USB: gadget: s3c2410_udc uses standard GPIO calls

Change the gpio code in the s3c2410_udc to use the
generic gpio calls instead of the s3c24xx specific
gpio functions.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 22 insertions, 12 deletions

diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index c7e255636803..9a2b8920532d 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -36,6 +36,7 @@
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/gpio.h>
 
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
@@ -51,7 +52,6 @@
 #include <mach/irqs.h>
 
 #include <mach/hardware.h>
-#include <mach/regs-gpio.h>
 
 #include <plat/regs-udc.h>
 #include <plat/udc.h>
@@ -1510,11 +1510,7 @@ static irqreturn_t s3c2410_udc_vbus_irq(int irq, void *_dev)
 
         dprintk(DEBUG_NORMAL, "%s()\n", __func__);
 
-        /* some cpus cannot read from an line configured to IRQ! */
-        s3c2410_gpio_cfgpin(udc_info->vbus_pin, S3C2410_GPIO_INPUT);
-        value = s3c2410_gpio_getpin(udc_info->vbus_pin);
-        s3c2410_gpio_cfgpin(udc_info->vbus_pin, S3C2410_GPIO_SFN2);
-
+        value = gpio_get_value(udc_info->vbus_pin) ? 1 : 0;
         if (udc_info->vbus_pin_inverted)
                 value = !value;
 
@@ -1802,7 +1798,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
         struct s3c2410_udc *udc = &memory;
         struct device *dev = &pdev->dev;
         int retval;
-        unsigned int irq;
+        int irq;
 
         dev_dbg(dev, "%s()\n", __func__);
 
@@ -1861,7 +1857,7 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
 
         /* irq setup after old hardware state is cleaned up */
         retval = request_irq(IRQ_USBD, s3c2410_udc_irq,
-                        IRQF_DISABLED, gadget_name, udc);
+                             IRQF_DISABLED, gadget_name, udc);
 
         if (retval != 0) {
                 dev_err(dev, "cannot get irq %i, err %d\n", IRQ_USBD, retval);
@@ -1872,17 +1868,28 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
         dev_dbg(dev, "got irq %i\n", IRQ_USBD);
 
         if (udc_info && udc_info->vbus_pin > 0) {
-                irq = s3c2410_gpio_getirq(udc_info->vbus_pin);
+                retval = gpio_request(udc_info->vbus_pin, "udc vbus");
+                if (retval < 0) {
+                        dev_err(dev, "cannot claim vbus pin\n");
+                        goto err_int;
+                }
+
+                irq = gpio_to_irq(udc_info->vbus_pin);
+                if (irq < 0) {
+                        dev_err(dev, "no irq for gpio vbus pin\n");
+                        goto err_gpio_claim;
+                }
+
                 retval = request_irq(irq, s3c2410_udc_vbus_irq,
                                      IRQF_DISABLED | IRQF_TRIGGER_RISING
                                      | IRQF_TRIGGER_FALLING | IRQF_SHARED,
                                      gadget_name, udc);
 
                 if (retval != 0) {
-                        dev_err(dev, "can't get vbus irq %i, err %d\n",
+                        dev_err(dev, "can't get vbus irq %d, err %d\n",
                                 irq, retval);
                         retval = -EBUSY;
-                        goto err_int;
+                        goto err_gpio_claim;
                 }
 
                 dev_dbg(dev, "got irq %i\n", irq);
@@ -1902,6 +1909,9 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
 
         return 0;
 
+err_gpio_claim:
+        if (udc_info && udc_info->vbus_pin > 0)
+                gpio_free(udc_info->vbus_pin);
 err_int:
         free_irq(IRQ_USBD, udc);
 err_map:
@@ -1927,7 +1937,7 @@ static int s3c2410_udc_remove(struct platform_device *pdev)
         debugfs_remove(udc->regs_info);
 
         if (udc_info && udc_info->vbus_pin > 0) {
-                irq = s3c2410_gpio_getirq(udc_info->vbus_pin);
+                irq = gpio_to_irq(udc_info->vbus_pin);
                 free_irq(irq, udc);
         }