Re: [PATCH v3 02/10] ACPI / x86: Use new `pm_suspend_preferred_s2idle`

From: Rafael J. Wysocki
Date: Wed Jul 13 2022 - 14:33:30 EST


On Fri, Jul 1, 2022 at 4:33 AM Mario Limonciello
<mario.limonciello@xxxxxxx> wrote:
>
> Drop the direct check from the FADT and use the helper instead.
>
> Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
> ---
> drivers/acpi/x86/s2idle.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c
> index 2963229062f8..b1483d5092c1 100644
> --- a/drivers/acpi/x86/s2idle.c
> +++ b/drivers/acpi/x86/s2idle.c
> @@ -369,7 +369,7 @@ static int lps0_device_attach(struct acpi_device *adev,
> if (lps0_device_handle)
> return 0;
>
> - if (!(acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0))
> + if (!pm_suspend_preferred_s2idle())

This needs to be checked in a different place in this function.

Let me cut a patch for that.

> return 0;
>
> if (acpi_s2idle_vendor_amd()) {
> --