Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c3842e4f authored by Simon Horman's avatar Simon Horman
Browse files

ARM: shmobile: lager: support GPIO switches 



The lager board has pins 1 - 4 of SW2 wired up to GPIO pins.
This patch allows access to those pins as KEYS 1 - 4 using
gpio-keys.

Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent 1034f4ee

arch/arm/mach-shmobile/board-lager.c

+23 −1
Original line number Diff line number Diff line
@@ -18,6 +18,9 @@ 
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */



#include <linux/gpio.h>

#include <linux/gpio_keys.h>

#include <linux/input.h>

#include <linux/interrupt.h>

#include <linux/irqchip.h>

#include <linux/kernel.h>
@@ -47,11 +50,27 @@ static struct gpio_led lager_leds[] = { 
	},

};



static struct gpio_led_platform_data lager_leds_pdata = {

static __initdata struct gpio_led_platform_data lager_leds_pdata = {

	.leds		= lager_leds,

	.num_leds	= ARRAY_SIZE(lager_leds),

};



/* GPIO KEY */

#define GPIO_KEY(c, g, d, ...) \

	{ .code = c, .gpio = g, .desc = d, .active_low = 1 }



static __initdata struct gpio_keys_button gpio_buttons[] = {

	GPIO_KEY(KEY_4,		RCAR_GP_PIN(1, 28),	"SW2-pin4"),

	GPIO_KEY(KEY_3,		RCAR_GP_PIN(1, 26),	"SW2-pin3"),

	GPIO_KEY(KEY_2,		RCAR_GP_PIN(1, 24),	"SW2-pin2"),

	GPIO_KEY(KEY_1,		RCAR_GP_PIN(1, 14),	"SW2-pin1"),

};



static __initdata struct gpio_keys_platform_data lager_keys_pdata = {

	.buttons	= gpio_buttons,

	.nbuttons	= ARRAY_SIZE(gpio_buttons),

};



static const struct pinctrl_map lager_pinctrl_map[] = {

	/* SCIF0 (CN19: DEBUG SERIAL0) */

	PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.6", "pfc-r8a7790",
@@ -73,6 +92,9 @@ static void __init lager_add_standard_devices(void) 
	platform_device_register_data(&platform_bus, "leds-gpio", -1,

				      &lager_leds_pdata,

				      sizeof(lager_leds_pdata));

	platform_device_register_data(&platform_bus, "gpio-keys", -1,

				      &lager_keys_pdata,

				      sizeof(lager_keys_pdata));

}



static const char *lager_boards_compat_dt[] __initdata = {