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Message-ID: <63718e7b-bc37-af47-011d-9fd0207a6d2c@amd.com>
Date: Mon, 24 Oct 2022 19:12:36 -0500
From: "Limonciello, Mario" <mario.limonciello@....com>
To: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: kolAflash <kolAflash@...ahilft.de>, linux-pm@...r.kernel.org,
linux-kernel@...r.kernel.org, Pavel Machek <pavel@....cz>,
Len Brown <len.brown@...el.com>
Subject: Re: [PATCH] PM: hibernate: Allow hybrid sleep to work with s2idle
On 10/12/2022 22:50, Mario Limonciello wrote:
> Hybrid sleep is currently hardcoded to only operate with S3 even
> on systems that might not support it.
>
> Instead of assuming this mode is what the user wants to use, for
> hybrid sleep follow the setting of `mem_sleep_current` which
> will respect mem_sleep_default kernel command line and policy
> decisions made by the presence of the FADT low power idle bit.
>
> Reported-and-tested-by: kolAflash <kolAflash@...ahilft.de>
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=216574
> Signed-off-by: Mario Limonciello <mario.limonciello@....com>
> ---
> kernel/power/hibernate.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Hi Rafael,
This got sent near the merge window a few weeks ago. It's a trivial fix
so I just want to make sure it didn't get misplaced.
Thanks!
>
> diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
> index 89c71fce225dd..537dd3beafc16 100644
> --- a/kernel/power/hibernate.c
> +++ b/kernel/power/hibernate.c
> @@ -641,7 +641,7 @@ static void power_down(void)
> int error;
>
> if (hibernation_mode == HIBERNATION_SUSPEND) {
> - error = suspend_devices_and_enter(PM_SUSPEND_MEM);
> + error = suspend_devices_and_enter(mem_sleep_current);
> if (error) {
> hibernation_mode = hibernation_ops ?
> HIBERNATION_PLATFORM :
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