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| author | Balaji T K <balajitk@ti.com> | 2011-05-30 19:55:34 +0530 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2011-06-01 02:25:04 -0700 |
| commit | b1c1df7a7d50bf94de89704e963467bc94b1fef9 (patch) | |
| tree | be95cd2ed5cc248ac22cb31f3e6da382b135f41f /drivers | |
| parent | e68273baf30390e9c907831b47384085c7f664d5 (diff) | |
| download | linux-stable-b1c1df7a7d50bf94de89704e963467bc94b1fef9.tar.gz linux-stable-b1c1df7a7d50bf94de89704e963467bc94b1fef9.tar.bz2 linux-stable-b1c1df7a7d50bf94de89704e963467bc94b1fef9.zip | |
ARM: OMAP4: MMC: no regulator off during probe for eMMC
eMMC does not handle power off when not in sleep state,
Skip regulator disable during probe when eMMC is
not in known state - state left by bootloader.
Resolves eMMC failure on OMAP4
mmc0: error -110 whilst initialising MMC card
Signed-off-by: Balaji T K <balajitk@ti.com>
Tested-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Acked-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/omap_hsmmc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 259ece047afc..5b2e2155b413 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -435,6 +435,9 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host) reg = regulator_get(host->dev, "vmmc_aux"); host->vcc_aux = IS_ERR(reg) ? NULL : reg; + /* For eMMC do not power off when not in sleep state */ + if (mmc_slot(host).no_regulator_off_init) + return 0; /* * UGLY HACK: workaround regulator framework bugs. * When the bootloader leaves a supply active, it's |