Re: [PATCH v3 1/9] kernel/resource: Introduce request_muxed_mem_region()

[Andy Shevchenko]

On Thu, Jan 20, 2022 at 1:06 AM Terry Bowman <terry.bowman@xxxxxxx> wrote:
>
> Support for requesting muxed memory region is implemented but not
> currently callable as a macro. Add the request muxed memory
> region macro.
>
> MMIO memory accesses can be synchronized using request_mem_region() which
> is already available. This call will return failure if the resource is
> busy. The 'muxed' version of this macro will handle a busy resource by
> using a wait queue to retry until the resource is available.

...

> @@ -262,6 +262,8 @@ resource_union(struct resource *r1, struct resource *r2, struct resource *r)
>  #define request_muxed_region(start,n,name)     __request_region(&ioport_resource, (start), (n), (name), IORESOURCE_MUXED)
>  #define __request_mem_region(start,n,name, excl) __request_region(&iomem_resource, (start), (n), (name), excl)
>  #define request_mem_region(start,n,name) __request_region(&iomem_resource, (start), (n), (name), 0)

> +#define request_muxed_mem_region(start, n, name) \
> +       __request_region(&iomem_resource, (start), (n), (name), IORESOURCE_MUXED)

Looking around tells me that this name is inconsistent, I would expect it to be

request_mem_region_muxed()

>  #define request_mem_region_exclusive(start,n,name) \
>         __request_region(&iomem_resource, (start), (n), (name), IORESOURCE_EXCLUSIVE)

If you are fine with this, take my
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>

-- 
With Best Regards,
Andy Shevchenko