From: Wenyou Yang <wenyou.y...@atmel.com>
Because the pin's Pull-Up and Pull-Down property is mutually exclusive.
Signed-off-by: Wenyou Yang <wenyou.y...@atmel.com>
---
drivers/pinctrl/pinctrl-at91.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index a3d8902438c7..ee9c0b7aad14 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -371,6 +371,9 @@ static unsigned at91_mux_get_pullup(void __iomem *pio,
unsigned pin)
static void at91_mux_set_pullup(void __iomem *pio, unsigned mask, bool on)
{
+ if (on)
+ writel_relaxed(mask, pio + PIO_PPDDR);
+
writel_relaxed(mask, pio + (on ? PIO_PUER : PIO_PUDR));
}
@@ -499,6 +502,9 @@ static bool at91_mux_pio3_get_pulldown(void __iomem *pio,
unsigned pin)
static void at91_mux_pio3_set_pulldown(void __iomem *pio, unsigned mask, bool
is_on)
{
+ if (is_on)
+ __raw_writel(mask, pio + PIO_PUDR);
+
__raw_writel(mask, pio + (is_on ? PIO_PPDER : PIO_PPDDR));
}
--
1.9.1
--
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