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drm/bridge/synopsys: Get mc_clkdis value from uboot.

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When uboot logo is enabled, hdmi will not be setup again.
In this case, kernel driver will set wrong mc_clkdis value
when cec enable. So mc_clkdis should be got from uboot.

Change-Id: Idb9984d981489287966f2719f6ed4c729a183b58
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
This commit is contained in:
Algea Cao 2018-01-19 14:44:09 +08:00 • committed by Tao Huang
commit d9bb4b5cc1
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
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@ -2627,6 +2627,7 @@ dw_hdmi_connector_atomic_flush(struct drm_connector *connector,
hdmi->hdmi_data.video_mode.mpixelclock = mode->clock;
hdmi->hdmi_data.video_mode.previous_pixelclock = mode->clock;
hdmi->hdmi_data.video_mode.previous_tmdsclock = mode->clock;
hdmi->mc_clkdis = hdmi_readb(hdmi, HDMI_MC_CLKDIS);
hdmi->phy.enabled = true;
return;
}