[PATCH v4 01/10] dt-bindings: soc: google: add google,gs101-dtzpc

André Draszik andre.draszik at linaro.org
Wed Jan 28 08:10:50 PST 2026


The Exynos Distributed TruztZone Protection Control (D_TZPC) provides
an interface to the protection bits that are included in the TrustZone
design in a secure system. It configures each area of the memory as
secure or non-secure.

Signed-off-by: André Draszik <andre.draszik at linaro.org>
---
 .../bindings/soc/google/google,gs101-dtzpc.yaml    | 42 ++++++++++++++++++++++
 MAINTAINERS                                        |  1 +
 2 files changed, 43 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/google/google,gs101-dtzpc.yaml b/Documentation/devicetree/bindings/soc/google/google,gs101-dtzpc.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..a8c61ce069d6910c47753bf14a792eb58e6ae182
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/google/google,gs101-dtzpc.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/google/google,gs101-dtzpc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos Distributed TruztZone Protection Control.
+
+description:
+  Distributed TrustZone Protection Control (D_TZPC) provides an interface to the
+  protection bits that are included in the TrustZone design in a secure system.
+  It configures each area of the memory as secure or non-secure.
+
+maintainers:
+  - André Draszik <andre.draszik at linaro.org>
+
+properties:
+  compatible:
+    const: google,gs101-dtzpc
+
+  clocks:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - clocks
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/google,gs101.h>
+
+    dtzpc_hsi0: dtzpc at 11010000 {
+      compatible = "google,gs101-dtzpc";
+      reg = <0x11010000 0x10000>;
+      clocks = <&cmu_hsi0 CLK_GOUT_HSI0_D_TZPC_HSI0_PCLK>;
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index a56f8f00aebb938aa765a8a6d66dfeb7f062dac8..98b2ef47c809ac0232e6941c9483b19d7c798bb4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10833,6 +10833,7 @@ P:	Documentation/process/maintainer-soc-clean-dts.rst
 C:	irc://irc.oftc.net/pixel6-kernel-dev
 F:	Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
 F:	Documentation/devicetree/bindings/phy/google,lga-usb-phy.yaml
+F:	Documentation/devicetree/bindings/soc/google/google,gs101-dtzpc.yaml
 F:	Documentation/devicetree/bindings/soc/google/google,gs101-pmu-intr-gen.yaml
 F:	Documentation/devicetree/bindings/usb/google,lga-dwc3.yaml
 F:	arch/arm64/boot/dts/exynos/google/

-- 
2.52.0.457.g6b5491de43-goog




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