Blackfin: punt Blackfin-specific GPIO wakeup API

This patch removes a custom GPIO wakeup API which allowed GPIOs to act
as wakeup sources, which are not configured as Interrupts.
This API is a leftover from the time before irq_wake was established.
From now on people must use enable_irq_wake(GPIO_IRQx) and the GPIO in
question needs to be configured as Interrupt.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 12 insertions, 119 deletions

diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index e35e20f00d9b..42833ee2b308 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -475,9 +475,7 @@ GET_GPIO_P(maskb)
 
 
 #ifdef CONFIG_PM
-
 static unsigned short wakeup_map[GPIO_BANK_NUM];
-static unsigned char wakeup_flags_map[MAX_BLACKFIN_GPIOS];
 
 static const unsigned int sic_iwr_irqs[] = {
 #if defined(BF533_FAMILY)
@@ -514,112 +512,26 @@ static const unsigned int sic_iwr_irqs[] = {
 *************************************************************
 * MODIFICATION HISTORY :
 **************************************************************/
-int gpio_pm_wakeup_request(unsigned gpio, unsigned char type)
-{
-        unsigned long flags;
-
-        if ((check_gpio(gpio) < 0) || !type)
-                return -EINVAL;
-
-        local_irq_save_hw(flags);
-        wakeup_map[gpio_bank(gpio)] |= gpio_bit(gpio);
-        wakeup_flags_map[gpio] = type;
-        local_irq_restore_hw(flags);
-
-        return 0;
-}
-EXPORT_SYMBOL(gpio_pm_wakeup_request);
-
-void gpio_pm_wakeup_free(unsigned gpio)
+int gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl)
 {
         unsigned long flags;
 
         if (check_gpio(gpio) < 0)
-                return;
+                return -EINVAL;
 
         local_irq_save_hw(flags);
-
-        wakeup_map[gpio_bank(gpio)] &= ~gpio_bit(gpio);
-
-        local_irq_restore_hw(flags);
-}
-EXPORT_SYMBOL(gpio_pm_wakeup_free);
-
-static int bfin_gpio_wakeup_type(unsigned gpio, unsigned char type)
-{
-        port_setup(gpio, GPIO_USAGE);
-        set_gpio_dir(gpio, 0);
-        set_gpio_inen(gpio, 1);
-
-        if (type & (PM_WAKE_RISING | PM_WAKE_FALLING))
-                set_gpio_edge(gpio, 1);
-         else
-                set_gpio_edge(gpio, 0);
-
-        if ((type & (PM_WAKE_BOTH_EDGES)) == (PM_WAKE_BOTH_EDGES))
-                set_gpio_both(gpio, 1);
+        if (ctrl)
+                wakeup_map[gpio_bank(gpio)] |= gpio_bit(gpio);
         else
-                set_gpio_both(gpio, 0);
-
-        if ((type & (PM_WAKE_FALLING | PM_WAKE_LOW)))
-                set_gpio_polar(gpio, 1);
-        else
-                set_gpio_polar(gpio, 0);
+                wakeup_map[gpio_bank(gpio)] &= ~gpio_bit(gpio);
 
-        SSYNC();
-
-        return 0;
-}
-
-u32 bfin_pm_standby_setup(void)
-{
-        u16 bank, mask, i, gpio;
-
-        for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
-                mask = wakeup_map[gpio_bank(i)];
-                bank = gpio_bank(i);
-
-                gpio_bank_saved[bank].maskb = gpio_array[bank]->maskb;
-                gpio_array[bank]->maskb = 0;
-
-                if (mask) {
-#if defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x)
-                        gpio_bank_saved[bank].fer   = *port_fer[bank];
-#endif
-                        gpio_bank_saved[bank].inen  = gpio_array[bank]->inen;
-                        gpio_bank_saved[bank].polar = gpio_array[bank]->polar;
-                        gpio_bank_saved[bank].dir   = gpio_array[bank]->dir;
-                        gpio_bank_saved[bank].edge  = gpio_array[bank]->edge;
-                        gpio_bank_saved[bank].both  = gpio_array[bank]->both;
-                        gpio_bank_saved[bank].reserved =
-                                                reserved_gpio_map[bank];
-
-                        gpio = i;
-
-                        while (mask) {
-                                if ((mask & 1) && (wakeup_flags_map[gpio] !=
-                                        PM_WAKE_IGNORE)) {
-                                        reserved_gpio_map[gpio_bank(gpio)] |=
-                                                        gpio_bit(gpio);
-                                        bfin_gpio_wakeup_type(gpio,
-                                                wakeup_flags_map[gpio]);
-                                        set_gpio_data(gpio, 0); /*Clear*/
-                                }
-                                gpio++;
-                                mask >>= 1;
-                        }
-
-                        bfin_internal_set_wake(sic_iwr_irqs[bank], 1);
-                        gpio_array[bank]->maskb_set = wakeup_map[gpio_bank(i)];
-                }
-        }
-
-        AWA_DUMMY_READ(maskb_set);
+        set_gpio_maskb(gpio, ctrl);
+        local_irq_restore_hw(flags);
 
         return 0;
 }
 
-void bfin_pm_standby_restore(void)
+int bfin_pm_standby_ctrl(unsigned ctrl)
 {
         u16 bank, mask, i;
 
@@ -627,24 +539,10 @@ void bfin_pm_standby_restore(void)
                 mask = wakeup_map[gpio_bank(i)];
                 bank = gpio_bank(i);
 
-                if (mask) {
-#if defined(CONFIG_BF52x) || defined(BF537_FAMILY) || defined(CONFIG_BF51x)
-                        *port_fer[bank]         = gpio_bank_saved[bank].fer;
-#endif
-                        gpio_array[bank]->inen  = gpio_bank_saved[bank].inen;
-                        gpio_array[bank]->dir   = gpio_bank_saved[bank].dir;
-                        gpio_array[bank]->polar = gpio_bank_saved[bank].polar;
-                        gpio_array[bank]->edge  = gpio_bank_saved[bank].edge;
-                        gpio_array[bank]->both  = gpio_bank_saved[bank].both;
-
-                        reserved_gpio_map[bank] =
-                                        gpio_bank_saved[bank].reserved;
-                        bfin_internal_set_wake(sic_iwr_irqs[bank], 0);
-                }
-
-                gpio_array[bank]->maskb = gpio_bank_saved[bank].maskb;
+                if (mask)
+                        bfin_internal_set_wake(sic_iwr_irqs[bank], ctrl);
         }
-        AWA_DUMMY_READ(maskb);
+        return 0;
 }
 
 void bfin_gpio_pm_hibernate_suspend(void)
@@ -708,16 +606,11 @@ void bfin_gpio_pm_hibernate_restore(void)
 #else /* CONFIG_BF54x */
 #ifdef CONFIG_PM
 
-u32 bfin_pm_standby_setup(void)
+int bfin_pm_standby_ctrl(unsigned ctrl)
 {
         return 0;
 }
 
-void bfin_pm_standby_restore(void)
-{
-
-}
-
 void bfin_gpio_pm_hibernate_suspend(void)
 {
         int i, bank;