OMAP2/3: mmc-twl4030: Free up MMC regulators while cleaning up
twl_mmc_cleanup() must free up the regulators that were
allocated by twl_mmc_late_init().
This eliminates the below error when 'omap_hsmmc' module is
repeatedly loaded and unloaded.
"sysfs: cannot create duplicate filename '/devices/platform
/mmci-omap-hs.0/microamps_requested_vmmc'"
Signed-off-by: Roger Quadros <ext-roger.quadros@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/mmc-twl4030.c b/arch/arm/mach-omap2/mmc-twl4030.c
index 1541fd4..3c04c2f 100644
--- a/arch/arm/mach-omap2/mmc-twl4030.c
+++ b/arch/arm/mach-omap2/mmc-twl4030.c
@@ -119,6 +119,7 @@
if (i != 0)
break;
ret = PTR_ERR(reg);
+ hsmmc[i].vcc = NULL;
goto err;
}
hsmmc[i].vcc = reg;
@@ -165,8 +166,13 @@
static void twl_mmc_cleanup(struct device *dev)
{
struct omap_mmc_platform_data *mmc = dev->platform_data;
+ int i;
gpio_free(mmc->slots[0].switch_pin);
+ for(i = 0; i < ARRAY_SIZE(hsmmc); i++) {
+ regulator_put(hsmmc[i].vcc);
+ regulator_put(hsmmc[i].vcc_aux);
+ }
}
#ifdef CONFIG_PM