Re: [PATCH 1/6] dt-bindings: display: Add panel-mipi-dsi-bpf generic panel binding

["Rob Herring (Arm)" <robh@kernel.org>]

On Mon, 28 Sep 2026 18:22:01 +0200, Maxime Ripard wrote:
> Most MIPI-DSI panel drivers follow an identical pattern: acquire
> regulators and GPIOs, perform a reset pulse with specific timing,
> send a vendor-supplied sequence of DSI commands, then enable the
> display. The only truly panel-specific part is the init sequence
> and power-on/off timing.
> 
> The panel-mipi-dsi-bpf driver replaces per-panel kernel modules
> with a single generic driver whose panel-specific behavior is
> provided by BPF programs loaded from userspace at runtime,
> following the HID-BPF model. This enables new panel support
> without kernel patches.
> 
> Panel DT nodes use a two-entry compatible with the panel-specific
> string first and "panel-mipi-dsi-bpf" as fallback. The generic
> driver matches on the fallback, while the first compatible is used
> to identify which BPF program to load.
> 
> Six normalized optional regulator supplies cover ~95% of existing
> MIPI-DSI panels: vcc (IC core), iovcc (I/O interface), avdd/avee
> (positive/negative analog), and elvdd/elvss (OLED EL driver).
> 
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
> ---
>  .../bindings/display/panel/panel-mipi-dsi-bpf.yaml | 184 +++++++++++++++++++++
>  1 file changed, 184 insertions(+)
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/display/panel/panel-mipi-dsi-bpf.example.dtb: panel@0 (elida,kd35t133): 'dsi-lanes', 'height-mm', 'mode-lpm', 'mode-video', 'mode-video-burst', 'panel-timing', 'vcc-supply', 'width-mm' do not match any of the regexes: '^pinctrl-[0-9]+$'
	from schema $id: http://devicetree.org/schemas/display/panel/elida,kd35t133.yaml
Documentation/devicetree/bindings/display/panel/panel-mipi-dsi-bpf.example.dtb: panel@0 (elida,kd35t133): compatible: ['elida,kd35t133', 'panel-mipi-dsi-bpf'] is too long
	from schema $id: http://devicetree.org/schemas/display/panel/elida,kd35t133.yaml
Documentation/devicetree/bindings/display/panel/panel-mipi-dsi-bpf.example.dtb: panel@0 (elida,kd35t133): 'vdd-supply' is a required property
	from schema $id: http://devicetree.org/schemas/display/panel/elida,kd35t133.yaml
Documentation/devicetree/bindings/display/panel/panel-mipi-dsi-bpf.example.dtb: panel@0 (boe,bf060y8m-aj0): 'dsi-lanes', 'iovcc-supply', 'mode-video', 'panel-timing' do not match any of the regexes: '^pinctrl-[0-9]+$'
	from schema $id: http://devicetree.org/schemas/display/panel/boe,bf060y8m-aj0.yaml
Documentation/devicetree/bindings/display/panel/panel-mipi-dsi-bpf.example.dtb: panel@0 (boe,bf060y8m-aj0): compatible: ['boe,bf060y8m-aj0', 'panel-mipi-dsi-bpf'] is too long
	from schema $id: http://devicetree.org/schemas/display/panel/boe,bf060y8m-aj0.yaml
Documentation/devicetree/bindings/display/panel/panel-mipi-dsi-bpf.example.dtb: panel@0 (boe,bf060y8m-aj0): 'vci-supply' is a required property
	from schema $id: http://devicetree.org/schemas/display/panel/boe,bf060y8m-aj0.yaml
Documentation/devicetree/bindings/display/panel/panel-mipi-dsi-bpf.example.dtb: panel@0 (boe,bf060y8m-aj0): 'vddio-supply' is a required property
	from schema $id: http://devicetree.org/schemas/display/panel/boe,bf060y8m-aj0.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260928-drm-mipi-dsi-panel-ebpf-v1-1-5244926aace4@kernel.org

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.