[v2] drm/panel: Fine tune Starry-ili9882t panel HFP and HBP

Cong Yang yangcong5 at huaqin.corp-partner.google.com
Tue Jun 27 05:01:48 UTC 2023


Because the setting of hproch is too small, there will be warning in
kernel log[1]. After fine tune the HFP and HBP, this warning can be
solved. The actual measurement frame rate is 60.1Hz.

[1]: WARNING kernel:[drm] HFP + HBP less than d-phy, FPS will under 60Hz

Fixes: 8716a6473e6c ("drm/panel: Support for Starry-ili9882t TDDI
MIPI-DSI panel")
Signed-off-by: Cong Yang <yangcong5 at huaqin.corp-partner.google.com>
Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>
---
v2:
  - Update commit add Fixes tag
---
 drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
index 3cc9fb0d4f5d..dc276c346fd1 100644
--- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
+++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
@@ -2139,9 +2139,9 @@ static const struct panel_desc starry_himax83102_j02_desc = {
 static const struct drm_display_mode starry_ili9882t_default_mode = {
 	.clock = 165280,
 	.hdisplay = 1200,
-	.hsync_start = 1200 + 32,
-	.hsync_end = 1200 + 32 + 30,
-	.htotal = 1200 + 32 + 30 + 32,
+	.hsync_start = 1200 + 72,
+	.hsync_end = 1200 + 72 + 30,
+	.htotal = 1200 + 72 + 30 + 72,
 	.vdisplay = 1920,
 	.vsync_start = 1920 + 68,
 	.vsync_end = 1920 + 68 + 2,
-- 
2.25.1



More information about the dri-devel mailing list