[PATCH V2 1/9] drm/exynos: dp: support hotplug detection via GPIO

[Jingoo Han]

On Tuesday, April 22, 2014 7:39 AM, Ajay Kumar wrote:
> 
> From: Andrew Bresticker <abrestic at chromium.org>
> 
> Certain bridge chips use a GPIO to indicate the cable status instead
> of the I_DP_HPD pin.  This adds an optional device-tree property,
> "samsung,hpd-gpio", to the exynos-dp controller which indicates that
> the specified GPIO should be used for hotplug detection.
> The GPIO is then set up as an edge-triggered interrupt where the
> rising edge indicates hotplug-in and the falling edge indicates hotplug-out.
> 
> Signed-off-by: Andrew Bresticker <abrestic at chromium.org>
> Signed-off-by: Rahul Sharma <rahul.sharma at samsung.com>
> Signed-off-by: Ajay Kumar <ajaykumar.rs at samsung.com>

Acked-by: Jingoo Han <jg1.han at samsung.com>

Best regards,
Jingoo Han

> ---
> Changes since V1:
> 	Address reiew comments from Jingoo Han
> 
>  .../devicetree/bindings/video/exynos_dp.txt        |    4 ++
>  drivers/gpu/drm/exynos/exynos_dp_core.c            |   32 ++++++++++++--
>  drivers/gpu/drm/exynos/exynos_dp_core.h            |    1 +
>  drivers/gpu/drm/exynos/exynos_dp_reg.c             |   44 ++++++++++++++------
>  4 files changed, 66 insertions(+), 15 deletions(-)

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