diff mbox

[U-Boot,1/4] gpio: sh-pfc: fix gpio input read

Message ID 1437414565-662-1-git-send-email-vladimir.barinov@cogentembedded.com
State Accepted
Delegated to: Nobuhiro Iwamatsu
Headers show

Commit Message

Vladimir Barinov July 20, 2015, 5:49 p.m. UTC 
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>
---
 drivers/gpio/sh_pfc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/gpio/sh_pfc.c b/drivers/gpio/sh_pfc.c
index 7a5af20..95f5b2a 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,