diff options
| author | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2015-10-07 09:44:39 +0900 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2015-10-30 17:20:37 +0000 |
| commit | c2c9f1fe4bf2d6597bbaaab7514d9c9092b5b2f6 (patch) | |
| tree | b4119f97d7d83948045e23a63da5a9c735b50e79 /drivers/mfd | |
| parent | 2e44e28ad2628cd29a4829ffab06fe7e3b79469c (diff) | |
| download | linux-c2c9f1fe4bf2d6597bbaaab7514d9c9092b5b2f6.tar.bz2 | |
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>
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/sec-core.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c index 2d1137a7a0ee..589e5efc2d7f 100644 --- a/drivers/mfd/sec-core.c +++ b/drivers/mfd/sec-core.c @@ -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; |