linux-kernel - [PATCH] mfd: add tps65910 32-kHz-crystal-input init

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Date:	Wed, 11 Jul 2012 15:44:33 +0200
From:	Johan Hovold <jhovold@...il.com>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	Johan Hovold <jhovold@...il.com>
Subject: [PATCH] mfd: add tps65910 32-kHz-crystal-input init

Replace tps65910_misc_init with a dedicated init function for the
32-kHz-crystal input.

Signed-off-by: Johan Hovold <jhovold@...il.com>
---

Hi Samuel,

How about something like this? My thought with misc_init was that it could be
extended should more simple initialisation like for the ck32k_xtal need to be
done, but perhaps it's cleaner to stick with dedicated init functions
through-out. At least for now.

Thanks,
Johan


 drivers/mfd/tps65910.c |   19 +++++++++----------
 1 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index 3f27ea1..1c56379 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -68,20 +68,19 @@ static const struct regmap_config tps65910_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static int __devinit tps65910_misc_init(struct tps65910 *tps65910,
+static int __devinit tps65910_ck32k_init(struct tps65910 *tps65910,
 					struct tps65910_board *pmic_pdata)
 {
-	struct device *dev = tps65910->dev;
 	int ret;
 
-	if (pmic_pdata->en_ck32k_xtal) {
-		ret = tps65910_reg_clear_bits(tps65910,
-						TPS65910_DEVCTRL,
+	if (!pmic_pdata->en_ck32k_xtal)
+		return 0;
+
+	ret = tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
 						DEVCTRL_CK32K_CTRL_MASK);
-		if (ret < 0) {
-			dev_err(dev, "clear ck32k_ctrl failed: %d\n", ret);
-			return ret;
-		}
+	if (ret < 0) {
+		dev_err(tps65910->dev, "clear ck32k_ctrl failed: %d\n", ret);
+		return ret;
 	}
 
 	return 0;
@@ -265,7 +264,7 @@ static __devinit int tps65910_i2c_probe(struct i2c_client *i2c,
 	init_data->irq_base = pmic_plat_data->irq_base;
 
 	tps65910_irq_init(tps65910, init_data->irq, init_data);
-	tps65910_misc_init(tps65910, pmic_plat_data);
+	tps65910_ck32k_init(tps65910, pmic_plat_data);
 	tps65910_sleepinit(tps65910, pmic_plat_data);
 
 	return ret;
-- 
1.7.8.6

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