linux-kernel - Re: [PATCH V3 2/2] scsi: ufs: introduce quirk to extend PA

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Message-ID: <995f5cd137d0b0b82a1d253cc081fe9e145738c5.camel@gmail.com>
Date: Fri, 11 Apr 2025 17:42:17 +0200
From: Bean Huo <huobean@...il.com>
To: Manish Pandey <quic_mapa@...cinc.com>, "James E.J. Bottomley"
	 <James.Bottomley@...senPartnership.com>, "Martin K. Petersen"
	 <martin.petersen@...cle.com>, Manivannan Sadhasivam
	 <manivannan.sadhasivam@...aro.org>
Cc: Alim Akhtar <alim.akhtar@...sung.com>, Avri Altman
 <avri.altman@....com>,  Bart Van Assche <bvanassche@....org>,
 linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, quic_nitirawa@...cinc.com, 
 quic_bhaskarv@...cinc.com, quic_rampraka@...cinc.com,
 quic_cang@...cinc.com,  quic_nguyenb@...cinc.com
Subject: Re: [PATCH V3 2/2] scsi: ufs: introduce quirk to extend
 PA_HIBERN8TIME for UFS devices

On Fri, 2025-04-11 at 17:46 +0530, Manish Pandey wrote:
> Samsung UFS devices require additional time in hibern8 mode before
> exiting,
> beyond the negotiated handshaking phase between the host and device.
> Introduce a quirk to increase the PA_HIBERN8TIME parameter by 100 µs,
> a value derived from experiments, to ensure a properhibernation
> process.
> 
> Signed-off-by: Manish Pandey <quic_mapa@...cinc.com>


Reviewed-by: Bean Huo <beanhuo@...ron.com>