[PATCH 09/13] spi: atmel: use endian agnostic IO
Nicolas Ferre
nicolas.ferre at atmel.com
Thu Mar 19 01:53:55 PDT 2015
Le 18/03/2015 16:53, Ben Dooks a écrit :
> Use the endian agnositc IO functions instead of the __raw ones for when
> the driver is in use on big-endian systems.
>
> Signed-off-by: Ben Dooks <ben.dooks at codethink.co.uk>
Looks good to me:
Acked-by: Nicolas Ferre <nicolas.ferre at atmel.com>
Mark,
There is no dependency on the series, so you can take this one right now.
Bye.
> --
> CC: Nicolas Ferre <nicolas.ferre at atmel.com> (supporter:ATMEL SPI DRIVER)
> CC: Mark Brown <broonie at kernel.org> (maintainer:SPI SUBSYSTEM)
> CC: linux-spi at vger.kernel.org (open list:SPI SUBSYSTEM)
> ---
> drivers/spi/spi-atmel.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
> index 06de340..a2f40b1 100644
> --- a/drivers/spi/spi-atmel.c
> +++ b/drivers/spi/spi-atmel.c
> @@ -180,11 +180,17 @@
> | SPI_BF(name, value))
>
> /* Register access macros */
> +#ifdef CONFIG_AVR32
> #define spi_readl(port, reg) \
> __raw_readl((port)->regs + SPI_##reg)
> #define spi_writel(port, reg, value) \
> __raw_writel((value), (port)->regs + SPI_##reg)
> -
> +#else
> +#define spi_readl(port, reg) \
> + readl_relaxed((port)->regs + SPI_##reg)
> +#define spi_writel(port, reg, value) \
> + writel_relaxed((value), (port)->regs + SPI_##reg)
> +#endif
> /* use PIO for small transfers, avoiding DMA setup/teardown overhead and
> * cache operations; better heuristics consider wordsize and bitrate.
> */
>
--
Nicolas Ferre
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