Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 9d9aa7ec authored by Pierre-Yves MORDRET's avatar Pierre-Yves MORDRET Committed by Wolfram Sang
Browse files

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: default avatarPierre-Yves MORDRET <pierre-yves.mordret@st.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent e79ba3b5

Documentation/devicetree/bindings/i2c/i2c-stm32.txt

+6 −0
Original line number Original line Diff line number Diff line
@@ -26,6 +26,11 @@ Optional properties : 
- i2c-scl-falling-time-ns : Only for STM32F7, I2C SCL Falling time for the board

- i2c-scl-falling-time-ns : Only for STM32F7, I2C SCL Falling time for the board

  (default: 10)

  (default: 10)

  I2C Timings are derived from these 2 values

  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 :

Example :
@@ -53,4 +58,5 @@ Example : 
		clocks = <&rcc 1 CLK_I2C1>;

		clocks = <&rcc 1 CLK_I2C1>;

		pinctrl-0 = <&i2c1_sda_pin>, <&i2c1_scl_pin>;

		pinctrl-0 = <&i2c1_sda_pin>, <&i2c1_scl_pin>;

		pinctrl-names = "default";

		pinctrl-names = "default";

		st,syscfg-fmp = <&syscfg 0x4 0x1>;

	};
 
	};