[ARM] Orion: LED support for HP mv2120

The HP mv2120 has several LEDs that are controlled through gpio.
Export the health LED, the red SATA LEDs as well as two gpios
that control the brightness of _all_ LEDs to userland.  The
Ethernet and power LEDs can't be controlled through gpio and the
blue SATA LEDs are handled via the SATA driver.

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
diff --git a/arch/arm/mach-orion5x/mv2120-setup.c b/arch/arm/mach-orion5x/mv2120-setup.c
index f1dcad3..55f3b0f 100644
--- a/arch/arm/mach-orion5x/mv2120-setup.c
+++ b/arch/arm/mach-orion5x/mv2120-setup.c
@@ -137,6 +137,50 @@
 	.irq	= 0,
 };
 
+static struct gpio_led mv2120_led_pins[] = {
+	{
+		.name			= "mv2120:blue:health",
+		.gpio			= 0,
+	},
+	{
+		.name			= "mv2120:red:health",
+		.gpio			= 1,
+	},
+	{
+		.name			= "mv2120:led:bright",
+		.gpio			= 4,
+		.default_trigger	= "default-on",
+	},
+	{
+		.name			= "mv2120:led:dimmed",
+		.gpio			= 5,
+	},
+	{
+		.name			= "mv2120:red:sata0",
+		.gpio			= 8,
+		.active_low		= 1,
+	},
+	{
+		.name			= "mv2120:red:sata1",
+		.gpio			= 9,
+		.active_low		= 1,
+	},
+
+};
+
+static struct gpio_led_platform_data mv2120_led_data = {
+	.leds		= mv2120_led_pins,
+	.num_leds	= ARRAY_SIZE(mv2120_led_pins),
+};
+
+static struct platform_device mv2120_leds = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &mv2120_led_data,
+	}
+};
+
 static void mv2120_power_off(void)
 {
 	pr_info("%s: triggering power-off...\n", __func__);
@@ -172,6 +216,7 @@
 			gpio_free(MV2120_GPIO_RTC_IRQ);
 	}
 	i2c_register_board_info(0, &mv2120_i2c_rtc, 1);
+	platform_device_register(&mv2120_leds);
 
 	/* register mv2120 specific power-off method */
 	if (gpio_request(MV2120_GPIO_POWER_OFF, "POWEROFF") != 0 ||