mfd: 88pm860x: Device tree support
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/leds/leds-88pm860x.c b/drivers/leds/leds-88pm860x.c
index 70232b1..b7e8cc0 100644
--- a/drivers/leds/leds-88pm860x.c
+++ b/drivers/leds/leds-88pm860x.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/leds.h>
@@ -123,6 +124,33 @@
schedule_work(&data->work);
}
+#ifdef CONFIG_OF
+static int pm860x_led_dt_init(struct platform_device *pdev,
+ struct pm860x_led *data)
+{
+ struct device_node *nproot = pdev->dev.parent->of_node, *np;
+ int iset = 0;
+ if (!nproot)
+ return -ENODEV;
+ nproot = of_find_node_by_name(nproot, "leds");
+ if (!nproot) {
+ dev_err(&pdev->dev, "failed to find leds node\n");
+ return -ENODEV;
+ }
+ for_each_child_of_node(nproot, np) {
+ if (!of_node_cmp(np->name, data->name)) {
+ of_property_read_u32(np, "marvell,88pm860x-iset",
+ &iset);
+ data->iset = PM8606_LED_CURRENT(iset);
+ break;
+ }
+ }
+ return 0;
+}
+#else
+#define pm860x_led_dt_init(x, y) (-1)
+#endif
+
static int pm860x_led_probe(struct platform_device *pdev)
{
struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
@@ -179,8 +207,9 @@
data->chip = chip;
data->i2c = (chip->id == CHIP_PM8606) ? chip->client : chip->companion;
data->port = pdev->id;
- if (pdata && pdata->iset)
- data->iset = pdata->iset;
+ if (pm860x_led_dt_init(pdev, data))
+ if (pdata)
+ data->iset = pdata->iset;
data->current_brightness = 0;
data->cdev.name = data->name;