diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ddi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 53 |
1 files changed, 41 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 4bad0f72401..cedf4ab5ff1 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -84,7 +84,8 @@ static enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder) * in either FDI or DP modes only, as HDMI connections will work with both * of those */ -void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port, bool use_fdi_mode) +static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port, + bool use_fdi_mode) { struct drm_i915_private *dev_priv = dev->dev_private; u32 reg; @@ -114,16 +115,17 @@ void intel_prepare_ddi(struct drm_device *dev) { int port; - if (IS_HASWELL(dev)) { - for (port = PORT_A; port < PORT_E; port++) - intel_prepare_ddi_buffers(dev, port, false); + if (!HAS_DDI(dev)) + return; - /* DDI E is the suggested one to work in FDI mode, so program is as such by - * default. It will have to be re-programmed in case a digital DP output - * will be detected on it - */ - intel_prepare_ddi_buffers(dev, PORT_E, true); - } + for (port = PORT_A; port < PORT_E; port++) + intel_prepare_ddi_buffers(dev, port, false); + + /* DDI E is the suggested one to work in FDI mode, so program is as such + * by default. It will have to be re-programmed in case a digital DP + * output will be detected on it + */ + intel_prepare_ddi_buffers(dev, PORT_E, true); } static const long hsw_ddi_buf_ctl_values[] = { @@ -675,6 +677,7 @@ static void intel_ddi_mode_set(struct drm_encoder *encoder, DRM_DEBUG_KMS("Preparing DDI mode for Haswell on port %c, pipe %c\n", port_name(port), pipe_name(pipe)); + intel_crtc->eld_vld = false; if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) { struct intel_dp *intel_dp = enc_to_intel_dp(encoder); @@ -985,7 +988,13 @@ void intel_ddi_enable_pipe_func(struct drm_crtc *crtc) if (cpu_transcoder == TRANSCODER_EDP) { switch (pipe) { case PIPE_A: - temp |= TRANS_DDI_EDP_INPUT_A_ONOFF; + /* Can only use the always-on power well for eDP when + * not using the panel fitter, and when not using motion + * blur mitigation (which we don't support). */ + if (dev_priv->pch_pf_size) + temp |= TRANS_DDI_EDP_INPUT_A_ONOFF; + else + temp |= TRANS_DDI_EDP_INPUT_A_ON; break; case PIPE_B: temp |= TRANS_DDI_EDP_INPUT_B_ONOFF; @@ -1069,7 +1078,7 @@ bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector) if (port == PORT_A) cpu_transcoder = TRANSCODER_EDP; else - cpu_transcoder = pipe; + cpu_transcoder = (enum transcoder) pipe; tmp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); @@ -1285,10 +1294,14 @@ static void intel_ddi_post_disable(struct intel_encoder *intel_encoder) static void intel_enable_ddi(struct intel_encoder *intel_encoder) { struct drm_encoder *encoder = &intel_encoder->base; + struct drm_crtc *crtc = encoder->crtc; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + int pipe = intel_crtc->pipe; struct drm_device *dev = encoder->dev; struct drm_i915_private *dev_priv = dev->dev_private; enum port port = intel_ddi_get_encoder_port(intel_encoder); int type = intel_encoder->type; + uint32_t tmp; if (type == INTEL_OUTPUT_HDMI) { /* In HDMI/DVI mode, the port width, and swing/emphasis values @@ -1301,18 +1314,34 @@ static void intel_enable_ddi(struct intel_encoder *intel_encoder) ironlake_edp_backlight_on(intel_dp); } + + if (intel_crtc->eld_vld) { + tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); + tmp |= ((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) << (pipe * 4)); + I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp); + } } static void intel_disable_ddi(struct intel_encoder *intel_encoder) { struct drm_encoder *encoder = &intel_encoder->base; + struct drm_crtc *crtc = encoder->crtc; + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + int pipe = intel_crtc->pipe; int type = intel_encoder->type; + struct drm_device *dev = encoder->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + uint32_t tmp; if (type == INTEL_OUTPUT_EDP) { struct intel_dp *intel_dp = enc_to_intel_dp(encoder); ironlake_edp_backlight_off(intel_dp); } + + tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); + tmp &= ~((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) << (pipe * 4)); + I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp); } int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv) |