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path: root/drivers/leds/leds-syscon.c
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Diffstat (limited to 'drivers/leds/leds-syscon.c')
-rw-r--r--drivers/leds/leds-syscon.c71
1 files changed, 36 insertions, 35 deletions
diff --git a/drivers/leds/leds-syscon.c b/drivers/leds/leds-syscon.c
index 3afec79..6896e2d 100644
--- a/drivers/leds/leds-syscon.c
+++ b/drivers/leds/leds-syscon.c
@@ -18,10 +18,6 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
- *
- * This driver provides system reboot functionality for APM X-Gene SoC.
- * For system shutdown, this is board specify. If a board designer
- * implements GPIO shutdown, use the gpio-poweroff.c driver.
*/
#include <linux/io.h>
#include <linux/of_device.h>
@@ -70,39 +66,13 @@ static void syscon_led_set(struct led_classdev *led_cdev,
dev_err(sled->cdev.dev, "error updating LED status\n");
}
-static const struct of_device_id syscon_match[] = {
- { .compatible = "syscon", },
- {},
-};
-
-static int __init syscon_leds_init(void)
+static int __init syscon_leds_spawn(struct device_node *np,
+ struct device *dev,
+ struct regmap *map)
{
- const struct of_device_id *devid;
- struct device_node *np;
struct device_node *child;
- struct regmap *map;
- struct platform_device *pdev;
- struct device *dev;
int ret;
- np = of_find_matching_node_and_match(NULL, syscon_match,
- &devid);
- if (!np)
- return -ENODEV;
-
- map = syscon_node_to_regmap(np);
- if (IS_ERR(map))
- return PTR_ERR(map);
-
- /*
- * If the map is there, the device should be there, we allocate
- * memory on the syscon device's behalf here.
- */
- pdev = of_find_device_by_node(np);
- if (!pdev)
- return -ENODEV;
- dev = &pdev->dev;
-
for_each_available_child_of_node(np, child) {
struct syscon_led *sled;
const char *state;
@@ -150,7 +120,6 @@ static int __init syscon_leds_init(void)
if (ret < 0)
return ret;
}
-
}
sled->cdev.brightness_set = syscon_led_set;
@@ -160,7 +129,39 @@ static int __init syscon_leds_init(void)
dev_info(dev, "registered LED %s\n", sled->cdev.name);
}
+ return 0;
+}
+
+static int __init syscon_leds_init(void)
+{
+ struct device_node *np;
+
+ for_each_of_allnodes(np) {
+ struct platform_device *pdev;
+ struct regmap *map;
+ int ret;
+
+ if (!of_device_is_compatible(np, "syscon"))
+ continue;
+
+ map = syscon_node_to_regmap(np);
+ if (IS_ERR(map)) {
+ pr_err("error getting regmap for syscon LEDs\n");
+ continue;
+ }
+
+ /*
+ * If the map is there, the device should be there, we allocate
+ * memory on the syscon device's behalf here.
+ */
+ pdev = of_find_device_by_node(np);
+ if (!pdev)
+ return -ENODEV;
+ ret = syscon_leds_spawn(np, &pdev->dev, map);
+ if (ret)
+ dev_err(&pdev->dev, "could not spawn syscon LEDs\n");
+ }
- return 0;
+ return 0;
}
device_initcall(syscon_leds_init);