Re: [PATCH v2 0/5] 0/6] arm64: meson-sm1: add support for DVFS

From: Kevin Hilman
Date: Tue Aug 27 2019 - 18:35:14 EST


Kevin Hilman <khilman@xxxxxxxxxxxx> writes:

> Jerome Brunet <jbrunet@xxxxxxxxxxxx> writes:
>
>> On Mon 26 Aug 2019 at 09:25, Neil Armstrong <narmstrong@xxxxxxxxxxxx> wrote:
>>
>>> Following DVFS support for the Amlogic G12A and G12B SoCs, this serie
>>> enables DVFS on the SM1 SoC for the SEI610 board.
>>>
>>> The SM1 Clock structure is slightly different because of the Cortex-A55
>>> core used, having the capability for each core of a same cluster to run
>>> at a different frequency thanks to the newly used DynamIQ Shared Unit.
>>>
>>> This is why SM1 has a CPU clock tree for each core and for DynamIQ Shared Unit,
>>> with a bypass mux to use the CPU0 instead of the dedicated trees.
>>>
>>> The DSU uses a new GP1 PLL as default clock, thus GP1 is added as read-only.
>>>
>>> The SM1 OPPs has been taken from the Amlogic Vendor tree, and unlike
>>> G12A only a single version of the SoC is available.
>>>
>>> Dependencies:
>>> - patch 6 is based on the "arm64: meson: add support for SM1 Power Domains" serie,
>>> but is not a strong dependency, it will work without
>>>
>>> Changes since v1:
>>> - exposed GP1, DSU and CPU 1,2,3 clock in patch 1
>>>
>>> Neil Armstrong (5):
>>> dt-bindings: clk: meson: add sm1 periph clock controller bindings
>>> clk: meson: g12a: add support for SM1 GP1 PLL
>>> clk: meson: g12a: add support for SM1 DynamIQ Shared Unit clock
>>> clk: meson: g12a: add support for SM1 CPU 1, 2 & 3 clocks
>>> arm64: dts: meson-sm1-sei610: enable DVFS
>>>
>>> .../bindings/clock/amlogic,gxbb-clkc.txt | 1 +
>>> .../boot/dts/amlogic/meson-sm1-sei610.dts | 59 +-
>>> arch/arm64/boot/dts/amlogic/meson-sm1.dtsi | 69 +++
>>> drivers/clk/meson/g12a.c | 544 ++++++++++++++++++
>>> drivers/clk/meson/g12a.h | 24 +-
>>> include/dt-bindings/clock/g12a-clkc.h | 5 +
>>> 6 files changed, 697 insertions(+), 5 deletions(-)
>>
>> Applied 1 to 4
>
> Will there be a stable tag I can use for that so I can apply patch 5?

Ah, I should've finished reading the list before asking. I now see your
clock PR. I'll use this tag[1] unless there's a different one I should
use.

Kevin

[1] git://github.com/BayLibre/clk-meson.git tags/clk-meson-v5.4-2