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drm/i915: start adding dp mst audio

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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.

Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Libin Yang <libin.yang@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449036584-105393-2-git-send-email-libin.yang@linux.intel.com
This commit is contained in:
Libin Yang
2015-12-02 14:09:44 +08:00
committed by Daniel Vetter
parent ef8f9bea13
commit 3d52ccf52f
5 changed files with 61 additions and 8 deletions
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9
drivers/gpu/drm/i915/intel_audio.c
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@@ -262,7 +262,8 @@ static void hsw_audio_codec_disable(struct intel_encoder *encoder)
tmp |= AUD_CONFIG_N_PROG_ENABLE;
tmp &= ~AUD_CONFIG_UPPER_N_MASK;
tmp &= ~AUD_CONFIG_LOWER_N_MASK;
if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT))
if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT) ||
intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DP_MST))
tmp |= AUD_CONFIG_N_VALUE_INDEX;
I915_WRITE(HSW_AUD_CFG(pipe), tmp);
@@ -474,7 +475,8 @@ static void ilk_audio_codec_enable(struct drm_connector *connector,
tmp &= ~AUD_CONFIG_N_VALUE_INDEX;
tmp &= ~AUD_CONFIG_N_PROG_ENABLE;
tmp &= ~AUD_CONFIG_PIXEL_CLOCK_HDMI_MASK;
if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT))
if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT) ||
intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DP_MST))
tmp |= AUD_CONFIG_N_VALUE_INDEX;
else
tmp |= audio_config_hdmi_pixel_clock(adjusted_mode);
@@ -512,7 +514,8 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder)
/* ELD Conn_Type */
connector->eld[5] &= ~(3 << 2);
if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT))
if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
intel_pipe_has_type(crtc, INTEL_OUTPUT_DP_MST))
connector->eld[5] |= (1 << 2);
connector->eld[6] = drm_av_sync_delay(connector, adjusted_mode) / 2;