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| author |   Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> | 2020-02-24 14:55:53 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2020-04-09 10:43:17 -0400 |
| commit | 5f8693796c06ded7d88bf1d9009cdc406e31f3b1 (patch) | |
| tree | 0a762cd65e4d506a8cfbe164be010f0f505fcada /drivers/gpu/drm/amd/display/dc/dc_link.h | |
| parent | drm/amd/display: query hdcp capability during link detect (diff) | |
| download | linux-dev-5f8693796c06ded7d88bf1d9009cdc406e31f3b1.tar.xz linux-dev-5f8693796c06ded7d88bf1d9009cdc406e31f3b1.zip | |
drm/amd/display: add HDCP caps debugfs
Add debugfs to get HDCP capability. This is also useful for
kms_content_protection igt test.
Use:
cat /sys/kernel/debug/dri/0/DP-1/hdcp_sink_capability
cat /sys/kernel/debug/dri/0/HDMI-A-1/hdcp_sink_capability
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_link.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index 0077f9dcd07c..e131dc99f283 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -293,6 +293,10 @@ bool dc_link_detect_sink(struct dc_link *link, enum dc_connection_type *type); * DPCD access interfaces */ +#ifdef CONFIG_DRM_AMD_DC_HDCP +bool dc_link_is_hdcp14(struct dc_link *link); +bool dc_link_is_hdcp22(struct dc_link *link); +#endif void dc_link_set_drive_settings(struct dc *dc, struct link_training_settings *lt_settings, const struct dc_link *link); |