On 24 September 2014 11:07, Roger Tseng <rogerable@xxxxxxxxxxx> wrote:
> Define new macro MMC_POWER_UNDEFINED for power_mode in struct mmc_ios.
> It will also be set as the initial value of host->ios.power_mode in
> mmc_start_host().
>
> For hosts with MMC_CAP2_NO_PRESCAN_POWERUP, this makes the later
> mmc_power_off() do real power-off things instead of NOP, and further
> prevents state messed up in cards that was already initialized(eg. by
> BIOS of UEFI driver).
>
> Signed-off-by: Roger Tseng <rogerable@xxxxxxxxxxx>
Thanks! Applied for next!
I changes some minor parts of the commit message and set the author of
the patch to "Roger Tseng <rogerable@xxxxxxxxxxx>" instead of
"<rogerable@xxxxxxxxxxx>". Please fix that in for future patches.
Kind regards
Uffe
> ---
> drivers/mmc/core/core.c | 1 +
> include/linux/mmc/host.h | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
> index d03a080fb9cd..7dad1a1adf18 100644
> --- a/drivers/mmc/core/core.c
> +++ b/drivers/mmc/core/core.c
> @@ -2489,6 +2489,7 @@ void mmc_start_host(struct mmc_host *host)
> {
> host->f_init = max(freqs[0], host->f_min);
> host->rescan_disable = 0;
> + host->ios.power_mode = MMC_POWER_UNDEFINED;
> if (host->caps2 & MMC_CAP2_NO_PRESCAN_POWERUP)
> mmc_power_off(host);
> else
> diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
> index 7960424d0bc0..b3bfa609816a 100644
> --- a/include/linux/mmc/host.h
> +++ b/include/linux/mmc/host.h
> @@ -42,6 +42,7 @@ struct mmc_ios {
> #define MMC_POWER_OFF 0
> #define MMC_POWER_UP 1
> #define MMC_POWER_ON 2
> +#define MMC_POWER_UNDEFINED 3
>
> unsigned char bus_width; /* data bus width */
>
> --
> 1.7.10.4
>
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