linux-kernel - Re: [PATCH v2 1/1] scsi: ufs: Remove support for old UFSHCI versions

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Message-ID: <66431679-26f0-48eb-8303-35e151481292@acm.org>
Date: Wed, 3 Apr 2024 09:26:55 -0700
From: Bart Van Assche <bvanassche@....org>
To: Avri Altman <avri.altman@....com>,
 "James E . J . Bottomley" <jejb@...ux.ibm.com>,
 "Martin K . Petersen" <martin.petersen@...cle.com>
Cc: Christoph Hellwig <hch@...radead.org>, Bean Huo <beanhuo@...ron.com>,
 linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/1] scsi: ufs: Remove support for old UFSHCI versions

On 3/27/24 00:17, Avri Altman wrote:
> UFS spec version 2.1 was published more than 10 years ago. It is
> vanishingly unlikely that even there are out there platforms that uses
> earlier host controllers, let alone that those ancient platforms will
> ever run a V6.10 kernel.  Thus, remove support of host controllers prior
> to UFS2.1.

According to this website, Pixel 1 devices have a UFSHCI 2.0 controller:
https://www.gsmarena.com/google_pixel-8346.php. There may be other
smartphones that have a UFSHCI 2.0 controller. Hence, I'm not sure we
can drop support for UFSHCI 2.0 controllers from the kernel.

Thanks,

Bart.