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authorBen Dooks <ben-linux@fluff.org>2009-05-18 20:15:01 +0100
committerBen Dooks <ben-linux@fluff.org>2009-05-18 20:20:27 +0100
commit7a05a2cbd317cbd16e6d1689bb1e5e208eaaba6f (patch)
treea0de074b2864ec4d7c7fcb16fa532d730276b27d /arch
parent5233c178d4cedad0acd0eb0f24b2e09f7fafaa1c (diff)
[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>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-s3c2410/mach-bast.c3
-rw-r--r--arch/arm/mach-s3c2410/usb-simtec.c31
2 files changed, 25 insertions, 9 deletions
diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c
index 496463768de..31af898534c 100644
--- a/arch/arm/mach-s3c2410/mach-bast.c
+++ b/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();
}
diff --git a/arch/arm/mach-s3c2410/usb-simtec.c b/arch/arm/mach-s3c2410/usb-simtec.c
index dd45eb4a6f0..6cd9377ddb8 100644
--- a/arch/arm/mach-s3c2410/usb-simtec.c
+++ b/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;
}