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| author | Oleksandr Dmytryshyn <oleksandr.dmytryshyn@ti.com> | 2012-04-26 12:46:51 +0300 |
|---|---|---|
| committer | Dmytro Kedrovskyi <x0169235@ti.com> | 2012-05-08 17:07:46 +0300 |
| commit | 069b8f4bad0acaec5b9b77c5a412143f4d8b0e09 (patch) | |
| tree | fcc07f6d005bf2026039d44b575ac0d10da6a979 /drivers/power | |
| parent | b65dba46890825d133b5f87287b2e8248d26eb56 (diff) | |
| download | kernel_samsung_espresso10-069b8f4bad0acaec5b9b77c5a412143f4d8b0e09.zip kernel_samsung_espresso10-069b8f4bad0acaec5b9b77c5a412143f4d8b0e09.tar.gz kernel_samsung_espresso10-069b8f4bad0acaec5b9b77c5a412143f4d8b0e09.tar.bz2 | |
MFD: TWL6032: Implementation of the ProDB00119490 errata
Residual voltage may be present on VBUS when USB cable is unplugged.
Workaround: Increase the VBUS anticollapse loop threshold to 4.44 V.
This errata affects only TWL6032 ES1.1
Change-Id: I7533fa7e3caa98e9e326f0c30cfb31d813303be8
Signed-off-by: Oleksandr Dmytryshyn <oleksandr.dmytryshyn@ti.com>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/twl6030_bci_battery.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/power/twl6030_bci_battery.c b/drivers/power/twl6030_bci_battery.c index 70482ad..b54248d 100644 --- a/drivers/power/twl6030_bci_battery.c +++ b/drivers/power/twl6030_bci_battery.c @@ -2325,6 +2325,25 @@ static int __devinit twl6030_bci_battery_probe(struct platform_device *pdev) wake_lock_init(&chrg_lock, WAKE_LOCK_SUSPEND, "ac_chrg_wake_lock"); + if (di->errata & TWL6032_ERRATA_DB00119490) { + /* + * Set Anti-collapse threshold correspond + * to the ERRATA DB00119490 (4.4 volts) + */ + ret = twl_i2c_read_u8(TWL6030_MODULE_CHARGER, ®, + ANTICOLLAPSE_CTRL1); + if (ret) + goto temp_setup_fail; + + reg = reg & 0x1F; + reg = reg | ((0x3) << BUCK_VTH_SHIFT); + ret = twl_i2c_write_u8(TWL6030_MODULE_CHARGER, reg, + ANTICOLLAPSE_CTRL1); + + if (ret) + goto temp_setup_fail; + } + /* settings for temperature sensing */ ret = twl6030battery_temp_setup(true); if (ret) |