From: Sudeep Holla <sudeep.holla@arm.com>
To: Ilia Lin <ilialin@codeaurora.org>,
vireshk@kernel.org, nm@ti.com, sboyd@kernel.org, robh@kernel.org,
mark.rutland@arm.com, rjw@rjwysocki.net,
linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: Sudeep Holla <sudeep.holla@arm.com>
Subject: Re: [PATCH v10 1/2] cpufreq: Add Kryo CPU scaling driver
Date: Wed, 23 May 2018 11:39:37 +0100 [thread overview]
Message-ID: <3f1ca60e-7aa8-fccc-ab1c-4b7c37731cce@arm.com> (raw)
In-Reply-To: <1527068454-28921-2-git-send-email-ilialin@codeaurora.org>
On 23/05/18 10:40, Ilia Lin wrote:
> In Certain QCOM SoCs like apq8096 and msm8996 that have KRYO processors,
> the CPU frequency subset and voltage value of each OPP varies
> based on the silicon variant in use. Qualcomm Process Voltage Scaling Tables
> defines the voltage and frequency value based on the msm-id in SMEM
> and speedbin blown in the efuse combination.
> The qcom-cpufreq-kryo driver reads the msm-id and efuse value from the SoC
> to provide the OPP framework with required information.
> This is used to determine the voltage and frequency value for each OPP of
> operating-points-v2 table when it is parsed by the OPP framework.
>
> Signed-off-by: Ilia Lin <ilialin@codeaurora.org>
[...]
> + pdev = platform_device_register_simple("cpufreq-dt", -1, NULL, 0);
> + if (!IS_ERR(pdev))
> + return 0;
> +
> + ret = PTR_ERR(pdev);
> + dev_err(cpu_dev, "Failed to register platform device\n");
> +
> +free_opp:
> + for_each_possible_cpu(cpu) {
> + if (IS_ERR_OR_NULL(opp_tables[cpu]))
> + break;
> + dev_pm_opp_put_supported_hw(opp_tables[cpu]);
> + }
> +free_np:
> + of_node_put(np);
> +
> + return ret;
> +}
> +late_initcall(qcom_cpufreq_kryo_driver_init);
Any particular reason why this *has* to be late initcall ?
Please change it to module_initcall otherwise.
Also address the of_node comments from Viresh.
Otherwise, it looks good.
--
Regards,
Sudeep
next prev parent reply other threads:[~2018-05-23 10:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-23 9:40 [PATCH v10 0/2] Kryo CPU scaling driver Ilia Lin
2018-05-23 9:40 ` [PATCH v10 1/2] cpufreq: Add " Ilia Lin
2018-05-23 10:03 ` Viresh Kumar
2018-05-23 10:39 ` Sudeep Holla [this message]
2018-05-23 11:06 ` ilialin
2018-05-23 11:31 ` Viresh Kumar
2018-05-23 11:34 ` ilialin
2018-05-23 11:46 ` Viresh Kumar
2018-05-23 11:47 ` ilialin
2018-05-23 11:51 ` Viresh Kumar
2018-05-23 9:40 ` [PATCH v10 2/2] dt-bindings: cpufreq: Document operating-points-v2-kryo-cpu Ilia Lin
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