#include <linux/slab.h>
#include <linux/init.h>
#include <linux/kthread.h>
+#include <linux/of_platform.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/sections.h>
-#include <asm/of_platform.h>
#include <asm/macio.h>
#define LOG_TEMP 0 /* continously log temperature */
-#define I2C_DRIVERID_G4FAN 0x9001 /* fixme */
-
static int do_probe( struct i2c_adapter *adapter, int addr, int kind);
/* scan 0x48-0x4f (DS1775) and 0x2c-2x2f (ADM1030) */
-static unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
+static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
0x4c, 0x4d, 0x4e, 0x4f,
0x2c, 0x2d, 0x2e, 0x2f,
I2C_CLIENT_END };
volatile int running;
struct task_struct *poll_task;
- struct semaphore lock;
+ struct mutex lock;
struct of_device *of_dev;
struct i2c_client *thermostat;
setup_hardware( void )
{
int val;
+ int err;
/* save registers (if we unload the module) */
x.r0 = read_reg( x.fan, 0x00, 1 );
x.upind = -1;
/* tune_fan( fan_up_table[x.upind].fan_setting ); */
- device_create_file( &x.of_dev->dev, &dev_attr_cpu_temperature );
- device_create_file( &x.of_dev->dev, &dev_attr_case_temperature );
+ err = device_create_file( &x.of_dev->dev, &dev_attr_cpu_temperature );
+ err |= device_create_file( &x.of_dev->dev, &dev_attr_case_temperature );
+ if (err)
+ printk(KERN_WARNING
+ "Failed to create temperature attribute file(s).\n");
}
static void
static int control_loop(void *dummy)
{
- down(&x.lock);
+ mutex_lock(&x.lock);
setup_hardware();
- up(&x.lock);
+ mutex_unlock(&x.lock);
for (;;) {
msleep_interruptible(8000);
if (kthread_should_stop())
break;
- down(&x.lock);
+ mutex_lock(&x.lock);
poll_temp();
- up(&x.lock);
+ mutex_unlock(&x.lock);
}
- down(&x.lock);
+ mutex_lock(&x.lock);
restore_regs();
- up(&x.lock);
+ mutex_unlock(&x.lock);
return 0;
}
.driver = {
.name = "therm_windtunnel",
},
- .id = I2C_DRIVERID_G4FAN,
.attach_adapter = do_attach,
.detach_client = do_detach,
};
const struct apple_thermal_info *info;
struct device_node *np;
- init_MUTEX( &x.lock );
+ mutex_init(&x.lock);
if( !(np=of_find_node_by_name(NULL, "power-mgt")) )
return -ENODEV;