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[34.91.210.221]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b942ef8c95csm42907266b.21.2026.03.06.02.29.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Mar 2026 02:29:55 -0800 (PST) From: =?utf-8?q?Andr=C3=A9_Draszik?= Date: Fri, 06 Mar 2026 10:29:53 +0000 Subject: [PATCH v7 02/10] dt-bindings: power: samsung: add google,gs101-pd 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: <20260306-gs101-pd-v7-2-03f7c7965ba5@linaro.org> References: <20260306-gs101-pd-v7-0-03f7c7965ba5@linaro.org> In-Reply-To: <20260306-gs101-pd-v7-0-03f7c7965ba5@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 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: Andr=C3=A9 Draszik Reviewed-by: Peter Griffin --- 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/Docu= mentation/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 u= sed to gate power to one or more peripherals on the processor. =20 -allOf: - - $ref: power-domain.yaml# - properties: compatible: enum: + - google,gs101-pd - samsung,exynos4210-pd - samsung,exynos5433-pd =20 @@ -33,6 +31,9 @@ properties: deprecated: true maxItems: 1 =20 + 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 =20 + samsung,dtzpc: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Distributed TrustZone Protection Control (DTZPC) node. + required: - compatible - "#power-domain-cells" - reg =20 +allOf: + - $ref: power-domain.yaml# + - if: + not: + properties: + compatible: + contains: + const: google,gs101-pd + then: + properties: + samsung,dtzpc: false + unevaluatedProperties: false =20 examples: @@ -66,3 +84,12 @@ examples: #power-domain-cells =3D <0>; label =3D "MFC"; }; + + power-domain@2080 { + compatible =3D "google,gs101-pd"; + reg =3D <0x2080 0x80>; + #power-domain-cells =3D <0>; + label =3D "hsi0"; + domain-supply =3D <&ldo7m>; + samsung,dtzpc =3D <&dtzpc_hsi0>; + }; --=20 2.53.0.473.g4a7958ca14-goog