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Groups > linux.kernel > #1546385
| From | M'boumba Cedric Madianga <cedric.madianga@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v7 1/5] dt-bindings: Document the STM32 I2C bindings |
| Date | 2016-12-22 14:50 +0100 |
| Message-ID | <sRbUS-1Hh-7@gated-at.bofh.it> (permalink) |
| References | <sRbLc-1E8-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
This patch adds documentation of device tree bindings for the STM32 I2C
controller.
Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
---
.../devicetree/bindings/i2c/i2c-stm32.txt | 33 ++++++++++++++++++++++
1 file changed, 33 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i2c/i2c-stm32.txt
diff --git a/Documentation/devicetree/bindings/i2c/i2c-stm32.txt b/Documentation/devicetree/bindings/i2c/i2c-stm32.txt
new file mode 100644
index 0000000..78eaf7b
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-stm32.txt
@@ -0,0 +1,33 @@
+* I2C controller embedded in STMicroelectronics STM32 I2C platform
+
+Required properties :
+- compatible : Must be "st,stm32f4-i2c"
+- reg : Offset and length of the register set for the device
+- interrupts : Must contain the interrupt id for I2C event and then the
+ interrupt id for I2C error.
+- resets: Must contain the phandle to the reset controller.
+- clocks: Must contain the input clock of the I2C instance.
+- A pinctrl state named "default" must be defined to set pins in mode of
+ operation for I2C transfer
+- #address-cells = <1>;
+- #size-cells = <0>;
+
+Optional properties :
+- clock-frequency : Desired I2C bus clock frequency in Hz. If not specified,
+ the default 100 kHz frequency will be used. As only Normal and Fast modes
+ are supported, possible values are 100000 and 400000.
+
+Example :
+
+ i2c@40005400 {
+ compatible = "st,stm32f4-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x40005400 0x400>;
+ interrupts = <31>,
+ <32>;
+ resets = <&rcc 277>;
+ clocks = <&rcc 0 149>;
+ pinctrl-0 = <&i2c1_sda_pin>, <&i2c1_scl_pin>;
+ pinctrl-names = "default";
+ };
--
1.9.1
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[PATCH v7 0/5] Add support for the STM32F4 I2C M'boumba Cedric Madianga <cedric.madianga@gmail.com> - 2016-12-22 14:40 +0100
[PATCH v7 5/5] ARM: configs: stm32: Add I2C support for STM32 defconfig M'boumba Cedric Madianga <cedric.madianga@gmail.com> - 2016-12-22 14:40 +0100
[PATCH v7 4/5] ARM: dts: stm32: Add I2C1 support for STM32429 eval board M'boumba Cedric Madianga <cedric.madianga@gmail.com> - 2016-12-22 14:40 +0100
[PATCH v7 3/5] ARM: dts: stm32: Add I2C1 support for STM32F429 SoC M'boumba Cedric Madianga <cedric.madianga@gmail.com> - 2016-12-22 14:50 +0100
Re: [PATCH v7 3/5] ARM: dts: stm32: Add I2C1 support for STM32F429 SoC Uwe Kleine-König <u.kleine-koenig@pengutronix.de> - 2016-12-22 20:20 +0100
Re: [PATCH v7 3/5] ARM: dts: stm32: Add I2C1 support for STM32F429 SoC "M'boumba Cedric Madianga" <cedric.madianga@gmail.com> - 2016-12-23 14:20 +0100
Re: [PATCH v7 3/5] ARM: dts: stm32: Add I2C1 support for STM32F429 SoC Linus Walleij <linus.walleij@linaro.org> - 2016-12-30 10:10 +0100
Re: [PATCH v7 3/5] ARM: dts: stm32: Add I2C1 support for STM32F429 SoC "M'boumba Cedric Madianga" <cedric.madianga@gmail.com> - 2016-12-30 15:40 +0100
[PATCH v7 2/5] i2c: Add STM32F4 I2C driver M'boumba Cedric Madianga <cedric.madianga@gmail.com> - 2016-12-22 14:50 +0100
Re: [PATCH v7 2/5] i2c: Add STM32F4 I2C driver Uwe Kleine-König <u.kleine-koenig@pengutronix.de> - 2016-12-23 10:10 +0100
Re: [PATCH v7 2/5] i2c: Add STM32F4 I2C driver Uwe Kleine-König <u.kleine-koenig@pengutronix.de> - 2016-12-28 22:30 +0100
Re: [PATCH v7 2/5] i2c: Add STM32F4 I2C driver "M'boumba Cedric Madianga" <cedric.madianga@gmail.com> - 2016-12-28 23:30 +0100
Re: [PATCH v7 2/5] i2c: Add STM32F4 I2C driver "M'boumba Cedric Madianga" <cedric.madianga@gmail.com> - 2017-01-02 14:40 +0100
[PATCH v7 1/5] dt-bindings: Document the STM32 I2C bindings M'boumba Cedric Madianga <cedric.madianga@gmail.com> - 2016-12-22 14:50 +0100
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