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

Hans-Christian Egtvedt egtvedt at samfundet.no
Thu Mar 26 04:56:47 PDT 2015


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.

<snipp diff>

-- 
mvh
Hans-Christian Egtvedt



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