ARM: shmobile: armadillo: Set backlight enable GPIO

The Armadillo 800 EVA panel module has a backlight enable signal
connected to GPIO 61. Instead of requesting the GPIO in board code and
setting it to a high level unconditionally, pass the GPIO number to the
PWM backlight driver as the backlight enable GPIO.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/mach-shmobile/board-armadillo800eva.c

@@ -423,7 +423,7 @@ static struct platform_pwm_backlight_data pwm_backlight_data = {
 	.max_brightness = 255,
 	.dft_brightness = 255,
 	.pwm_period_ns = 33333, /* 30kHz */
-	.enable_gpio = -1,
+	.enable_gpio = 61,
 };
 
 static struct platform_device pwm_backlight_device = {
@@ -1203,9 +1203,6 @@ static void __init eva_init(void)
 	r8a7740_pinmux_init();
 	r8a7740_meram_workaround();
 
-	/* LCDC0 */
-	gpio_request_one(61, GPIOF_OUT_INIT_HIGH, NULL); /* LCDDON */
-
 	/* GETHER */
 	gpio_request_one(18, GPIOF_OUT_INIT_HIGH, NULL); /* PHY_RST */