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Message-ID: <1e3308ad-7bf7-4fb4-82fa-a2f63d464ef7@acm.org>
Date: Thu, 16 May 2024 10:04:56 -0600
From: Bart Van Assche <bvanassche@....org>
To: Avri Altman <Avri.Altman@....com>,
 "Martin K . Petersen" <martin.petersen@...cle.com>
Cc: Bean Huo <beanhuo@...ron.com>, Peter Wang <peter.wang@...iatek.com>,
 "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 1/3] scsi: ufs: Allow RTT negotiation

On 5/16/24 09:21, Avri Altman wrote:
>> On 5/15/24 23:51, Avri Altman wrote:
>>>    void ufshcd_fixup_dev_quirks(struct ufs_hba *hba,
>>>                             const struct ufs_dev_quirk *fixups)
>>>    {
>>> @@ -8278,6 +8312,8 @@ static int ufs_get_device_desc(struct ufs_hba *hba)
>>>        if (hba->ext_iid_sup)
>>>                ufshcd_ext_iid_probe(hba, desc_buf);
>>>
>>> +     ufshcd_rtt_set(hba, desc_buf);
>>> +
>>
>> Why does this call occur in ufs_get_device_desc()? ufshcd_rtt_set() sets
>> a device parameter. Shouldn't this call be moved one level up into
>> ufshcd_device_params_init()?
> Because otherwise bDeviceRTTCap is not available.
> Please note several device configuration calls in  ufs_get_device_desc - all requires some device descriptor fields.

Please make sure that the functionality of ufs_get_device_desc() and the 
name of that function remain in sync.

I think that bDeviceRTTCap is available in ufshcd_device_params_init()
after ufs_get_device_desc() has returned?

Thanks,

Bart.

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