On Wed, Jun 02, 2021 at 04:51:37PM +0300, Sakari Ailus wrote: > Hi Martin, > > On Fri, May 28, 2021 at 10:13:33AM +0200, Martin Kepplinger wrote: > > Document the bindings used for the SK Hynix Hi-846 CMOS camera driver. > > > > Signed-off-by: Martin Kepplinger <martin.kepplinger@xxxxxxx> > > Could you read Documentation/driver-api/media/camera-sensor.rst, please? > > I believe you'll need assigned-clock-rates device property as well as I dn't think assigned-clock-rates should be part of the bindings, it's a mechanism that can be used in any DT device node. > link-frequencies endpoint property. > > > --- > > .../bindings/media/i2c/hynix,hi846.yaml | 99 +++++++++++++++++++ > > 1 file changed, 99 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/media/i2c/hynix,hi846.yaml > > > > diff --git a/Documentation/devicetree/bindings/media/i2c/hynix,hi846.yaml b/Documentation/devicetree/bindings/media/i2c/hynix,hi846.yaml > > new file mode 100644 > > index 000000000000..2991108e23e5 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/media/i2c/hynix,hi846.yaml > > @@ -0,0 +1,99 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/media/i2c/hynix,hi846.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: SK Hynix Hi-846 1/4" 8M Pixel MIPI CSI-2 sensor > > + > > +maintainers: > > + - Martin Kepplinger <martin.kepplinger@xxxxxxx> > > + > > +description: |- > > + The Hi-846 is a raw image sensor with an MIPI CSI-2 image data > > + interface and CCI (I2C compatible) control bus. The output format > > + is 10bit Bayer. > > Virtually all Bayer sensors can do 8 bpp, too. I'd drop the sentence Not this one according to its datasheet (we can't rule out that this would be possible an undocumented of course). > mentoning 10 bits. > > > + > > +properties: > > + compatible: > > + const: hynix,hi846 > > + > > + reg: > > + description: I2C device address. > > + maxItems: 1 > > + > > + clocks: > > + description: Reference to the mclk clock. > > + maxItems: 1 > > + > > + clock-names: > > + const: mclk > > + > > + rst-gpios: > > + description: Reference to the GPIO connected to the reset pin. Active low. > > + maxItems: 1 > > + > > + vdd-supply: > > + description: Definition of the regulator used as 1.8V digital power supply. > > + > > + port: > > + $ref: /schemas/graph.yaml#/properties/port > > + additionalProperties: false > > + > > + properties: > > + endpoint: > > + $ref: /schemas/media/video-interfaces.yaml# > > + unevaluatedProperties: false > > + > > + properties: > > + data-lanes: > > + oneOf: > > + - items: > > + - const: 1 > > + - const: 2 > > + - const: 3 > > + - const: 4 > > + - items: > > + - const: 1 > > + - const: 2 > > + > > + required: > > + - data-lanes > > + > > +required: > > + - compatible > > + - reg > > + - clocks > > + - clock-names > > + - rst-gpios > > + - vdd-supply > > + - port > > + > > +additionalProperties: false > > + > > +examples: > > + - | > > + #include <dt-bindings/gpio/gpio.h> > > + > > + i2c { > > + #address-cells = <1>; > > + #size-cells = <0>; > > + > > + hi846: camera@20 { > > + compatible = "hynix,hi846"; > > + reg = <0x20>; > > + clocks = <&clk>; > > + clock-names = "mclk"; > > + vdd-supply = <®_camera_pwr_en>; /* 1.8v */ > > + rst-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>; > > + > > + port { > > + camera_out: endpoint { > > + remote-endpoint = <&csi1_ep1>; > > + data-lanes = <1 2>; > > + }; > > + }; > > + }; > > + }; > > + > > +... -- Regards, Laurent Pinchart
