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drm/radeon/kms: adjust pll settings for tv

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May fix fdo bug 26582.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2010-04-09 15:31:56 -04:00 committed by Dave Airlie
parent 08d075116d
commit a1a4b23b66
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/radeon/atombios_crtc.c
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@ -521,6 +521,10 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
/* DVO wants 2x pixel clock if the DVO chip is in 12 bit mode */
if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1)
adjusted_clock = mode->clock * 2;
if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT)) {
pll->algo = PLL_ALGO_LEGACY;
pll->flags |= RADEON_PLL_PREFER_CLOSEST_LOWER;
}
} else {
if (encoder->encoder_type != DRM_MODE_ENCODER_DAC)
pll->flags |= RADEON_PLL_NO_ODD_POST_DIV;