[PATCH v4 03/12] drm/mediatek: mtk_dp: Call pm_runtime_put_sync() in removal path

[AngeloGioacchino Del Regno]

Since pm_runtime_put() queues an asynchronous suspend, calling
pm_runtime_disable() right after will cancel the pending suspend
work.

Call pm_runtime_put_sync() instead during mtk_dp_remove() to
overcome to this issue, making sure that the suspend ops execute
and that the hardware correctly powers off before module unload.

Fixes: f70ac097a2cf ("drm/mediatek: Add MT8195 Embedded DisplayPort driver")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
---
 drivers/gpu/drm/mediatek/mtk_dp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c
index f656b85b8421..0d0507890d99 100644
--- a/drivers/gpu/drm/mediatek/mtk_dp.c
+++ b/drivers/gpu/drm/mediatek/mtk_dp.c
@@ -2866,7 +2866,7 @@ static void mtk_dp_remove(struct platform_device *pdev)
 {
 	struct mtk_dp *mtk_dp = platform_get_drvdata(pdev);
 
-	pm_runtime_put(&pdev->dev);
+	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	if (mtk_dp->data->bridge_type != DRM_MODE_CONNECTOR_eDP)
 		timer_delete_sync(&mtk_dp->debounce_timer);
-- 
2.54.0