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From: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Christophe Ricard <christophe.ricard@gmail.com>,
	Peter Huewe <peterhuewe@gmx.de>,
	Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	gregkh <gregkh@linuxfoundation.org>,
	linux-integrity@vger.kernel.org,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] tpm: Fix the description error of the help information in Kconfig
Date: Tue, 28 Jul 2020 20:33:12 +0800
Message-ID: <6153c7d6-306b-9dac-4401-aec3b53da7f5@linux.alibaba.com> (raw)
In-Reply-To: <CAK8P3a0FkrTKvAgPi=tnsShK+=eysbfiRxUTqoxfs6SJVXXnpw@mail.gmail.com>



On 2020/7/27 16:32, Arnd Bergmann wrote:
> On Mon, Jul 27, 2020 at 10:22 AM Tianjia Zhang
> <tianjia.zhang@linux.alibaba.com> wrote:
>>
>> SPI protocol standardized by the TCG is described in the TCG PTP
>> specification 1.3 (chapter 6.4.6 SPI Bit Protocol), It was published by
>> TCG_PCClientTPMInterfaceSpecification_TIS__1-3_27_03212013.pdf.
> 
> I'm still not convinced you got this right, the document you cite only
> seems to mention TPM 1.2 as the base for TIS 1.3, but not TPM 1.3.
> 
>       Arnd
> 

You are right, I was careless, thanks for your reply.

Thanks and best,
Tianjia

>> The TPM version number in the help message is wrong, which will
>> cause confusion. This patch fixes it.
>>
>> Fixes: 0edbfea537d1 ("tpm/tpm_tis_spi: Add support for spi phy")
>> Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
>> ---
>>   drivers/char/tpm/Kconfig | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
>> index 58b4c573d176..8eedb3e704f3 100644
>> --- a/drivers/char/tpm/Kconfig
>> +++ b/drivers/char/tpm/Kconfig
>> @@ -62,7 +62,7 @@ config TCG_TIS_SPI
>>          help
>>            If you have a TPM security chip which is connected to a regular,
>>            non-tcg SPI master (i.e. most embedded platforms) that is compliant with the
>> -         TCG TIS 1.3 TPM specification (TPM1.2) or the TCG PTP FIFO
>> +         TCG TIS 1.3 TPM specification (TPM1.3) or the TCG PTP FIFO
>>            specification (TPM2.0) say Yes and it will be accessible from
>>            within Linux. To compile this driver as a module, choose  M here;
>>            the module will be called tpm_tis_spi.
>> --
>> 2.17.1
>>

      reply index

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-27  8:22 Tianjia Zhang
2020-07-27  8:32 ` Arnd Bergmann
2020-07-28 12:33   ` Tianjia Zhang [this message]

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