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hwmon: (it87) Add param to ignore ACPI resource conflicts

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Add parameter to ignore ACPI resource conflicts as an alternate to using
'acpi_enforce_resources=lax'.

Some BIOSes reserve resources and don't use them and the system wide
parameter may result in failures to certain drivers.

Signed-off-by: Ahmad Khalifa <ahmad@khalifa.ws>
Link: https://lore.kernel.org/r/20221004210100.540120-2-ahmad@khalifa.ws
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Ahmad Khalifa 2022-10-04 22:01:01 +01:00 committed by Guenter Roeck
parent 415519ad69
commit 12c44ab8b4
1 changed files with 8 additions and 2 deletions
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10
drivers/hwmon/it87.c
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@ -69,6 +69,10 @@ static unsigned short force_id;
module_param(force_id, ushort, 0);
MODULE_PARM_DESC(force_id, "Override the detected device ID");
static bool ignore_resource_conflict;
module_param(ignore_resource_conflict, bool, 0);
MODULE_PARM_DESC(ignore_resource_conflict, "Ignore ACPI resource conflict");
static struct platform_device *it87_pdev[2];
#define REG_2E 0x2e /* The register to read/write */
@ -3261,8 +3265,10 @@ static int __init it87_device_add(int index, unsigned short address,
int err;
err = acpi_check_resource_conflict(&res);
if (err)
return err;
if (err) {
if (!ignore_resource_conflict)
return err;
}
pdev = platform_device_alloc(DRVNAME, address);
if (!pdev)