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authorJohan Hovold <jhovold@gmail.com>2012-05-10 12:11:28 (GMT)
committerSamuel Ortiz <sameo@linux.intel.com>2012-05-20 15:27:01 (GMT)
commitd9055dc501da6734e3cfea1ef236173bd8b645b1 (patch)
tree46e93c758bbe5321f901f91880b0909a738bc16d /drivers/mfd
parent879eed68265c8dcb2f2856ec96820fc93b7038c9 (diff)
downloadlinux-fsl-qoriq-d9055dc501da6734e3cfea1ef236173bd8b645b1.tar.xz
mfd: Add boost frequency and ovp to lm3533 platform data
Add boost-frequency and over-voltage-protection settings to platform data. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/lm3533-core.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/mfd/lm3533-core.c b/drivers/mfd/lm3533-core.c
index 75f4b7f..053438c 100644
--- a/drivers/mfd/lm3533-core.c
+++ b/drivers/mfd/lm3533-core.c
@@ -138,6 +138,35 @@ int lm3533_update(struct lm3533 *lm3533, u8 reg, u8 val, u8 mask)
}
EXPORT_SYMBOL_GPL(lm3533_update);
+static int lm3533_set_boost_freq(struct lm3533 *lm3533,
+ enum lm3533_boost_freq freq)
+{
+ int ret;
+
+ ret = lm3533_update(lm3533, LM3533_REG_BOOST_PWM,
+ freq << LM3533_BOOST_FREQ_SHIFT,
+ LM3533_BOOST_FREQ_MASK);
+ if (ret)
+ dev_err(lm3533->dev, "failed to set boost frequency\n");
+
+ return ret;
+}
+
+
+static int lm3533_set_boost_ovp(struct lm3533 *lm3533,
+ enum lm3533_boost_ovp ovp)
+{
+ int ret;
+
+ ret = lm3533_update(lm3533, LM3533_REG_BOOST_PWM,
+ ovp << LM3533_BOOST_OVP_SHIFT,
+ LM3533_BOOST_OVP_MASK);
+ if (ret)
+ dev_err(lm3533->dev, "failed to set boost ovp\n");
+
+ return ret;
+}
+
/*
* HVLED output config -- output hvled controlled by backlight bl
*/
@@ -521,6 +550,22 @@ static int __devinit lm3533_device_led_init(struct lm3533 *lm3533)
return 0;
}
+static int __devinit lm3533_device_setup(struct lm3533 *lm3533,
+ struct lm3533_platform_data *pdata)
+{
+ int ret;
+
+ ret = lm3533_set_boost_freq(lm3533, pdata->boost_freq);
+ if (ret)
+ return ret;
+
+ ret = lm3533_set_boost_ovp(lm3533, pdata->boost_ovp);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
static int __devinit lm3533_device_init(struct lm3533 *lm3533)
{
struct lm3533_platform_data *pdata = lm3533->dev->platform_data;
@@ -550,6 +595,10 @@ static int __devinit lm3533_device_init(struct lm3533 *lm3533)
lm3533_enable(lm3533);
+ ret = lm3533_device_setup(lm3533, pdata);
+ if (ret)
+ goto err_disable;
+
lm3533_device_als_init(lm3533);
lm3533_device_bl_init(lm3533);
lm3533_device_led_init(lm3533);
@@ -564,6 +613,7 @@ static int __devinit lm3533_device_init(struct lm3533 *lm3533)
err_unregister:
mfd_remove_devices(lm3533->dev);
+err_disable:
lm3533_disable(lm3533);
if (gpio_is_valid(lm3533->gpio_hwen))
gpio_free(lm3533->gpio_hwen);