On Tue, Sep 13, 2016 at 12:56:15PM +0200, Simon Horman wrote:
> Add tuning support for use with SDR104 mode
> This includes adding support for the sampling clock controller (SCC).
>
> Based on work by Ai Kyuse.
>
> Cc: Ai Kyuse <ai.kyuse.uw@xxxxxxxxxxx>
> Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
...
> Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
> ---
> drivers/mmc/host/sh_mobile_sdhi.c | 265 +++++++++++++++++++++++++++++++++++++-
> 1 file changed, 264 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
> index 49edff7fee49..32d3e01e0840 100644
> --- a/drivers/mmc/host/sh_mobile_sdhi.c
> +++ b/drivers/mmc/host/sh_mobile_sdhi.c
...
> +static void sh_mobile_sdhi_hw_reset(struct tmio_mmc_host *host)
> +{
> + struct sh_mobile_sdhi *priv;
> +
> + if (host->mmc->caps & MMC_CAP_UHS_SDR104)
> + return;
The logic above is inverted, it should be:
if (!(host->mmc->caps & MMC_CAP_UHS_SDR104))
return;
An observable side effect of the above is that on the r8a7796/Salvator-X
a card is not detected after being ejected and re-inserted.
