From: Akhil P Oommen <akhilpo@codeaurora.org>
To: freedreno@lists.freedesktop.org
Cc: dri-devel@freedesktop.org, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org, jcrouse@codeaurora.org,
mka@chromium.org, robdclark@gmail.com, dianders@chromium.org
Subject: [PATCH 1/2] drm/msm: Implement shutdown callback for adreno
Date: Mon, 19 Oct 2020 18:49:17 +0530 [thread overview]
Message-ID: <1603113558-23330-1-git-send-email-akhilpo@codeaurora.org> (raw)
Implement the shutdown callback for adreno gpu platform device
to safely shutdown it before a system reboot. This helps to avoid
futher transactions from gpu after the smmu is moved to bypass mode.
Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
---
drivers/gpu/drm/msm/adreno/adreno_device.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 58e03b2..87c8b03 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -475,6 +475,11 @@ static int adreno_remove(struct platform_device *pdev)
return 0;
}
+static void adreno_shutdown(struct platform_device *pdev)
+{
+ pm_runtime_force_suspend(&pdev->dev);
+}
+
static const struct of_device_id dt_match[] = {
{ .compatible = "qcom,adreno" },
{ .compatible = "qcom,adreno-3xx" },
@@ -509,6 +514,7 @@ static const struct dev_pm_ops adreno_pm_ops = {
static struct platform_driver adreno_driver = {
.probe = adreno_probe,
.remove = adreno_remove,
+ .shutdown = adreno_shutdown,
.driver = {
.name = "adreno",
.of_match_table = dt_match,
--
2.7.4
next reply other threads:[~2020-10-19 13:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-19 13:19 Akhil P Oommen [this message]
2020-10-19 13:19 ` [PATCH 2/2] drm/msm: Fix duplicate gpu node in icc summary Akhil P Oommen
2020-10-19 14:59 ` Jordan Crouse
2020-10-20 13:57 ` Akhil P Oommen
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