mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
4058f6dc3b
This patch adds the binding documentation for Spreadtrum I2C controller device. Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
32 lines
1.0 KiB
Plaintext
32 lines
1.0 KiB
Plaintext
I2C for Spreadtrum platforms
|
|
|
|
Required properties:
|
|
- compatible: Should be "sprd,sc9860-i2c".
|
|
- reg: Specify the physical base address of the controller and length
|
|
of memory mapped region.
|
|
- interrupts: Should contain I2C interrupt.
|
|
- clock-names: Should contain following entries:
|
|
"i2c" for I2C clock,
|
|
"source" for I2C source (parent) clock,
|
|
"enable" for I2C module enable clock.
|
|
- clocks: Should contain a clock specifier for each entry in clock-names.
|
|
- clock-frequency: Constains desired I2C bus clock frequency in Hz.
|
|
- #address-cells: Should be 1 to describe address cells for I2C device address.
|
|
- #size-cells: Should be 0 means no size cell for I2C device address.
|
|
|
|
Optional properties:
|
|
- Child nodes conforming to I2C bus binding
|
|
|
|
Examples:
|
|
i2c0: i2c@70500000 {
|
|
compatible = "sprd,sc9860-i2c";
|
|
reg = <0 0x70500000 0 0x1000>;
|
|
interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
|
|
clock-names = "i2c", "source", "enable";
|
|
clocks = <&clk_i2c3>, <&ext_26m>, <&clk_ap_apb_gates 11>;
|
|
clock-frequency = <400000>;
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
};
|
|
|