[PATCH] drm/panel: samsung-atna33xc20: extend msleep in atana33xc20_disable to avoid glitch

[Alvin1 Chen]

samsung-atna40ct03 encouters glitch when powering off, extned msleep
in atana33xc20_disable to 40 can avoid this symptom.

Signed-off-by: Alvin1 Chen <alvin1.chen@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/panel/panel-samsung-atna33xc20.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c b/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
index 9a482a744b8c1..87a4e1c47aaaa 100644
--- a/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
+++ b/drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
@@ -154,10 +154,10 @@ static int atana33xc20_disable(struct drm_panel *panel)
 	p->el3_was_on = true;
 
 	/*
-	 * Sleeping 20 ms here (after setting the GPIO) avoids a glitch when
+	 * Sleeping 40 ms here (after setting the GPIO) avoids a glitch when
 	 * powering off.
 	 */
-	msleep(20);
+	msleep(40);
 
 	return 0;
 }
-- 
2.34.1