linux-kernel - Re: [PATCH] tpm/tpm_tis: Disable interrupts for MSI GS66 Stealth 11UG

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Message-Id: <CUP7GU9KZ8TD.2R2AI53X2RLTS@suppilovahvero>
Date:   Fri, 11 Aug 2023 01:07:45 +0300
From:   "Jarkko Sakkinen" <jarkko@...nel.org>
To:     "Jonathan McDowell" <noodles@...a.com>,
        "Peter Huewe" <peterhuewe@....de>
Cc:     "Jason Gunthorpe" <jgg@...pe.ca>,
        "Lino Sanfilippo" <l.sanfilippo@...bus.com>,
        "linux-integrity@...r.kernel.org" <linux-integrity@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] tpm/tpm_tis: Disable interrupts for MSI GS66 Stealth
 11UG

On Thu Aug 10, 2023 at 12:18 PM EEST, Jonathan McDowell wrote:
> The MSI GS66 Stealth 11UG laptop also suffers from an IRQ problem with
> tpm_tis, causing the TPM to be inaccessible. Add an entry to
> tpm_tis_dmi_table to force polling mode.
>
> Cc: stable@...r.kernel.org # v6.4+
> Fixes: e644b2f498d2 ("tpm, tpm_tis: Enable interrupt test")
> Signed-off-by: Jonathan McDowell <noodles@...a.com>
> ---
>  drivers/char/tpm/tpm_tis.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
> index ac4daaf294a3..14dee959ee19 100644
> --- a/drivers/char/tpm/tpm_tis.c
> +++ b/drivers/char/tpm/tpm_tis.c
> @@ -130,6 +130,14 @@ static const struct dmi_system_id tpm_tis_dmi_table[] = {
>  			DMI_MATCH(DMI_PRODUCT_NAME, "Laptop (13th Gen Intel Core)"),
>  		},
>  	},
> +	{
> +		.callback = tpm_tis_disable_irq,
> +		.ident = "MSI GS66 Stealth 11UG",
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International Co., Ltd."),
> +			DMI_MATCH(DMI_PRODUCT_NAME, "GS66 Stealth 11UG"),
> +		},
> +	},
>  	{
>  		.callback = tpm_tis_disable_irq,
>  		.ident = "ThinkPad T490s",
> -- 
> 2.41.0

Thanks, please check:

https://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git/commit/?h=next&id=fe59c383eaef3cbcfe2c0404ee449a88c4e01155

BR, Jarkko