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path: root/drivers/gpio/gpio-omap.c
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Diffstat (limited to 'drivers/gpio/gpio-omap.c')
-rw-r--r--drivers/gpio/gpio-omap.c25
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 9fcdb9fe5e87..1e959acb1661 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -296,6 +296,22 @@ static void omap_clear_gpio_debounce(struct gpio_bank *bank, unsigned offset)
}
}
+/*
+ * Off mode wake-up capable GPIOs in bank(s) that are in the wakeup domain.
+ * See TRM section for GPIO for "Wake-Up Generation" for the list of GPIOs
+ * in wakeup domain. If bank->non_wakeup_gpios is not configured, assume none
+ * are capable waking up the system from off mode.
+ */
+static bool omap_gpio_is_off_wakeup_capable(struct gpio_bank *bank, u32 gpio_mask)
+{
+ u32 no_wake = bank->non_wakeup_gpios;
+
+ if (no_wake)
+ return !!(~no_wake & gpio_mask);
+
+ return false;
+}
+
static inline void omap_set_gpio_trigger(struct gpio_bank *bank, int gpio,
unsigned trigger)
{
@@ -327,13 +343,7 @@ static inline void omap_set_gpio_trigger(struct gpio_bank *bank, int gpio,
}
/* This part needs to be executed always for OMAP{34xx, 44xx} */
- if (!bank->regs->irqctrl) {
- /* On omap24xx proceed only when valid GPIO bit is set */
- if (bank->non_wakeup_gpios) {
- if (!(bank->non_wakeup_gpios & gpio_bit))
- goto exit;
- }
-
+ if (!bank->regs->irqctrl && !omap_gpio_is_off_wakeup_capable(bank, gpio)) {
/*
* Log the edge gpio and manually trigger the IRQ
* after resume if the input level changes
@@ -346,7 +356,6 @@ static inline void omap_set_gpio_trigger(struct gpio_bank *bank, int gpio,
bank->enabled_non_wakeup_gpios &= ~gpio_bit;
}
-exit:
bank->level_mask =
readl_relaxed(bank->base + bank->regs->leveldetect0) |
readl_relaxed(bank->base + bank->regs->leveldetect1);