deleted file mode 100644
@@ -1,50 +0,0 @@
-Texas Instruments' Message Manager Driver
-========================================
-
-The Texas Instruments' Message Manager is a mailbox controller that has
-configurable queues selectable at SoC(System on Chip) integration. The Message
-manager is broken up into queues in different address regions that are called
-"proxies" - each instance is unidirectional and is instantiated at SoC
-integration level to indicate receive or transmit path.
-
-Message Manager Device Node:
-===========================
-Required properties:
---------------------
-- compatible: Shall be: "ti,k2g-message-manager"
-- reg-names queue_proxy_region - Map the queue proxy region.
- queue_state_debug_region - Map the queue state debug
- region.
-- reg: Contains the register map per reg-names.
-- #mbox-cells Shall be 2. Contains the queue ID and proxy ID in that
- order referring to the transfer path.
-- interrupt-names: Contains interrupt names matching the rx transfer path
- for a given SoC. Receive interrupts shall be of the
- format: "rx_<QID>".
- For ti,k2g-message-manager, this shall contain:
- "rx_005", "rx_057"
-- interrupts: Contains the interrupt information corresponding to
- interrupt-names property.
-
-Example(K2G):
-------------
-
- msgmgr: msgmgr@2a00000 {
- compatible = "ti,k2g-message-manager";
- #mbox-cells = <2>;
- reg-names = "queue_proxy_region", "queue_state_debug_region";
- reg = <0x02a00000 0x400000>, <0x028c3400 0x400>;
- interrupt-names = "rx_005", "rx_057";
- interrupts = <GIC_SPI 324 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 327 IRQ_TYPE_LEVEL_HIGH>;
- };
-
- pmmc: pmmc {
- [...]
- mbox-names = "rx", "tx";
- # RX queue ID is 5, proxy ID is 2
- # TX queue ID is 0, proxy ID is 0
- mboxes= <&msgmgr 5 2>,
- <&msgmgr 0 0>;
- [...]
- };
new file mode 100644
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mailbox/ti,message-manager.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments' message manager node bindings
+
+maintainers:
+ - Nishanth Menon <nm@ti.com>
+
+description: |
+ The Texas Instruments' Message Manager is a mailbox controller that has
+ configurable queues selectable at SoC(System on Chip) integration. The Message
+ manager is broken up into queues in different address regions that are called
+ "proxies" - each instance is unidirectional and is instantiated at SoC
+ integration level to indicate receive or transmit path.
+
+properties:
+ $nodename:
+ pattern: "^mailbox@[0-9a-f]+$"
+
+ compatible:
+ const: ti,k2g-message-manager
+
+ "#mbox-cells":
+ const: 2
+ description:
+ Contains the queue ID and proxy ID in that order referring to the
+ transfer path.
+
+ reg-names:
+ items:
+ - const: queue_proxy_region
+ - const: queue_state_debug_region
+
+ reg:
+ minItems: 2
+
+ interrupt-names:
+ items:
+ - const: rx_005
+ - const: rx_057
+ description:
+ Contains interrupt names matching the Rx transfer path for a given SoC.
+ Receive interrupts shall be of the format "rx_<QID>".
+
+ interrupts:
+ minItems: 2
+ description:
+ Contains the interrupt information for the Rx interrupt paths for message
+ manager corresponding to the interrupt-names.
+
+required:
+ - compatible
+ - reg-names
+ - reg
+ - interrupt-names
+ - interrupts
+ - "#mbox-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ msgmgr: mailbox@2a00000 {
+ compatible = "ti,k2g-message-manager";
+ #mbox-cells = <2>;
+ reg-names = "queue_proxy_region", "queue_state_debug_region";
+ reg = <0x02a00000 0x400000>, <0x028c3400 0x400>;
+ interrupt-names = "rx_005", "rx_057";
+ interrupts = <GIC_SPI 324 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 327 IRQ_TYPE_LEVEL_HIGH>;
+ };
Convert the ti,message-manager to yaml for better checks and documentation. Differences being mostly in the examples: - I've dropped the example usage of mailbox client, it is better done in tisci node definition - included header in example for buildable example NOTE: The following checkpatch warning is generated since we do include the header in the example, but this is a false positive warning. WARNING: DT binding docs and includes should be a separate patch. See: Documentation/devicetree/bindings/submitting-patches.rst Signed-off-by: Nishanth Menon <nm@ti.com> --- Changes since v1: - Fixed title in yaml (not driver) - Commit message update to fix up a copy paste error (not secure-proxy). - Subject line rewording to indicate json schema rather than yaml - more inline with patches elsewhere. V1: https://lore.kernel.org/linux-arm-kernel/20210414002721.23638-1-nm@ti.com/ .../bindings/mailbox/ti,message-manager.txt | 50 ------------- .../bindings/mailbox/ti,message-manager.yaml | 75 +++++++++++++++++++ 2 files changed, 75 insertions(+), 50 deletions(-) delete mode 100644 Documentation/devicetree/bindings/mailbox/ti,message-manager.txt create mode 100644 Documentation/devicetree/bindings/mailbox/ti,message-manager.yaml