, 28 Apr 2021 14:52:46 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id C8FBF6144B; Wed, 28 Apr 2021 14:52:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1619621563; bh=gtR1SkTiYJ9WApgVEIkptCtIXyrWDvbS/bAOqzd9AhE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gui+r5mJheRBaT22aO45UqdlZpSqT3zQNryWIJ3tgxQsIurCryHjrbsq/jbdeGMs0 023zuja4D3XR8G280J5skQNG/R3/UneayZ0i/1mdelWGommQEvO+7uNuPLCYV0PcZt bJ+OME3IvhFDTZlsy2/+Unz3JxPpyv1gixe0930RqL5dB4bA3lidAbyXDsC/o4+9Y5 NzqOEeyHarutwxhTJcGPCVObkCgs1lJUpSxJPIHPUYKMIBqnFsgnOmyBKAs/w5Ave4 OxHisHh8zhy1bGGNpC0edJXgfLrysSEh7D3j3Bzk4hfi7r2tzmoHEvuAU4vxhqR6c3 ycWEI0B0NRP+w== Received: by mail.kernel.org with local (Exim 4.94) (envelope-from ) id 1lblYP-001Dpv-OZ; Wed, 28 Apr 2021 16:52:41 +0200 From: Mauro Carvalho Chehab To: Cc: linuxarm@huawei.com, mauro.chehab@huawei.com, Mauro Carvalho Chehab , 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 Subject: [PATCH v4 07/79] media: exynos-gsc: don't resume at remove time Date: Wed, 28 Apr 2021 16:51:28 +0200 Message-Id: <210a2eee928d2ae7aee65e177f20cfb3f00e29ee.1619621413.git.mchehab+huawei@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210428_075245_407896_44AC6FF4 X-CRM114-Status: GOOD ( 12.56 ) 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 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 --- 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)) + for (i = 0; i < gsc->num_clocks; i++) + clk_disable_unprepare(gsc->clock[i]); + + pm_runtime_set_suspended(dev); + dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name); return 0; } -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel