powerpc/4xx: Have Warp take advantage of GPIO LEDs default-state = keep

The GPIO LEDS driver now has a default state of "keep".  Update the Warp DTS
and platform file to take advantage of this new state.  This removes the
hardcoding of the two LEDs on the Warp.
Signed-off-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

arch/powerpc/boot/dts/warp.dts

@@ -261,10 +261,11 @@
 				compatible = "gpio-leds";
 				green {
 					gpios = <&GPIO1 0 0>;
-					default-state = "on";
+					default-state = "keep";
 				};
 				red {
 					gpios = <&GPIO1 1 0>;
+					default-state = "keep";
 				};
 			};
 

arch/powerpc/platforms/44x/warp.c

@@ -64,8 +64,6 @@ define_machine(warp) {
 };
 
 
-static u32 post_info;
-
 static int __init warp_post_info(void)
 {
 	struct device_node *np;
@@ -87,10 +85,9 @@ static int __init warp_post_info(void)
 
 	iounmap(fpga);
 
-	if (post1 || post2) {
+	if (post1 || post2)
 		printk(KERN_INFO "Warp POST %08x %08x\n", post1, post2);
-		post_info = 1;
-	} else
+	else
 		printk(KERN_INFO "Warp POST OK\n");
 
 	return 0;
@@ -179,15 +176,10 @@ static int pika_setup_leds(void)
 	}
 
 	for_each_child_of_node(np, child)
-		if (strcmp(child->name, "green") == 0) {
+		if (strcmp(child->name, "green") == 0)
 			green_led = of_get_gpio(child, 0);
-			/* Turn back on the green LED */
-			gpio_set_value(green_led, 1);
-		} else if (strcmp(child->name, "red") == 0) {
+		else if (strcmp(child->name, "red") == 0)
 			red_led = of_get_gpio(child, 0);
-			/* Set based on post */
-			gpio_set_value(red_led, post_info);
-		}
 
 	of_node_put(np);