linux-kernel - Re: [PATCH v2 4/4] clk: qcom: gcc-ipq806x: remove cc_register

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Message-ID: <YtX2///aNWyhKpJn@builder.lan>
Date:   Mon, 18 Jul 2022 19:12:47 -0500
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Christian Marangi <ansuelsmth@...il.com>
Cc:     Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/4] clk: qcom: gcc-ipq806x: remove cc_register_board
 for pxo and cxo

On Wed 06 Jul 17:53 CDT 2022, Christian Marangi wrote:

> Now that these clock are defined as fixed clk in dts, we can drop the
> register_board_clk for cxo_board and pxo_board in gcc_ipq806x_probe.
> 

Are you trying to say, that now that we have .fw_name based lookup of
these clocks we don't need the globally registered [cp]xo clocks to
bridge towards the [cp]xo_board_clocks which was introduced in:

30fc4212d541 ("arm: dts: qcom: Add more board clocks")

I think this change would work out if you also replace .name = "pxo"
with .name = "pxo_board_clk" (and same for cxo)...


But I don't think we can just drop these, as it would break
compatibility with existing devicetree.

Regards,
Bjorn

> Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
> ---
>  drivers/clk/qcom/gcc-ipq806x.c | 8 --------
>  1 file changed, 8 deletions(-)
> 
> diff --git a/drivers/clk/qcom/gcc-ipq806x.c b/drivers/clk/qcom/gcc-ipq806x.c
> index 718de17a1e60..883629de2751 100644
> --- a/drivers/clk/qcom/gcc-ipq806x.c
> +++ b/drivers/clk/qcom/gcc-ipq806x.c
> @@ -3384,14 +3384,6 @@ static int gcc_ipq806x_probe(struct platform_device *pdev)
>  	struct regmap *regmap;
>  	int ret;
>  
> -	ret = qcom_cc_register_board_clk(dev, "cxo_board", "cxo", 25000000);
> -	if (ret)
> -		return ret;
> -
> -	ret = qcom_cc_register_board_clk(dev, "pxo_board", "pxo", 25000000);
> -	if (ret)
> -		return ret;
> -
>  	if (of_machine_is_compatible("qcom,ipq8065")) {
>  		ubi32_core1_src_clk.freq_tbl = clk_tbl_nss_ipq8065;
>  		ubi32_core2_src_clk.freq_tbl = clk_tbl_nss_ipq8065;
> -- 
> 2.36.1
>