diff options
author | Denis Turischev <denis@compulab.co.il> | 2010-05-11 17:06:44 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-11 20:33:41 -0400 |
commit | 3c904afd7358e9ef515eb5df36b6f25c2b7fc2da (patch) | |
tree | 68d8d45fc81b47d87ac4ac7bdd823845ba149947 /drivers/gpio/it8761e_gpio.c | |
parent | f33d7e2d2d113a63772bbc993cdec3b5327f0ef1 (diff) |
it8761e_gpio: fix bug in gpio numbering
The SIO chip contains 16 possible gpio lines, not 14. The schematic was
not read carefully.
Signed-off-by: Denis Turischev <denis@compulab.co.il>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/gpio/it8761e_gpio.c')
-rw-r--r-- | 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 753219cf993a..41a9388f2fde 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) | |||
80 | u16 reg; | 80 | u16 reg; |
81 | u8 bit; | 81 | u8 bit; |
82 | 82 | ||
83 | bit = gpio_num % 7; | 83 | bit = gpio_num % 8; |
84 | reg = (gpio_num >= 7) ? gpio_ba + 1 : gpio_ba; | 84 | reg = (gpio_num >= 8) ? gpio_ba + 1 : gpio_ba; |
85 | 85 | ||
86 | return !!(inb(reg) & (1 << bit)); | 86 | return !!(inb(reg) & (1 << bit)); |
87 | } | 87 | } |
@@ -91,8 +91,8 @@ static int it8761e_gpio_direction_in(struct gpio_chip *gc, unsigned gpio_num) | |||
91 | u8 curr_dirs; | 91 | u8 curr_dirs; |
92 | u8 io_reg, bit; | 92 | u8 io_reg, bit; |
93 | 93 | ||
94 | bit = gpio_num % 7; | 94 | bit = gpio_num % 8; |
95 | io_reg = (gpio_num >= 7) ? GPIO2X_IO : GPIO1X_IO; | 95 | io_reg = (gpio_num >= 8) ? GPIO2X_IO : GPIO1X_IO; |
96 | 96 | ||
97 | spin_lock(&sio_lock); | 97 | spin_lock(&sio_lock); |
98 | 98 | ||
@@ -116,8 +116,8 @@ static void it8761e_gpio_set(struct gpio_chip *gc, | |||
116 | u8 curr_vals, bit; | 116 | u8 curr_vals, bit; |
117 | u16 reg; | 117 | u16 reg; |
118 | 118 | ||
119 | bit = gpio_num % 7; | 119 | bit = gpio_num % 8; |
120 | reg = (gpio_num >= 7) ? gpio_ba + 1 : gpio_ba; | 120 | reg = (gpio_num >= 8) ? gpio_ba + 1 : gpio_ba; |
121 | 121 | ||
122 | spin_lock(&sio_lock); | 122 | spin_lock(&sio_lock); |
123 | 123 | ||
@@ -135,8 +135,8 @@ static int it8761e_gpio_direction_out(struct gpio_chip *gc, | |||
135 | { | 135 | { |
136 | u8 curr_dirs, io_reg, bit; | 136 | u8 curr_dirs, io_reg, bit; |
137 | 137 | ||
138 | bit = gpio_num % 7; | 138 | bit = gpio_num % 8; |
139 | io_reg = (gpio_num >= 7) ? GPIO2X_IO : GPIO1X_IO; | 139 | io_reg = (gpio_num >= 8) ? GPIO2X_IO : GPIO1X_IO; |
140 | 140 | ||
141 | it8761e_gpio_set(gc, gpio_num, val); | 141 | it8761e_gpio_set(gc, gpio_num, val); |
142 | 142 | ||
@@ -200,7 +200,7 @@ static int __init it8761e_gpio_init(void) | |||
200 | return -EBUSY; | 200 | return -EBUSY; |
201 | 201 | ||
202 | it8761e_gpio_chip.base = -1; | 202 | it8761e_gpio_chip.base = -1; |
203 | it8761e_gpio_chip.ngpio = 14; | 203 | it8761e_gpio_chip.ngpio = 16; |
204 | 204 | ||
205 | err = gpiochip_add(&it8761e_gpio_chip); | 205 | err = gpiochip_add(&it8761e_gpio_chip); |
206 | if (err < 0) | 206 | if (err < 0) |