Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d2b11a468a49716debd96532552a72b6078f1cf5
Commit:     d2b11a468a49716debd96532552a72b6078f1cf5
Parent:     2296fb7ff04531dd8d50394da24f49302ecf103b
Author:     Michael Hennerich <[EMAIL PROTECTED]>
AuthorDate: Tue Aug 28 16:47:46 2007 +0800
Committer:  Bryan Wu <[EMAIL PROTECTED]>
CommitDate: Tue Aug 28 16:47:46 2007 +0800

    Blackfin arch: Merge GPIO/Peripheral Resource Allocation back into a single 
file
    
    Signed-off-by: Michael Hennerich <[EMAIL PROTECTED]>
    Signed-off-by: Bryan Wu <[EMAIL PROTECTED]>
---
 arch/blackfin/kernel/Makefile     |    4 +-
 arch/blackfin/kernel/bfin_gpio.c  |  225 ++++++++++++++++++++-
 arch/blackfin/mach-bf548/Makefile |    2 +-
 arch/blackfin/mach-bf548/gpio.c   |  392 -------------------------------------
 4 files changed, 216 insertions(+), 407 deletions(-)

diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile
index ae0a220..243883e 100644
--- a/arch/blackfin/kernel/Makefile
+++ b/arch/blackfin/kernel/Makefile
@@ -7,10 +7,8 @@ extra-y := init_task.o vmlinux.lds
 obj-y := \
        entry.o process.o bfin_ksyms.o ptrace.o setup.o signal.o \
        sys_bfin.o time.o traps.o irqchip.o dma-mapping.o flat.o \
-       fixed_code.o cplbinit.o cacheinit.o reboot.o
+       fixed_code.o cplbinit.o cacheinit.o reboot.o bfin_gpio.o
 
-obj-$(CONFIG_BF53x)                 += bfin_gpio.o
-obj-$(CONFIG_BF561)                 += bfin_gpio.o
 obj-$(CONFIG_MODULES)                += module.o
 obj-$(CONFIG_BFIN_DMA_5XX)           += bfin_dma_5xx.o
 obj-$(CONFIG_DUAL_CORE_TEST_MODULE)  += dualcore_test.o
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 0d1e87b..78438d8 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -7,7 +7,7 @@
  * Description:  GPIO Abstraction Layer
  *
  * Modified:
- *               Copyright 2006 Analog Devices Inc.
+ *               Copyright 2007 Analog Devices Inc.
  *
  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
  *
@@ -28,9 +28,9 @@
  */
 
 /*
-*  Number     BF537/6/4    BF561    BF533/2/1
+*  Number     BF537/6/4    BF561    BF533/2/1     BF549/8/4/2
 *
-*  GPIO_0       PF0         PF0        PF0
+*  GPIO_0       PF0         PF0        PF0        PA0...PJ13
 *  GPIO_1       PF1         PF1        PF1
 *  GPIO_2       PF2         PF2        PF2
 *  GPIO_3       PF3         PF3        PF3
@@ -117,6 +117,21 @@ static struct gpio_port_t 
*gpio_bankb[gpio_bank(MAX_BLACKFIN_GPIOS)] = {
 };
 #endif
 
+#ifdef BF548_FAMILY
+static struct gpio_port_t *gpio_array[gpio_bank(MAX_BLACKFIN_GPIOS)] = {
+       (struct gpio_port_t *)PORTA_FER,
+       (struct gpio_port_t *)PORTB_FER,
+       (struct gpio_port_t *)PORTC_FER,
+       (struct gpio_port_t *)PORTD_FER,
+       (struct gpio_port_t *)PORTE_FER,
+       (struct gpio_port_t *)PORTF_FER,
+       (struct gpio_port_t *)PORTG_FER,
+       (struct gpio_port_t *)PORTH_FER,
+       (struct gpio_port_t *)PORTI_FER,
+       (struct gpio_port_t *)PORTJ_FER,
+};
+#endif
+
 static unsigned short reserved_gpio_map[gpio_bank(MAX_BLACKFIN_GPIOS)];
 static unsigned short reserved_peri_map[gpio_bank(MAX_BLACKFIN_GPIOS + 16)];
 
@@ -147,12 +162,24 @@ static unsigned int 
sic_iwr_irqs[gpio_bank(MAX_BLACKFIN_GPIOS)] = {IRQ_PROG0_INT
 
 #endif /* CONFIG_PM */
 
+#if defined(BF548_FAMILY)
+inline int check_gpio(unsigned short gpio)
+{
+       if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15
+           || gpio == GPIO_PH14 || gpio == GPIO_PH15
+           || gpio == GPIO_PJ14 || gpio == GPIO_PJ15
+           || gpio > MAX_BLACKFIN_GPIOS)
+               return -EINVAL;
+       return 0;
+}
+#else
 inline int check_gpio(unsigned short gpio)
 {
        if (gpio >= MAX_BLACKFIN_GPIOS)
                return -EINVAL;
        return 0;
 }
+#endif
 
 static void set_label(unsigned short ident, const char *label)
 {
@@ -185,19 +212,27 @@ static int cmp_label(unsigned short ident, const char 
*label)
 static void port_setup(unsigned short gpio, unsigned short usage)
 {
        if (!check_gpio(gpio)) {
-               if (usage == GPIO_USAGE) {
+               if (usage == GPIO_USAGE)
                        *port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio);
-               } else
+               else
                        *port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
                SSYNC();
        }
 }
+#elif defined(BF548_FAMILY)
+static void port_setup(unsigned short gpio, unsigned short usage)
+{
+       if (usage == GPIO_USAGE)
+               gpio_array[gpio_bank(gpio)]->port_fer &= ~gpio_bit(gpio);
+       else
+               gpio_array[gpio_bank(gpio)]->port_fer |= gpio_bit(gpio);
+       SSYNC();
+}
 #else
 # define port_setup(...)  do { } while (0)
 #endif
 
 #ifdef BF537_FAMILY
-
 static struct {
        unsigned short res;
        unsigned short offset;
@@ -268,11 +303,32 @@ static void portmux_setup(unsigned short per, unsigned 
short function)
                }
        }
 }
+#elif defined(BF548_FAMILY)
+inline void portmux_setup(unsigned short portno, unsigned short function)
+{
+       u32 pmux;
+
+       pmux = gpio_array[gpio_bank(portno)]->port_mux;
+
+       pmux &= ~(0x3 << (2 * gpio_sub_n(portno)));
+       pmux |= (function & 0x3) << (2 * gpio_sub_n(portno));
+
+       gpio_array[gpio_bank(portno)]->port_mux = pmux;
+}
+
+inline u16 get_portmux(unsigned short portno)
+{
+       u32 pmux;
 
+       pmux = gpio_array[gpio_bank(portno)]->port_mux;
+
+       return (pmux >> (2 * gpio_sub_n(portno)) & 0x3);
+}
 #else
 # define portmux_setup(...)  do { } while (0)
 #endif
 
+#ifndef BF548_FAMILY
 static void default_gpio(unsigned short gpio)
 {
        unsigned short bank, bitmask;
@@ -289,6 +345,9 @@ static void default_gpio(unsigned short gpio)
        gpio_bankb[bank]->both &= ~bitmask;
        gpio_bankb[bank]->edge &= ~bitmask;
 }
+#else
+# define default_gpio(...)  do { } while (0)
+#endif
 
 static int __init bfin_gpio_init(void)
 {
@@ -307,6 +366,7 @@ static int __init bfin_gpio_init(void)
 arch_initcall(bfin_gpio_init);
 
 
+#ifndef BF548_FAMILY
 /***********************************************************
 *
 * FUNCTIONS: Blackfin General Purpose Ports Access Functions
@@ -658,9 +718,95 @@ void gpio_pm_restore(void)
 }
 
 #endif
+#endif /* BF548_FAMILY */
 
+/***********************************************************
+*
+* FUNCTIONS:   Blackfin Peripheral Resource Allocation
+*              and PortMux Setup
+*
+* INPUTS/OUTPUTS:
+* per  Peripheral Identifier
+* label        String
+*
+* DESCRIPTION: Blackfin Peripheral Resource Allocation and Setup API
+*
+* CAUTION:
+*************************************************************
+* MODIFICATION HISTORY :
+**************************************************************/
+
+#ifdef BF548_FAMILY
+int peripheral_request(unsigned short per, const char *label)
+{
+       unsigned long flags;
+       unsigned short ident = P_IDENT(per);
+
+       /*
+        * Don't cares are pins with only one dedicated function
+        */
 
+       if (per & P_DONTCARE)
+               return 0;
+
+       if (!(per & P_DEFINED))
+               return -ENODEV;
+
+       if (check_gpio(ident) < 0)
+               return -EINVAL;
 
+       local_irq_save(flags);
+
+       if (unlikely(reserved_gpio_map[gpio_bank(ident)] & gpio_bit(ident))) {
+               printk(KERN_ERR
+                   "%s: Peripheral %d is already reserved as GPIO by %s !\n",
+                      __FUNCTION__, ident, get_label(ident));
+               dump_stack();
+               local_irq_restore(flags);
+               return -EBUSY;
+       }
+
+       if (unlikely(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident))) {
+
+               u16 funct = get_portmux(ident);
+
+       /*
+        * Pin functions like AMC address strobes my
+        * be requested and used by several drivers
+        */
+
+               if (!((per & P_MAYSHARE) && (funct == P_FUNCT2MUX(per)))) {
+
+               /*
+                * Allow that the identical pin function can
+                * be requested from the same driver twice
+                */
+
+               if (cmp_label(ident, label) == 0)
+                       goto anyway;
+
+                       printk(KERN_ERR
+                              "%s: Peripheral %d function %d is already 
reserved by %s !\n",
+                              __FUNCTION__, ident, P_FUNCT2MUX(per), 
get_label(ident));
+                       dump_stack();
+                       local_irq_restore(flags);
+                       return -EBUSY;
+               }
+       }
+
+anyway:
+       reserved_peri_map[gpio_bank(ident)] |= gpio_bit(ident);
+
+       portmux_setup(ident, P_FUNCT2MUX(per));
+       port_setup(ident, PERIPHERAL_USAGE);
+
+       local_irq_restore(flags);
+       set_label(ident, label);
+
+       return 0;
+}
+EXPORT_SYMBOL(peripheral_request);
+#else
 
 int peripheral_request(unsigned short per, const char *label)
 {
@@ -722,8 +868,6 @@ int peripheral_request(unsigned short per, const char 
*label)
        }
 
 anyway:
-
-
        portmux_setup(per, P_FUNCT2MUX(per));
 
        port_setup(ident, PERIPHERAL_USAGE);
@@ -735,6 +879,7 @@ anyway:
        return 0;
 }
 EXPORT_SYMBOL(peripheral_request);
+#endif
 
 int peripheral_request_list(unsigned short per[], const char *label)
 {
@@ -805,8 +950,8 @@ EXPORT_SYMBOL(peripheral_free_list);
 * FUNCTIONS: Blackfin GPIO Driver
 *
 * INPUTS/OUTPUTS:
-* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
-*
+* gpio PIO Number between 0 and MAX_BLACKFIN_GPIOS
+* label        String
 *
 * DESCRIPTION: Blackfin GPIO Driver API
 *
@@ -825,16 +970,27 @@ int gpio_request(unsigned short gpio, const char *label)
        local_irq_save(flags);
 
        if (unlikely(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
-               printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved!\n", 
gpio);
+               printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved by %s 
!\n",
+                        gpio, get_label(gpio));
+               dump_stack();
+               local_irq_restore(flags);
+               return -EBUSY;
+       }
+       if (unlikely(reserved_peri_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
+               printk(KERN_ERR
+                      "bfin-gpio: GPIO %d is already reserved as Peripheral by 
%s !\n",
+                      gpio, get_label(gpio));
                dump_stack();
                local_irq_restore(flags);
                return -EBUSY;
        }
+
        reserved_gpio_map[gpio_bank(gpio)] |= gpio_bit(gpio);
 
        local_irq_restore(flags);
 
        port_setup(gpio, GPIO_USAGE);
+       set_label(gpio, label);
 
        return 0;
 }
@@ -864,6 +1020,51 @@ void gpio_free(unsigned short gpio)
 }
 EXPORT_SYMBOL(gpio_free);
 
+#ifdef BF548_FAMILY
+void gpio_direction_input(unsigned short gpio)
+{
+       unsigned long flags;
+
+       BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+
+       local_irq_save(flags);
+       gpio_array[gpio_bank(gpio)]->port_dir_clear = gpio_bit(gpio);
+       gpio_array[gpio_bank(gpio)]->port_inen |= gpio_bit(gpio);
+       local_irq_restore(flags);
+}
+EXPORT_SYMBOL(gpio_direction_input);
+
+void gpio_direction_output(unsigned short gpio)
+{
+       unsigned long flags;
+
+       BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+
+       local_irq_save(flags);
+       gpio_array[gpio_bank(gpio)]->port_inen &= ~gpio_bit(gpio);
+       gpio_array[gpio_bank(gpio)]->port_dir_set = gpio_bit(gpio);
+       local_irq_restore(flags);
+}
+EXPORT_SYMBOL(gpio_direction_output);
+
+void gpio_set_value(unsigned short gpio, unsigned short arg)
+{
+       if (arg)
+               gpio_array[gpio_bank(gpio)]->port_set = gpio_bit(gpio);
+       else
+               gpio_array[gpio_bank(gpio)]->port_clear = gpio_bit(gpio);
+
+}
+EXPORT_SYMBOL(gpio_set_value);
+
+unsigned short gpio_get_value(unsigned short gpio)
+{
+       return (1 & (gpio_array[gpio_bank(gpio)]->port_data >> 
gpio_sub_n(gpio)));
+}
+EXPORT_SYMBOL(gpio_get_value);
+
+#else
+
 void gpio_direction_input(unsigned short gpio)
 {
        unsigned long flags;
@@ -908,3 +1109,5 @@ void bfin_gpio_reset_spi0_ssel1(void)
        gpio_bankb[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
        udelay(1);
 }
+
+#endif /*BF548_FAMILY */
diff --git a/arch/blackfin/mach-bf548/Makefile 
b/arch/blackfin/mach-bf548/Makefile
index 060ad78..7e7c9c8 100644
--- a/arch/blackfin/mach-bf548/Makefile
+++ b/arch/blackfin/mach-bf548/Makefile
@@ -4,6 +4,6 @@
 
 extra-y := head.o
 
-obj-y := ints-priority.o dma.o gpio.o
+obj-y := ints-priority.o dma.o
 
 obj-$(CONFIG_CPU_FREQ)   += cpu.o
diff --git a/arch/blackfin/mach-bf548/gpio.c b/arch/blackfin/mach-bf548/gpio.c
deleted file mode 100644
index 390dd8c..0000000
--- a/arch/blackfin/mach-bf548/gpio.c
+++ /dev/null
@@ -1,392 +0,0 @@
-/*
- * File:         arch/blackfin/mach-bf548/gpio.c
- * Based on:
- * Author:       Michael Hennerich ([EMAIL PROTECTED])
- *
- * Created:
- * Description:  GPIO Abstraction Layer
- *
- * Modified:
- *               Copyright 2007 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include <linux/module.h>
-#include <linux/err.h>
-#include <asm/blackfin.h>
-#include <asm/gpio.h>
-#include <asm/portmux.h>
-#include <linux/irq.h>
-
-static struct gpio_port_t *gpio_array[gpio_bank(MAX_BLACKFIN_GPIOS)] = {
-       (struct gpio_port_t *)PORTA_FER,
-       (struct gpio_port_t *)PORTB_FER,
-       (struct gpio_port_t *)PORTC_FER,
-       (struct gpio_port_t *)PORTD_FER,
-       (struct gpio_port_t *)PORTE_FER,
-       (struct gpio_port_t *)PORTF_FER,
-       (struct gpio_port_t *)PORTG_FER,
-       (struct gpio_port_t *)PORTH_FER,
-       (struct gpio_port_t *)PORTI_FER,
-       (struct gpio_port_t *)PORTJ_FER,
-};
-
-static unsigned short reserved_gpio_map[gpio_bank(MAX_BLACKFIN_GPIOS)];
-static unsigned short reserved_peri_map[gpio_bank(MAX_BLACKFIN_GPIOS)];
-
-#define MAX_RESOURCES          256
-#define RESOURCE_LABEL_SIZE    16
-
-struct str_ident {
-       char name[RESOURCE_LABEL_SIZE];
-} *str_ident;
-
-inline int check_gpio(unsigned short gpio)
-{
-       if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15
-           || gpio == GPIO_PH14 || gpio == GPIO_PH15
-           || gpio == GPIO_PJ14 || gpio == GPIO_PJ15
-           || gpio > MAX_BLACKFIN_GPIOS)
-               return -EINVAL;
-       return 0;
-}
-
-inline void portmux_setup(unsigned short portno, unsigned short function)
-{
-       u32 pmux;
-
-       pmux = gpio_array[gpio_bank(portno)]->port_mux;
-
-       pmux &= ~(0x3 << (2 * gpio_sub_n(portno)));
-       pmux |= (function & 0x3) << (2 * gpio_sub_n(portno));
-
-       gpio_array[gpio_bank(portno)]->port_mux = pmux;
-}
-
-inline u16 get_portmux(unsigned short portno)
-{
-       u32 pmux;
-
-       pmux = gpio_array[gpio_bank(portno)]->port_mux;
-
-       return (pmux >> (2 * gpio_sub_n(portno)) & 0x3);
-}
-
-static void port_setup(unsigned short gpio, unsigned short usage)
-{
-       if (usage == GPIO_USAGE) {
-               gpio_array[gpio_bank(gpio)]->port_fer &= ~gpio_bit(gpio);
-       } else
-               gpio_array[gpio_bank(gpio)]->port_fer |= gpio_bit(gpio);
-       SSYNC();
-}
-
-static int __init bfin_gpio_init(void)
-{
-
-       str_ident = kcalloc(MAX_RESOURCES,
-                                sizeof(struct str_ident), GFP_KERNEL);
-       if (str_ident == NULL)
-               return -ENOMEM;
-
-       memset(str_ident, 0, MAX_RESOURCES * sizeof(struct str_ident));
-
-       printk(KERN_INFO "Blackfin GPIO Controller\n");
-
-       return 0;
-}
-
-arch_initcall(bfin_gpio_init);
-
-static void set_label(unsigned short ident, const char *label)
-{
-
-       if (label && str_ident) {
-               strncpy(str_ident[ident].name, label,
-                        RESOURCE_LABEL_SIZE);
-               str_ident[ident].name[RESOURCE_LABEL_SIZE - 1] = 0;
-       }
-}
-
-static char *get_label(unsigned short ident)
-{
-       if (!str_ident)
-               return "UNKNOWN";
-
-       return (*str_ident[ident].name ? str_ident[ident].name : "UNKNOWN");
-}
-
-static int cmp_label(unsigned short ident, const char *label)
-{
-       if (label && str_ident)
-               return strncmp(str_ident[ident].name,
-                                label, strlen(label));
-       else
-               return -EINVAL;
-}
-
-int peripheral_request(unsigned short per, const char *label)
-{
-       unsigned long flags;
-       unsigned short ident = P_IDENT(per);
-
-       /*
-        * Don't cares are pins with only one dedicated function
-        */
-
-       if (per & P_DONTCARE)
-               return 0;
-
-       if (!(per & P_DEFINED))
-               return -ENODEV;
-
-       if (check_gpio(ident) < 0)
-               return -EINVAL;
-
-       local_irq_save(flags);
-
-       if (unlikely(reserved_gpio_map[gpio_bank(ident)] & gpio_bit(ident))) {
-               printk(KERN_ERR
-                      "%s: Peripheral %d is already reserved as GPIO by %s 
!\n",
-                      __FUNCTION__, ident, get_label(ident));
-               dump_stack();
-               local_irq_restore(flags);
-               return -EBUSY;
-       }
-
-       if (unlikely(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident))) {
-
-               u16 funct = get_portmux(ident);
-
-       /*
-        * Pin functions like AMC address strobes my
-        * be requested and used by several drivers
-        */
-
-               if (!((per & P_MAYSHARE) && (funct == P_FUNCT2MUX(per)))) {
-
-               /*
-                * Allow that the identical pin function can
-                * be requested from the same driver twice
-                */
-
-               if (cmp_label(ident, label) == 0)
-                       goto anyway;
-
-                       printk(KERN_ERR
-                              "%s: Peripheral %d function %d is already 
reserved by %s !\n",
-                              __FUNCTION__, ident, P_FUNCT2MUX(per), 
get_label(ident));
-                       dump_stack();
-                       local_irq_restore(flags);
-                       return -EBUSY;
-               }
-       }
-
-anyway:
-       reserved_peri_map[gpio_bank(ident)] |= gpio_bit(ident);
-
-       portmux_setup(ident, P_FUNCT2MUX(per));
-       port_setup(ident, PERIPHERAL_USAGE);
-
-       local_irq_restore(flags);
-       set_label(ident, label);
-
-       return 0;
-}
-EXPORT_SYMBOL(peripheral_request);
-
-int peripheral_request_list(unsigned short per[], const char *label)
-{
-       u16 cnt;
-       int ret;
-
-       for (cnt = 0; per[cnt] != 0; cnt++) {
-
-               ret = peripheral_request(per[cnt], label);
-
-               if (ret < 0) {
-                       for ( ; cnt > 0; cnt--) {
-                               peripheral_free(per[cnt - 1]);
-                       }
-               return ret;
-               }
-       }
-
-
-       return 0;
-}
-EXPORT_SYMBOL(peripheral_request_list);
-
-void peripheral_free(unsigned short per)
-{
-       unsigned long flags;
-       unsigned short ident = P_IDENT(per);
-
-       if (per & P_DONTCARE)
-               return;
-
-       if (!(per & P_DEFINED))
-               return;
-
-       if (check_gpio(ident) < 0)
-               return;
-
-       local_irq_save(flags);
-
-       if (unlikely(!(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident)))) 
{
-               local_irq_restore(flags);
-               return;
-       }
-
-       if (!(per & P_MAYSHARE)) {
-               port_setup(ident, GPIO_USAGE);
-       }
-
-       reserved_peri_map[gpio_bank(ident)] &= ~gpio_bit(ident);
-
-       local_irq_restore(flags);
-}
-EXPORT_SYMBOL(peripheral_free);
-
-void peripheral_free_list(unsigned short per[])
-{
-       u16 cnt;
-
-       for (cnt = 0; per[cnt] != 0; cnt++) {
-               peripheral_free(per[cnt]);
-       }
-
-}
-EXPORT_SYMBOL(peripheral_free_list);
-
-/***********************************************************
-*
-* FUNCTIONS: Blackfin GPIO Driver
-*
-* INPUTS/OUTPUTS:
-* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
-*
-*
-* DESCRIPTION: Blackfin GPIO Driver API
-*
-* CAUTION:
-*************************************************************
-* MODIFICATION HISTORY :
-**************************************************************/
-
-int gpio_request(unsigned short gpio, const char *label)
-{
-       unsigned long flags;
-
-       if (check_gpio(gpio) < 0)
-               return -EINVAL;
-
-       local_irq_save(flags);
-
-       if (unlikely(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
-               printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved by %s 
!\n",
-                        gpio, get_label(gpio));
-               dump_stack();
-               local_irq_restore(flags);
-               return -EBUSY;
-       }
-
-       if (unlikely(reserved_peri_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
-               printk(KERN_ERR
-                      "bfin-gpio: GPIO %d is already reserved as Peripheral by 
%s !\n",
-                      gpio, get_label(gpio));
-               dump_stack();
-               local_irq_restore(flags);
-               return -EBUSY;
-       }
-
-       reserved_gpio_map[gpio_bank(gpio)] |= gpio_bit(gpio);
-
-       local_irq_restore(flags);
-
-       port_setup(gpio, GPIO_USAGE);
-       set_label(gpio, label);
-
-       return 0;
-}
-EXPORT_SYMBOL(gpio_request);
-
-void gpio_free(unsigned short gpio)
-{
-       unsigned long flags;
-
-       if (check_gpio(gpio) < 0)
-               return;
-
-       local_irq_save(flags);
-
-       if (unlikely(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)))) {
-               printk(KERN_ERR "bfin-gpio: GPIO %d wasn't reserved!\n", gpio);
-               dump_stack();
-               local_irq_restore(flags);
-               return;
-       }
-
-       reserved_gpio_map[gpio_bank(gpio)] &= ~gpio_bit(gpio);
-
-       local_irq_restore(flags);
-}
-EXPORT_SYMBOL(gpio_free);
-
-void gpio_direction_input(unsigned short gpio)
-{
-       unsigned long flags;
-
-       BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
-
-       local_irq_save(flags);
-       gpio_array[gpio_bank(gpio)]->port_dir_clear = gpio_bit(gpio);
-       gpio_array[gpio_bank(gpio)]->port_inen |= gpio_bit(gpio);
-       local_irq_restore(flags);
-}
-EXPORT_SYMBOL(gpio_direction_input);
-
-void gpio_direction_output(unsigned short gpio)
-{
-       unsigned long flags;
-
-       BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
-
-       local_irq_save(flags);
-       gpio_array[gpio_bank(gpio)]->port_inen &= ~gpio_bit(gpio);
-       gpio_array[gpio_bank(gpio)]->port_dir_set = gpio_bit(gpio);
-       local_irq_restore(flags);
-}
-EXPORT_SYMBOL(gpio_direction_output);
-
-void gpio_set_value(unsigned short gpio, unsigned short arg)
-{
-       if (arg)
-               gpio_array[gpio_bank(gpio)]->port_set = gpio_bit(gpio);
-       else
-               gpio_array[gpio_bank(gpio)]->port_clear = gpio_bit(gpio);
-
-}
-EXPORT_SYMBOL(gpio_set_value);
-
-unsigned short gpio_get_value(unsigned short gpio)
-{
-       return (1 & (gpio_array[gpio_bank(gpio)]->port_data >> 
gpio_sub_n(gpio)));
-}
-EXPORT_SYMBOL(gpio_get_value);
-
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