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
