diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 71 |
1 files changed, 67 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c index 0461fecd68db..b3b7efd973ca 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c @@ -838,6 +838,44 @@ static int vrr_range_show(struct seq_file *m, void *data) return 0; } +#ifdef CONFIG_DRM_AMD_DC_HDCP +/* + * Returns the HDCP capability of the Display (1.4 for now). + * + * NOTE* Not all HDMI displays report their HDCP caps even when they are capable. + * Since its rare for a display to not be HDCP 1.4 capable, we set HDMI as always capable. + * + * Example usage: cat /sys/kernel/debug/dri/0/DP-1/hdcp_sink_capability + * or cat /sys/kernel/debug/dri/0/HDMI-A-1/hdcp_sink_capability + */ +static int hdcp_sink_capability_show(struct seq_file *m, void *data) +{ + struct drm_connector *connector = m->private; + struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); + bool hdcp_cap, hdcp2_cap; + + if (connector->status != connector_status_connected) + return -ENODEV; + + seq_printf(m, "%s:%d HDCP version: ", connector->name, connector->base.id); + + hdcp_cap = dc_link_is_hdcp14(aconnector->dc_link); + hdcp2_cap = dc_link_is_hdcp22(aconnector->dc_link); + + + if (hdcp_cap) + seq_printf(m, "%s ", "HDCP1.4"); + if (hdcp2_cap) + seq_printf(m, "%s ", "HDCP2.2"); + + if (!hdcp_cap && !hdcp2_cap) + seq_printf(m, "%s ", "None"); + + seq_puts(m, "\n"); + + return 0; +} +#endif /* function description * * generic SDP message access for testing @@ -964,6 +1002,9 @@ DEFINE_SHOW_ATTRIBUTE(dmub_fw_state); DEFINE_SHOW_ATTRIBUTE(dmub_tracebuffer); DEFINE_SHOW_ATTRIBUTE(output_bpc); DEFINE_SHOW_ATTRIBUTE(vrr_range); +#ifdef CONFIG_DRM_AMD_DC_HDCP +DEFINE_SHOW_ATTRIBUTE(hdcp_sink_capability); +#endif static const struct file_operations dp_link_settings_debugfs_fops = { .owner = THIS_MODULE, @@ -1019,12 +1060,23 @@ static const struct { {"test_pattern", &dp_phy_test_pattern_fops}, {"output_bpc", &output_bpc_fops}, {"vrr_range", &vrr_range_fops}, +#ifdef CONFIG_DRM_AMD_DC_HDCP + {"hdcp_sink_capability", &hdcp_sink_capability_fops}, +#endif {"sdp_message", &sdp_message_fops}, {"aux_dpcd_address", &dp_dpcd_address_debugfs_fops}, {"aux_dpcd_size", &dp_dpcd_size_debugfs_fops}, {"aux_dpcd_data", &dp_dpcd_data_debugfs_fops} }; +#ifdef CONFIG_DRM_AMD_DC_HDCP +static const struct { + char *name; + const struct file_operations *fops; +} hdmi_debugfs_entries[] = { + {"hdcp_sink_capability", &hdcp_sink_capability_fops} +}; +#endif /* * Force YUV420 output if available from the given mode */ @@ -1093,6 +1145,15 @@ void connector_debugfs_init(struct amdgpu_dm_connector *connector) connector->debugfs_dpcd_address = 0; connector->debugfs_dpcd_size = 0; +#ifdef CONFIG_DRM_AMD_DC_HDCP + if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA) { + for (i = 0; i < ARRAY_SIZE(hdmi_debugfs_entries); i++) { + debugfs_create_file(hdmi_debugfs_entries[i].name, + 0644, dir, connector, + hdmi_debugfs_entries[i].fops); + } + } +#endif } /* @@ -1167,8 +1228,9 @@ static int current_backlight_read(struct seq_file *m, void *data) struct drm_info_node *node = (struct drm_info_node *)m->private; struct drm_device *dev = node->minor->dev; struct amdgpu_device *adev = dev->dev_private; - struct dc *dc = adev->dm.dc; - unsigned int backlight = dc_get_current_backlight_pwm(dc); + struct amdgpu_display_manager *dm = &adev->dm; + + unsigned int backlight = dc_link_get_backlight_level(dm->backlight_link); seq_printf(m, "0x%x\n", backlight); return 0; @@ -1184,8 +1246,9 @@ static int target_backlight_read(struct seq_file *m, void *data) struct drm_info_node *node = (struct drm_info_node *)m->private; struct drm_device *dev = node->minor->dev; struct amdgpu_device *adev = dev->dev_private; - struct dc *dc = adev->dm.dc; - unsigned int backlight = dc_get_target_backlight_pwm(dc); + struct amdgpu_display_manager *dm = &adev->dm; + + unsigned int backlight = dc_link_get_target_backlight_pwm(dm->backlight_link); seq_printf(m, "0x%x\n", backlight); return 0; |