Hi Dongchun, On Tue, Oct 13, 2020 at 09:05:02PM +0800, Dongchun Zhu wrote: > Add YAML device tree binding for OV02A10 CMOS image sensor, and the > relevant MAINTAINERS entries. > > Signed-off-by: Dongchun Zhu <dongchun.zhu@xxxxxxxxxxxx> > --- > .../bindings/media/i2c/ovti,ov02a10.yaml | 162 +++++++++++++++++++++ > MAINTAINERS | 7 + > 2 files changed, 169 insertions(+) > create mode 100644 Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml > > diff --git a/Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml b/Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml > new file mode 100644 > index 0000000..fb98964 > --- /dev/null > +++ b/Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml > @@ -0,0 +1,162 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +# Copyright (c) 2020 MediaTek Inc. > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/media/i2c/ovti,ov02a10.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Omnivision OV02A10 CMOS Sensor Device Tree Bindings > + > +maintainers: > + - Dongchun Zhu <dongchun.zhu@xxxxxxxxxxxx> > + > +description: |- > + The Omnivision OV02A10 is a low-cost, high performance, 1/5-inch, 2 megapixel > + image sensor, which is the latest production derived from Omnivision's CMOS > + image sensor technology. Ihis chip supports high frame rate speeds up to 30fps > + @ 1600x1200 (UXGA) resolution transferred over a 1-lane MIPI interface. The > + sensor output is available via CSI-2 serial data output. > + > +properties: > + compatible: > + const: ovti,ov02a10 > + > + reg: > + maxItems: 1 > + > + clocks: > + maxItems: 1 > + > + clock-names: > + description: > + External clock for the sensor. > + items: > + - const: eclk > + > + clock-frequency: > + description: > + Frequency of the eclk clock in Hz. > + > + dovdd-supply: > + description: > + Definition of the regulator used as Digital I/O voltage supply. > + > + avdd-supply: > + description: > + Definition of the regulator used as Analog voltage supply. > + > + dvdd-supply: > + description: > + Definition of the regulator used as Digital core voltage supply. > + > + powerdown-gpios: > + description: > + Must be the device tree identifier of the GPIO connected to the > + PD_PAD pin. This pin is used to place the OV02A10 into standby mode > + or shutdown mode. As the line needs to be high for the powerdown mode > + to be active, it should be marked GPIO_ACTIVE_HIGH. > + maxItems: 1 > + > + reset-gpios: > + description: > + Must be the device tree identifier of the GPIO connected to the > + RST_PD pin. If specified, it will be asserted during driver probe. > + As the line needs to be low for the reset to be active, it should be > + marked GPIO_ACTIVE_LOW. > + maxItems: 1 > + > + rotation: > + description: > + Definition of the sensor's placement. > + allOf: > + - $ref: "/schemas/types.yaml#/definitions/uint32" > + - enum: > + - 0 # Sensor Mounted Upright > + - 180 # Sensor Mounted Upside Down > + default: 0 > + > + ovti,mipi-clock-voltage: > + description: > + An array of 2-tuples items, and each item consists of link frequency and > + MIPI clock voltage unit like <freq-kHz volt-unit>. Clock voltage unit is > + dependent upon link speed, indicating MIPI transmission speed select that > + controls D-PHY timing setting by adjusting MIPI clock voltage to improve > + the clock driver capability. > + $ref: "/schemas/types.yaml#/definitions/uint32-array" > + minItems: 2 > + default: [390000, 4] Why do you have the link frequency here as well? In principle this does belong to the endpoint as link frequencies are specific to that, but I don't mind; there's just a single port anyway. > + > + # See ../video-interfaces.txt for details > + port: > + type: object > + additionalProperties: false > + description: > + Output port node, single endpoint describing the CSI-2 transmitter. > + > + properties: > + endpoint: > + type: object > + additionalProperties: false > + > + properties: > + link-frequencies: true > + remote-endpoint: true > + > + required: > + - link-frequencies > + - remote-endpoint > + > + required: > + - endpoint > + > +required: > + - compatible > + - reg > + - clocks > + - clock-names > + - clock-frequency > + - dovdd-supply > + - avdd-supply > + - dvdd-supply > + - powerdown-gpios > + - reset-gpios > + - port > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + > + i2c { > + #address-cells = <1>; > + #size-cells = <0>; > + > + ov02a10: camera-sensor@3d { > + compatible = "ovti,ov02a10"; > + reg = <0x3d>; > + > + powerdown-gpios = <&pio 107 GPIO_ACTIVE_HIGH>; > + reset-gpios = <&pio 109 GPIO_ACTIVE_LOW>; > + > + clocks = <&ov02a10_clk>; > + clock-names = "eclk"; > + clock-frequency = <24000000>; > + > + rotation = <180>; > + ovti,mipi-clock-voltage = <390000 4>; > + > + dovdd-supply = <&ov02a10_dovdd>; > + avdd-supply = <&ov02a10_avdd>; > + dvdd-supply = <&ov02a10_dvdd>; > + > + port { > + wcam_out: endpoint { > + link-frequencies = /bits/ 64 <390000000>; > + remote-endpoint = <&mipi_in_wcam>; > + }; > + }; > + }; > + }; > + > +... > diff --git a/MAINTAINERS b/MAINTAINERS > index deaafb6..48aa7a7 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -12718,6 +12718,13 @@ M: Harald Welte <laforge@xxxxxxxxxxxx> > S: Maintained > F: drivers/char/pcmcia/cm4040_cs.* > > +OMNIVISION OV02A10 SENSOR DRIVER > +M: Dongchun Zhu <dongchun.zhu@xxxxxxxxxxxx> > +L: linux-media@xxxxxxxxxxxxxxx > +S: Maintained > +T: git git://linuxtv.org/media_tree.git > +F: Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml > + > OMNIVISION OV13858 SENSOR DRIVER > M: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> > L: linux-media@xxxxxxxxxxxxxxx > -- > 2.9.2 -- Sakari Ailus
