linux-kernel - [PATCH 2/2 v2] imx27: pinctrl: fix offset calculation in imx_read

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Date:	Wed, 22 Jan 2014 11:14:52 +0800
From:	Chris Ruehl <chris.ruehl@...ys.com.hk>
To:	linus.walleij@...aro.org
Cc:	linux-kernel@...r.kernel.org, linux-arm@...ts.infradead.org,
	mpa@...gutronix.de, Chris Ruehl <chris.ruehl@...ys.com.hk>
Subject: [PATCH 2/2 v2] imx27: pinctrl: fix offset calculation in imx_read_2bit

The offset for the 2bit register calculate wrong, this patch
fixes the problem. The debugfs printout for oconf, iconfa, iconfb
now shows the real values.

Signed-off-by: Chris Ruehl <chris.ruehl@...ys.com.hk>
---
 drivers/pinctrl/pinctrl-imx1-core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-imx1-core.c b/drivers/pinctrl/pinctrl-imx1-core.c
index 8dfc3dc..59a16b6 100644
--- a/drivers/pinctrl/pinctrl-imx1-core.c
+++ b/drivers/pinctrl/pinctrl-imx1-core.c
@@ -139,7 +139,7 @@ static int imx1_read_2bit(struct imx1_pinctrl *ipctl, unsigned int pin_id,
 		u32 reg_offset)
 {
 	void __iomem *reg = imx1_mem(ipctl, pin_id) + reg_offset;
-	int offset = pin_id % 16;
+	int offset = (pin_id % 16) * 2;
 
 	/* Use the next register if the pin's port pin number is >=16 */
 	if (pin_id % 32 >= 16)
-- 
1.7.10.4

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