From: Bogdan Togorean <bogdan.togorean@xxxxxxxxxx> 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. Signed-off-by: Bogdan Togorean <bogdan.togorean@xxxxxxxxxx> Signed-off-by: Alexandru Ardelean <alex@xxxxxxxxxxx> --- drivers/gpu/drm/i2c/adv7511.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i2c/adv7511.c b/drivers/gpu/drm/i2c/adv7511.c index 61aa824d45d2..e016105a8fbe 100644 --- a/drivers/gpu/drm/i2c/adv7511.c +++ b/drivers/gpu/drm/i2c/adv7511.c @@ -729,8 +729,13 @@ static void adv7511_encoder_mode_set(struct drm_encoder *encoder, 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)); -- 2.40.1