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Message-Id: <20131202191202.236756330@linuxfoundation.org>
Date:	Mon,  2 Dec 2013 11:12:30 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Alex Deucher <alexander.deucher@....com>,
	Rafał Miłecki <zajec5@...il.com>
Subject: [PATCH 3.10 167/173] drm/radeon: re-enable sw ACR support on pre-DCE4

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@....com>

commit b852c985010a77c850b7548d64bbb964ca462b02 upstream.

HW ACR support may have issues on some older chips, so
use SW ACR for now until we've tested further.

Signed-off-by: Alex Deucher <alexander.deucher@....com>
CC: Rafał Miłecki <zajec5@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/radeon/r600_hdmi.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -320,6 +320,7 @@ void r600_hdmi_setmode(struct drm_encode
 	}
 
 	WREG32(HDMI0_ACR_PACKET_CONTROL + offset,
+	       HDMI0_ACR_SOURCE | /* select SW CTS value - XXX verify that hw CTS works on all families */
 	       HDMI0_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */
 
 	WREG32(HDMI0_VBI_PACKET_CONTROL + offset,


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