video/drm: display: Change yuv420 mode function to global function

Change-Id: I04b770a0a624235998edf1d869f686e57fdbfba7
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>

video/drm: display: sync mode convert funcs with kernel in split mode

Signed-off-by: Damon Ding <damon.ding@rock-chips.com>
Change-Id: I63178d79c01d42a27df855c778439543aedc4a59

video/drm: display: sync func drm_mode_set_crtcinfo() with kernel

Signed-off-by: Damon Ding <damon.ding@rock-chips.com>
Change-Id: I56ceaa5a412d815522865cafac5acc1d8becd2ba

video/drm: add support HDMI display from SPL

The SPL display only can support at rk3528 hdmi output,
you can add the following config to enable SPL display:

CONFIG_ARM_SMP=y
CONFIG_MP_BOOT=y
CONFIG

video/drm: add support HDMI display from SPL

The SPL display only can support at rk3528 hdmi output,
you can add the following config to enable SPL display:

CONFIG_ARM_SMP=y
CONFIG_MP_BOOT=y
CONFIG_ARMV8_SET_SMPEN=y
CONFIG_SPL_DM_VIDEO=y
CONFIG_SPL_I2C_EDID=y

Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
Change-Id: I4fea0900b5f6714d8ca573ea715797d513c3bb03

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