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Date: Wed, 28 Feb 2024 16:26:01 -0600
From: Bjorn Helgaas <helgaas@kernel.org>
To: Daniel Drake <drake@endlessos.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
	dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	bhelgaas@google.com, david.e.box@linux.intel.com,
	mario.limonciello@amd.com, rafael@kernel.org, lenb@kernel.org,
	linux-acpi@vger.kernel.org, linux@endlessos.org,
	Jian-Hong Pan <jhp@endlessos.org>
Subject: Re: [PATCH v3 2/2] Revert "ACPI: PM: Block ASUS B1400CEAE from
 suspend to idle by default"
Message-ID: <20240228222601.GA310596@bhelgaas>
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In-Reply-To: <20240228075316.7404-2-drake@endlessos.org>

[+to Rafael]

On Wed, Feb 28, 2024 at 08:53:16AM +0100, Daniel Drake wrote:
> This reverts commit d52848620de00cde4a3a5df908e231b8c8868250, which
> was originally put in place to work around a s2idle failure on this
> platform where the NVMe device was inaccessible upon resume.
> 
> After extended testing, we found that the firmware's implementation of
> S3 is buggy and intermittently fails to wake up the system. We need
> to revert to s2idle mode.
> 
> The NVMe issue has now been solved more precisely in the commit titled
> "PCI: Disable D3cold on Asus B1400 PCI-NVMe bridge"
> 
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=215742
> Acked-by: Jian-Hong Pan <jhp@endlessos.org>
> Signed-off-by: Daniel Drake <drake@endlessos.org>

Rafael, if you're OK with this, I can queue both patches for v6.9.

> ---
>  drivers/acpi/sleep.c | 12 ------------
>  1 file changed, 12 deletions(-)
> 
> diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
> index 808484d112097..728acfeb774d8 100644
> --- a/drivers/acpi/sleep.c
> +++ b/drivers/acpi/sleep.c
> @@ -385,18 +385,6 @@ static const struct dmi_system_id acpisleep_dmi_table[] __initconst = {
>  		DMI_MATCH(DMI_PRODUCT_NAME, "20GGA00L00"),
>  		},
>  	},
> -	/*
> -	 * ASUS B1400CEAE hangs on resume from suspend (see
> -	 * https://bugzilla.kernel.org/show_bug.cgi?id=215742).
> -	 */
> -	{
> -	.callback = init_default_s3,
> -	.ident = "ASUS B1400CEAE",
> -	.matches = {
> -		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
> -		DMI_MATCH(DMI_PRODUCT_NAME, "ASUS EXPERTBOOK B1400CEAE"),
> -		},
> -	},
>  	{},
>  };
>  
> -- 
> 2.39.2
>