linux-kernel - Re: [PATCH 4/5] scsi/ufs: qcom: Set phy mode based on the controllers HS MODE

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Date:   Wed, 27 Sep 2017 12:01:16 +0530
From:   Vivek Gautam <vivek.gautam@...eaurora.org>
To:     Subhash Jadavani <subhashj@...eaurora.org>
Cc:     kishon@...com, martin.petersen@...cle.com,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        robh+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        bjorn.andersson@...aro.org, devicetree@...r.kernel.org,
        jejb@...ux.vnet.ibm.com, vinholikatti@...il.com
Subject: Re: [PATCH 4/5] scsi/ufs: qcom: Set phy mode based on the controllers
 HS MODE



On 09/27/2017 04:14 AM, Subhash Jadavani wrote:
> On 2017-08-03 23:48, Vivek Gautam wrote:
>> Set the phy mode based on the UFS HS PA mode. This lets the
>> controller let phy know the mode in which the PHY Adapter is
>> running and set the phy rates accordingly.
>>
>> Signed-off-by: Vivek Gautam <vivek.gautam@...eaurora.org>
>> ---
>>  drivers/scsi/ufs/ufs-qcom.c | 3 +++
>>  1 file changed, 3 insertions(+)
>>
>> diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
>> index c87d770b519a..44c21d5818ee 100644
>> --- a/drivers/scsi/ufs/ufs-qcom.c
>> +++ b/drivers/scsi/ufs/ufs-qcom.c
>> @@ -273,6 +273,9 @@ static int ufs_qcom_power_up_sequence(struct 
>> ufs_hba *hba)
>>      bool is_rate_B = (UFS_QCOM_LIMIT_HS_RATE == PA_HS_MODE_B)
>>                              ? true : false;
>>
>> +    if (is_rate_B)
>> +        phy_set_mode(phy, PHY_MODE_UFS_HS_B);
>> +
>>      /* Assert PHY reset and apply PHY calibration values */
>>      ufs_qcom_assert_reset(hba);
>>      /* provide 1ms delay to let the reset pulse propagate */
>
> Looks good to me.
> Reviewed-by: Subhash Jadavani <subhashj@...eaurora.org>

Thanks for reviewing Subhash.

BRs
Vivek

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