linux-kernel - Re: [PATCH] dt-bindings: clock: qcom,a53pll: drop operating-points-v2

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Message-ID: <20230119031136.27vson2awemt3nkt@builder.lan>
Date:   Wed, 18 Jan 2023 21:11:36 -0600
From:   Bjorn Andersson <andersson@...nel.org>
To:     Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Cc:     Stephen Boyd <sboyd@...nel.org>, Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: clock: qcom,a53pll: drop operating-points-v2

On Wed, Jan 18, 2023 at 11:11:00AM -0800, Stephen Boyd wrote:
> Quoting Krzysztof Kozlowski (2023-01-15 06:35:23)
> > On 13/01/2023 21:28, Stephen Boyd wrote:
> > > Quoting Krzysztof Kozlowski (2023-01-13 06:58:59)
> > >> The CPU PLL clock node does not use OPP tables (neither driver).
> > > 
> > > What device is qcom_a53pll_get_freq_tbl() operating on?
> > 
> > On its own, internal table. While of course driver could be converted to
> > operating-points-v2, no one did it within last 5 years, so why it should
> > happen now?
> > 
> 
> The property was added mid 2021 by Shawn[1], that's not 5 years ago. I
> guess there were plans to add an OPP table that never happened[2]? Is
> Shawn still working on this? If not, we should revert the OPP code out
> of the driver.
> 

@Bryan, what do you think about this?

Thanks,
Bjorn

> [1] https://lore.kernel.org/all/20210704024032.11559-4-shawn.guo@linaro.org/
> [2] https://lore.kernel.org/all/20210709021334.GB11342@dragon/