ARM: mxs/tx28: convert to new leds-gpio registration helper

This allows to move the led definition to .init.rodata.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mxs/mach-tx28.c b/arch/arm/mach-mxs/mach-tx28.c
index 068e540..6766a12 100644
--- a/arch/arm/mach-mxs/mach-tx28.c
+++ b/arch/arm/mach-mxs/mach-tx28.c
@@ -109,7 +109,7 @@
 		(MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
 };
 
-static struct gpio_led tx28_stk5v3_leds[] = {
+static const struct gpio_led tx28_stk5v3_leds[] __initconst = {
 	{
 		.name = "GPIO-LED",
 		.default_trigger = "heartbeat",
@@ -151,8 +151,7 @@
 	/* spi via ssp will be added when available */
 	spi_register_board_info(tx28_spi_board_info,
 			ARRAY_SIZE(tx28_spi_board_info));
-	mxs_add_platform_device("leds-gpio", 0, NULL, 0,
-			&tx28_stk5v3_led_data, sizeof(tx28_stk5v3_led_data));
+	gpio_led_register_device(0, &tx28_stk5v3_led_data);
 	mx28_add_mxs_i2c(0);
 	i2c_register_board_info(0, tx28_stk5v3_i2c_boardinfo,
 			ARRAY_SIZE(tx28_stk5v3_i2c_boardinfo));