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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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16
drivers/gpu/drm/i915/i915_debugfs.c
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@@ -2850,6 +2850,20 @@ static void intel_dp_info(struct seq_file *m,
intel_panel_info(m, &intel_connector->panel);
}
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)
{
@@ -2893,6 +2907,8 @@ static void intel_connector_info(struct seq_file *m,
intel_hdmi_info(m, intel_connector);
else if (intel_encoder->type == INTEL_OUTPUT_LVDS)
intel_lvds_info(m, intel_connector);
else if (intel_encoder->type == INTEL_OUTPUT_DP_MST)
intel_dp_mst_info(m, intel_connector);
}
seq_printf(m, "\tmodes:\n");