Re: [PATCH 0/4] stm32mp: add minimal RCC support for STM32MP13

[Sean Anderson <seanga2@gmail.com>]

Hi Patrick,

On 5/10/22 3:51 AM, Patrick Delaunay wrote:
> 
> Add a minimal support for STM32MP13 RCC, the reset and clock controller
> - update of the RCC MISC driver to bind the correct clock and reset driver
> - reset driver, same than STM32MP15x = drivers/reset/stm32-reset.c
> - clock driver, add a empty driver for STM32MP13x =
>    drivers/clk/stm32/clk-stm32mp13.c
> - Add RCC node in SOC device tree with u-boot,dm-pre-reloc property
> 
> This serie is only a preliminary step for STM32MP13 clock and reset support
> in U-Boot, based on Linux kernel binding introduced by [1] and it prepares
> the next device tree alignment with Linux kernel.
> 
> The functional STMP13 clock driver based on CCF and on SCMI clocks
> provided by OP-TEE and the clock and reset references in SOC device tree
> will be pushed when the associated patches in [1] will be accepted.
> 
> [1] Introduction of STM32MP13 RCC driver (Reset Clock Controller)
>      https://lore.kernel.org/linux-arm-kernel/20220316131000.9874-1-gabriel.fernandez@foss.st.com/

I'm not really sure what the purpose of this series is. Can you
elaborate a bit on why we need a dummy clock driver? Why don't
you just add the binding to the device tree without the associated
driver?

--Sean