On Tue, Oct 04, 2022 at 10:01:01PM +0100, Ahmad Khalifa wrote:
> 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@xxxxxxxxxx>
Applied to hwmon-next.
Thanks,
Guenter
> ---
> drivers/hwmon/it87.c | 10 ++++++++--
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
> index 0e543dbe0a6b..c4f5500dcf3c 100644
> --- a/drivers/hwmon/it87.c
> +++ b/drivers/hwmon/it87.c
> @@ -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)
