ARM: 7900/1: sa1100: h3100: refactor IrDA GPIO handling

As GPIOs are going to move to platform device, there is no guarantee
that they will be available at init_machine time.

Request and free all GPIOs from IrDA startup/shutdown callbacks and not
at init_machine time.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-sa1100/h3100.c

@@ -89,6 +89,11 @@ static void __init h3100_map_io(void)
 /*
  * This turns the IRDA power on or off on the Compaq H3100
  */
+static struct gpio h3100_irda_gpio[] = {
+	{ H3100_GPIO_IR_ON,	GPIOF_OUT_INIT_LOW, "IrDA power" },
+	{ H3100_GPIO_IR_FSEL,	GPIOF_OUT_INIT_LOW, "IrDA fsel" },
+};
+
 static int h3100_irda_set_power(struct device *dev, unsigned int state)
 {
 	gpio_set_value(H3100_GPIO_IR_ON, state);
@@ -100,14 +105,24 @@ static void h3100_irda_set_speed(struct device *dev, unsigned int speed)
 	gpio_set_value(H3100_GPIO_IR_FSEL, !(speed < 4000000));
 }
 
+static int h3100_irda_startup(struct device *dev)
+{
+	return gpio_request_array(h3100_irda_gpio, sizeof(h3100_irda_gpio));
+}
+
+static void h3100_irda_shutdown(struct device *dev)
+{
+	return gpio_free_array(h3100_irda_gpio, sizeof(h3100_irda_gpio));
+}
+
 static struct irda_platform_data h3100_irda_data = {
 	.set_power	= h3100_irda_set_power,
 	.set_speed	= h3100_irda_set_speed,
+	.startup	= h3100_irda_startup,
+	.shutdown	= h3100_irda_shutdown,
 };
 
 static struct gpio_default_state h3100_default_gpio[] = {
-	{ H3100_GPIO_IR_ON,	GPIO_MODE_OUT0, "IrDA power" },
-	{ H3100_GPIO_IR_FSEL,	GPIO_MODE_OUT0, "IrDA fsel" },
 	{ H3XXX_GPIO_COM_DCD,	GPIO_MODE_IN,	"COM DCD" },
 	{ H3XXX_GPIO_COM_CTS,	GPIO_MODE_IN,	"COM CTS" },
 	{ H3XXX_GPIO_COM_RTS,	GPIO_MODE_OUT0,	"COM RTS" },