linux-kernel - Re: [PATCH v1 2/2] scsi: ufs: add support to allow non standard behaviours (quirks)

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Date:	Tue, 7 Apr 2015 07:53:16 -0000
From:	"Gilad Broner" <gbroner@...eaurora.org>
To:	"Yaniv Gardi" <ygardi@...eaurora.org>
Cc:	james.bottomley@...senpartnership.com, hch@...radead.org,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, santoshsy@...il.com,
	linux-scsi-owner@...r.kernel.org, ygardi@...eaurora.org,
	"Vinayak Holikatti" <vinholikatti@...il.com>,
	"James E.J. Bottomley" <jbottomley@...allels.com>
Subject: Re: [PATCH v1 2/2] scsi: ufs: add support to allow non standard
 behaviours (quirks)


> Some implementation of UFS host controller HW might have some non-standard
> behaviours (quirks) when compared to behaviour specified by UFSHCI
> specification. This patch add support to allow specifying all such quirks
> to standard UFS host controller driver so standard driver takes them into
> account.
>
> In this change a UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS is introduced,
> where a minimum delay of 1ms is required before DME commands for
> stability purposes.
>
> Signed-off-by: Yaniv Gardi <ygardi@...eaurora.org>
>
> ---
>  drivers/scsi/ufs/ufs-qcom.c | 22 +++++++++++++++++-----
>  drivers/scsi/ufs/ufs-qcom.h | 18 ++++++++++++++++++
>  drivers/scsi/ufs/ufshcd.c   | 35 +++++++++++++++++++++++++++++++++++
>  drivers/scsi/ufs/ufshcd.h   |  9 +++++++++
>  4 files changed, 79 insertions(+), 5 deletions(-)
>

Reviewed-by: Gilad Broner <gbroner@...eaurora.org>

-- 
Qualcomm Israel, on behalf of Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

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