diff options
Diffstat (limited to 'Bindings/i2c/i2c-imx.txt')
| -rw-r--r-- | Bindings/i2c/i2c-imx.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Bindings/i2c/i2c-imx.txt b/Bindings/i2c/i2c-imx.txt index 52d37fd8d3e5..eab5836ba7f9 100644 --- a/Bindings/i2c/i2c-imx.txt +++ b/Bindings/i2c/i2c-imx.txt @@ -7,12 +7,17 @@ Required properties: - "fsl,vf610-i2c" for I2C compatible with the one integrated on Vybrid vf610 SoC - reg : Should contain I2C/HS-I2C registers location and length - interrupts : Should contain I2C/HS-I2C interrupt +- clocks : Should contain the I2C/HS-I2C clock specifier Optional properties: - clock-frequency : Constains desired I2C/HS-I2C bus clock frequency in Hz. The absence of the propoerty indicates the default frequency 100 kHz. - dmas: A list of two dma specifiers, one for each entry in dma-names. - dma-names: should contain "tx" and "rx". +- scl-gpios: specify the gpio related to SCL pin +- sda-gpios: specify the gpio related to SDA pin +- pinctrl: add extra pinctrl to configure i2c pins to gpio function for i2c + bus recovery, call it "gpio" state Examples: @@ -36,4 +41,9 @@ i2c0: i2c@40066000 { /* i2c0 on vf610 */ dmas = <&edma0 0 50>, <&edma0 0 51>; dma-names = "rx","tx"; + pinctrl-names = "default", "gpio"; + pinctrl-0 = <&pinctrl_i2c1>; + pinctrl-1 = <&pinctrl_i2c1_gpio>; + scl-gpios = <&gpio5 26 GPIO_ACTIVE_HIGH>; + sda-gpios = <&gpio5 27 GPIO_ACTIVE_HIGH>; }; |