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mmc: sdio: enable runtime PM for SDIO cards 

Enable runtime PM for new SDIO cards.

As soon as the card will be added to the device tree, runtime PM core
will release its power, since it doesn't have any users yet.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Tested-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Ohad Ben-Cohen 2010-10-02 13:54:10 +02:00 committed by Chris Ball
parent 80fd933c44
commit 81968561bd
1 changed files with 13 additions and 0 deletions
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13
drivers/mmc/core/sdio.c
View File

@ -10,6 +10,7 @@
*/
#include <linux/err.h>
#include <linux/pm_runtime.h>
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
@ -707,6 +708,18 @@ int mmc_attach_sdio(struct mmc_host *host, u32 ocr)
goto err;
card = host->card;
/*
* Let runtime PM core know our card is active
*/
err = pm_runtime_set_active(&card->dev);
if (err)
goto remove;
/*
* Enable runtime PM for this card
*/
pm_runtime_enable(&card->dev);
/*
* The number of functions on the card is encoded inside
* the ocr.