linux-kernel - Re: [PATCH v3 02/15] clk: qcom: Use qcom_branch_set_clk

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Date: Wed, 20 Dec 2023 13:16:52 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Johan Hovold <johan@...nel.org>
Cc: Bjorn Andersson <andersson@...nel.org>, Andy Gross <agross@...nel.org>,
 Michael Turquette <mturquette@...libre.com>, Stephen Boyd
 <sboyd@...nel.org>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Marijn Suijten <marijn.suijten@...ainline.org>,
 linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Subject: Re: [PATCH v3 02/15] clk: qcom: Use qcom_branch_set_clk_en()

On 20.12.2023 09:25, Johan Hovold wrote:
> On Wed, Dec 20, 2023 at 01:30:43AM +0100, Konrad Dybcio wrote:
>> Instead of magically poking at the bit0 of branch clocks' CBCR, use
>> the newly introduced helper.
>>
>> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> 
>> diff --git a/drivers/clk/qcom/gcc-sc8280xp.c b/drivers/clk/qcom/gcc-sc8280xp.c
>> index bfb77931e868..1ba78990b9f4 100644
>> --- a/drivers/clk/qcom/gcc-sc8280xp.c
>> +++ b/drivers/clk/qcom/gcc-sc8280xp.c
>> @@ -7543,21 +7543,15 @@ static int gcc_sc8280xp_probe(struct platform_device *pdev)
>>  		goto err_put_rpm;
>>  	}
>>  
>> -	/*
>> -	 * Keep the clocks always-ON
> 
> I think you should keep this part of the comment in some form
> throughout, for example:
> 
> 	/* Keep some clocks always on */
> 	qcom_branch_set_clk_en(...);
> 	...
That's a good idea, it may not be entirely obvious for first-time
readers. I'll include this.

Konrad