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Tue, 29 Sep 2026 02:02:22 -0700 (PDT) Received: from [10.11.12.111] ([79.115.63.240]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48af5058c52sm2748227f8f.19.2026.09.29.02.02.21 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 29 Sep 2026 02:02:21 -0700 (PDT) Message-ID: <7b5dded4-c475-40dd-b5c4-5086bab4162e@linaro.org> Date: Tue, 29 Sep 2026 12:02:18 +0300 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] arm64: dts: exynos850: Add ACPM firmware node To: Alexey Klimov , Sam Protsenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Peter Griffin , Alim Akhtar Cc: Thomas Turner , linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260929-exynos850-acpm-node-cpufreq-v1-0-5a86c1d404b8@linaro.org> <20260929-exynos850-acpm-node-cpufreq-v1-1-5a86c1d404b8@linaro.org> Content-Language: en-US From: Tudor Ambarus In-Reply-To: <20260929-exynos850-acpm-node-cpufreq-v1-1-5a86c1d404b8@linaro.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260929_020224_822918_99250CB5 X-CRM114-Status: GOOD ( 15.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, Alexey, On 9/29/26 6:10 AM, Alexey Klimov wrote: > Add the ACPM firmware node with cpucl0 and cpucl1 clocks. ACPM firmware > protocol provides interface for all client drivers to actually use > features exposed by the APM co-processor. > > Signed-off-by: Alexey Klimov > --- > arch/arm64/boot/dts/exynos/exynos850.dtsi | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > > diff --git a/arch/arm64/boot/dts/exynos/exynos850.dtsi b/arch/arm64/boot/dts/exynos/exynos850.dtsi > index 8a4771899a8e..91c6cee8f483 100644 > --- a/arch/arm64/boot/dts/exynos/exynos850.dtsi > +++ b/arch/arm64/boot/dts/exynos/exynos850.dtsi > @@ -11,6 +11,7 @@ > */ > > #include > +#include > #include > #include > > @@ -170,6 +171,18 @@ timer: timer { > ; > }; > > + firmware { > + acpm_ipc: power-management { > + compatible = "samsung,exynos850-acpm-ipc"; > + mboxes = <&ap2apm_mailbox>; > + shmem = <&apm_sram>; > + clocks = <&cmu_cpucl0 CLK_FOUT_CPUCL0_PLL>, > + <&cmu_cpucl1 CLK_FOUT_CPUCL1_PLL>; Why do you describe these clocks? Thanks, ta > + clock-names = "cpucl0", "cpucl1"; > + #clock-cells = <1>; > + }; > + }; > + > soc: soc@0 { > compatible = "simple-bus"; > #address-cells = <1>; >