linux-kernel - Re: [PATCH v5 1/3] clk: qcom: Allow constant ratio freq tables for rcg

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Date:   Mon, 04 Nov 2019 10:04:14 -0800
From:   Joe Perches <joe@...ches.com>
To:     Jeffrey Hugo <jeffrey.l.hugo@...il.com>,
        bjorn.andersson@...aro.org, mturquette@...libre.com,
        sboyd@...nel.org
Cc:     agross@...nel.org, marc.w.gonzalez@...e.fr,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 1/3] clk: qcom: Allow constant ratio freq tables for
 rcg

On Thu, 2019-10-31 at 11:57 -0700, Jeffrey Hugo wrote:
> Some RCGs (the gfx_3d_src_clk in msm8998 for example) are basically just
> some constant ratio from the input across the entire frequency range.  It
> would be great if we could specify the frequency table as a single entry
> constant ratio instead of a long list, ie:
> 
> 	{ .src = P_GPUPLL0_OUT_EVEN, .pre_div = 3 },
>         { }
> 
> So, lets support that.
[]
> diff --git a/drivers/clk/qcom/common.c b/drivers/clk/qcom/common.c
[]
> @@ -29,6 +29,9 @@ struct freq_tbl *qcom_find_freq(const struct freq_tbl *f, unsigned long rate)
>  	if (!f)
>  		return NULL;
>  
> +	if(!f->freq)
> +		return f;
> +

trivia:

Space after if before open parenthesis please.

Can you please make sure to style check your
code with checkpatch before submission?

Thanks.