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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 /arch/arm/mach-omap2 | |
| parent | e68273baf30390e9c907831b47384085c7f664d5 (diff) | |
| download | kernel_samsung_smdk4412-b1c1df7a7d50bf94de89704e963467bc94b1fef9.zip kernel_samsung_smdk4412-b1c1df7a7d50bf94de89704e963467bc94b1fef9.tar.gz kernel_samsung_smdk4412-b1c1df7a7d50bf94de89704e963467bc94b1fef9.tar.bz2 | |
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 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/board-4430sdp.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/hsmmc.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/hsmmc.h | 1 |
3 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index 9ea2694..63de2d3 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -322,6 +322,7 @@ static struct omap2_hsmmc_info mmc[] = { .gpio_wp = -EINVAL, .nonremovable = true, .ocr_mask = MMC_VDD_29_30, + .no_off_init = true, }, { .mmc = 1, diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index b2f30be..857f7da 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -331,6 +331,9 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c, if (c->no_off) mmc->slots[0].no_off = 1; + if (c->no_off_init) + mmc->slots[0].no_regulator_off_init = c->no_off_init; + if (c->vcc_aux_disable_is_sleep) mmc->slots[0].vcc_aux_disable_is_sleep = 1; diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h index f119348..f757e78 100644 --- a/arch/arm/mach-omap2/hsmmc.h +++ b/arch/arm/mach-omap2/hsmmc.h @@ -18,6 +18,7 @@ struct omap2_hsmmc_info { bool nonremovable; /* Nonremovable e.g. eMMC */ bool power_saving; /* Try to sleep or power off when possible */ bool no_off; /* power_saving and power is not to go off */ + bool no_off_init; /* no power off when not in MMC sleep state */ bool vcc_aux_disable_is_sleep; /* Regulator off remapped to sleep */ int gpio_cd; /* or -EINVAL */ int gpio_wp; /* or -EINVAL */ |