diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2012-03-15 16:09:17 +0000 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-03-15 16:09:21 +0000 |
| commit | 065319c229c76ded943a8a7cf55e1e6e1e55ae69 (patch) | |
| tree | 6b16c74b13eb2d8147aa346aa0dec247a8cd0a28 /drivers/mmc/core/sdio.c | |
| parent | c77ef898625f558c89c6ca0b27e2032f0fad4196 (diff) | |
| parent | 63ecf0a9b55ada8c59ac10472c4468b46cf2e97a (diff) | |
Merge branch 'board-specific' of git://github.com/hzhuang1/linux into next/boards
* 'board-specific' of git://github.com/hzhuang1/linux:
pxa/hx4700: Remove pcmcia platform_device structure
ARM: pxa/hx4700: Reduce sleep mode battery discharge by 35%
ARM: pxa/hx4700: Remove unwanted request for GPIO105
(update to 3.3-rc7)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/mmc/core/sdio.c')
| -rw-r--r-- | drivers/mmc/core/sdio.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index 12cde6ee17f..2c7c83f832d 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -585,6 +585,9 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr, * Inform the card of the voltage */ if (!powered_resume) { + /* The initialization should be done at 3.3 V I/O voltage. */ + mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330, 0); + err = mmc_send_io_op_cond(host, host->ocr, &ocr); if (err) goto err; @@ -996,6 +999,11 @@ static int mmc_sdio_power_restore(struct mmc_host *host) * With these steps taken, mmc_select_voltage() is also required to * restore the correct voltage setting of the card. */ + + /* The initialization should be done at 3.3 V I/O voltage. */ + if (!mmc_card_keep_power(host)) + mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330, 0); + sdio_reset(host); mmc_go_idle(host); mmc_send_if_cond(host, host->ocr_avail); |