linux-kernel - [PATCH 3.14 81/92] drm/radeon: fix doublescan modes (v2)

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Message-Id: <20150502190117.626427928@linuxfoundation.org>
Date:	Sat,  2 May 2015 21:03:36 +0200
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>
Subject: [PATCH 3.14 81/92] drm/radeon: fix doublescan modes (v2)

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

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

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

commit fd99a0943ffaa0320ea4f69d09ed188f950c0432 upstream.

Use the correct flags for atom.

v2: handle DRM_MODE_FLAG_DBLCLK

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

---
 drivers/gpu/drm/radeon/atombios_crtc.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -330,8 +330,10 @@ atombios_set_crtc_dtd_timing(struct drm_
 		misc |= ATOM_COMPOSITESYNC;
 	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 		misc |= ATOM_INTERLACE;
-	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
 		misc |= ATOM_DOUBLE_CLOCK_MODE;
+	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+		misc |= ATOM_H_REPLICATIONBY2 | ATOM_V_REPLICATIONBY2;
 
 	args.susModeMiscInfo.usAccess = cpu_to_le16(misc);
 	args.ucCRTC = radeon_crtc->crtc_id;
@@ -374,8 +376,10 @@ static void atombios_crtc_set_timing(str
 		misc |= ATOM_COMPOSITESYNC;
 	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 		misc |= ATOM_INTERLACE;
-	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
 		misc |= ATOM_DOUBLE_CLOCK_MODE;
+	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+		misc |= ATOM_H_REPLICATIONBY2 | ATOM_V_REPLICATIONBY2;
 
 	args.susModeMiscInfo.usAccess = cpu_to_le16(misc);
 	args.ucCRTC = radeon_crtc->crtc_id;


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