led: bcm6858: Drop duplicate OF "label" property parsing

[platform/kernel/u-boot.git] / drivers / led / led-uclass.c

diff --git a/drivers/led/led-uclass.c b/drivers/led/led-uclass.c
index ea5fbab..2f4aa18 100644 (file)
--- a/drivers/led/led-uclass.c
+++ b/drivers/led/led-uclass.c
@@ -1,14 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2015 Google, Inc
  * Written by Simon Glass <sjg@chromium.org>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
+#define LOG_CATEGORY UCLASS_LED
+
 #include <common.h>
 #include <dm.h>
 #include <errno.h>
 #include <led.h>
+#include <dm/device-internal.h>
 #include <dm/root.h>
 #include <dm/uclass-internal.h>
 
@@ -22,7 +24,7 @@ int led_get_by_label(const char *label, struct udevice **devp)
        if (ret)
                return ret;
        uclass_foreach_dev(dev, uc) {
-               struct led_uc_plat *uc_plat = dev_get_uclass_platdata(dev);
+               struct led_uc_plat *uc_plat = dev_get_uclass_plat(dev);
 
                /* Ignore the top-level LED node */
                if (uc_plat->label && !strcmp(label, uc_plat->label))
@@ -52,8 +54,61 @@ enum led_state_t led_get_state(struct udevice *dev)
        return ops->get_state(dev);
 }
 
+#ifdef CONFIG_LED_BLINK
+int led_set_period(struct udevice *dev, int period_ms)
+{
+       struct led_ops *ops = led_get_ops(dev);
+
+       if (!ops->set_period)
+               return -ENOSYS;
+
+       return ops->set_period(dev, period_ms);
+}
+#endif
+
+int led_default_state(void)
+{
+       struct udevice *dev;
+       struct uclass *uc;
+       const char *default_state;
+       int ret;
+
+       ret = uclass_get(UCLASS_LED, &uc);
+       if (ret)
+               return ret;
+       for (uclass_find_first_device(UCLASS_LED, &dev);
+            dev;
+            uclass_find_next_device(&dev)) {
+               default_state = dev_read_string(dev, "default-state");
+               if (!default_state)
+                       continue;
+               ret = device_probe(dev);
+               if (ret)
+                       return ret;
+               if (!strncmp(default_state, "on", 2))
+                       led_set_state(dev, LEDST_ON);
+               else if (!strncmp(default_state, "off", 3))
+                       led_set_state(dev, LEDST_OFF);
+               /* default-state = "keep" : device is only probed */
+       }
+
+       return ret;
+}
+
+static int led_post_bind(struct udevice *dev)
+{
+       struct led_uc_plat *uc_plat = dev_get_uclass_plat(dev);
+
+       uc_plat->label = dev_read_string(dev, "label");
+       if (!uc_plat->label)
+               uc_plat->label = ofnode_get_name(dev_ofnode(dev));
+
+       return 0;
+}
+
 UCLASS_DRIVER(led) = {
        .id             = UCLASS_LED,
        .name           = "led",
-       .per_device_platdata_auto_alloc_size = sizeof(struct led_uc_plat),
+       .per_device_plat_auto   = sizeof(struct led_uc_plat),
+       .post_bind      = led_post_bind,
 };