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drm/i915: add DP support to intel_ddi_pll_mode_set 

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni 2012-10-15 15:51:31 -03:00 committed by Daniel Vetter
parent dae847991a
commit 068759bd6e
1 changed files with 24 additions and 1 deletions
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25
drivers/gpu/drm/i915/intel_ddi.c
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@ -763,6 +763,7 @@ bool intel_ddi_pll_mode_set(struct drm_crtc *crtc, int clock)
{
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc);
struct drm_encoder *encoder = &intel_encoder->base;
struct drm_i915_private *dev_priv = crtc->dev->dev_private;
struct intel_ddi_plls *plls = &dev_priv->ddi_plls;
int type = intel_encoder->type;
@ -773,7 +774,29 @@ bool intel_ddi_pll_mode_set(struct drm_crtc *crtc, int clock)
intel_ddi_put_crtc_pll(crtc);
if (type == INTEL_OUTPUT_HDMI) {
if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) {
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
switch (intel_dp->link_bw) {
case DP_LINK_BW_1_62:
intel_crtc->ddi_pll_sel = PORT_CLK_SEL_LCPLL_810;
break;
case DP_LINK_BW_2_7:
intel_crtc->ddi_pll_sel = PORT_CLK_SEL_LCPLL_1350;
break;
case DP_LINK_BW_5_4:
intel_crtc->ddi_pll_sel = PORT_CLK_SEL_LCPLL_2700;
break;
default:
DRM_ERROR("Link bandwidth %d unsupported\n",
intel_dp->link_bw);
return false;
}
/* We don't need to turn any PLL on because we'll use LCPLL. */
return true;
} else if (type == INTEL_OUTPUT_HDMI) {
int p, n2, r2;
if (plls->wrpll1_refcount == 0) {