Commit 12c44ab8 authored by Ahmad Khalifa's avatar Ahmad Khalifa Committed by Guenter Roeck
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hwmon: (it87) Add param to ignore ACPI resource conflicts 



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: default avatarAhmad Khalifa <ahmad@khalifa.ws>
Link: https://lore.kernel.org/r/20221004210100.540120-2-ahmad@khalifa.ws


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 415519ad

drivers/hwmon/it87.c

+8 −2
Original line number Diff line number Diff line
@@ -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)

	if (err) {

		if (!ignore_resource_conflict)

			return err;

	}



	pdev = platform_device_alloc(DRVNAME, address);

	if (!pdev)