Hi! Dne sobota, 28. december 2019 ob 21:28:18 CET je roman.stratiienko@xxxxxxxxxxxxxxx napisal(a): > From: Roman Stratiienko <roman.stratiienko@xxxxxxxxxxxxxxx> > > At system start blink of u-boot ghost framebuffer can be observed. > Fix it. Reviewed-by: Jernej Skrabec <jernej.skrabec@xxxxxxxx> 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@xxxxxxxxxxxxxxx> > --- > 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: _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
