Re: [PATCH 3/8] soc: renesas: rzn1-sysc: Export function to set dmamux

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On Fri, Feb 18, 2022 at 07:12:21PM +0100, Miquel Raynal wrote:
> The dmamux register is located within the system controller.
> 
> Without syscon, we need an extra helper in order to give write access to
> this register to a dmamux driver.
> 
> Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
> ---
>  drivers/clk/renesas/r9a06g032-clocks.c        | 27 +++++++++++++++++++
>  include/dt-bindings/clock/r9a06g032-sysctrl.h |  2 ++
>  include/linux/soc/renesas/r9a06g032-syscon.h  | 11 ++++++++
>  3 files changed, 40 insertions(+)
>  create mode 100644 include/linux/soc/renesas/r9a06g032-syscon.h

> diff --git a/include/dt-bindings/clock/r9a06g032-sysctrl.h b/include/dt-bindings/clock/r9a06g032-sysctrl.h
> index 90c0f3dc1ba1..609e7fe8fcb1 100644
> --- a/include/dt-bindings/clock/r9a06g032-sysctrl.h
> +++ b/include/dt-bindings/clock/r9a06g032-sysctrl.h
> @@ -145,4 +145,6 @@
>  #define R9A06G032_CLK_UART6		152
>  #define R9A06G032_CLK_UART7		153
>  
> +#define R9A06G032_SYSCON_DMAMUX		0xA0

That looks like a register offset? We generally don't put register 
offsets in DT.

> +
>  #endif /* __DT_BINDINGS_R9A06G032_SYSCTRL_H__ */



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