ARM: s3c24xx: Switch to common GPIO controlled UDC pullup implementation

Currently all boards using the s3c2410_udc driver use a GPIO to control the
state of the pullup, as a result the same code is reimplemented in each board
This patch changes these boards to use the common implementation for GPIO
controlled pullup in the UDC driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

6 files changed, 7 insertions, 129 deletions

diff --git a/arch/arm/mach-s3c2410/mach-h1940.c b/arch/arm/mach-s3c2410/mach-h1940.c
index 1a81fe12ccd7..1e93f176c1de 100644
--- a/arch/arm/mach-s3c2410/mach-h1940.c
+++ b/arch/arm/mach-s3c2410/mach-h1940.c
@@ -162,29 +162,10 @@ struct gpio_chip h1940_latch_gpiochip = {
         .get                    = h1940_gpiolib_latch_get,
 };
 
-static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
-{
-        printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
-
-        switch (cmd)
-        {
-                case S3C2410_UDC_P_ENABLE :
-                        gpio_set_value(H1940_LATCH_USB_DP, 1);
-                        break;
-                case S3C2410_UDC_P_DISABLE :
-                        gpio_set_value(H1940_LATCH_USB_DP, 0);
-                        break;
-                case S3C2410_UDC_P_RESET :
-                        break;
-                default:
-                        break;
-        }
-}
-
 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
-        .udc_command            = h1940_udc_pullup,
         .vbus_pin               = S3C2410_GPG(5),
         .vbus_pin_inverted      = 1,
+        .pullup_pin             = H1940_LATCH_USB_DP,
 };
 
 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
@@ -475,9 +456,6 @@ static void __init h1940_init(void)
         gpio_direction_output(H1940_LATCH_LCD_P4, 0);
         gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 
-        gpio_request(H1940_LATCH_USB_DP, "USB pullup");
-        gpio_direction_output(H1940_LATCH_USB_DP, 0);
-
         gpio_request(H1940_LATCH_SD_POWER, "SD power");
         gpio_direction_output(H1940_LATCH_SD_POWER, 0);
 
diff --git a/arch/arm/mach-s3c2410/mach-n30.c b/arch/arm/mach-s3c2410/mach-n30.c
index 271b9aa6d40a..66f44440d5d3 100644
--- a/arch/arm/mach-s3c2410/mach-n30.c
+++ b/arch/arm/mach-s3c2410/mach-n30.c
@@ -84,26 +84,10 @@ static struct s3c2410_uartcfg n30_uartcfgs[] = {
         },
 };
 
-static void n30_udc_pullup(enum s3c2410_udc_cmd_e cmd)
-{
-        switch (cmd) {
-        case S3C2410_UDC_P_ENABLE :
-                gpio_set_value(S3C2410_GPB(3), 1);
-                break;
-        case S3C2410_UDC_P_DISABLE :
-                gpio_set_value(S3C2410_GPB(3), 0);
-                break;
-        case S3C2410_UDC_P_RESET :
-                break;
-        default:
-                break;
-        }
-}
-
 static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = {
-        .udc_command            = n30_udc_pullup,
         .vbus_pin               = S3C2410_GPG(1),
         .vbus_pin_inverted      = 0,
+        .pullup_pin             = S3C2410_GPB(3),
 };
 
 static struct gpio_keys_button n30_buttons[] = {
@@ -596,9 +580,6 @@ static void __init n30_init(void)
 
                 platform_add_devices(n35_devices, ARRAY_SIZE(n35_devices));
         }
-
-        WARN_ON(gpio_request(S3C2410_GPB(3), "udc pup"));
-        gpio_direction_output(S3C2410_GPB(3), 0);
 }
 
 MACHINE_START(N30, "Acer-N30")
diff --git a/arch/arm/mach-s3c2412/mach-smdk2413.c b/arch/arm/mach-s3c2412/mach-smdk2413.c
index 8e5758bdd666..834cfb61bcfe 100644
--- a/arch/arm/mach-s3c2412/mach-smdk2413.c
+++ b/arch/arm/mach-s3c2412/mach-smdk2413.c
@@ -78,28 +78,9 @@ static struct s3c2410_uartcfg smdk2413_uartcfgs[] __initdata = {
         }
 };
 
-static void smdk2413_udc_pullup(enum s3c2410_udc_cmd_e cmd)
-{
-        printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
-
-        switch (cmd)
-        {
-                case S3C2410_UDC_P_ENABLE :
-                        gpio_set_value(S3C2410_GPF(2), 1);
-                        break;
-                case S3C2410_UDC_P_DISABLE :
-                        gpio_set_value(S3C2410_GPF(2), 0);
-                        break;
-                case S3C2410_UDC_P_RESET :
-                        break;
-                default:
-                        break;
-        }
-}
-
 
 static struct s3c2410_udc_mach_info smdk2413_udc_cfg __initdata = {
-        .udc_command            = smdk2413_udc_pullup,
+        .pullup_pin = S3C2410_GPF(2),
 };
 
 
@@ -133,9 +114,6 @@ static void __init smdk2413_machine_init(void)
 {       /* Turn off suspend on both USB ports, and switch the
          * selectable USB port to USB device mode. */
 
-        WARN_ON(gpio_request(S3C2410_GPF(2), "udc pull"));
-        gpio_direction_output(S3C2410_GPF(2), 0);
-
         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
                               S3C2410_MISCCR_USBSUSPND0 |
                               S3C2410_MISCCR_USBSUSPND1, 0x0);
diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
index 9f2c14ec7181..37405d9abe32 100644
--- a/arch/arm/mach-s3c2440/mach-gta02.c
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
@@ -455,28 +455,10 @@ static struct s3c2410_platform_nand __initdata gta02_nand_info = {
 };
 
 
-static void gta02_udc_command(enum s3c2410_udc_cmd_e cmd)
-{
-        switch (cmd) {
-        case S3C2410_UDC_P_ENABLE:
-                pr_debug("%s S3C2410_UDC_P_ENABLE\n", __func__);
-                gpio_direction_output(GTA02_GPIO_USB_PULLUP, 1);
-                break;
-        case S3C2410_UDC_P_DISABLE:
-                pr_debug("%s S3C2410_UDC_P_DISABLE\n", __func__);
-                gpio_direction_output(GTA02_GPIO_USB_PULLUP, 0);
-                break;
-        case S3C2410_UDC_P_RESET:
-                pr_debug("%s S3C2410_UDC_P_RESET\n", __func__);
-                /* FIXME: Do something here. */
-        }
-}
-
 /* Get PMU to set USB current limit accordingly. */
-static struct s3c2410_udc_mach_info gta02_udc_cfg = {
+static struct s3c2410_udc_mach_info gta02_udc_cfg __initdata = {
         .vbus_draw      = gta02_udc_vbus_draw,
-        .udc_command    = gta02_udc_command,
-
+        .pullup_pin = GTA02_GPIO_USB_PULLUP,
 };
 
 /* USB */
diff --git a/arch/arm/mach-s3c2440/mach-mini2440.c b/arch/arm/mach-s3c2440/mach-mini2440.c
index f62bb4c793bd..d80f129bca94 100644
--- a/arch/arm/mach-s3c2440/mach-mini2440.c
+++ b/arch/arm/mach-s3c2440/mach-mini2440.c
@@ -97,26 +97,8 @@ static struct s3c2410_uartcfg mini2440_uartcfgs[] __initdata = {
 
 /* USB device UDC support */
 
-static void mini2440_udc_pullup(enum s3c2410_udc_cmd_e cmd)
-{
-        pr_debug("udc: pullup(%d)\n", cmd);
-
-        switch (cmd) {
-                case S3C2410_UDC_P_ENABLE :
-                        gpio_set_value(S3C2410_GPC(5), 1);
-                        break;
-                case S3C2410_UDC_P_DISABLE :
-                        gpio_set_value(S3C2410_GPC(5), 0);
-                        break;
-                case S3C2410_UDC_P_RESET :
-                        break;
-                default:
-                        break;
-        }
-}
-
 static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = {
-        .udc_command            = mini2440_udc_pullup,
+        .pullup_pin = S3C2410_GPC(5),
 };
 
 
@@ -644,10 +626,6 @@ static void __init mini2440_init(void)
         s3c2410_gpio_setpin(S3C2410_GPB(1), 0);
         s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPIO_INPUT);
 
-        /* Make sure the D+ pullup pin is output */
-        WARN_ON(gpio_request(S3C2410_GPC(5), "udc pup"));
-        gpio_direction_output(S3C2410_GPC(5), 0);
-
         /* mark the key as input, without pullups (there is one on the board) */
         for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) {
                 s3c_gpio_setpull(mini2440_buttons[i].gpio, S3C_GPIO_PULL_UP);
diff --git a/arch/arm/mach-s3c2440/mach-rx1950.c b/arch/arm/mach-s3c2440/mach-rx1950.c
index eab6ae50683c..86bbc233b31c 100644
--- a/arch/arm/mach-s3c2440/mach-rx1950.c
+++ b/arch/arm/mach-s3c2440/mach-rx1950.c
@@ -566,26 +566,10 @@ static struct s3c2410_platform_nand rx1950_nand_info = {
         .sets = rx1950_nand_sets,
 };
 
-static void rx1950_udc_pullup(enum s3c2410_udc_cmd_e cmd)
-{
-        switch (cmd) {
-        case S3C2410_UDC_P_ENABLE:
-                gpio_direction_output(S3C2410_GPJ(5), 1);
-                break;
-        case S3C2410_UDC_P_DISABLE:
-                gpio_direction_output(S3C2410_GPJ(5), 0);
-                break;
-        case S3C2410_UDC_P_RESET:
-                break;
-        default:
-                break;
-        }
-}
-
 static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
-        .udc_command = rx1950_udc_pullup,
         .vbus_pin = S3C2410_GPG(5),
         .vbus_pin_inverted = 1,
+        .pullup_pin = S3C2410_GPJ(5),
 };
 
 static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
@@ -750,9 +734,6 @@ static void __init rx1950_init_machine(void)
                                                 S3C2410_MISCCR_USBSUSPND0 |
                                                 S3C2410_MISCCR_USBSUSPND1, 0x0);
 
-        WARN_ON(gpio_request(S3C2410_GPJ(5), "UDC pullup"));
-        gpio_direction_output(S3C2410_GPJ(5), 0);
-
         /* mmc power is disabled by default */
         WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
         gpio_direction_output(S3C2410_GPJ(1), 0);