linux-kernel - Re: [PATCH v2 0/4] clk: meson: g12a: add support for DVFS

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Message-ID: <7h8ss24419.fsf@baylibre.com>
Date:   Fri, 09 Aug 2019 10:55:30 -0700
From:   Kevin Hilman <khilman@...libre.com>
To:     Jerome Brunet <jbrunet@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>, sboyd@...nel.org
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 0/4] clk: meson: g12a: add support for DVFS

Jerome Brunet <jbrunet@...libre.com> writes:

> On Thu 08 Aug 2019 at 14:18, Kevin Hilman <khilman@...libre.com> wrote:
>
>> Neil Armstrong <narmstrong@...libre.com> writes:
>>
>>> The G12A/G12B Socs embeds a specific clock tree for each CPU cluster :
>>> cpu_clk / cpub_clk
>>> |   \- cpu_clk_dyn
>>> |      |  \- cpu_clk_premux0
>>> |      |        |- cpu_clk_postmux0
>>> |      |        |    |- cpu_clk_dyn0_div
>>> |      |        |    \- xtal/fclk_div2/fclk_div3
>>> |      |        \- xtal/fclk_div2/fclk_div3
>>> |      \- cpu_clk_premux1
>>> |            |- cpu_clk_postmux1
>>> |            |    |- cpu_clk_dyn1_div
>>> |            |    \- xtal/fclk_div2/fclk_div3
>>> |            \- xtal/fclk_div2/fclk_div3
>>> \ sys_pll / sys1_pll
>>>
>>> This patchset adds notifiers on cpu_clk / cpub_clk, cpu_clk_dyn,
>>> cpu_clk_premux0 and sys_pll / sys1_pll to permit change frequency of
>>> the CPU clock in a safe way as recommended by the vendor Documentation
>>> and reference code.
>>>
>>> This patchset :
>>> - introduces needed core and meson clk changes
>>> - adds the clock notifiers
>>>
>>> Dependencies:
>>> - None
>>
>> nit: this doesn't apply to v5.3-rc, but appears to apply on
>> clk-meson/v5.4/drivers, so it appears to be dependent on the cleanups
>> from Alex.
>
> Indeed, Applied on top of this.
>

Please let me know when you have a stable tag for this.  I wont' be able
to apply the odroid-n2 DVFS patch until I have this.

Kevin