From f8c6bfc612b56f02e1b8fae699dff12738aaf889 Mon Sep 17 00:00:00 2001
From: Lucas Stach <l.stach@pengutronix.de>
Date: Wed, 10 Jul 2019 15:07:40 +0200
Subject: drm/panel: simple: fix AUO g185han01 horizontal blanking
Git-commit: f8c6bfc612b56f02e1b8fae699dff12738aaf889
Patch-mainline: v5.4-rc1
References: bsc#1152472
The horizontal blanking periods are too short, as the values are
specified for a single LVDS channel. Since this panel is dual LVDS
they need to be doubled. With this change the panel reaches its
nominal vrefresh rate of 60Fps, instead of the 64Fps with the
current wrong blanking.
Philipp Zabel added:
The datasheet specifies 960 active clocks + 40/128/160 clocks blanking
on each of the two LVDS channels (min/typical/max), so doubled this is
now correct.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1562764060.23869.12.camel@pengutronix.de
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/panel/panel-simple.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 226f068fb679..a50871c6836b 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -822,9 +822,9 @@ static const struct panel_desc auo_g133han01 = {
static const struct display_timing auo_g185han01_timings = {
.pixelclock = { 120000000, 144000000, 175000000 },
.hactive = { 1920, 1920, 1920 },
- .hfront_porch = { 18, 60, 74 },
- .hback_porch = { 12, 44, 54 },
- .hsync_len = { 10, 24, 32 },
+ .hfront_porch = { 36, 120, 148 },
+ .hback_porch = { 24, 88, 108 },
+ .hsync_len = { 20, 48, 64 },
.vactive = { 1080, 1080, 1080 },
.vfront_porch = { 6, 10, 40 },
.vback_porch = { 2, 5, 20 },
--
2.28.0