[PATCH v11 1/3] dt-bindings: i2c: npcm7xx: add NPCM I2C controller
From: Tali Perry <tali.perry1@gmail.com>
Date: 2020-05-20 09:52:42
Also in:
linux-devicetree, linux-i2c, lkml, openbmc
Subsystem:
arm/nuvoton npcm architecture, i2c subsystem host drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Andrew Jeffery, Avi Fishman, Tomer Maimon, Tali Perry, Andi Shyti, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Added device tree binding documentation for Nuvoton BMC NPCM I2C controller. Signed-off-by: Tali Perry <tali.perry1@gmail.com> --- .../bindings/i2c/nuvoton,npcm7xx-i2c.yaml | 62 +++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml
diff --git a/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml b/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml
new file mode 100644
index 000000000000..fb4293f11461
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml@@ -0,0 +1,62 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/nuvoton,npcm7xx-i2c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: nuvoton NPCM7XX I2C Controller Device Tree Bindings + +description: | + The NPCM750x includes sixteen I2C bus controllers. All Controllers support + both master and slave mode. Each controller can switch between master and slave + at run time (i.e. IPMB mode). Each controller has two 16 byte HW FIFO for TX and + RX. + +maintainers: + - Tali Perry <tali.perry1@gmail.com> + +properties: + compatible: + enum: + - nuvoton,npcm7xx-i2c + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + description: Reference clock for the I2C bus + + bus-frequency: + description: Desired I2C bus clock frequency in Hz. If not specified, + the default 100 kHz frequency will be used. + possible values are 100000, 400000 and 1000000. + default: 100000 + enum: [100000, 400000, 1000000] + +required: + - compatible + - reg + - interrupts + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +unevaluatedProperties: false + +examples: + - | + i2c0: i2c@80000 { + compatible = "nuvoton,npcm750-i2c"; + reg = <0x80000 0x1000>; + clocks = <&clk NPCM7XX_CLK_APB2>; + bus-frequency = <100000>; + interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>; + pinctrl-names = "default"; + pinctrl-0 = <&smb0_pins>; + }; + +...
--
2.22.0
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