[U-Boot] [PATCH v2 1/1] i2c: add i2c driver for stm32

[Simon Glass]

On 9 August 2017 at 06:45,  <patrice.chotard at st.com> wrote:
> From: Patrice Chotard <patrice.chotard at st.com>
>
> Add i2c driver which can be used on both STM32F7 and STM32H7.
> This I2C block supports the following features:
>  _ Slave and master modes
>  _ Multimaster capability
>  _ Standard-mode (up to 100 kHz)
>  _ Fast-mode (up to 400 kHz)
>  _ Fast-mode Plus (up to 1 MHz)
>  _ 7-bit and 10-bit addressing mode
>  _ Multiple 7-bit slave addresses (2 addresses, 1 with configurable mask)
>  _ All 7-bit addresses acknowledge mode
>  _ General call
>  _ Programmable setup and hold times
>  _ Easy to use event management
>  _ Optional clock stretching
>  _ Software reset
>
> Signed-off-by: Christophe Kerello <christophe.kerello at st.com>
> Signed-off-by: Patrice Chotard <patrice.chotard at st.com>
> ---
>
> v2:     _ add I2C controller description in Kconfig
>         _ rename stm32_i2c_dev struct to stm32_i2c_priv
>         _ add comment for stm32_i2c_handle_reload()
>         _ split stm32_i2c_compute_timing() code and add :
>             _ stm32_i2c_compute_solutions() which computes list of possible timings candidate
>             _ stm32_i2c_choose_solution() which selects the best timing
>         _ use #defines instead of hard coded vlaue for speed in
>           stm32_i2c_set_bus_speed() and in i2c_specs[] array
>         _ move part of code of stm32_i2c_probe() inside stm32_ofdata_to_platdata()
>
>  doc/device-tree-bindings/i2c/i2c-stm32.txt |  30 +
>  drivers/i2c/Kconfig                        |  20 +
>  drivers/i2c/Makefile                       |   1 +
>  drivers/i2c/stm32f7_i2c.c                  | 882 +++++++++++++++++++++++++++++
>  4 files changed, 933 insertions(+)
>  create mode 100644 doc/device-tree-bindings/i2c/i2c-stm32.txt
>  create mode 100644 drivers/i2c/stm32f7_i2c.c

Reviewed-by: Simon Glass <sjg at chromium.org>