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media: dt-bindings: Add ch7322 media i2c device

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The ch7322 is a Chrontel CEC controller.

Signed-off-by: Jeff Chase <jnchase@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Jeff Chase 2020-06-23 01:59:48 +02:00 committed by Mauro Carvalho Chehab
parent c92d30e4b7
commit 7f52faabd2
2 changed files with 74 additions and 0 deletions
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67
Documentation/devicetree/bindings/media/i2c/chrontel,ch7322.yaml Normal file
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# 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>;
};
};

7
MAINTAINERS
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@ -4101,6 +4101,13 @@ 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>