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drm/i915/hsw: Use the DPLL ID when calculating DPLL clock

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Instead of converting DPLL ID to CLK_SEL to identify the DPLL use the
DPLL ID directly for this.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200226203455.23032-6-imre.deak@intel.com
This commit is contained in:
Imre Deak 2020-02-26 22:34:47 +02:00
parent 4ac7df1775
commit 6cbcd57680
1 changed files with 8 additions and 9 deletions
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17
drivers/gpu/drm/i915/display/intel_ddi.c
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@ -1729,26 +1729,25 @@ static void hsw_ddi_clock_get(struct intel_encoder *encoder,
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
int link_clock = 0;
u32 val, pll;
u32 pll;
val = hsw_pll_to_ddi_pll_sel(pipe_config->shared_dpll);
switch (val & PORT_CLK_SEL_MASK) {
case PORT_CLK_SEL_LCPLL_810:
switch (pipe_config->shared_dpll->info->id) {
case DPLL_ID_LCPLL_810:
link_clock = 81000;
break;
case PORT_CLK_SEL_LCPLL_1350:
case DPLL_ID_LCPLL_1350:
link_clock = 135000;
break;
case PORT_CLK_SEL_LCPLL_2700:
case DPLL_ID_LCPLL_2700:
link_clock = 270000;
break;
case PORT_CLK_SEL_WRPLL1:
case DPLL_ID_WRPLL1:
link_clock = hsw_ddi_calc_wrpll_link(dev_priv, WRPLL_CTL(0));
break;
case PORT_CLK_SEL_WRPLL2:
case DPLL_ID_WRPLL2:
link_clock = hsw_ddi_calc_wrpll_link(dev_priv, WRPLL_CTL(1));
break;
case PORT_CLK_SEL_SPLL:
case DPLL_ID_SPLL:
pll = intel_de_read(dev_priv, SPLL_CTL) & SPLL_FREQ_MASK;
if (pll == SPLL_FREQ_810MHz)
link_clock = 81000;