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regulator: pfuze100: allow misprogrammed ID 

prior to week 08 of 2013 Freescale misprogrammed between 1 and 3% of
PFUZE1000 parts with a ID=0x8 instead of the expected ID=0x0

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
This commit is contained in:
Tim Harvey 2013-11-05 21:17:25 -08:00 committed by Mark Brown
parent a1b6fa85c6
commit 236c427cbc
1 changed files with 9 additions and 3 deletions
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12
drivers/regulator/pfuze100-regulator.c
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@ -308,9 +308,15 @@ static int pfuze_identify(struct pfuze_chip *pfuze_chip)
if (ret)
return ret;
if (value & 0x0f) {
dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value);
return -ENODEV;
switch (value & 0x0f) {
/* Freescale misprogrammed 1-3% of parts prior to week 8 of 2013 as ID=8 */
case 0x8:
dev_info(pfuze_chip->dev, "Assuming misprogrammed ID=0x8");
case 0x0:
break;
default:
dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value);
return -ENODEV;
}
ret = regmap_read(pfuze_chip->regmap, PFUZE100_REVID, &value);