ARM: shmobile: lager: Add GPIO LEDs

The board has 3 LEDs connected to GPIOs. Add a led-gpio device to
support them.

Based on "ARM: shmobile: marzen: Add GPIO LEDs" by Laurent Pinchart.

Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

1 files changed, 27 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index 6114edd0a977..6a1ba38fae26 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -21,13 +21,37 @@
 #include <linux/interrupt.h>
 #include <linux/irqchip.h>
 #include <linux/kernel.h>
+#include <linux/leds.h>
 #include <linux/pinctrl/machine.h>
+#include <linux/platform_data/gpio-rcar.h>
 #include <linux/platform_device.h>
 #include <mach/common.h>
 #include <mach/r8a7790.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
+/* LEDS */
+static struct gpio_led lager_leds[] = {
+        {
+                .name           = "led8",
+                .gpio           = RCAR_GP_PIN(5, 17),
+                .default_state  = LEDS_GPIO_DEFSTATE_ON,
+        }, {
+                .name           = "led7",
+                .gpio           = RCAR_GP_PIN(4, 23),
+                .default_state  = LEDS_GPIO_DEFSTATE_ON,
+        }, {
+                .name           = "led6",
+                .gpio           = RCAR_GP_PIN(4, 22),
+                .default_state  = LEDS_GPIO_DEFSTATE_ON,
+        },
+};
+
+static struct gpio_led_platform_data lager_leds_pdata = {
+        .leds           = lager_leds,
+        .num_leds       = ARRAY_SIZE(lager_leds),
+};
+
 static const struct pinctrl_map lager_pinctrl_map[] = {
         /* SCIF0 (CN19: DEBUG SERIAL0) */
         PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.6", "pfc-r8a7790",
@@ -46,6 +70,9 @@ static void __init lager_add_standard_devices(void)
         r8a7790_pinmux_init();
 
         r8a7790_add_standard_devices();
+        platform_device_register_data(&platform_bus, "leds-gpio", -1,
+                                      &lager_leds_pdata,
+                                      sizeof(lager_leds_pdata));
 }
 
 static const char *lager_boards_compat_dt[] __initdata = {