From: Sean McNeil <[EMAIL PROTECTED]>
Don't change bt regulator at all if already at requested state, and
turn it to opposite on | off state before changing regulator voltage
and setting final state.
Signed-off-by: Sean McNeil <[EMAIL PROTECTED]>
---
arch/arm/plat-s3c24xx/neo1973_pm_bt.c | 10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_bt.c
b/arch/arm/plat-s3c24xx/neo1973_pm_bt.c
index dfc9ae8..e115d12 100644
--- a/arch/arm/plat-s3c24xx/neo1973_pm_bt.c
+++ b/arch/arm/plat-s3c24xx/neo1973_pm_bt.c
@@ -109,15 +109,17 @@ static ssize_t bt_write(struct device *dev, struct
device_attribute *attr,
#ifdef CONFIG_MACH_NEO1973_GTA02
case MACH_TYPE_NEO1973_GTA02:
- neo1973_gpb_setpin(GTA02_GPIO_BT_EN, on ? 0 : 1);
- if (on)
- pcf50633_voltage_set(pcf50633_global,
- PCF50633_REGULATOR_LDO4, 3200);
+ if (s3c2410_gpio_getpin(GTA02_GPIO_BT_EN) == on)
+ break;
+ neo1973_gpb_setpin(GTA02_GPIO_BT_EN, !on);
+ pcf50633_voltage_set(pcf50633_global,
+ PCF50633_REGULATOR_LDO4, on ? 3200 : 0);
pcf50633_onoff_set(pcf50633_global,
PCF50633_REGULATOR_LDO4, on);
vol = pcf50633_voltage_get(pcf50633_global,
PCF50633_REGULATOR_LDO4);
dev_info(dev, "GTA02 Set PCF50633 LDO4 = %d\n", vol);
+ neo1973_gpb_setpin(GTA02_GPIO_BT_EN, on);
break;
#endif /* CONFIG_MACH_NEO1973_GTA02 */
