drm/bridge: dw-hdmi: allow forcing vendor phy-type
authorHeiko Stuebner <heiko@sntech.de>
Wed, 12 Sep 2018 12:47:35 +0000 (14:47 +0200)
committerHeiko Stuebner <heiko@sntech.de>
Fri, 28 Sep 2018 09:49:33 +0000 (11:49 +0200)
commit8faff37409fb47d86c839bb2da9f2cff371a3ef1
treed1f250136174568a70e8003418fbd12925f93a65
parent53273b5222082c021ac8889387ffe4cc89206f14
drm/bridge: dw-hdmi: allow forcing vendor phy-type

In some IP implementations the reading of the phy-type may be broken.
One example are the Rockchip rk3228 and rk3328 socs that use a separate
vendor-type phy from Innosilicon but still report the HDMI20_TX type.

So allow the glue driver to force the vendor-phy for these cases.
In the future it may be necessary to allow forcing other types, but
for now we'll keep it simply to the case actually seen in the wild.

changes in v3:
- only allow forcing vendor type, as suggested by Laurent

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Zheng Yang <zhengyang@rock-chips.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180912124740.20343-2-heiko@sntech.de
Link: https://patchwork.freedesktop.org/patch/msgid/20180912124740.20343-3-heiko@sntech.de
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
include/drm/bridge/dw_hdmi.h