From 118a209df6137de7d28dc840778cc2172f8635e3 Mon Sep 17 00:00:00 2001 From: Paul Cercueil Date: Sun, 26 Apr 2020 20:58:54 +0200 Subject: [PATCH] dt-bindings: i2c: Convert i2c-jz4780.txt to YAML Convert the i2c-jz4780.txt file to ingenic,i2c.yaml. Two things were changed in the process: - the clock-frequency property can now only be set to the two values that can be set by the hardware; - the dmas and dma-names properties are now required. Signed-off-by: Paul Cercueil [robh: add ref to i2c-controller.yaml] Signed-off-by: Rob Herring --- .../devicetree/bindings/i2c/i2c-jz4780.txt | 33 ------- .../devicetree/bindings/i2c/ingenic,i2c.yaml | 88 +++++++++++++++++++ 2 files changed, 88 insertions(+), 33 deletions(-) delete mode 100644 Documentation/devicetree/bindings/i2c/i2c-jz4780.txt create mode 100644 Documentation/devicetree/bindings/i2c/ingenic,i2c.yaml diff --git a/Documentation/devicetree/bindings/i2c/i2c-jz4780.txt b/Documentation/devicetree/bindings/i2c/i2c-jz4780.txt deleted file mode 100644 index d229eff5ca1b..000000000000 --- a/Documentation/devicetree/bindings/i2c/i2c-jz4780.txt +++ /dev/null @@ -1,33 +0,0 @@ -* Ingenic JZ4780 I2C Bus controller - -Required properties: -- compatible: should be one of the following: - - "ingenic,jz4780-i2c" for the JZ4780 - - "ingenic,x1000-i2c" for the X1000 -- reg: Should contain the address & size of the I2C controller registers. -- interrupts: Should specify the interrupt provided by parent. -- clocks: Should contain a single clock specifier for the JZ4780 I2C clock. -- clock-frequency: desired I2C bus clock frequency in Hz. - -Recommended properties: -- pinctrl-names: should be "default"; -- pinctrl-0: phandle to pinctrl function - -Example - -/ { - i2c4: i2c4@10054000 { - compatible = "ingenic,jz4780-i2c"; - reg = <0x10054000 0x1000>; - - interrupt-parent = <&intc>; - interrupts = <56>; - - clocks = <&cgu JZ4780_CLK_SMB4>; - clock-frequency = <100000>; - pinctrl-names = "default"; - pinctrl-0 = <&pins_i2c4_data>; - - }; -}; - diff --git a/Documentation/devicetree/bindings/i2c/ingenic,i2c.yaml b/Documentation/devicetree/bindings/i2c/ingenic,i2c.yaml new file mode 100644 index 000000000000..682ed1bbf5c6 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/ingenic,i2c.yaml @@ -0,0 +1,88 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/ingenic,i2c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Ingenic SoCs I2C controller devicetree bindings + +maintainers: + - Paul Cercueil + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +properties: + $nodename: + pattern: "^i2c@[0-9a-f]+$" + + compatible: + enum: + - ingenic,jz4780-i2c + - ingenic,x1000-i2c + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-frequency: + enum: [ 100000, 400000 ] + + dmas: + items: + - description: DMA controller phandle and request line for RX + - description: DMA controller phandle and request line for TX + + dma-names: + items: + - const: rx + - const: tx + +required: + - compatible + - reg + - interrupts + - clocks + - clock-frequency + - dmas + - dma-names + +unevaluatedProperties: false + +examples: + - | + #include + #include + #include + i2c@10054000 { + compatible = "ingenic,jz4780-i2c"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x10054000 0x1000>; + + interrupt-parent = <&intc>; + interrupts = <56>; + + clocks = <&cgu JZ4780_CLK_SMB4>; + pinctrl-names = "default"; + pinctrl-0 = <&pins_i2c4_data>; + + dmas = <&dma JZ4780_DMA_SMB4_RX 0xffffffff>, + <&dma JZ4780_DMA_SMB4_TX 0xffffffff>; + dma-names = "rx", "tx"; + + clock-frequency = <400000>; + + rtc@51 { + compatible = "nxp,pcf8563"; + reg = <0x51>; + + interrupt-parent = <&gpf>; + interrupts = <30 IRQ_TYPE_LEVEL_LOW>; + }; + }; -- 2.20.1