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Message-id: <1444178681-16188-1-git-send-email-k.kozlowski@samsung.com> Date: Wed, 07 Oct 2015 09:44:39 +0900 From: Krzysztof Kozlowski <k.kozlowski@...sung.com> To: Sangbeom Kim <sbkim73@...sung.com>, Krzysztof Kozlowski <k.kozlowski@...sung.com>, Lee Jones <lee.jones@...aro.org>, linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>, Marek Szyprowski <m.szyprowski@...sung.com>, Chanwoo Choi <cw00.choi@...sung.com>, Inki Dae <inki.dae@...sung.com> Subject: [PATCH v2 1/3] 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@...sung.com> --- Changs since v1: None. --- drivers/mfd/sec-core.c | 10 ++++++++++ 1 file changed, 10 insertions(+) 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; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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