linux-kernel - Re: [PATCH v8 5/5] riscv: Enable PM_GENERIC

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Message-ID: <20250407-synergy-staff-b1cec90ffe72@spud>
Date: Mon, 7 Apr 2025 16:50:41 +0100
From: Conor Dooley <conor@...nel.org>
To: Drew Fustini <drew@...7.com>
Cc: Michal Wilczynski <m.wilczynski@...sung.com>, robh@...nel.org,
	krzk+dt@...nel.org, conor+dt@...nel.org, guoren@...nel.org,
	wefu@...hat.com, paul.walmsley@...ive.com, palmer@...belt.com,
	aou@...s.berkeley.edu, alex@...ti.fr, jszhang@...nel.org,
	ulf.hansson@...aro.org, m.szyprowski@...sung.com,
	linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v8 5/5] riscv: Enable PM_GENERIC_DOMAINS for T-Head SoCs

On Fri, Apr 04, 2025 at 11:55:17AM -0700, Drew Fustini wrote:
> On Tue, Mar 11, 2025 at 06:19:00PM +0100, Michal Wilczynski wrote:
> > T-Head SoCs feature separate power domains (power islands) for major
> > components like the GPU, Audio, and NPU. To manage the power states of
> > these components effectively, the kernel requires generic power domain
> > support.
> > 
> > This commit enables `CONFIG_PM_GENERIC_DOMAINS` for T-Head SoCs,
> > allowing the power domain driver for these components to be compiled and
> > integrated. This ensures proper power management and energy efficiency
> > on T-Head platforms.
> > 
> > By selecting `PM_GENERIC_DOMAINS`, we provide the necessary framework
> > for the power domain drivers to function correctly on RISC-V
> > architecture with T-Head SoCs.
> > 
> > Signed-off-by: Michal Wilczynski <m.wilczynski@...sung.com>
> > ---
> >  arch/riscv/Kconfig.socs | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs
> > index 1916cf7ba450..83833ded8908 100644
> > --- a/arch/riscv/Kconfig.socs
> > +++ b/arch/riscv/Kconfig.socs
> > @@ -53,6 +53,7 @@ config ARCH_THEAD
> >  	bool "T-HEAD RISC-V SoCs"
> >  	depends on MMU && !XIP_KERNEL
> >  	select ERRATA_THEAD
> > +	select PM_GENERIC_DOMAINS if PM
> >  	help
> >  	  This enables support for the RISC-V based T-HEAD SoCs.
> >  
> > -- 
> > 2.34.1
> > 
> 
> Reviewed-by: Drew Fustini <drew@...7.com>
> 
> Conor - would you be able to take this Kconfig.socs patch?

I can I suppose, sure.

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