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leds: lp55xx: add common macros for device attributes

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This patch provides common macros for LP5521 and LP5523 device attributes and
functions.

(Device attributes)
LP5521: 'mode', 'load' and 'selftest'
LP5523: 'mode', 'load', 'leds' and 'selftest'

(Permissions)
mode: R/W
load: Write-only
leds: R/W
selftest: Read-only

Couple of lines are duplicate, so use these macros for adding device attributes
in LP5521 and LP5523 drivers.

Signed-off-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
This commit is contained in:
Milo Kim 2013-08-08 12:46:43 +09:00 committed by Bryan Wu
parent 6841a91dc5
commit 36030978f5
1 changed files with 47 additions and 0 deletions
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47
drivers/leds/leds-lp55xx-common.h
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@ -29,6 +29,53 @@ enum lp55xx_engine_mode {
LP55XX_ENGINE_RUN,
};
#define LP55XX_DEV_ATTR_RW(name, show, store) \
DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show, store)
#define LP55XX_DEV_ATTR_RO(name, show) \
DEVICE_ATTR(name, S_IRUGO, show, NULL)
#define LP55XX_DEV_ATTR_WO(name, store) \
DEVICE_ATTR(name, S_IWUSR, NULL, store)
#define show_mode(nr) \
static ssize_t show_engine##nr##_mode(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
return show_engine_mode(dev, attr, buf, nr); \
}
#define store_mode(nr) \
static ssize_t store_engine##nr##_mode(struct device *dev, \
struct device_attribute *attr, \
const char *buf, size_t len) \
{ \
return store_engine_mode(dev, attr, buf, len, nr); \
}
#define show_leds(nr) \
static ssize_t show_engine##nr##_leds(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
return show_engine_leds(dev, attr, buf, nr); \
}
#define store_leds(nr) \
static ssize_t store_engine##nr##_leds(struct device *dev, \
struct device_attribute *attr, \
const char *buf, size_t len) \
{ \
return store_engine_leds(dev, attr, buf, len, nr); \
}
#define store_load(nr) \
static ssize_t store_engine##nr##_load(struct device *dev, \
struct device_attribute *attr, \
const char *buf, size_t len) \
{ \
return store_engine_load(dev, attr, buf, len, nr); \
}
struct lp55xx_led;
struct lp55xx_chip;