drm/i915: Use RSEN instead of HTPLG for tfp410 monitor detection.

commit f458823b864c6def488f951a79986fa205aba4f1 upstream.

Presence detection of a digital monitor seems not to be reliable using
the HTPLG bit.

Dave Müller <dave.mueller@gmx.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/gpu/drm/i915/dvo_tfp410.c b/drivers/gpu/drm/i915/dvo_tfp410.c
index 9ecc907384ec339d312ca31c5ea26a2a0636aedf..16dce8479e7fad5d0406776f1a828065fff58004 100644 (file)
--- a/drivers/gpu/drm/i915/dvo_tfp410.c
+++ b/drivers/gpu/drm/i915/dvo_tfp410.c
@@ -214,7 +214,7 @@ static enum drm_connector_status tfp410_detect(struct intel_dvo_device *dvo)
        uint8_t ctl2;
 
        if (tfp410_readb(dvo, TFP410_CTL_2, &ctl2)) {
-               if (ctl2 & TFP410_CTL_2_HTPLG)
+               if (ctl2 & TFP410_CTL_2_RSEN)
                        ret = connector_status_connected;
                else
                        ret = connector_status_disconnected;