diff options
Diffstat (limited to 'drivers/char/pc8736x_gpio.c')
| -rw-r--r-- | drivers/char/pc8736x_gpio.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/char/pc8736x_gpio.c b/drivers/char/pc8736x_gpio.c index 4005ee0aa11..5b09efcf60a 100644 --- a/drivers/char/pc8736x_gpio.c +++ b/drivers/char/pc8736x_gpio.c @@ -25,7 +25,7 @@ #define DEVNAME "pc8736x_gpio" MODULE_AUTHOR("Jim Cromie <jim.cromie@gmail.com>"); -MODULE_DESCRIPTION("NatSemi PC-8736x GPIO Pin Driver"); +MODULE_DESCRIPTION("NatSemi/Winbond PC-8736x GPIO Pin Driver"); MODULE_LICENSE("GPL"); static int major; /* default to dynamic major */ @@ -38,14 +38,14 @@ static u8 pc8736x_gpio_shadow[4]; #define SIO_BASE1 0x2E /* 1st command-reg to check */ #define SIO_BASE2 0x4E /* alt command-reg to check */ -#define SIO_BASE_OFFSET 0x20 #define SIO_SID 0x20 /* SuperI/O ID Register */ #define SIO_SID_VALUE 0xe9 /* Expected value in SuperI/O ID Register */ #define SIO_CF1 0x21 /* chip config, bit0 is chip enable */ -#define PC8736X_GPIO_SIZE 16 +#define PC8736X_GPIO_RANGE 16 /* ioaddr range */ +#define PC8736X_GPIO_CT 32 /* minors matching 4 8 bit ports */ #define SIO_UNIT_SEL 0x7 /* unit select reg */ #define SIO_UNIT_ACT 0x30 /* unit enable */ @@ -231,7 +231,7 @@ static int pc8736x_gpio_open(struct inode *inode, struct file *file) dev_dbg(&pdev->dev, "open %d\n", m); - if (m > 63) + if (m >= PC8736X_GPIO_CT) return -EINVAL; return nonseekable_open(inode, file); } @@ -297,7 +297,7 @@ static int __init pc8736x_gpio_init(void) pc8736x_gpio_base = (superio_inb(SIO_BASE_HADDR) << 8 | superio_inb(SIO_BASE_LADDR)); - if (!request_region(pc8736x_gpio_base, 16, DEVNAME)) { + if (!request_region(pc8736x_gpio_base, PC8736X_GPIO_RANGE, DEVNAME)) { rc = -ENODEV; dev_err(&pdev->dev, "GPIO ioport %x busy\n", pc8736x_gpio_base); |