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drm: adv7511: Fix low refresh rate register for ADV7533/5

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[ Upstream commit d281eeaa4de2636ff0c8e6ae387bb07b50e5fcbb ]

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: 2437e7cd88e8 ("drm/bridge: adv7533: Initial support for ADV7533")
Reviewed-by: Robert Foss <rfoss@kernel.org>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Signed-off-by: Bogdan Togorean <bogdan.togorean@analog.com>
Signed-off-by: Alexandru Ardelean <alex@shruggie.ro>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230719060143.63649-1-alex@shruggie.ro
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Bogdan Togorean 2023-07-19 09:01:43 +03:00 committed by Greg Kroah-Hartman
parent 88d32b9ad2
commit e6fc20a542
1 changed files with 7 additions and 2 deletions
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9
drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
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@ -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));