linux-kernel - Re: [PATCH V15 1/2] scsi: ufs: set the device reference clock setting

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Date:   Thu, 18 Oct 2018 09:30:21 -0500
From:   Rob Herring <robh@...nel.org>
To:     Sayali Lokhande <sayalil@...eaurora.org>
Cc:     subhashj@...eaurora.org, cang@...eaurora.org,
        vivek.gautam@...eaurora.org, rnayak@...eaurora.org,
        vinholikatti@...il.com, jejb@...ux.vnet.ibm.com,
        martin.petersen@...cle.com, asutoshd@...eaurora.org,
        evgreen@...omium.org, riteshh@...eaurora.org,
        stummala@...eaurora.org, adrian.hunter@...el.com,
        jlbec@...lplan.org, linux-scsi@...r.kernel.org,
        Mark Rutland <mark.rutland@....com>,
        Mathieu Malaterre <malat@...ian.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V15 1/2] scsi: ufs: set the device reference clock setting

On Tue, Oct 16, 2018 at 02:29:41PM +0530, Sayali Lokhande wrote:
> From: Subhash Jadavani <subhashj@...eaurora.org>
> 
> UFS host supplies the reference clock to UFS device and UFS device
> specification allows host to provide one of the 4 frequencies (19.2 MHz,
> 26 MHz, 38.4 MHz, 52 MHz) for reference clock. Host should set the
> device reference clock frequency setting in the device based on what
> frequency it is supplying to UFS device.
> 
> Signed-off-by: Subhash Jadavani <subhashj@...eaurora.org>
> Signed-off-by: Can Guo <cang@...eaurora.org>
> Signed-off-by: Sayali Lokhande <sayalil@...eaurora.org>
> Reviewed-by: Evan Green <evgreen@...omium.org>
> ---
>  .../devicetree/bindings/ufs/ufshcd-pltfrm.txt      |  6 ++

Acked-by: Rob Herring <robh@...nel.org>

>  drivers/scsi/ufs/ufs.h                             | 14 ++++
>  drivers/scsi/ufs/ufshcd.c                          | 83 ++++++++++++++++++++++
>  drivers/scsi/ufs/ufshcd.h                          |  2 +
>  4 files changed, 105 insertions(+)