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Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6

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* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6:
  hwmon: (it87) request only Environment Controller ports
This commit is contained in:
Linus Torvalds 2008-01-22 09:25:55 -08:00
commit 4ad2b226e1
1 changed files with 23 additions and 9 deletions
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32
drivers/hwmon/it87.c
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@ -2,6 +2,14 @@
it87.c - Part of lm_sensors, Linux kernel modules for hardware it87.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring. monitoring.
The IT8705F is an LPC-based Super I/O part that contains UARTs, a
parallel port, an IR port, a MIDI port, a floppy controller, etc., in
addition to an Environment Controller (Enhanced Hardware Monitor and
Fan Controller)
This driver supports only the Environment Controller in the IT8705F and
similar parts. The other devices are supported by different drivers.
Supports: IT8705F Super I/O chip w/LPC interface Supports: IT8705F Super I/O chip w/LPC interface
IT8712F Super I/O chip w/LPC interface IT8712F Super I/O chip w/LPC interface
IT8716F Super I/O chip w/LPC interface IT8716F Super I/O chip w/LPC interface
@ -118,9 +126,15 @@ static int fix_pwm_polarity;
/* Length of ISA address segment */ /* Length of ISA address segment */
#define IT87_EXTENT 8 #define IT87_EXTENT 8
/* Where are the ISA address/data registers relative to the base address */ /* Length of ISA address segment for Environmental Controller */
#define IT87_ADDR_REG_OFFSET 5 #define IT87_EC_EXTENT 2
#define IT87_DATA_REG_OFFSET 6
/* Offset of EC registers from ISA base address */
#define IT87_EC_OFFSET 5
/* Where are the ISA address/data registers relative to the EC base address */
#define IT87_ADDR_REG_OFFSET 0
#define IT87_DATA_REG_OFFSET 1
/*----- The IT87 registers -----*/ /*----- The IT87 registers -----*/
@ -968,10 +982,10 @@ static int __devinit it87_probe(struct platform_device *pdev)
}; };
res = platform_get_resource(pdev, IORESOURCE_IO, 0); res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (!request_region(res->start, IT87_EXTENT, DRVNAME)) { if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) {
dev_err(dev, "Failed to request region 0x%lx-0x%lx\n", dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
(unsigned long)res->start, (unsigned long)res->start,
(unsigned long)(res->start + IT87_EXTENT - 1)); (unsigned long)(res->start + IT87_EC_EXTENT - 1));
err = -EBUSY; err = -EBUSY;
goto ERROR0; goto ERROR0;
} }
@ -1124,7 +1138,7 @@ static int __devinit it87_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, NULL); platform_set_drvdata(pdev, NULL);
kfree(data); kfree(data);
ERROR1: ERROR1:
release_region(res->start, IT87_EXTENT); release_region(res->start, IT87_EC_EXTENT);
ERROR0: ERROR0:
return err; return err;
} }
@ -1137,7 +1151,7 @@ static int __devexit it87_remove(struct platform_device *pdev)
sysfs_remove_group(&pdev->dev.kobj, &it87_group); sysfs_remove_group(&pdev->dev.kobj, &it87_group);
sysfs_remove_group(&pdev->dev.kobj, &it87_group_opt); sysfs_remove_group(&pdev->dev.kobj, &it87_group_opt);
release_region(data->addr, IT87_EXTENT); release_region(data->addr, IT87_EC_EXTENT);
platform_set_drvdata(pdev, NULL); platform_set_drvdata(pdev, NULL);
kfree(data); kfree(data);
@ -1402,8 +1416,8 @@ static int __init it87_device_add(unsigned short address,
const struct it87_sio_data *sio_data) const struct it87_sio_data *sio_data)
{ {
struct resource res = { struct resource res = {
.start = address , .start = address + IT87_EC_OFFSET,
.end = address + IT87_EXTENT - 1, .end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1,
.name = DRVNAME, .name = DRVNAME,
.flags = IORESOURCE_IO, .flags = IORESOURCE_IO,
}; };