[PATCH v2 0/2] Expose HDR status in debugfs

[Pranay Samala <pranay.samala@intel.com>]

i915_display_info currently doesn't show whether HDR is active on a
connector. This series adds per-connector HDR details in three parts:
sink capability (from the EDID), whether userspace has set
HDR_OUTPUT_METADATA, and whether the driver has actually enabled HDR
output.

Patch 1 adds a small hdmi_eotf_get_name() helper to video/hdmi so the
EOTF can be printed by name. Patch 2 adds the debugfs output.

v2:
- Move the EOTF name helper to the common hdmi code (Jani)
- Use drm_printer for indentation instead of manual tabs (Jani)
- Treat any non-SDR EOTF as HDR capable
- Print the EDID luminance only when present, in nits
- Add units to the HDR output luminance values

Pranay Samala (2):
  video/hdmi: Add hdmi_eotf_get_name()
  drm/i915/debugfs: Add HDR status to i915_display_info

 .../drm/i915/display/intel_display_debugfs.c  | 90 +++++++++++++++++++
 drivers/video/hdmi.c                          | 23 +++++
 include/linux/hdmi.h                          |  2 +
 3 files changed, 115 insertions(+)

-- 
2.53.0