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drm/exynos: Read hpd gpio in is_connected callback

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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 <seanpaul@chromium.org>
Signed-off-by: Rahul Sharma <Rahul.Sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Sean Paul 2014-04-03 20:41:03 +05:30 committed by Inki Dae
parent 47d173ffb2
commit 5137c8ca4b
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/exynos/exynos_hdmi.c
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@ -805,6 +805,8 @@ 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;
}