drm: bridge: analogix/dp: try force hpd after plug in lookup failed

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Some edp screen do not have hpd signal, so we can't just return
failed when hpd plug in detect failed.

This is an hardware property, so we need add a devicetree property
"analogix,need-force-hpd" to indicate this sutiation.

Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>

...

This commit is contained in:

Yakir Yang 2016-02-15 19:11:15 +08:00

parent 0d0abd894e

commit 5cff007c58

6 changed files with 46 additions and 6 deletions

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4

Documentation/devicetree/bindings/display/bridge/analogix_dp.txt

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1

Documentation/devicetree/bindings/display/exynos/exynos_dp.txt

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1

Documentation/devicetree/bindings/display/rockchip/analogix_dp-rockchip.txt

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35

drivers/gpu/drm/bridge/analogix/analogix_dp_core.c

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2

drivers/gpu/drm/bridge/analogix/analogix_dp_core.h

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9

drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c

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