linux-kernel - Re: [PATCH v9 1/3] phy: qcom-edp: add regulator_set

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Date:   Fri, 20 May 2022 13:14:23 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Kuogee Hsieh <quic_khsieh@...cinc.com>, agross@...nel.org,
        airlied@...ux.ie, bjorn.andersson@...aro.org, daniel@...ll.ch,
        dianders@...omium.org, dmitry.baryshkov@...aro.org,
        dri-devel@...ts.freedesktop.org, robdclark@...il.com,
        sean@...rly.run, vkoul@...nel.org
Cc:     quic_abhinavk@...cinc.com, quic_aravindh@...cinc.com,
        quic_sbillaka@...cinc.com, freedreno@...ts.freedesktop.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v9 1/3] phy: qcom-edp: add regulator_set_load to edp phy

Quoting Kuogee Hsieh (2022-05-20 13:06:05)
> This patch add regulator_set_load() before enable regulator at
> eDP phy driver.
>
> Signed-off-by: Kuogee Hsieh <quic_khsieh@...cinc.com>
> ---
>  drivers/phy/qualcomm/phy-qcom-edp.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c
> index cacd32f..0b7f318 100644
> --- a/drivers/phy/qualcomm/phy-qcom-edp.c
> +++ b/drivers/phy/qualcomm/phy-qcom-edp.c
> @@ -639,6 +639,9 @@ static int qcom_edp_phy_probe(struct platform_device *pdev)
>         if (ret)
>                 return ret;
>
> +       regulator_set_load(edp->supplies[0].consumer, 21800); /* 1.2 V vdda-phy */
> +       regulator_set_load(edp->supplies[1].consumer, 36000); /* 0.9 V vdda-pll */

Why aren't there checks for errors on these API calls?