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Message-ID: <25cdc471-fe0e-3e87-0e41-bc3b7f7d2ade@quicinc.com>
Date:   Wed, 29 Nov 2023 14:08:34 +0530
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Subject: Re: [PATCH v6 09/10] scsi: ufs: ufs-qcom: Check return value of
 phy_set_mode_ext()
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To:     Can Guo <quic_cang@quicinc.com>, <bvanassche@acm.org>,
        <mani@kernel.org>, <adrian.hunter@intel.com>, <cmd4@qualcomm.com>,
        <beanhuo@micron.com>, <avri.altman@wdc.com>,
        <junwoo80.lee@samsung.com>, <martin.petersen@oracle.com>
CC:     <linux-scsi@vger.kernel.org>, <linux-arm-msm@vger.kernel.org>,
        Andy Gross <agross@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        "James E.J. Bottomley" <jejb@linux.ibm.com>,
        "open list" <linux-kernel@vger.kernel.org>
References: <1701246516-11626-1-git-send-email-quic_cang@quicinc.com>
 <1701246516-11626-10-git-send-email-quic_cang@quicinc.com>
From:   Nitin Rawat <quic_nitirawa@quicinc.com>
In-Reply-To: <1701246516-11626-10-git-send-email-quic_cang@quicinc.com>
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On 11/29/2023 1:58 PM, Can Guo wrote:
> In ufs_qcom_power_up_sequence(), check return value of phy_set_mode_ext()
> and stop proceeding if phy_set_mode_ext() fails.
> 
> Signed-off-by: Can Guo <quic_cang@quicinc.com>
> ---
>   drivers/ufs/host/ufs-qcom.c | 7 ++++++-
>   1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
> index 30f4ca6..9c0ebbc 100644
> --- a/drivers/ufs/host/ufs-qcom.c
> +++ b/drivers/ufs/host/ufs-qcom.c
> @@ -475,7 +475,12 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
>   		return ret;
>   	}
>   
> -	phy_set_mode_ext(phy, mode, host->phy_gear);
> +	ret = phy_set_mode_ext(phy, mode, host->phy_gear);
> +	if (ret) {
> +		dev_err(hba->dev, "%s: phy set mode failed, ret = %d\n",
> +			__func__, ret);
> +		goto out_disable_phy;
> +	}
>   
>   	/* power on phy - start serdes and phy's power and clocks */
>   	ret = phy_power_on(phy);

Reviewed-by: Nitin Rawat <quic_nitirawa@quicinc.com>