Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 36030978 authored by Milo Kim's avatar Milo Kim Committed by Bryan Wu
Browse files

leds: lp55xx: add common macros for device attributes 



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: default avatarMilo Kim <milo.kim@ti.com>
Signed-off-by: default avatarBryan Wu <cooloney@gmail.com>
parent 6841a91d

drivers/leds/leds-lp55xx-common.h

+47 −0
Original line number Diff line number Diff line
@@ -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;