linux-kernel - Re: [PATCH v2 1/2] scsi: ufs: core: Remove UFS_DEVICE_QUIRK_DELAY_AFTER

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Message-ID: <6810cbe3202d979bfbdac1d7f5ded6a0db92cab1.camel@mediatek.com>
Date: Mon, 13 Oct 2025 03:56:45 +0000
From: Peter Wang (王信友) <peter.wang@...iatek.com>
To: "quic_cang@...cinc.com" <quic_cang@...cinc.com>,
	"martin.petersen@...cle.com" <martin.petersen@...cle.com>,
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	<chu.stanley@...il.com>, "quic_mapa@...cinc.com" <quic_mapa@...cinc.com>,
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 Del Regno" <angelogioacchino.delregno@...labora.com>,
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Subject: Re: [PATCH v2 1/2] scsi: ufs: core: Remove
 UFS_DEVICE_QUIRK_DELAY_AFTER_LPM quirk

On Thu, 2025-10-09 at 13:10 -0700, Bao D. Nguyen wrote:
> After the ufs device vcc is turned off, all the ufs device
> manufacturers require a period of power-off time before the
> vcc can be turned on again. This requirement has been confirmed
> with all the ufs device manufacturer's datasheets.
> 
> Remove the UFS_DEVICE_QUIRK_DELAY_AFTER_LPM quirk in the ufs
> core driver and implement a universal delay that is required by
> all the ufs device manufacturers. In addition, remove the
> support for this quirk in the platform drivers.
> 
> Signed-off-by: Bao D. Nguyen <quic_nguyenb@...cinc.com>

Reviewed-by: Peter Wang <peter.wang@...iatek.com>