diff mbox series

[v4,1/2] dt-bindings: Add ch7322 media i2c device

Message ID 20200602190914.218541-2-jnchase@google.com
State New
Headers show
Series [v4,1/2] dt-bindings: Add ch7322 media i2c device | expand

Commit Message

Jeff Chase June 2, 2020, 7:09 p.m. UTC 
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 mbox series

Patch

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>