[ARM] S3C24XX: GPIO: Change usb-simtec.c to use gpiolib.

Make arch/arm/mach-s3c2410/usb-simtec.c use gpiolib to
manage gpio access.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>

arch/arm/mach-s3c2410/mach-bast.c

@@ -594,8 +594,6 @@ static void __init bast_map_io(void)
 	s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc));
 	s3c24xx_init_clocks(0);
 	s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs));
-
-	usb_simtec_init();
 }
 
 static void __init bast_init(void)
@@ -609,6 +607,7 @@ static void __init bast_init(void)
 	i2c_register_board_info(0, bast_i2c_devs,
 				ARRAY_SIZE(bast_i2c_devs));
 
+	usb_simtec_init();
 	nor_simtec_init();
 }
 

arch/arm/mach-s3c2410/usb-simtec.c

@@ -22,6 +22,7 @@
 #include <linux/timer.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/gpio.h>
 #include <linux/io.h>
 
 #include <asm/mach/arch.h>
@@ -30,7 +31,6 @@
 
 #include <mach/bast-map.h>
 #include <mach/bast-irq.h>
-#include <mach/regs-gpio.h>
 
 #include <mach/hardware.h>
 #include <asm/irq.h>
@@ -54,9 +54,9 @@ usb_simtec_powercontrol(int port, int to)
 	power_state[port] = to;
 
 	if (power_state[0] && power_state[1])
-		s3c2410_gpio_setpin(S3C2410_GPB(4), 0);
+		gpio_set_value(S3C2410_GPB(4), 0);
 	else
-		s3c2410_gpio_setpin(S3C2410_GPB(4), 1);
+		gpio_set_value(S3C2410_GPB(4), 1);
 }
 
 static irqreturn_t
@@ -64,7 +64,7 @@ usb_simtec_ocirq(int irq, void *pw)
 {
 	struct s3c2410_hcd_info *info = pw;
 
-	if (s3c2410_gpio_getpin(S3C2410_GPG(10)) == 0) {
+	if (gpio_get_value(S3C2410_GPG(10)) == 0) {
 		pr_debug("usb_simtec: over-current irq (oc detected)\n");
 		s3c2410_usb_report_oc(info, 3);
 	} else {
@@ -107,10 +107,27 @@ static struct s3c2410_hcd_info usb_simtec_info = {
 
 int usb_simtec_init(void)
 {
+	int ret;
+
 	printk("USB Power Control, (c) 2004 Simtec Electronics\n");
-	s3c_device_usb.dev.platform_data = &usb_simtec_info;
 
-	s3c2410_gpio_cfgpin(S3C2410_GPB(4), S3C2410_GPIO_OUTPUT);
-	s3c2410_gpio_setpin(S3C2410_GPB(4), 1);
+	ret = gpio_request(S3C2410_GPB(4), "USB power control");
+	if (ret < 0) {
+		pr_err("%s: failed to get GPB4\n", __func__);
+		return ret;
+	}
+
+	ret = gpio_request(S3C2410_GPG(10), "USB overcurrent");
+	if (ret < 0) {
+		pr_err("%s: failed to get GPG10\n", __func__);
+		gpio_free(S3C2410_GPB(4));
+		return ret;
+	}
+
+	/* turn power on */
+	gpio_direction_output(S3C2410_GPB(4), 1);
+	gpio_direction_input(S3C2410_GPG(10));
+
+	s3c_device_usb.dev.platform_data = &usb_simtec_info;
 	return 0;
 }