On Wed, Jul 20, 2011 at 4:34 AM, <reimth at googlemail.com> wrote:
> From: Thomas Reim <reimth at gmail.com>
>
> ? 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: Fix Asus M2A-VM HDMI EDID error flooding
> problem
>
> ? BugLink: http://bugs.launchpad.net/bugs/810926
>
> Signed-off-by: Thomas Reim <reimth at gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
> ---
> ?drivers/gpu/drm/radeon/radeon_connectors.c | ? ?9 +++++++++
> ?1 files changed, 9 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c
> b/drivers/gpu/drm/radeon/radeon_connectors.c
> index 2e70be2..82dacc6 100644
> --- a/drivers/gpu/drm/radeon/radeon_connectors.c
> +++ b/drivers/gpu/drm/radeon/radeon_connectors.c
> @@ -449,6 +449,15 @@ static bool radeon_connector_needs_extended_probe(struct
> radeon_device *dev,
> ? ? ? ? ? ? ? ? ? ?(supported_device == ATOM_DEVICE_DFP2_SUPPORT))
> ? ? ? ? ? ? ? ? ? ? ? ?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 */
> ? ? ? ?return false;
> --
> 1.7.1
>
>
