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| author | Pierre-Yves MORDRET <pierre-yves.mordret@st.com> | 2018-11-19 12:03:31 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2018-11-27 13:07:23 +0100 |
| commit | 9d9aa7ec7baf62640cd4e1a869746b2356731e93 (patch) | |
| tree | 4584ca5894ba3f10035bbfa9bfdc9de863a3dc95 /Documentation/devicetree/bindings/i2c | |
| parent | e79ba3b55086f717d997114f45822605f97c1e41 (diff) | |
| download | linux-9d9aa7ec7baf62640cd4e1a869746b2356731e93.tar.bz2 | |
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 <pierre-yves.mordret@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-stm32.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-stm32.txt b/Documentation/devicetree/bindings/i2c/i2c-stm32.txt index 3b5489966634..69240e189b01 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>; }; |