linux-kernel - Re: [PATCH 07/13] scsi: ufs: qcom: Fail ufs_qcom_power_up_sequence() when core

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Message-ID: <iecwyzsamuwhatodicsfptf3dgl5nglrdqyennmhagpjz7yrtr@r72gejcvhi6w>
Date:   Wed, 6 Dec 2023 12:41:28 -0600
From:   Andrew Halaney <ahalaney@...hat.com>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     martin.petersen@...cle.com, jejb@...ux.ibm.com,
        andersson@...nel.org, konrad.dybcio@...aro.org,
        linux-arm-msm@...r.kernel.org, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, quic_cang@...cinc.com
Subject: Re: [PATCH 07/13] scsi: ufs: qcom: Fail ufs_qcom_power_up_sequence()
 when core_reset fails

On Fri, Dec 01, 2023 at 08:44:11PM +0530, Manivannan Sadhasivam wrote:
> Even though core_reset is optional, a failure during assert/deassert should
> be considered fatal, if core_reset is available. So fail
> ufs_qcom_power_up_sequence() if an error happens during reset and also get
> rid of the redundant warning as the ufs_qcom_host_reset() function itself
> prints error messages.
> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

Reviewed-by: Andrew Halaney <ahalaney@...hat.com>
> ---
>  drivers/ufs/host/ufs-qcom.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
> index 604273a22afd..4948dd732aae 100644
> --- a/drivers/ufs/host/ufs-qcom.c
> +++ b/drivers/ufs/host/ufs-qcom.c
> @@ -359,8 +359,7 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
>  	/* Reset UFS Host Controller and PHY */
>  	ret = ufs_qcom_host_reset(hba);

I noticed that ufs_qcom_host_reset() doesn't return an error if
reset_control_deassert() fails. Can you address this in the next spin of
the series (I don't think its in the following patches that I glanced
through).

Thanks,
Andrew

>  	if (ret)
> -		dev_warn(hba->dev, "%s: host reset returned %d\n",
> -				  __func__, ret);
> +		return ret;
>  
>  	/* phy initialization - calibrate the phy */
>  	ret = phy_init(phy);
> -- 
> 2.25.1
> 
>