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 v6: - Add commit message for the patches in defconfig, .dtsi and .dts files (Alex) - Order I2C instance base address in .dtsi file (Alex) - Add commit message for the patch in stm32429i-eval.dts (Alex) - Add link to the STM32F4 Soc ref manual where I2C device is described (Uwe) - Use more usal way to define constants with several lines (Uwe) - Remove rate variable from stm32f4_i2c_timings as it is not used (Uwe) - Remove irq variable from stm32f4_i2c_dev struct are they are only needed during probe (Uwe) - Add comment from datasheet to explain stm32f4_i2c_timings values (Uwe) - Rework i2c soft_reset implementation (Uwe) - Replace "it" by "irq" as it is a more usual abbreviation for interrupt (Uwe) - Add comment from datasheet to explain periph clk freq calculation (Uwe) - Use DIV_ROUND_UP instead of plain division when required (Uwe) - Add comment from datasheet to explain timing rise calculation (Uwe) - Rework timing rise calculation by using shorter computation (Uwe) - Remove (u8) cast when reading I2C data register (Uwe) - Rework isr_event routine to handle several events during one call of the routine (Uwe) - Precise which type of irq is failed when a irq request error occurs (Uwe) - Use devm_request_irq() instead of devm_request_threaded_irq() to avoid spurious evt irq when clearing status registers in threaded context M'boumba Cedric Madianga (5): dt-bindings: Document the STM32 I2C bindings i2c: Add STM32F4 I2C driver ARM: dts: stm32: Add I2C1 support for STM32F429 SoC ARM: dts: stm32: Add I2C1 support for STM32429 eval board ARM: configs: stm32: 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 | 896 +++++++++++++++++++++ 7 files changed, 972 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-stm32.txt create mode 100644 drivers/i2c/busses/i2c-stm32f4.c -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
