diff options
| author | Dave Airlie <airlied@redhat.com> | 2011-12-20 15:44:30 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-12-20 23:58:27 +0400 |
| commit | 06e4cd64174b48345cbd99179b780a2bf4f96ab6 (patch) | |
| tree | 45e6614b7842ba1d020780999a0e31d48b7e242d /drivers/gpu/drm/radeon/atombios_crtc.c | |
| parent | 4bc22a1aa02a0aae97a905091727345085281e61 (diff) | |
| download | linux-06e4cd64174b48345cbd99179b780a2bf4f96ab6.tar.xz | |
drm/radeon/kms: don't use 0 bpc for adjusting hdmi clock
If the bpc is set from the connector is 0, we then use it later to adjust
in a special case the HDMI pixel clock, however if the bpc is 0, we end up
passing a 0 pixel clock into the code.
I'm not sure if this is the correct answer or if we should avoid the HDMI
clock adjustment for 0 values.
This fixes a divide by 0 on my Llano system with a HDMI monitor and hdmi
audio enabled.
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_crtc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 457bbad3cbf9..0fda830ef806 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -554,7 +554,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc, if (encoder->crtc == crtc) { radeon_encoder = to_radeon_encoder(encoder); connector = radeon_get_connector_for_encoder(encoder); - if (connector) + if (connector && connector->display_info.bpc) bpc = connector->display_info.bpc; encoder_mode = atombios_get_encoder_mode(encoder); if ((radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) || |