Re: [RFC PATCH 0/2] Propose critical clocks

From: Peng Fan
Date: Tue Sep 13 2022 - 08:25:20 EST




On 9/13/2022 6:21 PM, Marco Felsch wrote:
Hi,

this proposal is to mark clocks as critical. It is somehow inspired by
the regulator-always-on property. Since sometimes we can end in circular
dependcies if we wanna solve the dependcies for a specific clock
provider.

The property is generic so it can be used by every hw clock provider. So
it can be seen as generic implementation to [1].

Thanks for working on a generic solution, I think your proposal could also help [1] and try to resolve same issue as [2].


[1] https://lore.kernel.org/all/CAJ+vNU1Za2CPGVX3q4HKufsxbL5zRrk1B5CWFpKritetrTs4dA@xxxxxxxxxxxxxx/
[2] https://lore.kernel.org/all/20220517235919.200375-1-marex@xxxxxxx/T/#m52d6d0831bf43d5f293e35cb27f3021f278d0564

Thanks,
Peng.



[1] https://lore.kernel.org/linux-clk/20220913092136.1706263-1-peng.fan@xxxxxxxxxxx/

Marco Felsch (2):
clk: add support for critical always-on clocks
arm64: dts: imx8mm-evk: mark 32k pmic clock as always-on

arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 1 +
drivers/clk/clk.c | 18 ++++++++++++++++++
2 files changed, 19 insertions(+)