gpio: sh-pfc: fix gpio input read

Fix gpio_read: gpio input (INDT) and gpio output (OUTDT) registers
have different offset. gpio_read must be performed from INDT.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

diff --git a/drivers/gpio/sh_pfc.c b/drivers/gpio/sh_pfc.c
index 7a5af20a2ad6650b96d4388ea7be32cb47f6203d..a0eac137c20cc858e339b0de94efea942a7af06f 100644 (file)
--- a/drivers/gpio/sh_pfc.c
+++ b/drivers/gpio/sh_pfc.c
@@ -75,7 +75,8 @@ static int gpio_read_bit(struct pinmux_data_reg *dr,
        debug("read_bit: addr = %lx, pos = %ld, "
                 "r_width = %ld\n", dr->reg, pos, dr->reg_width);
 
-       return (gpio_read_raw_reg(dr->mapped_reg, dr->reg_width) >> pos) & 1;
+       return
+           (gpio_read_raw_reg(dr->mapped_reg + 0x4, dr->reg_width) >> pos) & 1;
 }
 
 static void gpio_write_bit(struct pinmux_data_reg *dr,