[PATCH V3 1/4] gpio: eic-sprd: Keep the clock rtc_1k on

[Wenhua Lin <Wenhua.Lin@xxxxxxxxxx>]

The eic debounce does not have a clock of rtc_1k in the sleep state,
but the eic debounce will be used to wake up the system, therefore the
clock of rtc_1k needs to be kept open.

Signed-off-by: Wenhua Lin <Wenhua.Lin@xxxxxxxxxx>
---
 drivers/gpio/gpio-eic-sprd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpio/gpio-eic-sprd.c b/drivers/gpio/gpio-eic-sprd.c
index be7f2fa5aa7b..bdcb3510a208 100644
--- a/drivers/gpio/gpio-eic-sprd.c
+++ b/drivers/gpio/gpio-eic-sprd.c
@@ -24,6 +24,7 @@
 #define SPRD_EIC_DBNC_IC		0x24
 #define SPRD_EIC_DBNC_TRIG		0x28
 #define SPRD_EIC_DBNC_CTRL0		0x40
+#define SPRD_EIC_DBNC_FORCE_CLK		0x8000
 
 #define SPRD_EIC_LATCH_INTEN		0x0
 #define SPRD_EIC_LATCH_INTRAW		0x4
@@ -223,6 +224,7 @@ static int sprd_eic_set_debounce(struct gpio_chip *chip, unsigned int offset,
 	u32 value = readl_relaxed(base + reg) & ~SPRD_EIC_DBNC_MASK;
 
 	value |= (debounce / 1000) & SPRD_EIC_DBNC_MASK;
+	value |= SPRD_EIC_DBNC_FORCE_CLK;
 	writel_relaxed(value, base + reg);
 
 	return 0;
-- 
2.17.1