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>
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index e35e20f..42833ee 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -475,9 +475,7 @@
#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 @@
*************************************************************
* 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);
+ if (ctrl)
+ wakeup_map[gpio_bank(gpio)] |= gpio_bit(gpio);
+ else
+ wakeup_map[gpio_bank(gpio)] &= ~gpio_bit(gpio);
- wakeup_map[gpio_bank(gpio)] &= ~gpio_bit(gpio);
-
+ set_gpio_maskb(gpio, ctrl);
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);
- 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);
-
- 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);
-
- return 0;
-}
-
-void bfin_pm_standby_restore(void)
+int bfin_pm_standby_ctrl(unsigned ctrl)
{
u16 bank, mask, i;
@@ -627,24 +539,10 @@
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 @@
#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;