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pm2301-charger: Enable SW EOC control on the ab9540

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End of charging is managed by SW.

Signed-off-by: Rajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Jonas ABERG <jonas.aberg@stericsson.com>
This commit is contained in:
Rajkumar Kasirajan 2012-06-05 12:31:25 +05:30 committed by Lee Jones
parent 116c326e74
commit 584f970339
1 changed files with 43 additions and 5 deletions
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48
drivers/power/pm2301_charger.c
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@ -192,11 +192,22 @@ static int pm2xxx_charging_disable_mngt(struct pm2xxx_charger *pm2)
{
int ret;
/* Disable SW EOC ctrl */
ret = pm2xxx_reg_write(pm2, PM2XXX_SW_CTRL_REG, PM2XXX_SWCTRL_HW);
if (ret < 0) {
dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__);
return ret;
}
/* Disable charging */
ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG2,
(PM2XXX_CH_AUTO_RESUME_DIS | PM2XXX_CHARGER_DIS));
if (ret < 0) {
dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__);
return ret;
}
return ret;
return 0;
}
static int pm2xxx_charger_batt_therm_mngt(struct pm2xxx_charger *pm2, int val)
@ -245,13 +256,29 @@ static int pm2xxx_charger_wd_exp_mngt(struct pm2xxx_charger *pm2, int val)
static int pm2xxx_charger_vbat_lsig_mngt(struct pm2xxx_charger *pm2, int val)
{
int ret;
switch (val) {
case PM2XXX_INT1_ITVBATLOWR:
dev_dbg(pm2->dev, "VBAT grows above VBAT_LOW level\n");
/* Enable SW EOC ctrl */
ret = pm2xxx_reg_write(pm2, PM2XXX_SW_CTRL_REG,
PM2XXX_SWCTRL_SW);
if (ret < 0) {
dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__);
return ret;
}
break;
case PM2XXX_INT1_ITVBATLOWF:
dev_dbg(pm2->dev, "VBAT drops below VBAT_LOW level\n");
/* Disable SW EOC ctrl */
ret = pm2xxx_reg_write(pm2, PM2XXX_SW_CTRL_REG,
PM2XXX_SWCTRL_HW);
if (ret < 0) {
dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__);
return ret;
}
break;
default:
@ -322,16 +349,27 @@ static int pm2_int_reg0(void *pm2_data, int val)
struct pm2xxx_charger *pm2 = pm2_data;
int ret = 0;
if (val & (PM2XXX_INT1_ITVBATLOWR | PM2XXX_INT1_ITVBATLOWF)) {
ret = pm2xxx_charger_vbat_lsig_mngt(pm2, val &
(PM2XXX_INT1_ITVBATLOWR | PM2XXX_INT1_ITVBATLOWF));
if (val & PM2XXX_INT1_ITVBATLOWR) {
ret = pm2xxx_charger_vbat_lsig_mngt(pm2,
PM2XXX_INT1_ITVBATLOWR);
if (ret < 0)
goto out;
}
if (val & PM2XXX_INT1_ITVBATLOWF) {
ret = pm2xxx_charger_vbat_lsig_mngt(pm2,
PM2XXX_INT1_ITVBATLOWF);
if (ret < 0)
goto out;
}
if (val & PM2XXX_INT1_ITVBATDISCONNECT) {
ret = pm2xxx_charger_bat_disc_mngt(pm2,
PM2XXX_INT1_ITVBATDISCONNECT);
if (ret < 0)
goto out;
}
out:
return ret;
}