mfd: mt6397: Implement wake handler and suspend/resume to handle wake up event

Implement .irq_set_wake() to get who is wakeup source and setup on suspend/reumse. Enable
mt6393_irq as wake up source properly to pinctrl by enable_irq_wake()/enable_irq_wake().

Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/mfd/mt6397/core.h b/include/linux/mfd/mt6397/core.h
index cf5265b0d1c1..45b8e8aa1fbf 100644
--- a/include/linux/mfd/mt6397/core.h
+++ b/include/linux/mfd/mt6397/core.h
@@ -57,6 +57,7 @@ struct mt6397_chip {
 	int irq;
 	struct irq_domain *irq_domain;
 	struct mutex irqlock;
+	u16 wake_mask[2];
 	u16 irq_masks_cur[2];
 	u16 irq_masks_cache[2];
 };