[PATCH 5.10] Revert "drm: meson_drv add shutdown function"

[Jerome Brunet]

This reverts commit d66083c0d6f5125a4d982aa177dd71ab4cd3d212
and commit d4ec1ffbdaa8939a208656e9c1440742c457ef16.

On v5.10 stable, reboot gets stuck on gxl and g12a chip family (at least).
This was tested on the aml-s905x-cc from libretch and the u200 reference
design.

Bisecting on the v5.10 stable branch lead to
commit d4ec1ffbdaa8 ("drm: meson_drv add shutdown function").

Reverting it (and a fixes on the it) sloves the problem.

Signed-off-by: Jerome Brunet <jbrunet at baylibre.com>
---

Hi Greg,

Things are fine on master but it breaks on v5.10-y.
I did not check v5.14-y yet. I'll try next week.


 drivers/gpu/drm/meson/meson_drv.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 2753067c08e6..3d1de9cbb1c8 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -482,17 +482,6 @@ static int meson_probe_remote(struct platform_device *pdev,
 	return count;
 }
 
-static void meson_drv_shutdown(struct platform_device *pdev)
-{
-	struct meson_drm *priv = dev_get_drvdata(&pdev->dev);
-
-	if (!priv)
-		return;
-
-	drm_kms_helper_poll_fini(priv->drm);
-	drm_atomic_helper_shutdown(priv->drm);
-}
-
 static int meson_drv_probe(struct platform_device *pdev)
 {
 	struct component_match *match = NULL;
@@ -564,7 +553,6 @@ static const struct dev_pm_ops meson_drv_pm_ops = {
 
 static struct platform_driver meson_drm_platform_driver = {
 	.probe      = meson_drv_probe,
-	.shutdown   = meson_drv_shutdown,
 	.driver     = {
 		.name	= "meson-drm",
 		.of_match_table = dt_match,
-- 
2.34.0