openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

mfd: Remove lm3533 boost attributes 

Remove boost-frequency and ovp attributes, which can be set through
platform data, from sysfs.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Johan Hovold 2012-05-10 14:11:29 +02:00 committed by Samuel Ortiz
parent d9055dc501
commit f4cf18ca59
2 changed files with 0 additions and 111 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
Documentation/ABI/testing/sysfs-bus-i2c-devices-lm3533
View File

@ -1,26 +1,3 @@
What: /sys/bus/i2c/devices/.../boost_freq
Date: April 2012
KernelVersion: 3.5
Contact: Johan Hovold <jhovold@gmail.com>
Description:
Set the boost converter switching frequency (0, 1), where
0 - 500Hz
1 - 1000Hz
What: /sys/bus/i2c/devices/.../boost_ovp
Date: April 2012
KernelVersion: 3.5
Contact: Johan Hovold <jhovold@gmail.com>
Description:
Set the boost converter over-voltage protection threshold
(0..3), where
0 - 16V
1 - 24V
2 - 32V
3 - 40V
What: /sys/bus/i2c/devices/.../output_hvled[n]
Date: April 2012
KernelVersion: 3.5

88
drivers/mfd/lm3533-core.c
View File

@ -26,11 +26,9 @@
#include <linux/mfd/lm3533.h>
#define LM3533_BOOST_OVP_MAX 0x03
#define LM3533_BOOST_OVP_MASK 0x06
#define LM3533_BOOST_OVP_SHIFT 1
#define LM3533_BOOST_FREQ_MAX 0x01
#define LM3533_BOOST_FREQ_MASK 0x01
#define LM3533_BOOST_FREQ_SHIFT 0
@ -253,96 +251,12 @@ struct lm3533_device_attribute {
struct {
u8 id;
} output;
struct {
u8 reg;
u8 shift;
u8 mask;
u8 max;
} generic;
} u;
};
#define to_lm3533_dev_attr(_attr) \
container_of(_attr, struct lm3533_device_attribute, dev_attr)
static ssize_t show_lm3533_reg(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct lm3533 *lm3533 = dev_get_drvdata(dev);
struct lm3533_device_attribute *lattr = to_lm3533_dev_attr(attr);
u8 val;
int ret;
ret = lm3533_read(lm3533, lattr->u.generic.reg, &val);
if (ret)
return ret;
val = (val & lattr->u.generic.mask) >> lattr->u.generic.shift;
return scnprintf(buf, PAGE_SIZE, "%u\n", val);
}
static ssize_t store_lm3533_reg(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
struct lm3533 *lm3533 = dev_get_drvdata(dev);
struct lm3533_device_attribute *lattr = to_lm3533_dev_attr(attr);
u8 val;
int ret;
if (kstrtou8(buf, 0, &val) || val > lattr->u.generic.max)
return -EINVAL;
val = val << lattr->u.generic.shift;
ret = lm3533_update(lm3533, lattr->u.generic.reg, val,
lattr->u.generic.mask);
if (ret)
return ret;
return len;
}
#define GENERIC_ATTR(_reg, _max, _mask, _shift) \
{ .reg = _reg, \
.max = _max, \
.mask = _mask, \
.shift = _shift }
#define LM3533_GENERIC_ATTR(_name, _mode, _show, _store, _type, \
_reg, _max, _mask, _shift) \
struct lm3533_device_attribute lm3533_dev_attr_##_name = { \
.dev_attr = __ATTR(_name, _mode, _show, _store), \
.type = _type, \
.u.generic = GENERIC_ATTR(_reg, _max, _mask, _shift) }
#define LM3533_GENERIC_ATTR_RW(_name, _type, _reg, _max, _mask, _shift) \
LM3533_GENERIC_ATTR(_name, S_IRUGO | S_IWUSR, \
show_lm3533_reg, store_lm3533_reg, \
_type, _reg, _max, _mask, _shift)
#define LM3533_BOOST_ATTR_RW(_name, _NAME) \
LM3533_GENERIC_ATTR_RW(_name, LM3533_ATTR_TYPE_BACKLIGHT, \
LM3533_REG_BOOST_PWM, LM3533_##_NAME##_MAX, \
LM3533_##_NAME##_MASK, LM3533_##_NAME##_SHIFT)
/*
* Boost Over Voltage Protection Select
*
* 0 - 16 V (default)
* 1 - 24 V
* 2 - 32 V
* 3 - 40 V
*/
static LM3533_BOOST_ATTR_RW(boost_ovp, BOOST_OVP);
/*
* Boost Frequency Select
*
* 0 - 500 kHz (default)
* 1 - 1 MHz
*/
static LM3533_BOOST_ATTR_RW(boost_freq, BOOST_FREQ);
static ssize_t show_output(struct device *dev,
struct device_attribute *attr, char *buf)
{
@ -432,8 +346,6 @@ static LM3533_OUTPUT_LVLED_ATTR_RW(4);
static LM3533_OUTPUT_LVLED_ATTR_RW(5);
static struct attribute *lm3533_attributes[] = {
&lm3533_dev_attr_boost_freq.dev_attr.attr,
&lm3533_dev_attr_boost_ovp.dev_attr.attr,
&lm3533_dev_attr_output_hvled1.dev_attr.attr,
&lm3533_dev_attr_output_hvled2.dev_attr.attr,
&lm3533_dev_attr_output_lvled1.dev_attr.attr,