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Subject: Re: [RFC PATCH 4/9] opp: core: Don't warn if required OPP device does
 not exist
To:     Viresh Kumar <viresh.kumar@linaro.org>,
        Ulf Hansson <ulf.hansson@linaro.org>
Cc:     Sibi Sankar <sibis@codeaurora.org>,
        Saravana Kannan <saravanak@google.com>,
        linux-arm-kernel@lists.infradead.org,
        Alyssa Rosenzweig <alyssa@rosenzweig.io>,
        Sven Peter <sven@svenpeter.dev>, Marc Zyngier <maz@kernel.org>,
        Mark Kettenis <mark.kettenis@xs4all.nl>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
        Viresh Kumar <vireshk@kernel.org>, Nishanth Menon <nm@ti.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Kevin Hilman <khilman@kernel.org>, linux-clk@vger.kernel.org,
        devicetree@vger.kernel.org, linux-pm@vger.kernel.org,
        linux-kernel@vger.kernel.org
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From:   Hector Martin <marcan@marcan.st>
Message-ID: <039b77f3-d10e-bd7a-a594-b951a98bdd45@marcan.st>
Date:   Thu, 14 Oct 2021 16:03:36 +0900
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On 14/10/2021 15.56, Viresh Kumar wrote:
>> +	/*
>> +	 * Attach the CPU device to its genpd domain (if any), to allow OPP
>> +	 * dependencies to be satisfied.
>> +	 */
>> +	ret = genpd_dev_pm_attach(cpu_dev);
>> +	if (ret <= 0) {
>> +		dev_err(cpu_dev, "Failed to attach CPU device to genpd\n");
>> +		goto out;
>> +	}
>> +
> 
> Other platform do this from some other place I think.
> 
> Ulf, where should this code be moved ? cpu-clk driver ?
> 

I see one driver that does this is drivers/clk/qcom/apcs-sdx55.c (via 
dev_pm_domain_attach). Though it only does it for CPU#0; we need to do 
it for all CPUs.

-- 
Hector Martin (marcan@marcan.st)
Public Key: https://mrcn.st/pub