[PATCH 2/2] devicetree bindings I2C Add bindings doc for Sunplus SP7021

From: LH.Kuo
Date: Fri Oct 29 2021 - 04:42:49 EST


Add devicetree bindings I2C Add bindings doc for Sunplus SP7021

Signed-off-by: LH.Kuo <lh.kuo@xxxxxxxxxxx>
---
.../devicetree/bindings/i2c/i2c-sunplus.yaml | 82 ++++++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 83 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i2c/i2c-sunplus.yaml

diff --git a/Documentation/devicetree/bindings/i2c/i2c-sunplus.yaml b/Documentation/devicetree/bindings/i2c/i2c-sunplus.yaml
new file mode 100644
index 0000000..7e2f827
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-sunplus.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/i2c-sunplus.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sunplus's I2C controller
+
+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
+maintainers:
+ - lh.kuo <lh.kuo@xxxxxxxxxxx>
+
+properties:
+ compatible:
+ enum:
+ - sunplus,sp7021-i2cm
+ - sunplus,q645-i2cm
+
+ reg:
+ items:
+ - description: Base address and length of the I2C registers
+ - description: Base address and length of the I2C DMA registers
+
+ reg-names:
+ items:
+ - const: i2cm
+ - const: i2cmdma
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ clock-frequency:
+ enum: [ 100000, 400000 ]
+
+ pinctrl-names:
+ description:
+ A pinctrl state named "default" must be defined.
+ const: default
+
+ pinctrl-0:
+ description:
+ A phandle to the default pinctrl state.
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - clocks
+ - resets
+ - pinctrl-names
+ - pinctrl-0
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sp-sp7021.h>
+ #include <dt-bindings/reset/sp-sp7021.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2cm0: i2c@9C004600 {
+ compatible = "sunplus,sp7021-i2cm";
+ reg = <0x9c004600 0x80>, <0x9c004680 0x80>;
+ reg-names = "i2cm", "i2cmdma";
+ interrupt-parent = <&intc>;
+ interrupts = <174 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clkc I2CM0>;
+ resets = <&rstc RST_I2CM0>;
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2cm0_pins>;
+ };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index c89a3b1..7dc9bea 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -17951,6 +17951,7 @@ SUNPLUS I2C CONTROLLER INTERFACE DRIVER
M: LH Kuo <lh.kuo@xxxxxxxxxxx>
L: linux-i2c@xxxxxxxxxxxxxxx
S: Maintained
+F: Documentation/devicetree/bindings/i2c/i2c-sunplus.yaml
F: drivers/i2c/busses/i2c-sunplus.c

SUPERH
--
2.7.4