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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>
hifive-unleashed-5.1
Johan Hovold 2012-05-10 14:11:28 +02:00 committed by Samuel Ortiz
parent 879eed6826
commit d9055dc501
2 changed files with 65 additions and 0 deletions
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50
drivers/mfd/lm3533-core.c
View File

@ -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);

15
include/linux/mfd/lm3533.h
View File

@ -59,9 +59,24 @@ struct lm3533_led_platform_data {
u8 pwm; /* 0 - 0x3f */
};
enum lm3533_boost_freq {
LM3533_BOOST_FREQ_500KHZ,
LM3533_BOOST_FREQ_1000KHZ,
};
enum lm3533_boost_ovp {
LM3533_BOOST_OVP_16V,
LM3533_BOOST_OVP_24V,
LM3533_BOOST_OVP_32V,
LM3533_BOOST_OVP_40V,
};
struct lm3533_platform_data {
int gpio_hwen;
enum lm3533_boost_ovp boost_ovp;
enum lm3533_boost_freq boost_freq;
struct lm3533_als_platform_data *als;
struct lm3533_bl_platform_data *backlights;