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Subject[v1] drm/msm: add shutdown support for display platform_driver
Date
Define shutdown callback for display drm driver,
so as to disable all the CRTCS when shutdown
notification is received by the driver.

Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
---
drivers/gpu/drm/msm/msm_drv.c | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index e4b750b..7a8953f 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -1322,6 +1322,18 @@ 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);
+
+ if (!drm) {
+ DRM_ERROR("Invalid drm device node\n");
+ return;
+ }
+
+ 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 },
@@ -1334,6 +1346,7 @@ static int msm_pdev_remove(struct platform_device *pdev)
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,
--
1.9.1
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