diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index bdc898ef5b64..9395878abc56 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1926,6 +1926,18 @@ void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv) I915_WRITE(TRANS_CHICKEN2(PIPE_A), val); } +enum transcoder intel_crtc_pch_transcoder(struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + + WARN_ON(!crtc->config->has_pch_encoder); + + if (HAS_PCH_LPT(dev_priv)) + return TRANSCODER_A; + else + return (enum transcoder) crtc->pipe; +} + /** * intel_enable_pipe - enable a pipe, asserting requirements * @crtc: crtc responsible for the pipe @@ -1939,7 +1951,6 @@ static void intel_enable_pipe(struct intel_crtc *crtc) struct drm_i915_private *dev_priv = to_i915(dev); enum pipe pipe = crtc->pipe; enum transcoder cpu_transcoder = crtc->config->cpu_transcoder; - enum pipe pch_transcoder; i915_reg_t reg; u32 val; @@ -1949,11 +1960,6 @@ static void intel_enable_pipe(struct intel_crtc *crtc) assert_cursor_disabled(dev_priv, pipe); assert_sprites_disabled(dev_priv, pipe); - if (HAS_PCH_LPT(dev_priv)) - pch_transcoder = TRANSCODER_A; - else - pch_transcoder = pipe; - /* * A pipe without a PLL won't actually be able to drive bits from * a plane. On ILK+ the pipe PLLs are integrated, so we don't @@ -1967,7 +1973,8 @@ static void intel_enable_pipe(struct intel_crtc *crtc) } else { if (crtc->config->has_pch_encoder) { /* if driving the PCH, we need FDI enabled */ - assert_fdi_rx_pll_enabled(dev_priv, pch_transcoder); + assert_fdi_rx_pll_enabled(dev_priv, + (enum pipe) intel_crtc_pch_transcoder(crtc)); assert_fdi_tx_pll_enabled(dev_priv, (enum pipe) cpu_transcoder); } |