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: Milo Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>

diff --git a/drivers/leds/leds-lp55xx-common.h b/drivers/leds/leds-lp55xx-common.h
index 04c1d4fc18c04768a652be63ae0f8a1c73845766..cceab483edd04a14174224a0d8b253a738376e66 100644 (file)
--- a/drivers/leds/leds-lp55xx-common.h
+++ b/drivers/leds/leds-lp55xx-common.h
@@ -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;