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Commit 188c4492 authored by Bogdan Togorean's avatar Bogdan Togorean Committed by Greg Kroah-Hartman
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drm: adv7511: Fix low refresh rate register for ADV7533/5 



[ 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: 2437e7cd ("drm/bridge: adv7533: Initial support for ADV7533")
Reviewed-by: default avatarRobert Foss <rfoss@kernel.org>
Reviewed-by: default avatarNuno Sa <nuno.sa@analog.com>
Signed-off-by: default avatarBogdan Togorean <bogdan.togorean@analog.com>
Signed-off-by: default avatarAlexandru Ardelean <alex@shruggie.ro>
Reviewed-by: default avatarFrieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: default avatarRobert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230719060143.63649-1-alex@shruggie.ro


Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 0661cb95

drivers/gpu/drm/bridge/adv7511/adv7511_drv.c

+7 −2
Original line number Diff line number Diff line
@@ -756,8 +756,13 @@ static void adv7511_mode_set(struct adv7511 *adv7511, 
	else

		low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;



	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));