Commit 8918023d authored by Jean Delvare's avatar Jean Delvare

hwmon: (w83627hf) Drop the force_addr module parameter

This module parameter is there to workaround broken BIOS. I'm not even
sure if it was used in the past 5 years, and it gets in the way of
converting the driver to the MFD infrastructure. So tell the users how
they can do the same from user-space.
Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
Cc: Rodolfo Giometti <giometti@linux.it>
parent 591ec650
......@@ -32,8 +32,6 @@ Authors:
Module Parameters
-----------------
* force_addr: int
Initialize the ISA address of the sensors
* force_i2c: int
Initialize the I2C address of the sensors
* init: int
......@@ -70,3 +68,30 @@ doesn't help, you may just ignore the bogus VID reading with no harm done.
For further information on this driver see the w83781d driver documentation.
[1] http://www.lm-sensors.org/browser/lm-sensors/trunk/doc/vid
Forcing the address
-------------------
The driver used to have a module parameter named force_addr, which could
be used to force the base I/O address of the hardware monitoring block.
This was meant as a workaround for mainboards with a broken BIOS. This
module parameter is gone for technical reasons. If you need this feature,
you can obtain the same result by using the isaset tool (part of
lm-sensors) before loading the driver:
# Enter the Super I/O config space
isaset -y -f 0x2e 0x87
isaset -y -f 0x2e 0x87
# Select the hwmon logical device
isaset -y 0x2e 0x2f 0x07 0x0b
# Set the base I/O address (to 0x290 in this example)
isaset -y 0x2e 0x2f 0x60 0x02
isaset -y 0x2e 0x2f 0x61 0x90
# Exit the Super-I/O config space
isaset -y -f 0x2e 0xaa
The above sequence assumes a Super-I/O config space at 0x2e/0x2f, but
0x4e/0x4f is also possible.
......@@ -59,10 +59,6 @@ static struct platform_device *pdev;
#define DRVNAME "w83627hf"
enum chips { w83627hf, w83627thf, w83697hf, w83637hf, w83687thf };
static u16 force_addr;
module_param(force_addr, ushort, 0);
MODULE_PARM_DESC(force_addr,
"Initialize the base address of the sensors");
static u8 force_i2c = 0x1f;
module_param(force_i2c, byte, 0);
MODULE_PARM_DESC(force_i2c,
......@@ -1169,13 +1165,6 @@ static int __init w83627hf_find(int sioaddr, unsigned short *addr,
}
superio_select(W83627HF_LD_HWM);
force_addr &= WINB_ALIGNMENT;
if (force_addr) {
printk(KERN_WARNING DRVNAME ": Forcing address 0x%x\n",
force_addr);
superio_outb(WINB_BASE_REG, force_addr >> 8);
superio_outb(WINB_BASE_REG + 1, force_addr & 0xff);
}
val = (superio_inb(WINB_BASE_REG) << 8) |
superio_inb(WINB_BASE_REG + 1);
*addr = val & WINB_ALIGNMENT;
......
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