From c2c9f1fe4bf2d6597bbaaab7514d9c9092b5b2f6 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 7 Oct 2015 09:44:39 +0900 Subject: 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 Signed-off-by: Lee Jones --- drivers/mfd/sec-core.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c index 2d1137a..589e5ef 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; -- cgit v1.1