diff options
Diffstat (limited to 'drivers/char/pc8736x_gpio.c')
-rw-r--r-- | drivers/char/pc8736x_gpio.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/char/pc8736x_gpio.c b/drivers/char/pc8736x_gpio.c index b8183d508332..72dcf222f141 100644 --- a/drivers/char/pc8736x_gpio.c +++ b/drivers/char/pc8736x_gpio.c | |||
@@ -16,6 +16,7 @@ | |||
16 | #include <linux/kernel.h> | 16 | #include <linux/kernel.h> |
17 | #include <linux/init.h> | 17 | #include <linux/init.h> |
18 | #include <linux/ioport.h> | 18 | #include <linux/ioport.h> |
19 | #include <linux/mutex.h> | ||
19 | #include <linux/nsc_gpio.h> | 20 | #include <linux/nsc_gpio.h> |
20 | #include <linux/platform_device.h> | 21 | #include <linux/platform_device.h> |
21 | #include <asm/uaccess.h> | 22 | #include <asm/uaccess.h> |
@@ -31,7 +32,7 @@ static int major; /* default to dynamic major */ | |||
31 | module_param(major, int, 0); | 32 | module_param(major, int, 0); |
32 | MODULE_PARM_DESC(major, "Major device number"); | 33 | MODULE_PARM_DESC(major, "Major device number"); |
33 | 34 | ||
34 | static DEFINE_SPINLOCK(pc8736x_gpio_config_lock); | 35 | static DEFINE_MUTEX(pc8736x_gpio_config_lock); |
35 | static unsigned pc8736x_gpio_base; | 36 | static unsigned pc8736x_gpio_base; |
36 | static u8 pc8736x_gpio_shadow[4]; | 37 | static u8 pc8736x_gpio_shadow[4]; |
37 | 38 | ||
@@ -119,9 +120,8 @@ static inline u32 pc8736x_gpio_configure_fn(unsigned index, u32 mask, u32 bits, | |||
119 | u32 func_slct) | 120 | u32 func_slct) |
120 | { | 121 | { |
121 | u32 config, new_config; | 122 | u32 config, new_config; |
122 | unsigned long flags; | ||
123 | 123 | ||
124 | spin_lock_irqsave(&pc8736x_gpio_config_lock, flags); | 124 | mutex_lock(&pc8736x_gpio_config_lock); |
125 | 125 | ||
126 | device_select(SIO_GPIO_UNIT); | 126 | device_select(SIO_GPIO_UNIT); |
127 | select_pin(index); | 127 | select_pin(index); |
@@ -133,7 +133,7 @@ static inline u32 pc8736x_gpio_configure_fn(unsigned index, u32 mask, u32 bits, | |||
133 | new_config = (config & mask) | bits; | 133 | new_config = (config & mask) | bits; |
134 | superio_outb(func_slct, new_config); | 134 | superio_outb(func_slct, new_config); |
135 | 135 | ||
136 | spin_unlock_irqrestore(&pc8736x_gpio_config_lock, flags); | 136 | mutex_unlock(&pc8736x_gpio_config_lock); |
137 | 137 | ||
138 | return config; | 138 | return config; |
139 | } | 139 | } |