leds-lp55xx: use lp55xx common init function - platform data

 LP5521/5523 platform data functions are moved to lp55xx common driver.
 New init function, lp55xx_init_device() is created.

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

1 files changed, 34 insertions, 0 deletions

diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 1c716ecfa817..05a854c0d9b2 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -12,6 +12,7 @@
  * Derived from leds-lp5521.c, leds-lp5523.c
  */
 
+#include <linux/delay.h>
 #include <linux/i2c.h>
 #include <linux/leds.h>
 #include <linux/module.h>
@@ -54,6 +55,39 @@ int lp55xx_update_bits(struct lp55xx_chip *chip, u8 reg, u8 mask, u8 val)
 }
 EXPORT_SYMBOL_GPL(lp55xx_update_bits);
 
+int lp55xx_init_device(struct lp55xx_chip *chip)
+{
+        struct lp55xx_platform_data *pdata;
+        struct device *dev = &chip->cl->dev;
+        int ret = 0;
+
+        WARN_ON(!chip);
+
+        pdata = chip->pdata;
+
+        if (!pdata)
+                return -EINVAL;
+
+        if (pdata->setup_resources) {
+                ret = pdata->setup_resources();
+                if (ret < 0) {
+                        dev_err(dev, "setup resoure err: %d\n", ret);
+                        goto err;
+                }
+        }
+
+        if (pdata->enable) {
+                pdata->enable(0);
+                usleep_range(1000, 2000); /* Keep enable down at least 1ms */
+                pdata->enable(1);
+                usleep_range(1000, 2000); /* 500us abs min. */
+        }
+
+err:
+        return ret;
+}
+EXPORT_SYMBOL_GPL(lp55xx_init_device);
+
 MODULE_AUTHOR("Milo Kim <milo.kim@ti.com>");
 MODULE_DESCRIPTION("LP55xx Common Driver");
 MODULE_LICENSE("GPL");