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Thu, 23 Jul 2026 08:29:52 -0700 (PDT) From: Alexey Klimov Date: Thu, 23 Jul 2026 16:29:46 +0100 Subject: [PATCH v2 1/2] dt-bindings: sram: Document samsung,exynos850-acpm-sram Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260723-exynos850_sram-v2-1-c94968e52f42@linaro.org> References: <20260723-exynos850_sram-v2-0-c94968e52f42@linaro.org> In-Reply-To: <20260723-exynos850_sram-v2-0-c94968e52f42@linaro.org> To: Sam Protsenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar , Peter Griffin Cc: Tudor Ambarus , linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.14.3 Document "samsung,exynos850-acpm-sram" which represents an SRAM region used for ACPM communication on Samsung-based SoCs. The SRAM is consumed as a whole, is not split up using child nodes and properties related to this are not required. Signed-off-by: Alexey Klimov --- Documentation/devicetree/bindings/sram/sram.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/sram/sram.yaml b/Documentati= on/devicetree/bindings/sram/sram.yaml index b83fc6831947..b9c4d4f3199b 100644 --- a/Documentation/devicetree/bindings/sram/sram.yaml +++ b/Documentation/devicetree/bindings/sram/sram.yaml @@ -43,6 +43,7 @@ properties: - qcom,rpm-msg-ram - qcom,shikra-imem - rockchip,rk3288-pmu-sram + - samsung,exynos850-acpm-sram =20 reg: maxItems: 1 @@ -159,6 +160,7 @@ if: enum: - qcom,rpm-msg-ram - rockchip,rk3288-pmu-sram + - samsung,exynos850-acpm-sram then: required: - "#address-cells" --=20 2.51.0 From nobody Fri Jul 24 05:23:26 2026 Received: from mail-wm1-f41.google.com (mail-wm1-f41.google.com [209.85.128.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3DF00448B9C for ; Thu, 23 Jul 2026 15:29:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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Thu, 23 Jul 2026 08:29:54 -0700 (PDT) Received: from [127.0.1.1] ([2.122.8.179]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49574653f83sm36952525e9.0.2026.07.23.08.29.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 Jul 2026 08:29:53 -0700 (PDT) From: Alexey Klimov Date: Thu, 23 Jul 2026 16:29:47 +0100 Subject: [PATCH v2 2/2] arm64: dts: exynos850: Add acpm SRAM node Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260723-exynos850_sram-v2-2-c94968e52f42@linaro.org> References: <20260723-exynos850_sram-v2-0-c94968e52f42@linaro.org> In-Reply-To: <20260723-exynos850_sram-v2-0-c94968e52f42@linaro.org> To: Sam Protsenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar , Peter Griffin Cc: Tudor Ambarus , linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.14.3 SRAM is used by the ACPM protocol to retrieve the ACPM channels information and configuration data. Add the SRAM node. Signed-off-by: Alexey Klimov --- arch/arm64/boot/dts/exynos/exynos850.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/exynos850.dtsi b/arch/arm64/boot/dt= s/exynos/exynos850.dtsi index 3881f573ec08..9a8d92aae9a8 100644 --- a/arch/arm64/boot/dts/exynos/exynos850.dtsi +++ b/arch/arm64/boot/dts/exynos/exynos850.dtsi @@ -917,6 +917,11 @@ spi_2: spi@11d20000 { }; }; }; + + apm_sram: sram@2039000 { + compatible =3D "samsung,exynos850-acpm-sram"; + reg =3D <0x0 0x2039000 0x40000>; + }; }; =20 #include "exynos850-pinctrl.dtsi" --=20 2.51.0