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Thu, 30 Apr 2026 03:27:35 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Thu, 30 Apr 2026 11:27:34 +0100 Message-Id: From: "Alexey Klimov" To: "Alexey Klimov" , "Sam Protsenko" , , "Krzysztof Kozlowski" , "Peter Griffin" , =?utf-8?q?Andr=C3=A9_Draszik?= , "Conor Dooley" , "Alim Akhtar" Cc: "Tudor Ambarus" , "Rob Herring" , "Krzysztof Kozlowski" , , , Subject: Re: [PATCH v3 4/6] soc: samsung: exynos-pmu: add Exynos850 CPU hotplug support X-Mailer: aerc 0.20.0 References: <20260430-exynos850-cpuhotplug-v3-0-fd6251d02a17@linaro.org> <20260430-exynos850-cpuhotplug-v3-4-fd6251d02a17@linaro.org> In-Reply-To: <20260430-exynos850-cpuhotplug-v3-4-fd6251d02a17@linaro.org> On Thu Apr 30, 2026 at 2:56 AM BST, Alexey Klimov wrote: > Add cpuhotplug support for Exynos850 platforms. This SoC requires > its own specific set of writes/updates to PMU and PMU interrupts > generation block in order to put a CPU or a group of CPUs into > a different sleep states or prepare these entities for a CPU_OFF > or wake-up out of idle state or after CPU online. > Without these writes/updates the CPU(s) wake-up or online fails. > While at this, also add description of Exynos850 PMU registers. > > Signed-off-by: Alexey Klimov > --- > drivers/soc/samsung/Makefile | 2 +- > drivers/soc/samsung/exynos-pmu.c | 1 + > drivers/soc/samsung/exynos-pmu.h | 1 + > drivers/soc/samsung/exynos850-pmu.c | 79 +++++++++++++++++++++++= ++++++ [..] > +const struct exynos_pmu_data exynos850_pmu_data =3D { > + .pmu_cpuhp =3D true, > + .cpu_pmu_offline =3D exynos850_cpu_pmu_offline, > + .cpu_pmu_online =3D exynos850_cpu_pmu_online, > +}; > + Ah, sorry, I forgot to remove blank line here. Will do in the next update. BR, Alexey