linux-kernel - Re: [PATCH v2 1/4] nvmem: rockchip-efuse: Change initcall to subsys

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Date:   Thu, 18 Aug 2016 13:28:58 -0500
From:   Kevin Hilman <khilman@...libre.com>
To:     Finlye Xiao <finley.xiao@...k-chips.com>
Cc:     srinivas.kandagatla@...aro.org, maxime.ripard@...e-electrons.com,
        heiko@...ech.de, robh+dt@...nel.org, frowand.list@...il.com,
        sre@...nel.org, dbaryshkov@...il.com, dwmw2@...radead.org,
        mark.rutland@....com, nm@...com, rjw@...ysocki.net,
        viresh.kumar@...aro.org, sboyd@...eaurora.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        wxt@...k-chips.com, jay.xu@...k-chips.com,
        rocky.hao@...k-chips.com, tim.chen@...k-chips.com,
        tony.xie@...k-chips.com, ulysses.huang@...k-chips.com,
        lin.huang@...k-chips.com
Subject: Re: [PATCH v2 1/4] nvmem: rockchip-efuse: Change initcall to subsys

Finlye Xiao <finley.xiao@...k-chips.com> writes:

> From: Finley Xiao <finley.xiao@...k-chips.com>
>
> We will register a cpufreq notifier for adjusting opp's voltage, and it
> need to fetch cpu's leakage from efuse in the notifier_call. so the efuse
> driver should probe before cpufreq driver.
>
> Signed-off-by: Finley Xiao <finley.xiao@...k-chips.com>

Why can't this be handled with deferred probling?  initcall ordering is
a can of worms.

Kevin