pinctrl: imx27: fix offset calculation in imx_read_2bit

commit e3365d0974ed64157f5b5a576c611057dc40a595 upstream.

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@gtsys.com.hk>
Reviewed-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/pinctrl/pinctrl-imx1-core.c b/drivers/pinctrl/pinctrl-imx1-core.c
index 8dfc3dc0ac2ab12463434db4591a15624265df5b..59a16b680b7fbb7a50a2564a010b11158a1b354f 100644 (file)
--- 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)