Received-SPF: pass (google.com: domain of linux-kernel+bounces-80194-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) client-ip=147.75.48.161;
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Sylwester Nawrocki <s.nawrocki@samsung.com>, 
 Chanwoo Choi <cw00.choi@samsung.com>, 
 Sam Protsenko <semen.protsenko@linaro.org>
Cc: Alim Akhtar <alim.akhtar@samsung.com>, 
 Michael Turquette <mturquette@baylibre.com>, 
 Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>, 
 Conor Dooley <conor+dt@kernel.org>, Tomasz Figa <tomasz.figa@gmail.com>, 
 linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, 
 devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, 
 linux-kernel@vger.kernel.org
In-Reply-To: <20240224202053.25313-13-semen.protsenko@linaro.org>
References: <20240224202053.25313-1-semen.protsenko@linaro.org>
 <20240224202053.25313-13-semen.protsenko@linaro.org>
Subject: Re: (subset) [PATCH v3 12/15] clk: samsung: Add CPU clock support
 for Exynos850
Message-Id: <170887747270.215710.14391018888369319254.b4-ty@linaro.org>
Date: Sun, 25 Feb 2024 17:11:12 +0100
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit


On Sat, 24 Feb 2024 14:20:50 -0600, Sam Protsenko wrote:
> Implement CPU clock control for Exynos850 SoC. It follows the same
> procedure which is already implemented for other SoCs in clk-cpu.c:
> 
> 1. Set the correct rate for the alternate parent (if needed) before
>    switching to use it as the CPU clock
> 2. Switch to the alternate parent, so the CPU continues to get clocked
>    while the PLL is being re-configured
> 3. Adjust the dividers for the CPU related buses (ACLK, ATCLK, etc)
> 4. Re-configure the PLL for the new CPU clock rate. It's done
>    automatically, as the CPU clock rate change propagates to the PLL
>    clock, because the CPU clock has CLK_SET_RATE_PARENT flag set in
>    exynos_register_cpu_clock()
> 5. Once the PLL is locked, set it back as the CPU clock source
> 6. Set alternate parent clock rate back to max speed
> 
> [...]

Applied, thanks!

[12/15] clk: samsung: Add CPU clock support for Exynos850
        https://git.kernel.org/krzk/linux/c/61f4399c74d0677ee64e42f7b8d4ab01ee39de45

Best regards,
-- 
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>