From: Sean Paul seanpaul@chromium.org
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 --- 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; }