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[v2,2/2] drm/panel: simple: correct minimum hsync length of the HannStar HSD070PWW1 panel

Message ID 1439375533-28718-2-git-send-email-l.stach@pengutronix.de (mailing list archive)
State Accepted
Headers show

Commit Message

Lucas Stach Aug. 12, 2015, 10:32 a.m. UTC 
From: Philipp Zabel <p.zabel@pengutronix.de>

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>
---
v2: no changes
---
 drivers/gpu/drm/panel/panel-simple.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
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Patch

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 },