drm/radeon/kms: don't use bios dividers for lvds on r4xx
R4xx cards don't have lvds pll dividers since they use atom. should fix rh bug 541562 Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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d684076627
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1 changed files with 12 additions and 10 deletions
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@ -796,18 +796,20 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
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if (encoder->encoder_type != DRM_MODE_ENCODER_DAC)
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pll_flags |= RADEON_PLL_NO_ODD_POST_DIV;
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if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) {
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struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
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struct radeon_encoder_lvds *lvds = (struct radeon_encoder_lvds *)radeon_encoder->enc_priv;
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if (lvds) {
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if (lvds->use_bios_dividers) {
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pll_ref_div = lvds->panel_ref_divider;
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pll_fb_post_div = (lvds->panel_fb_divider |
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(lvds->panel_post_divider << 16));
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htotal_cntl = 0;
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use_bios_divs = true;
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if (!rdev->is_atom_bios) {
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struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
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struct radeon_encoder_lvds *lvds = (struct radeon_encoder_lvds *)radeon_encoder->enc_priv;
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if (lvds) {
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if (lvds->use_bios_dividers) {
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pll_ref_div = lvds->panel_ref_divider;
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pll_fb_post_div = (lvds->panel_fb_divider |
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(lvds->panel_post_divider << 16));
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htotal_cntl = 0;
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use_bios_divs = true;
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}
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}
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pll_flags |= RADEON_PLL_USE_REF_DIV;
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}
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pll_flags |= RADEON_PLL_USE_REF_DIV;
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}
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}
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}
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