drm/edid: Clear the old hdmi info before parsing display info
authorZheng Yang <zhengyang@rock-chips.com>
Wed, 28 Jun 2017 02:58:36 +0000 (10:58 +0800)
committerJianqun Xu <jay.xu@rock-chips.com>
Wed, 28 Jun 2017 07:06:55 +0000 (15:06 +0800)
commit0637d2d637e7a923e59f7de19e3f032327dd0997
tree6d2925c3e58f1b42d246f8bd003b3f96c416d8ba
parentec32dc61d2edb0f550099a7be3dac781e6d09096
drm/edid: Clear the old hdmi info before parsing display info

The current EDID might not support advanced HDMI 2.0 features.
Leaving old hdmi info in the drm_display_info will make display
work not okay, when switching display from HDMI 2.0 device to
HDMI 1.4 device.

Change-Id: Ifaf11a115580a93ec00160d54f0d453842d7b484
Signed-off-by: Zheng Yang <zhengyang@rock-chips.com>
drivers/gpu/drm/drm_edid.c