Thread (114 messages) 114 messages, 3 authors, 2013-09-26

[ 056/110] pinctrl: at91: fix get_pullup/down function return

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2013-09-25 00:16:39
Also in: lkml

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Boris BREZILLON <redacted>

commit 05d3534a321d7fe4524b3b83bb20318282f3ec2c upstream.

In PIO_PUSR and PIO_PPDSR register if a given bit is set 1 this means the
pullup/down for this pin (pin is represented as a bit position) is
disabled.

Signed-off-by: Boris BREZILLON <redacted>
Acked-by: Nicolas Ferre <redacted>
Signed-off-by: Linus Walleij <redacted>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/pinctrl/pinctrl-at91.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -325,7 +325,7 @@ static void at91_mux_disable_interrupt(v
 
 static unsigned at91_mux_get_pullup(void __iomem *pio, unsigned pin)
 {
-	return (readl_relaxed(pio + PIO_PUSR) >> pin) & 0x1;
+	return !((readl_relaxed(pio + PIO_PUSR) >> pin) & 0x1);
 }
 
 static void at91_mux_set_pullup(void __iomem *pio, unsigned mask, bool on)
@@ -445,7 +445,7 @@ static void at91_mux_pio3_set_debounce(v
 
 static bool at91_mux_pio3_get_pulldown(void __iomem *pio, unsigned pin)
 {
-	return (__raw_readl(pio + PIO_PPDSR) >> pin) & 0x1;
+	return !((__raw_readl(pio + PIO_PPDSR) >> pin) & 0x1);
 }
 
 static void at91_mux_pio3_set_pulldown(void __iomem *pio, unsigned mask, bool is_on)

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