linux-kernel - Re: [PATCH v6 09/18] clk: qcom: krait-cc: drop pr

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Date:   Wed, 13 Apr 2022 22:40:39 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Ansuel Smith <ansuelsmth@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-clk@...r.kernel.org
Subject: Re: [PATCH v6 09/18] clk: qcom: krait-cc: drop pr_info and register
 qsb only if needed

On 22/03/2022 02:15, Ansuel Smith wrote:
> Replace pr_info() with dev_info() to provide better diagnostics.
> Register qsb fixed clk only if it's not declared in DTS.

This can be split into two patches

> 
> Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
> ---
>   drivers/clk/qcom/krait-cc.c | 12 +++++++-----
>   1 file changed, 7 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/clk/qcom/krait-cc.c b/drivers/clk/qcom/krait-cc.c
> index 645ad9e8dd73..e9508e3104ea 100644
> --- a/drivers/clk/qcom/krait-cc.c
> +++ b/drivers/clk/qcom/krait-cc.c
> @@ -308,7 +308,9 @@ static int krait_cc_probe(struct platform_device *pdev)
>   		return -ENODEV;
>   
>   	/* Rate is 1 because 0 causes problems for __clk_mux_determine_rate */
> -	clk = clk_register_fixed_rate(dev, "qsb", NULL, 0, 1);
> +	if (IS_ERR(clk_get(dev, "qsb")))
> +		clk = clk_register_fixed_rate(dev, "qsb", NULL, 0, 1);
> +
>   	if (IS_ERR(clk))
>   		return PTR_ERR(clk);
>   
> @@ -363,25 +365,25 @@ static int krait_cc_probe(struct platform_device *pdev)
>   	cur_rate = clk_get_rate(l2_pri_mux_clk);
>   	aux_rate = 384000000;
>   	if (cur_rate == 1) {
> -		pr_info("L2 @ QSB rate. Forcing new rate.\n");
> +		dev_info(dev, "L2 @ QSB rate. Forcing new rate.\n");
>   		cur_rate = aux_rate;
>   	}
>   	clk_set_rate(l2_pri_mux_clk, aux_rate);
>   	clk_set_rate(l2_pri_mux_clk, 2);
>   	clk_set_rate(l2_pri_mux_clk, cur_rate);
> -	pr_info("L2 @ %lu KHz\n", clk_get_rate(l2_pri_mux_clk) / 1000);
> +	dev_info(dev, "L2 @ %lu KHz\n", clk_get_rate(l2_pri_mux_clk) / 1000);
>   	for_each_possible_cpu(cpu) {
>   		clk = clks[cpu];
>   		cur_rate = clk_get_rate(clk);
>   		if (cur_rate == 1) {
> -			pr_info("CPU%d @ QSB rate. Forcing new rate.\n", cpu);
> +			dev_info(dev, "CPU%d @ QSB rate. Forcing new rate.\n", cpu);
>   			cur_rate = aux_rate;
>   		}
>   
>   		clk_set_rate(clk, aux_rate);
>   		clk_set_rate(clk, 2);
>   		clk_set_rate(clk, cur_rate);
> -		pr_info("CPU%d @ %lu KHz\n", cpu, clk_get_rate(clk) / 1000);
> +		dev_info(dev, "CPU%d @ %lu KHz\n", cpu, clk_get_rate(clk) / 1000);
>   	}
>   
>   	of_clk_add_provider(dev->of_node, krait_of_get, clks);


-- 
With best wishes
Dmitry