diff options
| author | Tim Harvey <tharvey@gateworks.com> | 2013-11-06 06:17:25 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-12-09 18:19:30 +0100 |
| commit | 236c427cbc990e03ec8b39ce8ee9220705daeff9 (patch) | |
| tree | 42c53b6eccd48940f44afbd81006ee9786d2233c /drivers/regulator/pfuze100-regulator.c | |
| parent | regulator: pfuze100: Fix address of FABID (diff) | |
| download | linux-236c427cbc990e03ec8b39ce8ee9220705daeff9.tar.xz linux-236c427cbc990e03ec8b39ce8ee9220705daeff9.zip | |
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
Diffstat (limited to 'drivers/regulator/pfuze100-regulator.c')
| -rw-r--r-- | drivers/regulator/pfuze100-regulator.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c index 565a631fff70..8b5e4c712a01 100644 --- a/drivers/regulator/pfuze100-regulator.c +++ b/drivers/regulator/pfuze100-regulator.c @@ -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); |