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

From: Kevin Hilman
Date: Fri Aug 09 2019 - 13:55:35 EST


Jerome Brunet <jbrunet@xxxxxxxxxxxx> writes:

> On Thu 08 Aug 2019 at 14:18, Kevin Hilman <khilman@xxxxxxxxxxxx> wrote:
>
>> Neil Armstrong <narmstrong@xxxxxxxxxxxx> 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