Hi Jerry,
On 12/6/2011 5:18 PM, r66093@xxxxxxxxxxxxx wrote:
> From: Jerry Huang <Chang-Ming.Huang@xxxxxxxxxxxxx>
>
> Before running get_cd() recall function to detect whether the card is
> present, must make sure the power is up.
>
> Signed-off-by: Jerry Huang <Chang-Ming.Huang@xxxxxxxxxxxxx>
> CC: Chris Ball <cjb@xxxxxxxxxx>
> ---
> changes for v2:
> - add the CC
>
> drivers/mmc/core/core.c | 2 ++
> 1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
> index 5278ffb..a08e6b1 100644
> --- a/drivers/mmc/core/core.c
> +++ b/drivers/mmc/core/core.c
> @@ -2066,8 +2066,10 @@ void mmc_rescan(struct work_struct *work)
> */
> mmc_bus_put(host);
>
> + mmc_power_up(host);
If get_cd is not defined, a power-up for sure isn't necessary:
> if (host->ops->get_cd && host->ops->get_cd(host) == 0)
> goto out;
Did you intent to leave it powered-up in case get_cd() fails?
> + mmc_power_off(host);
>
> mmc_claim_host(host);
> for (i = 0; i < ARRAY_SIZE(freqs); i++) {
--
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