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it87: Support older kernels

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Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck
2012-03-03 07:43:03 -08:00
parent 47be61ff5b
commit efc143c4fd
1 changed files with 11 additions and 0 deletions
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11
it87.c
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@@ -58,6 +58,13 @@
#include <linux/acpi.h> #include <linux/acpi.h>
#include <linux/io.h> #include <linux/io.h>
#ifndef kstrtol
#define kstrtol strict_strtol
#endif
#ifndef kstrtoul
#define kstrtoul strict_strtoul
#endif
#define DRVNAME "it87" #define DRVNAME "it87"
enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8783 }; enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8783 };
@@ -112,8 +119,10 @@ static inline int superio_enter(void)
/* /*
* Try to reserve REG and REG + 1 for exclusive access. * Try to reserve REG and REG + 1 for exclusive access.
*/ */
#ifdef request_muxed_region
if (!request_muxed_region(REG, 2, DRVNAME)) if (!request_muxed_region(REG, 2, DRVNAME))
return -EBUSY; return -EBUSY;
#endif
outb(0x87, REG); outb(0x87, REG);
outb(0x01, REG); outb(0x01, REG);
@@ -126,7 +135,9 @@ static inline void superio_exit(void)
{ {
outb(0x02, REG); outb(0x02, REG);
outb(0x02, VAL); outb(0x02, VAL);
#ifdef request_muxed_region
release_region(REG, 2); release_region(REG, 2);
#endif
} }
/* Logical device 4 registers */ /* Logical device 4 registers */