From: Pierre-Yves MORDRET Date: Mon, 19 Nov 2018 11:03:31 +0000 (+0100) Subject: dt-bindings: i2c-stm32: SYSCFG Fast Mode Plus support for I2C STM32F7 X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9d9aa7ec7baf62640cd4e1a869746b2356731e93;p=linux.git dt-bindings: i2c-stm32: SYSCFG Fast Mode Plus support for I2C STM32F7 Append optional bindings to update SYSCFG Fast Mode Plus bits if Fast Mode Plus speed is selected. Signed-off-by: Pierre-Yves MORDRET Reviewed-by: Rob Herring Signed-off-by: Wolfram Sang --- diff --git a/Documentation/devicetree/bindings/i2c/i2c-stm32.txt b/Documentation/devicetree/bindings/i2c/i2c-stm32.txt index 3b54899666342..69240e189b01e 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-stm32.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-stm32.txt @@ -26,6 +26,11 @@ Optional properties : - i2c-scl-falling-time-ns : Only for STM32F7, I2C SCL Falling time for the board (default: 10) I2C Timings are derived from these 2 values +- st,syscfg-fmp: Only for STM32F7, use to set Fast Mode Plus bit within SYSCFG + whether Fast Mode Plus speed is selected by slave. + 1st cell : phandle to syscfg + 2nd cell : register offset within SYSCFG + 3rd cell : register bitmask for FMP bit Example : @@ -53,4 +58,5 @@ Example : clocks = <&rcc 1 CLK_I2C1>; pinctrl-0 = <&i2c1_sda_pin>, <&i2c1_scl_pin>; pinctrl-names = "default"; + st,syscfg-fmp = <&syscfg 0x4 0x1>; };