Hi Laurent, On Thu, Nov 25, 2021 at 3:53 AM Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote: > > Hi Jagan, > > Thank you for the patch. > > On Wed, Nov 24, 2021 at 10:55:52PM +0530, Jagan Teki wrote: > > TI DLPC3433 is a MIPI DSI based display controller bridge > > for processing high resolution DMD based projectors. > > > > It has a flexible configuration of MIPI DSI signal input > > produces RGB565, RGB666, RGB888 output format with maximum > > of 720p resolution in 60 and 120 Hz refresh rates. > > > > Add dt-bingings for it. > > > > Signed-off-by: Christopher Vollo <chris@xxxxxxxxxxxxxxxxx> > > Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx> > > --- > > .../bindings/display/bridge/ti,dlpc3433.yaml | 112 ++++++++++++++++++ > > MAINTAINERS | 6 + > > 2 files changed, 118 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/display/bridge/ti,dlpc3433.yaml > > > > diff --git a/Documentation/devicetree/bindings/display/bridge/ti,dlpc3433.yaml b/Documentation/devicetree/bindings/display/bridge/ti,dlpc3433.yaml > > new file mode 100644 > > index 000000000000..3ade3a575c3e > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/display/bridge/ti,dlpc3433.yaml > > @@ -0,0 +1,112 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/display/bridge/ti,dlpc3433.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: TI DLPC3433 Display Controller > > + > > +maintainers: > > + - Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx> > > + - Christopher Vollo <chris@xxxxxxxxxxxxxxxxx> > > + > > +description: | > > + The DLPC3433 or DLPC3438 controllers provide a convenient, > > + multi-functional interface between system electronics and > > + the DMD, enabling small form factor, low power, and high > > + resolution HD displays. > > You may want to mention in the title and/or description that this is a > DSI to DMD bridge. Actually, the device also supports a DPI input, which > should be modelled in the DT bindings. How can we model DPI since it is a DSI bridge bindings? Does it mean we can add another node example to have DPI instead of DSI? > > > + > > +properties: > > + compatible: > > + enum: > > + - ti,dlpc3433 > > Or just > > compatible: > const: ti,dlpc3433 > > > + > > + reg: > > + maxItems: 1 > > + description: virtual channel number of a DSI peripheral > > I don't think this is right, the reg is the I2C address. You can drop > the description. > > > + > > + enable-gpios: > > + description: PROJ_EN pin, chip powers up PROJ_EN is high. > > It's called PROJ_ON, not PROJ_EN, in the datasheet. > > > + > > + vcc_intf-supply: > > + description: A 1.8V/3.3V supply that power the Host I/O. > > + > > + vcc_flsh-supply: > > + description: A 1.8V/3.3V supply that power the Flash I/O. > > + > > + ports: > > + $ref: /schemas/graph.yaml#/properties/ports > > + > > + properties: > > + port@0: > > + $ref: /schemas/graph.yaml#/$defs/port-base > > + unevaluatedProperties: false > > + description: Video port for MIPI DSI input. > > + > > + properties: > > + endpoint: > > + $ref: /schemas/media/video-interfaces.yaml# > > + unevaluatedProperties: false > > + > > + properties: > > + data-lanes: > > + description: array of physical DSI data lane indexes. > > + minItems: 1 > > + items: > > + - const: 1 > > + - const: 2 > > + - const: 3 > > + - const: 4 > > + > > + port@1: > > + $ref: /schemas/graph.yaml#/properties/port > > + description: Video port for DPI output (DMD Projector). > > The output isn't DPI, but DMD. > > > + > > + required: > > + - port@0 > > + - port@1 > > + > > +required: > > + - compatible > > + - reg > > + - enable-gpios > > Can the chip be used with the PROJ_ON input hardwired to a high logic > state, or does it need to be controlled ? PROJ_ON require an explicit enablement via driver in order to have device out-of-reset. Thanks, Jagan.
