linux-kernel - [PATCH] drm/panel: Fine tune Starry-ili9882t panel HFP and HBP

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Message-Id: <20230626120724.161117-1-yangcong5@huaqin.corp-partner.google.com>
Date:   Mon, 26 Jun 2023 20:07:24 +0800
From:   Cong Yang <yangcong5@...qin.corp-partner.google.com>
To:     sam@...nborg.org, neil.armstrong@...aro.org, daniel@...ll.ch,
        airlied@...il.com, dianders@...gle.com, hsinyi@...gle.com
Cc:     dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Cong Yang <yangcong5@...qin.corp-partner.google.com>
Subject: [PATCH] drm/panel: Fine tune Starry-ili9882t panel HFP and HBP

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

Signed-off-by: Cong Yang <yangcong5@...qin.corp-partner.google.com>
---
 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