From 9035edbae9dd3c10751d78bf80a1b2bc225cda4f Mon Sep 17 00:00:00 2001
From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Date: Mon, 20 Jul 2015 20:49:25 +0300
Subject: [PATCH] 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>
---
drivers/gpio/sh_pfc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/sh_pfc.c b/drivers/gpio/sh_pfc.c
index 7a5af20a2ad..a0eac137c20 100644
--- 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,
--
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