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[34.91.210.221]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b935aec3243sm849355966b.53.2026.03.04.22.11.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Mar 2026 22:11:53 -0800 (PST) From: =?utf-8?q?Andr=C3=A9_Draszik?= Date: Thu, 05 Mar 2026 06:11:51 +0000 Subject: [PATCH v6 02/10] dt-bindings: power: samsung: add google,gs101-pd MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20260305-gs101-pd-v6-2-8cb953c1a723@linaro.org> References: <20260305-gs101-pd-v6-0-8cb953c1a723@linaro.org> In-Reply-To: <20260305-gs101-pd-v6-0-8cb953c1a723@linaro.org> To: Krzysztof Kozlowski , Alim Akhtar , Rob Herring , Conor Dooley , Krzysztof Kozlowski , Ulf Hansson , Liam Girdwood , Mark Brown Cc: Peter Griffin , Tudor Ambarus , Juan Yescas , Will McVicker , kernel-team@android.com, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, =?utf-8?q?Andr=C3=A9_Draszik?= X-Mailer: b4 0.14.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260304_221156_627278_6F8A4505 X-CRM114-Status: GOOD ( 13.65 ) 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 Add support for the Google gs101 version of the Exynos power domains. A new compatible is needed because register fields have changed and because power domain operations involve interfacing with the TrustZone protection control on newer Exynos SoCs. Power domains can also have a power supply linked to them, so add optional support for that, too. It is believed that all (existing) platforms could benefit from this, hence it's not being limited to gs101-pd. Reviewed-by: Rob Herring (Arm) Signed-off-by: André Draszik --- v5: - add domain-supply and update commit message v4: - add new vendor property samsung,dtzpc - drop previous tags due to that --- .../devicetree/bindings/power/pd-samsung.yaml | 33 ++++++++++++++++++++-- 1 file changed, 30 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/power/pd-samsung.yaml b/Documentation/devicetree/bindings/power/pd-samsung.yaml index 9c2c51133457..3f1a2dc17862 100644 --- a/Documentation/devicetree/bindings/power/pd-samsung.yaml +++ b/Documentation/devicetree/bindings/power/pd-samsung.yaml @@ -13,12 +13,10 @@ description: |+ Exynos processors include support for multiple power domains which are used to gate power to one or more peripherals on the processor. -allOf: - - $ref: power-domain.yaml# - properties: compatible: enum: + - google,gs101-pd - samsung,exynos4210-pd - samsung,exynos5433-pd @@ -33,6 +31,9 @@ properties: deprecated: true maxItems: 1 + domain-supply: + description: domain regulator supply. + label: description: Human readable string with domain name. Will be visible in userspace @@ -44,11 +45,28 @@ properties: power-domains: maxItems: 1 + samsung,dtzpc: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Distributed TrustZone Protection Control (DTZPC) node. + required: - compatible - "#power-domain-cells" - reg +allOf: + - $ref: power-domain.yaml# + - if: + not: + properties: + compatible: + contains: + const: google,gs101-pd + then: + properties: + samsung,dtzpc: false + unevaluatedProperties: false examples: @@ -66,3 +84,12 @@ examples: #power-domain-cells = <0>; label = "MFC"; }; + + power-domain@2080 { + compatible = "google,gs101-pd"; + reg = <0x2080 0x80>; + #power-domain-cells = <0>; + label = "hsi0"; + domain-supply = <&ldo7m>; + samsung,dtzpc = <&dtzpc_hsi0>; + }; -- 2.53.0.473.g4a7958ca14-goog