From: Dave Müller <dave.mueller@gmx.ch>
Date: Fri, 4 Jun 2010 23:39:59 +0000 (-0700)
Subject: drm/i915: Use RSEN instead of HTPLG for tfp410 monitor detection.
X-Git-Tag: firefly_0821_release~10186^2~1190
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f403905d43dd780060cb4d2334e0c79c8c8f8bb0;p=firefly-linux-kernel-4.4.55.git

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 9ecc907384ec..16dce8479e7f 100644
--- 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;