On Mon, Jan 11, 2010 at 6:57 PM, Alex Deucher <alexdeuc...@gmail.com> wrote:
> >From 6d980869ef031752dac505c1aacbbe221fb2c6e7 Mon Sep 17 00:00:00 2001
> From: Alex Deucher <alexdeuc...@gmail.com>
> Date: Mon, 11 Jan 2010 12:39:35 -0500
> Subject: [PATCH] drm/radeon/kms/rv100: reject modes >135 Mhz on DVI
>
> Due to heat issues. Fixes fdo bug 25992
>
> Signed-off-by: Alex Deucher <alexdeuc...@gmail.com>
> ---
> drivers/gpu/drm/radeon/radeon_connectors.c | 5 +++++
> 1 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c
> b/drivers/gpu/drm/radeon/radeon_connectors.c
> index 9da10dd..7ee6515 100644
> --- a/drivers/gpu/drm/radeon/radeon_connectors.c
> +++ b/drivers/gpu/drm/radeon/radeon_connectors.c
> @@ -900,11 +900,16 @@ static void radeon_dvi_force(struct
> drm_connector *connector)
> static int radeon_dvi_mode_valid(struct drm_connector *connector,
> struct drm_display_mode *mode)
> {
> + struct drm_device *dev = connector->dev;
> + struct radeon_device *rdev = dev->dev_private;
> struct radeon_connector *radeon_connector =
> to_radeon_connector(connector);
>
> /* XXX check mode bandwidth */
>
> if (radeon_connector->use_digital && (mode->clock > 165000)) {
Is it just me or is this a check for dual link dvi (which would mean
the next check is useless)?
> + /* clocks over 135 MHz have heat issues with DVI on RV100 */
> + if ((rdev->family == CHIP_RV100) && (mode->clock > 135000))
> + return MODE_CLOCK_HIGH;
> if ((radeon_connector->connector_object_id ==
> CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I) ||
> (radeon_connector->connector_object_id ==
> CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) ||
> (radeon_connector->connector_object_id ==
> CONNECTOR_OBJECT_ID_HDMI_TYPE_B))
> --
> 1.5.6.3
>
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