linux-kernel - Re: [PATCH 2/3] scsi: ufs: ufs-qcom: Add DELAY_BEFORE

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Message-ID: <6e23410b-7c79-4df7-acf8-32d2b1af6bee@acm.org>
Date: Tue, 20 Aug 2024 14:33:45 -0700
From: Bart Van Assche <bvanassche@....org>
To: Manish Pandey <quic_mapa@...cinc.com>,
 Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
 "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
 "Martin K. Petersen" <martin.petersen@...cle.com>
Cc: linux-arm-msm@...r.kernel.org, linux-scsi@...r.kernel.org,
 linux-kernel@...r.kernel.org, quic_cang@...cinc.com,
 quic_nguyenb@...cinc.com, quic_nitirawa@...cinc.com,
 quic_bhaskarv@...cinc.com, quic_narepall@...cinc.com,
 quic_rampraka@...cinc.com
Subject: Re: [PATCH 2/3] scsi: ufs: ufs-qcom: Add DELAY_BEFORE_LPM quirk for
 Micron and Skhynix

On 8/20/24 5:37 AM, Manish Pandey wrote:
>   static struct ufs_dev_quirk ufs_qcom_dev_fixups[] = {
>   	/* add UFS device specific quirks */
> +	{ .wmanufacturerid = UFS_VENDOR_MICRON,
> +	  .model = UFS_ANY_MODEL,
> +	  .quirk = UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM },
> +	{ .wmanufacturerid = UFS_VENDOR_SKHYNIX,
> +	  .model = UFS_ANY_MODEL,
> +	  .quirk = UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM },
>   	{}
>   };

What makes these quirks specific for Qualcomm controllers? Are these
quirks perhaps required for all UFSHCI controllers?

Thanks,

Bart.