drm/i915: debugfs: HDCP2.2 capability read

Adding the HDCP2.2 capability of HDCP src and sink info into debugfs
entry "i915_hdcp_sink_capability"

This helps the userspace tests to skip the HDCP2.2 test on non HDCP2.2
sinks.

v2:
  Rebased.

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190507162745.25600-3-ramalingam.c@intel.com

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index cb9b56f..072464a 100644 (file)
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -4757,6 +4757,7 @@ static int i915_hdcp_sink_capability_show(struct seq_file *m, void *data)
 {
        struct drm_connector *connector = m->private;
        struct intel_connector *intel_connector = to_intel_connector(connector);
+       bool hdcp_cap, hdcp2_cap;
 
        if (connector->status != connector_status_connected)
                return -ENODEV;
@@ -4767,8 +4768,16 @@ static int i915_hdcp_sink_capability_show(struct seq_file *m, void *data)
 
        seq_printf(m, "%s:%d HDCP version: ", connector->name,
                   connector->base.id);
-       seq_printf(m, "%s ", !intel_hdcp_capable(intel_connector) ?
-                  "None" : "HDCP1.4");
+       hdcp_cap = intel_hdcp_capable(intel_connector);
+       hdcp2_cap = intel_hdcp2_capable(intel_connector);
+
+       if (hdcp_cap)
+               seq_puts(m, "HDCP1.4 ");
+       if (hdcp2_cap)
+               seq_puts(m, "HDCP2.2 ");
+
+       if (!hdcp_cap && !hdcp2_cap)
+               seq_puts(m, "None");
        seq_puts(m, "\n");
 
        return 0;

diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c
index ca5982e..b8c8d6d 100644 (file)
--- a/drivers/gpu/drm/i915/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/intel_hdcp.c
@@ -79,7 +79,7 @@ bool intel_hdcp_capable(struct intel_connector *connector)
 }
 
 /* Is HDCP2.2 capable on Platform and Sink */
-static bool intel_hdcp2_capable(struct intel_connector *connector)
+bool intel_hdcp2_capable(struct intel_connector *connector)
 {
        struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
        struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector);

diff --git a/drivers/gpu/drm/i915/intel_hdcp.h b/drivers/gpu/drm/i915/intel_hdcp.h
index a75f25f..be8da85 100644 (file)
--- a/drivers/gpu/drm/i915/intel_hdcp.h
+++ b/drivers/gpu/drm/i915/intel_hdcp.h
@@ -25,6 +25,7 @@ int intel_hdcp_enable(struct intel_connector *connector);
 int intel_hdcp_disable(struct intel_connector *connector);
 bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port);
 bool intel_hdcp_capable(struct intel_connector *connector);
+bool intel_hdcp2_capable(struct intel_connector *connector);
 void intel_hdcp_component_init(struct drm_i915_private *dev_priv);
 void intel_hdcp_component_fini(struct drm_i915_private *dev_priv);
 void intel_hdcp_cleanup(struct intel_connector *connector);