[PATCH] riscv: add #define in asm/io.h for some device drivers

[Bin Meng]

Hi Wei,

On Thu, Sep 30, 2021 at 7:52 PM <tekkamanv at 163.com> wrote:
>
> From: TekkamanV <tekkamanv at starfivetech.com>
>
> This patch add memcpy_fromio and memcpy_toio definitions for some device

%s/add/adds

> drivers which has these definitions, like cadence_qspi_apb.c

%s/has/have

>
> Signed-off-by: TekkamanV <tekkamanv at starfivetech.com>

Please use real name for the contribution, i.e.: following kernel
submitting-patches.rst

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst#n409

> ---
>  arch/riscv/include/asm/io.h | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/arch/riscv/include/asm/io.h b/arch/riscv/include/asm/io.h
> index acf5a96449..b693fd8cd6 100644
> --- a/arch/riscv/include/asm/io.h
> +++ b/arch/riscv/include/asm/io.h
> @@ -64,6 +64,10 @@ static inline phys_addr_t map_to_sysmem(const void *ptr)
>  #define __raw_readl(a)                 __arch_getl(a)
>  #define __raw_readq(a)                 __arch_getq(a)
>
> +/* adding for some drivers, like cadence_qspi_apb.c */
> +#define memcpy_fromio(a, c, l)         memcpy((a), (c), (l))
> +#define memcpy_toio(c, a, l)           memcpy((c), (a), (l))
> +
>  #define dmb()          mb()
>  #define __iormb()      rmb()
>  #define __iowmb()      wmb()

Otherwise, LGTM:
Reviewed-by: Bin Meng <bmeng.cn at gmail.com>

Regards,
Bin