diff options
author | Libin Yang <libin.yang@linux.intel.com> | 2016-09-19 18:24:41 -0700 |
---|---|---|
committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2016-09-21 09:32:25 -0700 |
commit | 3708d5e082c39913b26bd06845ffe80a0b689e2a (patch) | |
tree | b93a6b530af47b0fdb5abb9ec0b1c326dafba8fd | |
parent | f1a3acea26f89de17399726e1451fc7bb5376573 (diff) | |
download | linux-3708d5e082c39913b26bd06845ffe80a0b689e2a.tar.bz2 |
drm/i915: start adding dp mst audio
(This patch is developed by Dave Airlie <airlied@redhat.com> originally)
This patch adds support for DP MST audio in i915.
Enable audio codec when DP MST is enabled if has_audio flag is set.
Disable audio codec when DP MST is disabled if has_audio flag is set.
Another separated patches to support DP MST audio will be implemented
in audio driver.
v2:
Rebased.
Signed-off-by: Libin Yang <libin.yang@linux.intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Lyude <cpaul@redhat.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1474334681-22690-6-git-send-email-dhinakaran.pandiyan@intel.com
-rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 19 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 20 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/intel_dp_mst.c | 18 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 2 |
4 files changed, 53 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index d3f83c5ab70b..3c6a06df3dc9 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2888,6 +2888,20 @@ static void intel_dp_info(struct seq_file *m, &intel_dp->aux); } +static void intel_dp_mst_info(struct seq_file *m, + struct intel_connector *intel_connector) +{ + struct intel_encoder *intel_encoder = intel_connector->encoder; + struct intel_dp_mst_encoder *intel_mst = + enc_to_mst(&intel_encoder->base); + struct intel_digital_port *intel_dig_port = intel_mst->primary; + struct intel_dp *intel_dp = &intel_dig_port->dp; + bool has_audio = drm_dp_mst_port_has_audio(&intel_dp->mst_mgr, + intel_connector->port); + + seq_printf(m, "\taudio support: %s\n", yesno(has_audio)); +} + static void intel_hdmi_info(struct seq_file *m, struct intel_connector *intel_connector) { @@ -2930,7 +2944,10 @@ static void intel_connector_info(struct seq_file *m, switch (connector->connector_type) { case DRM_MODE_CONNECTOR_DisplayPort: case DRM_MODE_CONNECTOR_eDP: - intel_dp_info(m, intel_connector); + if (intel_encoder->type == INTEL_OUTPUT_DP_MST) + intel_dp_mst_info(m, intel_connector); + else + intel_dp_info(m, intel_connector); break; case DRM_MODE_CONNECTOR_LVDS: if (intel_encoder->type == INTEL_OUTPUT_LVDS) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 35f0b7c9d0a6..07cba6c0b1b5 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -2227,6 +2227,19 @@ void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp) udelay(600); } +bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv, + struct intel_crtc *intel_crtc) +{ + u32 temp; + + if (intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_AUDIO)) { + temp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); + if (temp & AUDIO_OUTPUT_ENABLE(intel_crtc->pipe)) + return true; + } + return false; +} + void intel_ddi_get_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config) { @@ -2292,11 +2305,8 @@ void intel_ddi_get_config(struct intel_encoder *encoder, break; } - if (intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_AUDIO)) { - temp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); - if (temp & AUDIO_OUTPUT_ENABLE(intel_crtc->pipe)) - pipe_config->has_audio = true; - } + pipe_config->has_audio = + intel_ddi_is_audio_enabled(dev_priv, intel_crtc); if (encoder->type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp.bpp && pipe_config->pipe_bpp > dev_priv->vbt.edp.bpp) { diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c index 3ffbd69e4551..2fc9f81fdd41 100644 --- a/drivers/gpu/drm/i915/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/intel_dp_mst.c @@ -37,6 +37,8 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder, struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base); struct intel_digital_port *intel_dig_port = intel_mst->primary; struct intel_dp *intel_dp = &intel_dig_port->dp; + struct intel_connector *connector = + to_intel_connector(conn_state->connector); struct drm_atomic_state *state; int bpp; int lane_count, slots; @@ -59,6 +61,8 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder, state = pipe_config->base.state; + if (drm_dp_mst_port_has_audio(&intel_dp->mst_mgr, connector->port)) + pipe_config->has_audio = true; mst_pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock, bpp); pipe_config->pbn = mst_pbn; @@ -84,6 +88,7 @@ static void intel_mst_disable_dp(struct intel_encoder *encoder, struct intel_dp *intel_dp = &intel_dig_port->dp; struct intel_connector *connector = to_intel_connector(old_conn_state->connector); + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); int ret; DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links); @@ -94,6 +99,10 @@ static void intel_mst_disable_dp(struct intel_encoder *encoder, if (ret) { DRM_ERROR("failed to update payload %d\n", ret); } + if (old_crtc_state->has_audio) { + intel_audio_codec_disable(encoder); + intel_display_power_put(dev_priv, POWER_DOMAIN_AUDIO); + } } static void intel_mst_post_disable_dp(struct intel_encoder *encoder, @@ -206,6 +215,12 @@ static void intel_mst_enable_dp(struct intel_encoder *encoder, ret = drm_dp_check_act_status(&intel_dp->mst_mgr); ret = drm_dp_update_payload_part2(&intel_dp->mst_mgr); + if (pipe_config->has_audio) { + DRM_DEBUG_DRIVER("Enabling DP audio on pipe %c\n", + pipe_name(intel_mst->pipe)); + intel_display_power_get(dev_priv, POWER_DOMAIN_AUDIO); + intel_audio_codec_enable(encoder); + } } static bool intel_dp_mst_enc_get_hw_state(struct intel_encoder *encoder, @@ -228,6 +243,9 @@ static void intel_dp_mst_enc_get_config(struct intel_encoder *encoder, enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; u32 temp, flags = 0; + pipe_config->has_audio = + intel_ddi_is_audio_enabled(dev_priv, crtc); + temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); if (temp & TRANS_DDI_PHSYNC) flags |= DRM_MODE_FLAG_PHSYNC; diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index f56dad8f222e..5e9c15e5e58d 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -1156,6 +1156,8 @@ bool intel_ddi_pll_select(struct intel_crtc *crtc, void intel_ddi_set_pipe_settings(struct drm_crtc *crtc); void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp); bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector); +bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv, + struct intel_crtc *intel_crtc); void intel_ddi_get_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config); struct intel_encoder * |