diff options
| author | Yang QU <yang.qu@stericsson.com> | 2012-06-26 19:25:52 +0800 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2013-03-07 12:35:37 +0800 |
| commit | 0f4aa401853e07885707aedfc68c608051b0d6e4 (patch) | |
| tree | 80ff2a11824319eb46b5211097ea39f4422e14c1 /drivers | |
| parent | e82c5bdbf3aa26d22e9eab3626213795d8338da1 (diff) | |
ab8500-charger: Add backup battery charge voltages on the ab8540
Add 2.7v, 2.9v, 3.0v, 3.2v and 3.3v charging voltages for backup
battery. Before that only 2.5v, 2.6v, 2.8v, 3.1v were available.
Signed-off-by: Yang QU <yang.qu@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Maxime COQUELIN <maxime.coquelin@stericsson.com>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Tested-by: Xiao Mei ZHANG <xiaomei.zhang@stericsson.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/power/ab8500_charger.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c index 24b30b7ea5ca..fd3fa2beca2b 100644 --- a/drivers/power/ab8500_charger.c +++ b/drivers/power/ab8500_charger.c @@ -2836,6 +2836,7 @@ static int ab8500_charger_usb_get_property(struct power_supply *psy, static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) { int ret = 0; + u8 bup_vch_range = 0, vbup33_vrtcn = 0; /* Setup maximum charger current and voltage for ABB cut2.0 */ if (!is_ab8500_1p1_or_earlier(di->parent)) { @@ -2945,15 +2946,29 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) } /* Backup battery voltage and current */ + if (di->bm->bkup_bat_v > BUP_VCH_SEL_3P1V) + bup_vch_range = BUP_VCH_RANGE; + if (di->bm->bkup_bat_v == BUP_VCH_SEL_3P3V) + vbup33_vrtcn = VBUP33_VRTCN; + ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, AB8500_RTC_BACKUP_CHG_REG, - di->bm->bkup_bat_v | - di->bm->bkup_bat_i); + (di->bm->bkup_bat_v & 0x3) | di->bm->bkup_bat_i); if (ret) { dev_err(di->dev, "failed to setup backup battery charging\n"); goto out; } + if (is_ab8540(di->parent)) { + ret = abx500_set_register_interruptible(di->dev, + AB8500_RTC, + AB8500_RTC_CTRL1_REG, + bup_vch_range | vbup33_vrtcn); + if (ret) { + dev_err(di->dev, "failed to setup backup battery charging\n"); + goto out; + } + } /* Enable backup battery charging */ abx500_mask_and_set_register_interruptible(di->dev, |