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mfd: sec-core: Dump PMIC revision to find out the HW 

There are different revisions of the same chipset. For example S2MPS13 has
more than 2 revisions. They differ slightly in regulator constraints.
Print the revision number to easily find which PMIC is used on the board.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Krzysztof Kozlowski 2015-10-07 09:44:39 +09:00 committed by Lee Jones
parent 2e44e28ad2
commit c2c9f1fe4b
1 changed files with 10 additions and 0 deletions
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10
drivers/mfd/sec-core.c
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@ -253,6 +253,15 @@ static const struct regmap_config s5m8767_regmap_config = {
.cache_type = REGCACHE_FLAT,
};
static void sec_pmic_dump_rev(struct sec_pmic_dev *sec_pmic)
{
unsigned int val;
/* For each device type, the REG_ID is always the first register */
if (!regmap_read(sec_pmic->regmap_pmic, S2MPS11_REG_ID, &val))
dev_dbg(sec_pmic->dev, "Revision: 0x%x\n", val);
}
#ifdef CONFIG_OF
/*
* Only the common platform data elements for s5m8767 are parsed here from the
@ -425,6 +434,7 @@ static int sec_pmic_probe(struct i2c_client *i2c,
goto err_mfd;
device_init_wakeup(sec_pmic->dev, sec_pmic->wakeup);
sec_pmic_dump_rev(sec_pmic);
return ret;