| From: |
| M'boumba Cedric Madianga <cedric.madianga-AT-gmail.com> |
| To: |
| wsa-AT-the-dreams.de, robh+dt-AT-kernel.org, mcoquelin.stm32-AT-gmail.com, alexandre.torgue-AT-st.com, linus.walleij-AT-linaro.org, patrice.chotard-AT-st.com, linux-AT-armlinux.org.uk, linux-i2c-AT-vger.kernel.org, devicetree-AT-vger.kernel.org, linux-arm-kernel-AT-lists.infradead.org, linux-kernel-AT-vger.kernel.org |
| Subject: |
| [PATCH v4 0/5] Add support for the STM32F4 I2C |
| Date: |
| Wed, 7 Dec 2016 17:51:27 +0100 |
| Message-ID: |
| <1481129492-26600-1-git-send-email-cedric.madianga@gmail.com> |
| Cc: |
| M'boumba Cedric Madianga <cedric.madianga-AT-gmail.com> |
This patchset adds support for the I2C controller embedded in STM32F4xx SoC.
It enables I2C transfer in interrupt mode with Standard-mode and Fast-mode bus
speed.
Changes since v3 after Wolfram's review:
- Add COMPILE_TEST flag in Kconfig
- Use correct driver name in Kconfig i.e i2c-stm32f4 instead of i2c-st
- Use more comprehensible name stm32f4_i2c_msg for client specific data
- Don't store reset control node as just needed in probe
- Use clamp() function to test value between 2 ranges
- Use new "i2c_8bit_addr_from_msg() function to build I2C address
- Don't write error messages for timeout
- Remove error message when i2c_add_adapter() fails as it is already handled by
the i2c core driver
M'boumba Cedric Madianga (5):
dt-bindings: Document the STM32 I2C bindings
i2c: Add STM32F4 I2C driver
ARM: dts: Add I2C1 support for STM32F429 SoC
ARM: dts: Add I2C1 support for STM32429 eval board
ARM: configs: Add I2C support for STM32 defconfig
.../devicetree/bindings/i2c/i2c-stm32.txt | 33 +
arch/arm/boot/dts/stm32429i-eval.dts | 6 +
arch/arm/boot/dts/stm32f429.dtsi | 23 +
arch/arm/configs/stm32_defconfig | 3 +
drivers/i2c/busses/Kconfig | 10 +
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-stm32f4.c | 857 +++++++++++++++++++++
7 files changed, 933 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i2c/i2c-stm32.txt
create mode 100644 drivers/i2c/busses/i2c-stm32f4.c
--
1.9.1
