On Mon, 28 Nov 2016, libin.yang@xxxxxxxxx wrote:
> From: Libin Yang <libin.yang@xxxxxxxxx>
>
> Add the DP MST info dump in debugfs.
>
> Signed-off-by: Libin Yang <libin.yang@xxxxxxxxx>
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
> Reviewed-by: Lyude <cpaul@xxxxxxxxxx>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
I don't think Rodrigo's sob is proper here, even if he pushed the
original version of the patch that got later reverted.
Anyway,
Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_debugfs.c | 19 ++++++++++++++++++-
> 1 file changed, 18 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index e7f731f..f5f88b2 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -2877,6 +2877,20 @@ 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)
> {
> @@ -2919,7 +2933,10 @@ 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)
--
Jani Nikula, Intel Open Source Technology Center
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