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Subject[PATCH 3.12 121/212] regulator: pfuze100: allow misprogrammed ID
Date
3.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tim Harvey <tharvey@gateworks.com>

commit 88baf7148e899db7e0b676e4363647f50e48eaed upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/regulator/pfuze100-regulator.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)

--- a/drivers/regulator/pfuze100-regulator.c
+++ b/drivers/regulator/pfuze100-regulator.c
@@ -308,9 +308,15 @@ static int pfuze_identify(struct pfuze_c
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);



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