diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2015-08-11 20:21:46 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2015-09-01 12:31:44 +0300 |
| commit | 7e6313a2516dbcd168f4ae36f0abe1a9227106b5 (patch) | |
| tree | f18414aa1794f9d3ef5e66bff92254a6548b989a /drivers/gpu/drm/i915/intel_ddi.c | |
| parent | 69f92f67b68ab7028ffe15f0eea76b59f8859383 (diff) | |
| download | linux-7e6313a2516dbcd168f4ae36f0abe1a9227106b5.tar.xz | |
drm/i915: Don't use link_bw for PLL setup
Use port_clock instead of link_bw when picking the PLL parameters for
DP. link_bw may be zero with an eDP 1.4 sink that supports
DP_LINK_RATE_SET so we shouldn't use it for anything other than feed it
to the sink appropriately.
v2: Fix typo in commit message (Sivakumar)
Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[Jani: cherry-picked from future.]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ddi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 19004557c868..61575f67a626 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -1554,17 +1554,14 @@ skl_ddi_pll_select(struct intel_crtc *intel_crtc, DPLL_CFGCR2_PDIV(wrpll_params.pdiv) | wrpll_params.central_freq; } else if (intel_encoder->type == INTEL_OUTPUT_DISPLAYPORT) { - struct drm_encoder *encoder = &intel_encoder->base; - struct intel_dp *intel_dp = enc_to_intel_dp(encoder); - - switch (intel_dp->link_bw) { - case DP_LINK_BW_1_62: + switch (crtc_state->port_clock / 2) { + case 81000: ctrl1 |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_810, 0); break; - case DP_LINK_BW_2_7: + case 135000: ctrl1 |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_1350, 0); break; - case DP_LINK_BW_5_4: + case 270000: ctrl1 |= DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_2700, 0); break; } |