[RFC 5/6] usb: gadget: atmel_usba: use atmel_io.h to provide on-chip IO

Felipe Balbi balbi at ti.com
Mon Apr 27 13:55:29 PDT 2015


On Thu, Mar 26, 2015 at 12:56:47PM +0100, Hans-Christian Egtvedt wrote:
> Around Thu 26 Mar 2015 11:45:53 +0000 or thereabout, Ben Dooks wrote:
> > Use <linux/atmel_io.h> to provide IO accessors which work on both
> > AVR32 and ARM for on-chip peripherals.
> > 
> > Signed-off-by: Ben Dooks <ben.dooks at codethink.co.uk>
> 
> Acked-by: Hans-Christian Egtvedt <egtvedt at samfundet.no>
> 
> > --
> > CC: Nicolas Ferre <nicolas.ferre at atmel.com>
> > CC: Felipe Balbi <balbi at ti.com>
> > CC: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
> > CC: linux-usb at vger.kernel.org
> > ---
> >  drivers/usb/gadget/udc/atmel_usba_udc.c |  1 +
> >  drivers/usb/gadget/udc/atmel_usba_udc.h | 12 +++---------
> >  2 files changed, 4 insertions(+), 9 deletions(-)
> > 
> > diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
> > index be2f503..6735585 100644
> > --- a/drivers/usb/gadget/udc/atmel_usba_udc.c
> > +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
> > @@ -13,6 +13,7 @@
> >  #include <linux/init.h>
> >  #include <linux/interrupt.h>
> >  #include <linux/io.h>
> > +#include <linux/atmel_io.h>
> >  #include <linux/slab.h>
> >  #include <linux/device.h>
> >  #include <linux/dma-mapping.h>
> > diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.h b/drivers/usb/gadget/udc/atmel_usba_udc.h
> > index 92bd486..3d40aa3 100644
> > --- a/drivers/usb/gadget/udc/atmel_usba_udc.h
> > +++ b/drivers/usb/gadget/udc/atmel_usba_udc.h
> > @@ -191,15 +191,9 @@
> >  	 | USBA_BF(name, value))
> >  
> >  /* Register access macros */
> > -#ifdef CONFIG_AVR32
> > -#define usba_io_readl	__raw_readl
> > -#define usba_io_writel	__raw_writel
> > -#define usba_io_writew	__raw_writew
> > -#else
> > -#define usba_io_readl	readl_relaxed
> > -#define usba_io_writel	writel_relaxed
> > -#define usba_io_writew	writew_relaxed
> > -#endif
> > +#define usba_io_readl	atmel_oc_readl
> > +#define usba_io_writel	atmel_oc_writel
> > +#define usba_io_writew	atmel_oc_writew
> 
> Same comment as earlier patch, it would be nice to remove the define
> usba_io_{read,write}{l,w} defines in a follow-up patch.

I'm fine with this too. Is this targetted at v4.2 ?

-- 
balbi
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