arm: ep93xx: use gpio_led_register_device

Use gpio_led_register_device to register the two leds
connected to the ep93xx.

Since this is a common feature for all ep93xx based boards,
create a new Kconfig option, EP93XX_SOC_COMMON, to select
the LEDS_GPIO_REGISTER feature.

The struct gpio_led and struct gpio_led_platform_data variables
have been changed to const struct because of:

commit 9517f925f2eb9ffca78b3f0f9389fc675bcb572c
	leds: make *struct gpio_led_platform_data.leds const

They have also been marked as __initconst because the helper
function gpio_led_register_device makes a deep copy of the
platform data to allow it to live in init memory:

commit 4440673a95e63ad888a41db596edaa0c55d3a332
	leds: provide helper to register "leds-gpio" devices

Signed-off-by: Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ryan Mallon <rmallon@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/mach-ep93xx/Kconfig b/arch/arm/mach-ep93xx/Kconfig
index 97a249395b5a..fe3c1fa5462b 100644
--- a/arch/arm/mach-ep93xx/Kconfig
+++ b/arch/arm/mach-ep93xx/Kconfig
@@ -2,6 +2,11 @@ if ARCH_EP93XX
 
 menu "Cirrus EP93xx Implementation Options"
 
+config EP93XX_SOC_COMMON
+        bool
+        default y
+        select LEDS_GPIO_REGISTER
+
 config CRUNCH
         bool "Support for MaverickCrunch"
         help