kernel/linux.git/drivers/gpu/drm/drm_probe_helper.c, branch linux-7.0.y

drm/probe-helper: put the bridge returned by drm_bridge_chain_get_first_bridge()

2025-07-22T11:01:28+00:00

The bridge returned by drm_bridge_chain_get_first_bridge() is refcounted. Put it when done. Reviewed-by: Maxime Ripard Link: https://lore.kernel.org/r/20250708-drm-bridge-alloc-getput-drm_bridge_chain_get_first_bridge-v9-5-db1ba3df7f58@bootlin.com Signed-off-by: Luca Ceresoli

drm/probe-helper: Do not fail from drmm_kms_helper_poll_init()

2025-03-24T08:31:03+00:00

Failing to set up connector polling is not significant enough to fail device probing. Print a warning and return nothing from the init helper. This only affects the managed init function. The unmanaged init already never fails with an error. Signed-off-by: Thomas Zimmermann Reviewed-by: Patrik Jakobsson Link: https://patchwork.freedesktop.org/patch/msgid/20250303145604.62962-4-tzimmermann@suse.de

drm/probe-helper: Call connector detect functions in single helper

2025-01-14T10:20:49+00:00

Move the logic to call the connector's detect helper into a single internal function. Reduces code dupliction. Signed-off-by: Thomas Zimmermann Acked-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20240715093936.793552-2-tzimmermann@suse.de

drm/connector: make mode_valid take a const struct drm_display_mode

2025-01-07T10:45:19+00:00

The mode_valid() callbacks of drm_encoder, drm_crtc and drm_bridge take a const struct drm_display_mode argument. Change the mode_valid callback of drm_connector to also take a const argument. Acked-by: Jani Nikula Reviewed-by: Liviu Dudau Reviewed-by: Raphael Gallais-Pou Reviewed-by: Laurent Pinchart Reviewed-by: Lyude Paul Reviewed-by: Maxime Ripard Reviewed-by: Thomas Zimmermann Reviewed-by: Harry Wentland Link: https://patchwork.freedesktop.org/patch/msgid/20241214-drm-connector-mode-valid-const-v2-5-4f9498a4c822@linaro.org Signed-off-by: Dmitry Baryshkov

drm/client: Move client event handlers to drm_client_event.c

2024-10-18T07:23:03+00:00

A number of DRM-client functions serve as entry points from device operations to client code. Moving them info a separate file will later allow for a more fine-grained kernel configuration. For most of the users it is sufficient to include instead of the full driver-side interface in v2: - rename new files to drm_client_event.{c,h} Signed-off-by: Thomas Zimmermann Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Joonas Lahtinen Cc: Tvrtko Ursulin Cc: Karol Herbst Cc: Lyude Paul Cc: Danilo Krummrich Reviewed-by: Jonathan Cavitt Link: https://patchwork.freedesktop.org/patch/msgid/20241014085740.582287-7-tzimmermann@suse.de

drm: Remove struct drm_mode_config_funcs.output_poll_changed

2024-08-13T14:21:13+00:00

The output_poll_changed hook in struct drm_mode_config_funcs is unused. Remove it. The helper drm_client_dev_hotplug() implements the callback's functionality. Signed-off-by: Thomas Zimmermann Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20240812083000.337744-10-tzimmermann@suse.de

drm: Add the missing symbol '.'

2024-07-30T08:38:22+00:00

Signed-off-by: Shixiong Ou Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20240729065756.123788-1-oushixiong1025@163.com

drm: Add DRM_MODE_TV_MODE_MONOCHROME

2024-06-18T09:13:30+00:00

Add this as a value for enum_drm_connector_tv_mode, represented by the string "Mono", to generate video with no colour encoding or bursts. Define it to have no pedestal (since only NTSC-M calls for a pedestal). Change default mode creation to acommodate the new tv_mode value which comprises both 525-line and 625-line formats. Acked-by: Daniel Vetter Signed-off-by: Nick Hollinghurst Signed-off-by: Dave Stevenson Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20240216184857.245372-2-dave.stevenson@raspberrypi.com

drm/probe-helper: Call drm_mode_validate_ycbcr420() before connector->mode_valid()

2024-05-21T18:39:26+00:00

Make life easier for drivers by filtering out unwanted YCbCr 4:2:0 only modes prior to calling the connector->mode_valid() hook. Currently drivers will still see YCbCr 4:2:0 only modes in said hook, which will likely come as a suprise when the driver has declared no support for such modes (via setting connector->ycbcr_420_allowed to false). Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/10992 Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20240516173324.18149-1-ville.syrjala@linux.intel.com Reviewed-by: Daniel Vetter

drm: prefer DRM_MODE_FMT/ARG over drm_mode_debug_printmodeline()

2024-04-15T13:22:50+00:00

We have DRM_MODE_FMT and DRM_MODE_ARG() macros to allow unified debug printing of modes in any printk-formatted logging. Prefer them over drm_mode_debug_printmodeline(). This allows drm device specific logging of modes, in the right drm debug category, and inline with the rest of the logging instead of split to multiple lines. Suggested-by: Ville Syrjälä Reviewed-by: Ville Syrjälä Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/6df18588dfa17c5d0a1501f5af9ff21f25a1981b.1712568037.git.jani.nikula@intel.com Signed-off-by: Jani Nikula