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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>
This commit is contained in:
Paul Fertser 2009-11-05 00:24:58 +03:00 committed by Anton Vorontsov
parent e98c73a24f
commit 1282b35a1e
1 changed files with 7 additions and 3 deletions
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10
drivers/power/pcf50633-charger.c
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@ -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;