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yaml
---
r: 350643
b: refs/heads/master
c: b016322
h: refs/heads/master
i:
  350641: 80ddeac
  350639: fc43f52
v: v3
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Nicolas Guion authored and Lee Jones committed Jan 23, 2013
1 parent d2c9fed commit e0cd732
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Showing 2 changed files with 36 additions and 18 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: c9ade0fca3f7939194677353097b16c9795df46b
refs/heads/master: b016322293c7e3b7efb1835603d149c03d00b0df
52 changes: 35 additions & 17 deletions trunk/drivers/power/ab8500_charger.c
Original file line number Diff line number Diff line change
Expand Up @@ -95,6 +95,8 @@

#define CHG_WD_INTERVAL (60 * HZ)

#define AB8500_SW_CONTROL_FALLBACK 0x03

/* UsbLineStatus register - usb types */
enum ab8500_charger_link_status {
USB_STAT_NOT_CONFIGURED,
Expand Down Expand Up @@ -312,42 +314,58 @@ static enum power_supply_property ab8500_charger_usb_props[] = {
static void ab8500_enable_disable_sw_fallback(struct ab8500_charger *di,
bool fallback)
{
u8 val;
u8 reg;
u8 bank;
u8 bit;
int ret;

dev_dbg(di->dev, "SW Fallback: %d\n", fallback);

if (is_ab8500(di->parent)) {
bank = 0x15;
reg = 0x0;
bit = 3;
} else {
bank = AB8500_SYS_CTRL1_BLOCK;
reg = AB8500_SW_CONTROL_FALLBACK;
bit = 0;
}

/* read the register containing fallback bit */
ret = abx500_get_register_interruptible(di->dev, 0x15, 0x00, &reg);
if (ret) {
dev_err(di->dev, "%d write failed\n", __LINE__);
ret = abx500_get_register_interruptible(di->dev, bank, reg, &val);
if (ret < 0) {
dev_err(di->dev, "%d read failed\n", __LINE__);
return;
}

/* enable the OPT emulation registers */
ret = abx500_set_register_interruptible(di->dev, 0x11, 0x00, 0x2);
if (ret) {
dev_err(di->dev, "%d write failed\n", __LINE__);
return;
if (is_ab8500(di->parent)) {
/* enable the OPT emulation registers */
ret = abx500_set_register_interruptible(di->dev, 0x11, 0x00, 0x2);
if (ret) {
dev_err(di->dev, "%d write failed\n", __LINE__);
goto disable_otp;
}
}

if (fallback)
reg |= 0x8;
val |= (1 << bit);
else
reg &= ~0x8;
val &= ~(1 << bit);

/* write back the changed fallback bit value to register */
ret = abx500_set_register_interruptible(di->dev, 0x15, 0x00, reg);
ret = abx500_set_register_interruptible(di->dev, bank, reg, val);
if (ret) {
dev_err(di->dev, "%d write failed\n", __LINE__);
return;
}

/* disable the set OTP registers again */
ret = abx500_set_register_interruptible(di->dev, 0x11, 0x00, 0x0);
if (ret) {
dev_err(di->dev, "%d write failed\n", __LINE__);
return;
disable_otp:
if (is_ab8500(di->parent)) {
/* disable the set OTP registers again */
ret = abx500_set_register_interruptible(di->dev, 0x11, 0x00, 0x0);
if (ret) {
dev_err(di->dev, "%d write failed\n", __LINE__);
}
}
}

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