On Tuesday, April 22, 2014 4:14 PM, Jingoo Han wrote:
On Tuesday, April 22, 2014 7:39 AM, Ajay Kumar wrote:
From: Andrew Bresticker abrestic@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@chromium.org Signed-off-by: Rahul Sharma rahul.sharma@samsung.com Signed-off-by: Ajay Kumar ajaykumar.rs@samsung.com
Acked-by: Jingoo Han jg1.han@samsung.com
Hi Inki Dae,
Actually, this patch is NOT related to other patches for bridge chip support. So, would you apply this patch into your exynos drm git with my Acked-by?
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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