[PATCH v8 01/10] dt-bindings: soc: google: add google,gs101-dtzpc

André Draszik
2026-03-18T15:28:01Z

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.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: André Draszik <andre.draszik@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 000000000000..a8c61ce069d6
--- /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@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@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 6358dd7f1632..e8376343935f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10905,6 +10905,7 @@ 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/

--
2.53.0.851.ga537e3e6e9-goog