linux-kernel - Re: [PATCH] drivers/of: Add devm_of

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Message-ID: <3312487e2b61b8c2f265d210d14bbed8681a9ecc.camel@kernel.crashing.org>
Date:   Fri, 15 Jun 2018 09:50:54 +1000
From:   Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drivers/of: Add devm_of_iomap()

On Thu, 2018-06-14 at 10:27 +0200, Geert Uytterhoeven wrote:
> > --- a/include/linux/of_address.h
> > +++ b/include/linux/of_address.h
> > @@ -40,6 +40,11 @@ extern void __iomem *of_iomap(struct device_node *device, int index);
> >   void __iomem *of_io_request_and_map(struct device_node *device,
> >                                      int index, const char *name);
> > 
> > +/* Request and map, wrapper on devm_ioremap_resource */
> > +extern void __iomem *devm_of_iomap(struct device *dev,
> > +                                  struct device_node *node, int index,
> > +                                  resource_size_t *size);
> > +
> >   /* Extract an address from a device, returns the region size and
> >    * the address space flags too. The PCI version uses a BAR number
> >    * instead of an absolute index
> 
> Do you need a dummy for !CONFIG_OF_ADDRESS, to aid compile-testing?

I didn't think so, as of_address_to_resource() already has a dummy, so
it should build fine.

Cheers,
Ben.