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authorBen Dooks <ben-linux@fluff.org>2008-11-24 11:45:03 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2009-01-07 10:00:02 -0800
commitea99ecfdc81266e61f4445c1830315a65eb8175a (patch)
treee286f8d68793f619b20942c0a2be2b4cc5ef717b
parentb40fc2a2563b03a7b925cd16d1657aa2c24fd9c0 (diff)
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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>
-rw-r--r--drivers/usb/gadget/s3c2410_udc.c34
1 files changed, 22 insertions, 12 deletions
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index c7e25563680..9a2b8920532 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);
}