On Wed, Jan 23, 2013 at 05:46:18PM +0100, Guennadi Liakhovetski wrote:
> Without barriers SDIO operations fail with runtime PM enabled.
>
> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
> ---
> drivers/mmc/host/tmio_mmc.h | 14 ++++++++------
> 1 files changed, 8 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
> index d857f5c..ad1a1c6 100644
> --- a/drivers/mmc/host/tmio_mmc.h
> +++ b/drivers/mmc/host/tmio_mmc.h
> @@ -159,19 +159,20 @@ int tmio_mmc_host_runtime_resume(struct device *dev);
>
> static inline u16 sd_ctrl_read16(struct tmio_mmc_host *host, int addr)
> {
> - return readw(host->ctl + (addr << host->bus_shift));
> + return ioread16(host->ctl + (addr << host->bus_shift));
> }
>
> static inline void sd_ctrl_read16_rep(struct tmio_mmc_host *host, int addr,
> u16 *buf, int count)
> {
> + wmb();
> readsw(host->ctl + (addr << host->bus_shift), buf, count);
> }
>
Some reason to not use ioread16_rep() and friends?
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