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From: Nitin Rawat <quic_nitirawa@quicinc.com>
To: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
	<vkoul@kernel.org>, <kishon@kernel.org>,
	<manivannan.sadhasivam@linaro.org>,
	<James.Bottomley@HansenPartnership.com>,
	<martin.petersen@oracle.com>, <bvanassche@acm.org>,
	<bjorande@quicinc.com>, <neil.armstrong@linaro.org>
Cc: <quic_rdwivedi@quicinc.com>, <linux-arm-msm@vger.kernel.org>,
	<linux-phy@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
	<linux-scsi@vger.kernel.org>
Subject: Re: [PATCH V3 1/9] scsi: ufs: qcom: add a new phy calibrate API call
Date: Wed, 23 Apr 2025 16:31:07 +0530	[thread overview]
Message-ID: <fb4394e2-991f-4aba-9ddc-ce6cfb7c695d@quicinc.com> (raw)
In-Reply-To: <3735f288-5ba2-4582-afbe-8b3f5d0f280c@oss.qualcomm.com>



On 4/23/2025 4:12 PM, Konrad Dybcio wrote:
> On 4/10/25 11:00 AM, Nitin Rawat wrote:
>> Introduce a new phy calibrate API call in the UFS Qualcomm driver to
>> separate phy calibration from phy power-on. This change is a precursor
>> to the next patchset in this series, which requires these two operations
>> to be distinct.
>>
>> Signed-off-by: Nitin Rawat <quic_nitirawa@quicinc.com>
>> ---
>>   drivers/ufs/host/ufs-qcom.c | 6 ++++++
>>   1 file changed, 6 insertions(+)
>>
>> diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
>> index 1b37449fbffc..4998656e9267 100644
>> --- a/drivers/ufs/host/ufs-qcom.c
>> +++ b/drivers/ufs/host/ufs-qcom.c
>> @@ -473,6 +473,12 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
>>   		goto out_disable_phy;
>>   	}
>>   
>> +	ret = phy_calibrate(phy);
>> +	if (ret) {
>> +		dev_err(hba->dev, "%s: Failed to calibrate PHY %d\n",
> 
> Please add a colon, so that it becomes "..PHY: %d\n"
> 
>> +			__func__, ret);
> Avoid __func__, this print is fine without it

Sure will update this in next patchset.

> 
> Shouldn't we fail the power-on if this can't succeed?

Thanks for the catch. Yes we should return power-on failure if calibrate 
fails.
Even if there is calibrate phy ops registered, it will return 0. So for 
so nonzero return value we should treat failure and fail poweron.
Sure will this in next patchset.

Thanks,
Nitin

> 
> Konrad


  reply	other threads:[~2025-04-23 11:01 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-10  9:00 [PATCH V3 0/9] Refactor phy powerup sequence Nitin Rawat
2025-04-10  9:00 ` [PATCH V3 1/9] scsi: ufs: qcom: add a new phy calibrate API call Nitin Rawat
2025-04-23 10:42   ` Konrad Dybcio
2025-04-23 11:01     ` Nitin Rawat [this message]
2025-04-10  9:00 ` [PATCH V3 2/9] phy: qcom-qmp-ufs: Rename qmp_ufs_enable and qmp_ufs_power_on Nitin Rawat
2025-04-10 20:05   ` Dmitry Baryshkov
2025-04-10  9:00 ` [PATCH V3 3/9] phy: qcom-qmp-ufs: Refactor phy_power_on and phy_calibrate callbacks Nitin Rawat
2025-04-10 20:06   ` Dmitry Baryshkov
2025-04-10  9:00 ` [PATCH V3 4/9] phy: qcom-qmp-ufs: Refactor UFS PHY reset Nitin Rawat
2025-04-10 20:08   ` Dmitry Baryshkov
2025-04-11 10:50     ` Nitin Rawat
2025-04-11 11:08       ` Dmitry Baryshkov
2025-04-14 20:34         ` Nitin Rawat
2025-04-15  9:29           ` Dmitry Baryshkov
2025-04-16  9:08             ` Nitin Rawat
2025-04-16 12:13               ` Dmitry Baryshkov
2025-04-16 12:26                 ` Nitin Rawat
2025-04-23 11:09                   ` Konrad Dybcio
2025-04-23 11:21                     ` Konrad Dybcio
2025-04-23 11:43                       ` Nitin Rawat
2025-04-23 13:47         ` Konrad Dybcio
2025-04-23 13:51           ` Dmitry Baryshkov
2025-04-10  9:00 ` [PATCH V3 5/9] phy: qcom-qmp-ufs: Remove qmp_ufs_com_init() Nitin Rawat
2025-04-10 20:09   ` Dmitry Baryshkov
2025-04-11 10:42     ` Nitin Rawat
2025-04-11 10:56       ` Dmitry Baryshkov
2025-04-14  7:28         ` Nitin Rawat
2025-04-14  7:43           ` Dmitry Baryshkov
2025-04-19 20:08             ` Nitin Rawat
2025-04-23 13:34               ` Dmitry Baryshkov
2025-04-10  9:00 ` [PATCH V3 6/9] phy: qcom-qmp-ufs: Refactor qmp_ufs_exit callback Nitin Rawat
2025-04-23 11:29   ` Konrad Dybcio
2025-04-10  9:01 ` [PATCH V3 7/9] scsi: ufs: qcom : Refactor phy_power_on/off calls Nitin Rawat
2025-04-10  9:01 ` [PATCH V3 8/9] scsi: ufs: qcom : Introduce phy_power_on/off wrapper function Nitin Rawat
2025-04-10  9:01 ` [PATCH V3 9/9] scsi: ufs: qcom: Prevent calling phy_exit before phy_init Nitin Rawat
2025-04-10 20:05 ` [PATCH V3 0/9] Refactor phy powerup sequence Dmitry Baryshkov
2025-04-11 10:35   ` Nitin Rawat

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