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| author | Paul Fertser <fercerpav@gmail.com> | 2009-11-05 00:24:58 +0300 |
|---|---|---|
| committer | Anton Vorontsov <cbouatmailru@gmail.com> | 2009-11-16 03:31:40 +0300 |
| commit | 1282b35a1edf5f12ae58a2b16ae8615dfe0d9ecc (patch) | |
| tree | 9262529155d3e741e0afde7b8d9bdd0708d70181 /drivers/power | |
| parent | e98c73a24f33d6f54402f5cef2e7bf282d1d1fcc (diff) | |
| download | lwn-1282b35a1edf5f12ae58a2b16ae8615dfe0d9ecc.tar.gz lwn-1282b35a1edf5f12ae58a2b16ae8615dfe0d9ecc.zip | |
pcf50633: Properly reenable charging when the supply conditions change
If chgmod == BATFULL, setting chgena has no effect. Datasheet says we
need to set resume instead but when autoresume is used resume doesn't
work. Clear and set chgena instead.
This enables a user to force charging by re-plugging USB even when the
charger entered Battery Full mode, might be handy before a long trip.
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/pcf50633-charger.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/power/pcf50633-charger.c b/drivers/power/pcf50633-charger.c index 338311996eea..47187337b96c 100644 --- a/drivers/power/pcf50633-charger.c +++ b/drivers/power/pcf50633-charger.c @@ -92,14 +92,18 @@ int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma) chgmod = (mbcs2 & PCF50633_MBCS2_MBC_MASK); /* If chgmod == BATFULL, setting chgena has no effect. - * We need to set resume instead. + * Datasheet says we need to set resume instead but when autoresume is + * used resume doesn't work. Clear and set chgena instead. */ if (chgmod != PCF50633_MBCS2_MBC_BAT_FULL) pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_MBCC1, PCF50633_MBCC1_CHGENA, PCF50633_MBCC1_CHGENA); - else + else { + pcf50633_reg_clear_bits(pcf, PCF50633_REG_MBCC1, + PCF50633_MBCC1_CHGENA); pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_MBCC1, - PCF50633_MBCC1_RESUME, PCF50633_MBCC1_RESUME); + PCF50633_MBCC1_CHGENA, PCF50633_MBCC1_CHGENA); + } mbc->usb_active = charging_start; |