From b1c1df7a7d50bf94de89704e963467bc94b1fef9 Mon Sep 17 00:00:00 2001 From: Balaji T K Date: Mon, 30 May 2011 19:55:34 +0530 Subject: 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 Tested-by: Kishore Kadiyala Acked-by: Kishore Kadiyala Signed-off-by: Tony Lindgren --- drivers/mmc/host/omap_hsmmc.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/mmc/host/omap_hsmmc.c') diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 259ece047af..5b2e2155b41 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 -- cgit v1.2.3-70-g09d2