From 3d52ccf52f2c51f613e42e65be0f06e4e6788093 Mon Sep 17 00:00:00 2001 From: Libin Yang Date: Wed, 2 Dec 2015 14:09:44 +0800 Subject: drm/i915: start adding dp mst audio 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 Signed-off-by: Libin Yang Signed-off-by: Dave Airlie Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1449036584-105393-2-git-send-email-libin.yang@linux.intel.com --- drivers/gpu/drm/i915/i915_debugfs.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers/gpu/drm/i915/i915_debugfs.c') diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index a8721fccd8a0..8698bd5de2c3 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -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"); -- cgit v1.2.3-55-g7522