drm/vc4: Let gpiolib know that we're OK with sleeping for HPD.

Fixes an error thrown every few seconds when we poll HPD when it's on
a I2C to GPIO expander.

Signed-off-by: Eric Anholt <eric@anholt.net>
Tested-by: Daniel Stone <daniels@collabora.com>

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 56272ca..6bcf51d 100644 (file)
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -166,7 +166,7 @@ vc4_hdmi_connector_detect(struct drm_connector *connector, bool force)
        struct vc4_dev *vc4 = to_vc4_dev(dev);
 
        if (vc4->hdmi->hpd_gpio) {
-               if (gpio_get_value(vc4->hdmi->hpd_gpio))
+               if (gpio_get_value_cansleep(vc4->hdmi->hpd_gpio))
                        return connector_status_connected;
                else
                        return connector_status_disconnected;