drm/connector: Add drmm_connector_hdmi_init() with new signature

Browse source

In preparation for providing HDMI 2.x source capabilities, move the
vendor, product, supported_formats and max_bpc parameters out of the
init function into struct drm_connector_hdmi_funcs, and add new
supported_hdmi_ver and supported_tmds_char_rate fields there as well.

Appending more HDMI-specific arguments to that function would not scale
well, hence introduce drmm_connector_hdmi_init() with the reduced
signature.

Additionally, add the max_tmds_char_rate field to struct
drm_connector_hdmi and use the supported HDMI version to determinate the
maximum TMDS character rate allowed by the specification.  Some
controllers, however, may support a lower rate than that version would
imply.  A non-zero supported_tmds_char_rate lets drivers override this
default with the actual controller capability.  A value of zero keeps
the limit inferred from supported_hdmi_ver.

Callers are converted in the following patches, while the old and now
renamed *_ini2() helper is removed at the end of the series.

No functional changes expected for existing callers.

Tested-by: Diederik de Haas <diederik@cknow-tech.com>  # NanoPC-T6 LTS, Rock 5B
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Igor Paunovic <royalnet026@gmail.com> # RK3588 Orange Pi 5 Plus, dual HDMI
Tested-by: Robin Räber <robin.raebi@gmail.com>
Link: https://patch.msgid.link/20260901-dw-hdmi-qp-scramb-v11-4-bc12954a0688@collabora.com
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>

...

This commit is contained in:

Cristian Ciocaltea 2026-09-01 21:50:28 +03:00

parent 245e321b61

commit 400c9ede1e

2 changed files with 198 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

137

drivers/gpu/drm/drm_connector.c

View file

62

include/drm/drm_connector.h

View file