linux-kernel - it8761e_gpio: Fixed bug in gpio numbering

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Message-ID: <4BD7F0D9.4040105@compulab.co.il>
Date:	Wed, 28 Apr 2010 11:24:57 +0300
From:	Denis Turischev <denis@...pulab.co.il>
To:	LKML <linux-kernel@...r.kernel.org>
CC:	David Brownell <dbrownell@...rs.sourceforge.net>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: it8761e_gpio: Fixed bug in gpio numbering

SIO chip contains 16 possible gpio lines, not 14. Schematic just was not
read carefully.

Signed-off-by: Denis Turischev <denis@...pulab.co.il>
---
 drivers/gpio/it8761e_gpio.c |   18 +++++++++---------
 1 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/gpio/it8761e_gpio.c b/drivers/gpio/it8761e_gpio.c
index 753219c..41a9388 100644
--- a/drivers/gpio/it8761e_gpio.c
+++ b/drivers/gpio/it8761e_gpio.c
@@ -80,8 +80,8 @@ static int it8761e_gpio_get(struct gpio_chip *gc, unsigned gpio_num)
 	u16 reg;
 	u8 bit;

-	bit = gpio_num % 7;
-	reg = (gpio_num >= 7) ? gpio_ba + 1 : gpio_ba;
+	bit = gpio_num % 8;
+	reg = (gpio_num >= 8) ? gpio_ba + 1 : gpio_ba;

 	return !!(inb(reg) & (1 << bit));
 }
@@ -91,8 +91,8 @@ static int it8761e_gpio_direction_in(struct gpio_chip *gc, unsigned gpio_num)
 	u8 curr_dirs;
 	u8 io_reg, bit;

-	bit = gpio_num % 7;
-	io_reg = (gpio_num >= 7) ? GPIO2X_IO : GPIO1X_IO;
+	bit = gpio_num % 8;
+	io_reg = (gpio_num >= 8) ? GPIO2X_IO : GPIO1X_IO;

 	spin_lock(&sio_lock);

@@ -116,8 +116,8 @@ static void it8761e_gpio_set(struct gpio_chip *gc,
 	u8 curr_vals, bit;
 	u16 reg;

-	bit = gpio_num % 7;
-	reg = (gpio_num >= 7) ? gpio_ba + 1 : gpio_ba;
+	bit = gpio_num % 8;
+	reg = (gpio_num >= 8) ? gpio_ba + 1 : gpio_ba;

 	spin_lock(&sio_lock);

@@ -135,8 +135,8 @@ static int it8761e_gpio_direction_out(struct gpio_chip *gc,
 {
 	u8 curr_dirs, io_reg, bit;

-	bit = gpio_num % 7;
-	io_reg = (gpio_num >= 7) ? GPIO2X_IO : GPIO1X_IO;
+	bit = gpio_num % 8;
+	io_reg = (gpio_num >= 8) ? GPIO2X_IO : GPIO1X_IO;

 	it8761e_gpio_set(gc, gpio_num, val);

@@ -200,7 +200,7 @@ static int __init it8761e_gpio_init(void)
 		return -EBUSY;

 	it8761e_gpio_chip.base = -1;
-	it8761e_gpio_chip.ngpio = 14;
+	it8761e_gpio_chip.ngpio = 16;

 	err = gpiochip_add(&it8761e_gpio_chip);
 	if (err < 0)
-- 1.6.3.3
--
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