linux-kernel - [PATCH] drm/panel: Fix boe,tv101wum-n53 htotal timing

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Sat, 25 Jan 2020 13:02:56 +0800
From:   Nicolas Boichat <drinkcat@...omium.org>
To:     Sam Ravnborg <sam@...nborg.org>
Cc:     Jitao Shi <jitao.shi@...iatek.com>,
        Thierry Reding <thierry.reding@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/panel: Fix boe,tv101wum-n53 htotal timing

The datasheet suggests 60 for tHFP, so let's adjust the number
accordingly.

This also makes the framerate be 60Hz as intended:
159916.0 * 1000 / ((1200 + 80 + 24 + 60)*(1920 + 20 + 4 + 10))
=> 60.00 Hz

Signed-off-by: Nicolas Boichat <drinkcat@...omium.org>

---

This also matches the values that we use in our chromeos-4.19
vendor kernel.

Applies on top or drm-misc/drm-misc-next.

 drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
index 01faf8597700005..48a164257d18c35 100644
--- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
+++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
@@ -645,7 +645,7 @@ static const struct drm_display_mode boe_tv101wum_n53_default_mode = {
 	.hdisplay = 1200,
 	.hsync_start = 1200 + 80,
 	.hsync_end = 1200 + 80 + 24,
-	.htotal = 1200 + 80 + 24 + 40,
+	.htotal = 1200 + 80 + 24 + 60,
 	.vdisplay = 1920,
 	.vsync_start = 1920 + 20,
 	.vsync_end = 1920 + 20 + 4,
-- 
2.25.0.341.g760bfbb309-goog