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authorPhilipp Zabel <p.zabel@pengutronix.de>2015-08-12 13:32:13 +0300
committerThierry Reding <treding@nvidia.com>2015-08-14 22:35:32 +0300
commitd901d2ba8a1577ea213e4c4e22e9ca1f67db61dd (patch)
treee5b6e75775f5467bcf851c70b469356600fbfe46 /drivers/gpu/drm/panel
parent58d6a7bc4f851b5bd43280eab145bab992cb7ebe (diff)
downloadlinux-d901d2ba8a1577ea213e4c4e22e9ca1f67db61dd.tar.xz
drm/panel: simple: Correct minimum hsync length of the HannStar HSD070PWW1 panel
According to the data sheet, the minimum horizontal blanking interval is 54 clocks (1 + 52 + 1), but tests with a Nitrogen6X have shown the minimum working horizontal blanking interval to be 60 clocks. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/panel')
-rw-r--r--drivers/gpu/drm/panel/panel-simple.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index a1cd431e17a6..39e9dffe07d9 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -713,7 +713,12 @@ static const struct display_timing hannstar_hsd070pww1_timing = {
.hactive = { 1280, 1280, 1280 },
.hfront_porch = { 1, 1, 10 },
.hback_porch = { 1, 1, 10 },
- .hsync_len = { 52, 158, 661 },
+ /*
+ * According to the data sheet, the minimum horizontal blanking interval
+ * is 54 clocks (1 + 52 + 1), but tests with a Nitrogen6X have shown the
+ * minimum working horizontal blanking interval to be 60 clocks.
+ */
+ .hsync_len = { 58, 158, 661 },
.vactive = { 800, 800, 800 },
.vfront_porch = { 1, 1, 10 },
.vback_porch = { 1, 1, 10 },