deleted file mode 100644
@@ -1,31 +0,0 @@
-OP-TEE Device Tree Bindings
-
-OP-TEE is a piece of software using hardware features to provide a Trusted
-Execution Environment. The security can be provided with ARM TrustZone, but
-also by virtualization or a separate chip.
-
-We're using "linaro" as the first part of the compatible property for
-the reference implementation maintained by Linaro.
-
-* OP-TEE based on ARM TrustZone required properties:
-
-- compatible : should contain "linaro,optee-tz"
-
-- method : The method of calling the OP-TEE Trusted OS. Permitted
- values are:
-
- "smc" : SMC #0, with the register assignments specified
- in drivers/tee/optee/optee_smc.h
-
- "hvc" : HVC #0, with the register assignments specified
- in drivers/tee/optee/optee_smc.h
-
-
-
-Example:
- firmware {
- optee {
- compatible = "linaro,optee-tz";
- method = "smc";
- };
- };
new file mode 100644
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/firmware/linaro,optee-tz.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OP-TEE Device Tree Bindings
+
+maintainers:
+ - Jens Wiklander <jens.wiklander@linaro.org>
+
+description: |
+ OP-TEE is a piece of software using hardware features to provide a Trusted
+ Execution Environment. The security can be provided with ARM TrustZone, but
+ also by virtualization or a separate chip.
+
+ We're using "linaro" as the first part of the compatible property for
+ the reference implementation maintained by Linaro.
+
+properties:
+ $nodename:
+ const: optee
+
+ compatible:
+ const: linaro,optee-tz
+
+ method:
+ enum: [smc, hvc]
+ description: |
+ The method of calling the OP-TEE Trusted OS depending on smc or hvc
+ instruction usage.
+ SMC #0, register assignments
+ or
+ HVC #0, register assignments
+ register assignments are specified in drivers/tee/optee/optee_smc.h
+
+required:
+ - compatible
+ - method
+
+additionalProperties: false
+
+examples:
+ - |
+ firmware {
+ optee {
+ compatible = "linaro,optee-tz";
+ method = "smc";
+ };
+ };
+
+ - |
+ firmware {
+ optee {
+ compatible = "linaro,optee-tz";
+ method = "hvc";
+ };
+ };
Convert linaro,optee-tz to json schema format for better documentation and error checks. NOTE: This change does introduce a stricter naming convention for optee nodes. Signed-off-by: Nishanth Menon <nm@ti.com> --- Changes since v1: * Dropped un-necessary quotes around compatible * Converted the method to enum, updated description as well * Updated commit message to drop the 'checkpatch warning' V1: https://lore.kernel.org/linux-arm-kernel/20210416222518.15801-1-nm@ti.com/ .../bindings/arm/firmware/linaro,optee-tz.txt | 31 ---------- .../arm/firmware/linaro,optee-tz.yaml | 58 +++++++++++++++++++ 2 files changed, 58 insertions(+), 31 deletions(-) delete mode 100644 Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.txt create mode 100644 Documentation/devicetree/bindings/arm/firmware/linaro,optee-tz.yaml