* [PATCH] drm: bridge: adv7511: Fix low refresh rate register for ADV7533/5
@ 2020-03-24 13:10 Bogdan Togorean
0 siblings, 0 replies; only message in thread
From: Bogdan Togorean @ 2020-03-24 13:10 UTC (permalink / raw)
To: dri-devel
Cc: Rob Clark, Jernej Skrabec, Jonas Karlman, David Airlie,
Neil Armstrong, Wolfram Sang, linux-kernel, Andrzej Hajda,
Laurent Pinchart, Hans Verkuil, Thomas Gleixner, Sam Ravnborg,
Matt Redfearn, Bogdan Togorean
From: Bogdan Togorean <bogdan.togorean@analog.com>
For ADV7533 and ADV7535 low refresh rate is selected using
bits [3:2] of 0x4a main register.
So depending on ADV model write 0xfb or 0x4a register.
Fixes: 9c8af882bf12: ("drm: Add adv7511 encoder driver")
Signed-off-by: Bogdan Togorean <bogdan.togorean@analog.com>
---
drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index 9e13e466e72c..2f8f7510f07e 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
@@ -756,8 +756,13 @@ static void adv7511_mode_set(struct adv7511 *adv7511,
else
low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
- regmap_update_bits(adv7511->regmap, 0xfb,
- 0x6, low_refresh_rate << 1);
+ if (adv7511->type == ADV7511)
+ regmap_update_bits(adv7511->regmap, 0xfb,
+ 0x6, low_refresh_rate << 1);
+ else
+ regmap_update_bits(adv7511->regmap, 0x4a,
+ 0xc, low_refresh_rate << 2);
+
regmap_update_bits(adv7511->regmap, 0x17,
0x60, (vsync_polarity << 6) | (hsync_polarity << 5));
--
2.17.1
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