提交 a81b31e9 编写于 作者: T Thomas Reim 提交者: Dave Airlie

drm/radeon: Extended DDC Probing for ECS A740GM-M DVI-D Connector

   ECS A740GM-M with ATI RADEON 2100 sends data to i2c bus
   for a DVI connector that is not implemented/existent on the board.

   Fix by applying extented DDC probing for this connector.

   Requires [PATCH] drm/radeon: Extended DDC Probing for Connectors
   with Improperly Wired DDC Lines

   Tested for kernel 2.6.38 on Asus ECS A740GM-M board

   BugLink: http://bugs.launchpad.net/bugs/810926

Cc: <stable@kernel.org>
Signed-off-by: NThomas Reim <reimth@gmail.com>
Reviewed-by: NAlex Deucher <alexdeucher@gmail.com>
Acked-by: NStephen Michaels <Stephen.Micheals@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>
上级 d522d9cc
...@@ -455,6 +455,15 @@ static bool radeon_connector_needs_extended_probe(struct radeon_device *dev, ...@@ -455,6 +455,15 @@ static bool radeon_connector_needs_extended_probe(struct radeon_device *dev,
(supported_device == ATOM_DEVICE_DFP2_SUPPORT)) (supported_device == ATOM_DEVICE_DFP2_SUPPORT))
return true; return true;
} }
/* ECS A740GM-M with ATI RADEON 2100 sends data to i2c bus
* for a DVI connector that is not implemented */
if ((dev->pdev->device == 0x796e) &&
(dev->pdev->subsystem_vendor == 0x1019) &&
(dev->pdev->subsystem_device == 0x2615)) {
if ((connector_type == DRM_MODE_CONNECTOR_DVID) &&
(supported_device == ATOM_DEVICE_DFP2_SUPPORT))
return true;
}
/* Default: no EDID header probe required for DDC probing */ /* Default: no EDID header probe required for DDC probing */
return false; return false;
......
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