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| author | Tali Perry <tali.perry1@gmail.com> | 2020-05-27 22:08:18 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2020-06-03 22:39:05 +0200 |
| commit | cd020be04b6ec269df1b44d5cd2cd548cae0d46a (patch) | |
| tree | 02a41ae46c8ea760c78f524a1c1dddbd7da980ed /Documentation/devicetree | |
| parent | i2c: pxa: don't error out if there's no pinctrl (diff) | |
| download | linux-cd020be04b6ec269df1b44d5cd2cd548cae0d46a.tar.xz linux-cd020be04b6ec269df1b44d5cd2cd548cae0d46a.zip | |
dt-bindings: i2c: npcm7xx: add NPCM I2C controller
Added device tree binding documentation for Nuvoton BMC
NPCM I2C controller.
Signed-off-by: Tali Perry <tali.perry1@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml | 62 |
1 files changed, 62 insertions, 0 deletions
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..e3ef2d36f372 --- /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: + const: nuvoton,npcm7xx-i2c + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + description: Reference clock for the I2C bus + + clock-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 + - clocks + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/clock/nuvoton,npcm7xx-clock.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + i2c0: i2c@80000 { + reg = <0x80000 0x1000>; + clocks = <&clk NPCM7XX_CLK_APB2>; + clock-frequency = <100000>; + interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>; + compatible = "nuvoton,npcm750-i2c"; + }; + +... |