From: Alex Deucher <alexdeucher@gmail.com>
Date: Tue, 17 Nov 2009 22:12:10 +0000 (-0500)
Subject: drm/radeon/kms: add quirk for Acer laptop
X-Git-Tag: firefly_0821_release~9833^2~3227^2~85^2~35
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=3e5f8ff3a9f4e7a71c5371b2122b32faf31c563a;p=firefly-linux-kernel-4.4.55.git

drm/radeon/kms: add quirk for Acer laptop

DVI-I port is actually DVI-D

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index cd07c0e9122c..74bc8dfcb2a2 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -172,6 +172,15 @@ static bool radeon_atom_apply_quirks(struct drm_device *dev,
 		}
 	}
 
+	/* Acer laptop reports DVI-D as DVI-I */
+	if ((dev->pdev->device == 0x95c4) &&
+	    (dev->pdev->subsystem_vendor == 0x1025) &&
+	    (dev->pdev->subsystem_device == 0x013c)) {
+		if ((*connector_type == DRM_MODE_CONNECTOR_DVII) &&
+		    (supported_device == ATOM_DEVICE_DFP1_SUPPORT))
+			*connector_type = DRM_MODE_CONNECTOR_DVID;
+	}
+
 	return true;
 }