linux-kernel - Re: [PATCH v5 15/15] scsi: ufs-qcom: set PA_Local_TX_LCC

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Date:	Sun, 6 Mar 2016 11:57:34 -0000
From:	ygardi@...eaurora.org
To:	"Hannes Reinecke" <hare@...e.de>
Cc:	"Yaniv Gardi" <ygardi@...eaurora.org>,
	james.bottomley@...senpartnership.com,
	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,
	"Vinayak Holikatti" <vinholikatti@...il.com>,
	"James E.J. Bottomley" <jbottomley@...n.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>
Subject: Re: [PATCH v5 15/15] scsi: ufs-qcom: set PA_Local_TX_LCC_Enable
 before link startup

> On 02/28/2016 09:32 PM, Yaniv Gardi wrote:
>> Some UFS devices (and may be host) have issues if LCC is
>> enabled. So we are setting PA_Local_TX_LCC_Enable to 0
>> before link startup which will make sure that both host
>> and device TX LCC are disabled once link startup is
>> completed.
>>
>> This change also:
>> - enables the device ref clock before changing to HS mode
>>   and disables it if entered to PWM mode
>> - adds printouts of testbus debug registers
>>
> Please make that in two patches; these issues are unrelated and will
> just confuse users if one ever need to dig through the git log.
>

done. in V6 this patch will be divided into 3 patches.
1. LX_LCC
2. device ref clock
3. debug printouts

thanks,
Yaniv

> Cheers,
>
> Hannes
> --
> Dr. Hannes Reinecke		      zSeries & Storage
> hare@...e.de			      +49 911 74053 688
> SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
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