diff options
| author | Sonika Jindal <sonika.jindal@intel.com> | 2015-02-21 11:12:13 +0530 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-03-17 22:29:57 +0100 |
| commit | c3346ef688b9956003cd357fef0a2b8c06e72ee8 (patch) | |
| tree | d8cdeffca6910fa6ee0bcc1f402b7a1bcb9fc250 /drivers/gpu | |
| parent | a8f3ef6197979824ee117d89a26c57e347c62731 (diff) | |
drm/i915/skl: Program PLL for edp1.4 intermediate frequencies
v2: Making the link_clock half in switch inline with the DPLL_CTRL1_* macros
(Ville)
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index a99f7fff47a8..33d58773cfe5 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1080,7 +1080,7 @@ intel_dp_connector_unregister(struct intel_connector *intel_connector) } static void -skl_edp_set_pll_config(struct intel_crtc_state *pipe_config, int link_bw) +skl_edp_set_pll_config(struct intel_crtc_state *pipe_config, int link_clock) { u32 ctrl1; @@ -1089,19 +1089,35 @@ skl_edp_set_pll_config(struct intel_crtc_state *pipe_config, int link_bw) pipe_config->dpll_hw_state.cfgcr2 = 0; ctrl1 = DPLL_CTRL1_OVERRIDE(SKL_DPLL0); - switch (link_bw) { - case DP_LINK_BW_1_62: + switch (link_clock / 2) { + case 81000: ctrl1 |= DPLL_CRTL1_LINK_RATE(DPLL_CRTL1_LINK_RATE_810, SKL_DPLL0); break; - case DP_LINK_BW_2_7: + case 135000: ctrl1 |= DPLL_CRTL1_LINK_RATE(DPLL_CRTL1_LINK_RATE_1350, SKL_DPLL0); break; - case DP_LINK_BW_5_4: + case 270000: ctrl1 |= DPLL_CRTL1_LINK_RATE(DPLL_CRTL1_LINK_RATE_2700, SKL_DPLL0); break; + case 162000: + ctrl1 |= DPLL_CRTL1_LINK_RATE(DPLL_CRTL1_LINK_RATE_1620, + SKL_DPLL0); + break; + /* TBD: For DP link rates 2.16 GHz and 4.32 GHz, VCO is 8640 which + results in CDCLK change. Need to handle the change of CDCLK by + disabling pipes and re-enabling them */ + case 108000: + ctrl1 |= DPLL_CRTL1_LINK_RATE(DPLL_CRTL1_LINK_RATE_1080, + SKL_DPLL0); + break; + case 216000: + ctrl1 |= DPLL_CRTL1_LINK_RATE(DPLL_CRTL1_LINK_RATE_2160, + SKL_DPLL0); + break; + } pipe_config->dpll_hw_state.ctrl1 = ctrl1; } @@ -1396,7 +1412,7 @@ found: } if (IS_SKYLAKE(dev) && is_edp(intel_dp)) - skl_edp_set_pll_config(pipe_config, intel_dp->link_bw); + skl_edp_set_pll_config(pipe_config, supported_rates[clock]); else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) hsw_dp_set_ddi_pll_sel(pipe_config, intel_dp->link_bw); else |