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

From: Jerome Brunet
Date: Fri Aug 09 2019 - 09:02:57 EST


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.

>
> Kevin