[PATCH v3 2/3] powerpc/powernv: Create LED platform device

[Vasant Hegde <hegdevasant@linux.vnet.ibm.com>]

This patch adds paltform devices for leds. Also export LED related
OPAL API's so that led driver can use these APIs.

Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Acked-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Tested-by: Stewart Smith <stewart@linux.vnet.ibm.com>
---
Since this is the split of origianal LED patch, I have retained Tested-by/Ack
from Stewart's Ack here.

-Vasant

 arch/powerpc/platforms/powernv/opal.c |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 2241565..b1951aa 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -784,7 +784,7 @@ static void opal_init_heartbeat(void)
 
 static int __init opal_init(void)
 {
-	struct device_node *np, *consoles;
+	struct device_node *np, *consoles, *led;
 	int rc;
 
 	opal_node = of_find_node_by_path("/ibm,opal");
@@ -813,6 +813,13 @@ static int __init opal_init(void)
 	/* Setup a heatbeat thread if requested by OPAL */
 	opal_init_heartbeat();
 
+	/* Create led platform devices */
+	led = of_find_node_by_path("/ibm,opal/led");
+	if (led) {
+		of_platform_device_create(led, "opal_led", NULL);
+		of_node_put(led);
+	}
+
 	/* Find all OPAL interrupts and request them */
 	opal_irq_init(opal_node);
 
@@ -970,3 +977,6 @@ EXPORT_SYMBOL_GPL(opal_rtc_write);
 EXPORT_SYMBOL_GPL(opal_tpo_read);
 EXPORT_SYMBOL_GPL(opal_tpo_write);
 EXPORT_SYMBOL_GPL(opal_i2c_request);
+/* Export these symbols for PowerNV LED class driver */
+EXPORT_SYMBOL_GPL(opal_leds_get_ind);
+EXPORT_SYMBOL_GPL(opal_leds_set_ind);