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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Anand Moon <linux.amoon@gmail.com>,
	Sylwester Nawrocki <s.nawrocki@samsung.com>,
	Chanwoo Choi <cw00.choi@samsung.com>,
	Alim Akhtar <alim.akhtar@samsung.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	"open list:SAMSUNG SOC CLOCK DRIVERS"
	<linux-samsung-soc@vger.kernel.org>,
	"open list:COMMON CLK FRAMEWORK" <linux-clk@vger.kernel.org>,
	"moderated list:ARM/SAMSUNG S3C,
	S5P AND EXYNOS ARM ARCHITECTURES"
	<linux-arm-kernel@lists.infradead.org>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v1] clk: samsung: exynos5420: Add support for power control registers
Date: Fri, 10 Oct 2025 04:02:27 +0200	[thread overview]
Message-ID: <3a960143-ad3e-4c3a-88a7-48e69576caed@kernel.org> (raw)
In-Reply-To: <20250909180652.7130-1-linux.amoon@gmail.com>

On 09/09/2025 20:06, Anand Moon wrote:
> As per the Exynos5422 user manual, settings for the PWR_CTRL, PWR_CTRL2,
> PWR_CTRL_KFC, and PWR_CNTL_KFC registers manage ARM clock down and up
> configurations for idle and standby states.
> 
> The Exynos5422's dynamic clock frequency down feature enables automatic
> clock down when all CPU cores are in Wait For Event (WFE) or
> Wait For Interrupt (WFI) states, utilizing this feature in standby
> configurations.
> 
> These modifications enhance the power management capabilities of the
> Exynos542x by providing finer control over the ARM clock behavior in
> various states.

This seems reasonable, but I need more detailed tests and Tested-by.

Best regards,
Krzysztof

      reply	other threads:[~2025-10-10  2:02 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-09 18:06 Anand Moon
2025-10-10  2:02 ` Krzysztof Kozlowski [this message]

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