From: Sean Paul <[email protected]>

This patch adds a gpio read of hpd during the is_connected
callback. This fixes the case where hdmi is off going into
suspend and the cable is plugged in while suspended. In this
case, the hpd interrupt does not fire and is_connected will
return false.

Signed-off-by: Sean Paul <[email protected]>
Signed-off-by: Rahul Sharma <[email protected]>
---
 drivers/gpu/drm/exynos/exynos_hdmi.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c 
b/drivers/gpu/drm/exynos/exynos_hdmi.c
index b2cbf43..fce2f7b 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -1031,6 +1031,8 @@ static enum drm_connector_status hdmi_detect(struct 
drm_connector *connector,
 {
        struct hdmi_context *hdata = ctx_from_connector(connector);
 
+       hdata->hpd = gpio_get_value(hdata->hpd_gpio);
+
        return hdata->hpd ? connector_status_connected :
                        connector_status_disconnected;
 }
-- 
1.7.9.5

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