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=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 7D818C433E2 for ; Mon, 31 Aug 2020 15:31:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4964D21707 for ; Mon, 31 Aug 2020 15:31:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598887900; bh=/IvZsneCXeaOhikdorhW99mg/h1pdfob0kUSatt8uFU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=v462/TDDhiOc6vDGtXRQXIuL2g5SOrTHV+u6QGSGzzOI0uwftjIoVAOWwGqTyVq5i rfGphnvWizHopO8S9svmM1lbBkNks23omed9QtVgU6C9eR/S3xEcmctgBU39FAcZZq M5HCEkpi+4yZvMI1WBUcQ08ae1h2lTJEe9gvQvVs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728947AbgHaPbi (ORCPT ); Mon, 31 Aug 2020 11:31:38 -0400 Received: from mail.kernel.org ([198.145.29.99]:42162 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728878AbgHaPbZ (ORCPT ); Mon, 31 Aug 2020 11:31:25 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 40E962176B; Mon, 31 Aug 2020 15:31:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598887885; bh=/IvZsneCXeaOhikdorhW99mg/h1pdfob0kUSatt8uFU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mD5ZcA2wcTeqCc14/6SlZ/JAGU+dJyjwwfpFMPSHukkDYReYGfqQg9SVcUPQVogeq Qu4ksO0HIO+CbSn58Ya83QKHmExdED+fyxfcS/paf6ITfZ5zNP2FKlPM7RZe2U/39A d7HZMtfvKI5/90ZULqBYLhXlzg/tcSp0ATrhdqZk= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Krishna Manikandan , Rob Clark , Sasha Levin , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org Subject: [PATCH AUTOSEL 4.19 04/11] drm/msm: add shutdown support for display platform_driver Date: Mon, 31 Aug 2020 11:31:10 -0400 Message-Id: <20200831153117.1024537-4-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200831153117.1024537-1-sashal@kernel.org> References: <20200831153117.1024537-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Krishna Manikandan [ Upstream commit 9d5cbf5fe46e350715389d89d0c350d83289a102 ] Define shutdown callback for display drm driver, so as to disable all the CRTCS when shutdown notification is received by the driver. This change will turn off the timing engine so that no display transactions are requested while mmu translations are getting disabled during reboot sequence. Signed-off-by: Krishna Manikandan Changes in v2: - Remove NULL check from msm_pdev_shutdown (Stephen Boyd) - Change commit text to reflect when this issue was uncovered (Sai Prakash Ranjan) Signed-off-by: Rob Clark Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/msm_drv.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 6f81de85fb860..7f45486b6650b 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -1358,6 +1358,13 @@ static int msm_pdev_remove(struct platform_device *pdev) return 0; } +static void msm_pdev_shutdown(struct platform_device *pdev) +{ + struct drm_device *drm = platform_get_drvdata(pdev); + + drm_atomic_helper_shutdown(drm); +} + static const struct of_device_id dt_match[] = { { .compatible = "qcom,mdp4", .data = (void *)KMS_MDP4 }, { .compatible = "qcom,mdss", .data = (void *)KMS_MDP5 }, @@ -1369,6 +1376,7 @@ MODULE_DEVICE_TABLE(of, dt_match); static struct platform_driver msm_platform_driver = { .probe = msm_pdev_probe, .remove = msm_pdev_remove, + .shutdown = msm_pdev_shutdown, .driver = { .name = "msm", .of_match_table = dt_match, -- 2.25.1