linux-kernel - Re: [PATCH v4 4/5] pinctrl: qcom: Update clock voting as optional

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Date:   Sun, 5 Dec 2021 18:35:50 -0800
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Srinivasa Rao Mandadapu <srivasam@...eaurora.com>
Cc:     agross@...nel.org, lgirdwood@...il.com, broonie@...nel.org,
        robh+dt@...nel.org, plai@...eaurora.org, bgoswami@...eaurora.org,
        perex@...ex.cz, tiwai@...e.com, srinivas.kandagatla@...aro.org,
        rohitkr@...eaurora.org, linux-arm-msm@...r.kernel.org,
        alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, swboyd@...omium.org,
        judyhsiao@...omium.org, Linus Walleij <linus.walleij@...aro.org>,
        linux-gpio@...r.kernel.org,
        Srinivasa Rao Mandadapu <srivasam@...eaurora.org>,
        Venkata Prasad Potturu <potturu@...eaurora.org>
Subject: Re: [PATCH v4 4/5] pinctrl: qcom: Update clock voting as optional

On Fri 03 Dec 03:32 PST 2021, Srinivasa Rao Mandadapu wrote:

> From: Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
> 
> Update bulk clock voting to optional voting as ADSP bypass platform doesn't
> need macro and decodec clocks, these are maintained as power domains and
> operated from lpass audio core cc.
> 
> Signed-off-by: Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
> Co-developed-by: Venkata Prasad Potturu <potturu@...eaurora.org>
> Signed-off-by: Venkata Prasad Potturu <potturu@...eaurora.org>
> ---
>  drivers/pinctrl/qcom/pinctrl-lpass-lpi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
> index bcc12f6..c2a1110 100644
> --- a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
> +++ b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
> @@ -394,7 +394,7 @@ int lpi_pinctrl_probe(struct platform_device *pdev)
>  		return dev_err_probe(dev, PTR_ERR(pctrl->slew_base),
>  				     "Slew resource not provided\n");
>  
> -	ret = devm_clk_bulk_get(dev, MAX_LPI_NUM_CLKS, pctrl->clks);
> +	ret = devm_clk_bulk_get_optional(dev, MAX_LPI_NUM_CLKS, pctrl->clks);

If some platforms requires this clock and others doesn't have one, then
please make this statement conditional on the compatible, rather than
making it optional on both.

Thanks,
Bjorn

>  	if (ret)
>  		return dev_err_probe(dev, ret, "Can't get clocks\n");
>  
> -- 
> Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
> is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
>