Messages in this thread Patch in this message | | | From | roman.stratiienko@globallo ... | Subject | [PATCH v2 4/4] drm/sun4i: Update mixer's internal registers after initialization | Date | Sun, 29 Dec 2019 18:28:28 +0200 |
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From: Roman Stratiienko <roman.stratiienko@globallogic.com>
At system start blink of u-boot ghost framebuffer can be observed. Fix it.
Fixes: 9d75b8c0b999 ("drm/sun4i: add support for Allwinner DE2 mixers") Signed-off-by: Roman Stratiienko <roman.stratiienko@globallogic.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net> --- v2: - Picked 'Reviewed-by' line - Added 'Fixes' line --- 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 5d90a95ff855..86711d8a9c84 100644 --- a/drivers/gpu/drm/sun4i/sun8i_mixer.c +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c @@ -576,6 +576,9 @@ 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: -- 2.17.1
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