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| author | Alex Deucher <alexdeucher@gmail.com> | 2010-02-02 12:05:01 -0500 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-02-09 09:31:21 +1000 |
| commit | 7c27f87d2bde885e9bcda74c208a7aae8bef8e76 (patch) | |
| tree | 5490fe9d6ed83bc36c2ac3da7dedee4de3730806 /drivers/gpu/drm/radeon/atombios_crtc.c | |
| parent | 4612dc97991a09e1a9e4d5d981e16589d7cb150c (diff) | |
| download | talos-op-linux-7c27f87d2bde885e9bcda74c208a7aae8bef8e76.tar.gz talos-op-linux-7c27f87d2bde885e9bcda74c208a7aae8bef8e76.zip | |
drm/radeon/kms: rework pll algo selection
Rework the pll algo selection so that the pll algo
in use can be selected more easily. This allows
us to select different pll divider selection algos
for specific monitors that work better with one algo
or the other. This is needed for the next patch which
adds an LVDS pll quirk for a specific notebook.
Signed-off-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 | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index af464e351fbd..4bae5511ea60 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -424,6 +424,15 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc, /* reset the pll flags */ pll->flags = 0; + /* select the PLL algo */ + if (ASIC_IS_AVIVO(rdev)) { + if (radeon_new_pll) + pll->algo = PLL_ALGO_AVIVO; + else + pll->algo = PLL_ALGO_LEGACY; + } else + pll->algo = PLL_ALGO_LEGACY; + if (ASIC_IS_AVIVO(rdev)) { if ((rdev->family == CHIP_RS600) || (rdev->family == CHIP_RS690) || @@ -452,6 +461,11 @@ 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; + /* LVDS PLL quirks */ + if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) { + struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; + pll->algo = dig->pll_algo; + } } else { if (encoder->encoder_type != DRM_MODE_ENCODER_DAC) pll->flags |= RADEON_PLL_NO_ODD_POST_DIV; @@ -550,18 +564,8 @@ void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode) /* adjust pixel clock as needed */ adjusted_clock = atombios_adjust_pll(crtc, mode, pll); - if (ASIC_IS_AVIVO(rdev)) { - if (radeon_new_pll) - radeon_compute_pll_avivo(pll, adjusted_clock, &pll_clock, - &fb_div, &frac_fb_div, - &ref_div, &post_div); - else - radeon_compute_pll(pll, adjusted_clock, &pll_clock, - &fb_div, &frac_fb_div, - &ref_div, &post_div); - } else - radeon_compute_pll(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div, - &ref_div, &post_div); + radeon_compute_pll(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div, + &ref_div, &post_div); index = GetIndexIntoMasterTable(COMMAND, SetPixelClock); atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, |
