Hi!

Dne sobota, 28. december 2019 ob 21:28:18 CET je roman.stratiienko@globallogic.com napisal(a):

From: Roman Stratiienko roman.stratiienko@globallogic.com

At system start blink of u-boot ghost framebuffer can be observed. Fix it.

Reviewed-by: Jernej Skrabec jernej.skrabec@siol.net

Please note that U-Boot to Linux handover may not be without issues. I noticed that in some cases, HDMI EDID readout is broken. I guess already initialized HDMI controller doesn't like to be reinitialized. Or it may have something to do with the fact that U-Boot HDMI driver sets I2C timing and Linux kernel uses default one.

Best regards, Jernej

Signed-off-by: Roman Stratiienko roman.stratiienko@globallogic.com

drivers/gpu/drm/sun4i/sun8i_mixer.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c index da84fccf7784..b906b8cc464e 100644 --- a/drivers/gpu/drm/sun4i/sun8i_mixer.c +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c @@ -588,6 +588,9 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master, regmap_update_bits(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base), SUN8I_MIXER_BLEND_PIPE_CTL_EN_MSK, 0);

• regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_DBUFF,

•      SUN8I_MIXER_GLOBAL_DBUFF_ENABLE);
  

• return 0;

err_disable_bus_clk: