| Message ID | 20200602190914.218541-2-jnchase@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | CH7322 CEC controller driver | expand |
On Tue, Jun 02, 2020 at 03:09:13PM -0400, Jeff Chase wrote: > The ch7322 is a Chrontel CEC controller. > > Signed-off-by: Jeff Chase <jnchase@google.com> > --- > .../bindings/media/i2c/chrontel,ch7322.yaml | 67 +++++++++++++++++++ > .../devicetree/bindings/vendor-prefixes.yaml | 2 + > MAINTAINERS | 7 ++ > 3 files changed, 76 insertions(+) > create mode 100644 Documentation/devicetree/bindings/media/i2c/chrontel,ch7322.yaml > > diff --git a/Documentation/devicetree/bindings/media/i2c/chrontel,ch7322.yaml b/Documentation/devicetree/bindings/media/i2c/chrontel,ch7322.yaml > new file mode 100644 > index 000000000000..daa2869377c5 > --- /dev/null > +++ b/Documentation/devicetree/bindings/media/i2c/chrontel,ch7322.yaml > @@ -0,0 +1,67 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: "http://devicetree.org/schemas/media/i2c/chrontel,ch7322.yaml#" > +$schema: "http://devicetree.org/meta-schemas/core.yaml#" > + > +title: Chrontel HDMI-CEC Controller > + > +maintainers: > + - Jeff Chase <jnchase@google.com> > + > +description: > + The Chrontel CH7322 is a discrete HDMI-CEC controller. It is > + programmable through I2C and drives a single CEC line. > + > +properties: > + compatible: > + const: chrontel,ch7322 > + > + reg: > + description: I2C device address > + maxItems: 1 > + > + clocks: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + reset-gpios: > + description: > + Reference to the GPIO connected to the RESET pin, if any. This > + pin is active-low. > + maxItems: 1 > + > + standby-gpios: > + description: > + Reference to the GPIO connected to the OE pin, if any. When low > + the device will respond to power status requests with "standby" > + if in auto mode. > + maxItems: 1 > + > + # see ../cec.txt > + hdmi-phandle: > + description: phandle to the HDMI controller > + > +required: > + - compatible > + - reg > + - interrupts > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + #include <dt-bindings/interrupt-controller/irq.h> > + i2c { > + #address-cells = <1>; > + #size-cells = <0>; > + ch7322@75 { > + compatible = "chrontel,ch7322"; > + reg = <0x75>; > + interrupts = <47 IRQ_TYPE_EDGE_RISING>; > + standby-gpios = <&gpio 16 GPIO_ACTIVE_LOW>; > + reset-gpios = <&gpio 15 GPIO_ACTIVE_LOW>; > + hdmi-phandle = <&hdmi>; > + }; > + }; > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml > index d3891386d671..7794ffccd325 100644 > --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml > +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml > @@ -187,6 +187,8 @@ patternProperties: > description: ChipOne > "^chipspark,.*": > description: ChipSPARK > + "^chrontel,.*": > + description: Chrontel, Inc. This is in Linus' master already, so you can drop it. Otherwise, Reviewed-by: Rob Herring <robh@kernel.org> Rob
diff --git a/Documentation/devicetree/bindings/media/i2c/chrontel,ch7322.yaml b/Documentation/devicetree/bindings/media/i2c/chrontel,ch7322.yaml new file mode 100644 index 000000000000..daa2869377c5 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/chrontel,ch7322.yaml @@ -0,0 +1,67 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/media/i2c/chrontel,ch7322.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Chrontel HDMI-CEC Controller + +maintainers: + - Jeff Chase <jnchase@google.com> + +description: + The Chrontel CH7322 is a discrete HDMI-CEC controller. It is + programmable through I2C and drives a single CEC line. + +properties: + compatible: + const: chrontel,ch7322 + + reg: + description: I2C device address + maxItems: 1 + + clocks: + maxItems: 1 + + interrupts: + maxItems: 1 + + reset-gpios: + description: + Reference to the GPIO connected to the RESET pin, if any. This + pin is active-low. + maxItems: 1 + + standby-gpios: + description: + Reference to the GPIO connected to the OE pin, if any. When low + the device will respond to power status requests with "standby" + if in auto mode. + maxItems: 1 + + # see ../cec.txt + hdmi-phandle: + description: phandle to the HDMI controller + +required: + - compatible + - reg + - interrupts + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + i2c { + #address-cells = <1>; + #size-cells = <0>; + ch7322@75 { + compatible = "chrontel,ch7322"; + reg = <0x75>; + interrupts = <47 IRQ_TYPE_EDGE_RISING>; + standby-gpios = <&gpio 16 GPIO_ACTIVE_LOW>; + reset-gpios = <&gpio 15 GPIO_ACTIVE_LOW>; + hdmi-phandle = <&hdmi>; + }; + }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml index d3891386d671..7794ffccd325 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -187,6 +187,8 @@ patternProperties: description: ChipOne "^chipspark,.*": description: ChipSPARK + "^chrontel,.*": + description: Chrontel, Inc. "^chrp,.*": description: Common Hardware Reference Platform "^chunghwa,.*": diff --git a/MAINTAINERS b/MAINTAINERS index d633a131dcd7..34c6d30e61e5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4047,6 +4047,13 @@ F: drivers/power/supply/cros_usbpd-charger.c N: cros_ec N: cros-ec +CHRONTEL CH7322 CEC DRIVER +M: Jeff Chase <jnchase@google.com> +L: linux-media@vger.kernel.org +S: Maintained +T: git git://linuxtv.org/media_tree.git +F: Documentation/devicetree/bindings/media/i2c/chontel,ch7322.yaml + CIRRUS LOGIC AUDIO CODEC DRIVERS M: James Schulman <james.schulman@cirrus.com> M: David Rhodes <david.rhodes@cirrus.com>
The ch7322 is a Chrontel CEC controller. Signed-off-by: Jeff Chase <jnchase@google.com> --- .../bindings/media/i2c/chrontel,ch7322.yaml | 67 +++++++++++++++++++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + MAINTAINERS | 7 ++ 3 files changed, 76 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/chrontel,ch7322.yaml