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Date: Tue, 13 Apr 2021 19:27:21 -0500
From: Nishanth Menon <nm@...com>
To: Jassi Brar <jassisinghbrar@...il.com>,
Rob Herring <robh+dt@...nel.org>
CC: Santosh Shilimkar <ssantosh@...nel.org>, <s-anna@...com>,
<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, Nishanth Menon <nm@...com>
Subject: [PATCH] dt-bindings: mailbox: ti,message-manager: Convert to yaml
Convert the ti,secure-proxy 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@...com>
---
Depending on how [1] turns out in discussion, we might want to queue [2]
appropriately.
[1] https://lore.kernel.org/linux-arm-kernel/CAK8P3a1L8rWpR5b66v6Su8-m7-scA0wZQr_g_4KnV4dnrky6ZA@mail.gmail.com/
[2] https://lore.kernel.org/linux-arm-kernel/20210414001926.20002-1-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
diff --git a/Documentation/devicetree/bindings/mailbox/ti,message-manager.txt b/Documentation/devicetree/bindings/mailbox/ti,message-manager.txt
deleted file mode 100644
index ebf0e3710cee..000000000000
--- a/Documentation/devicetree/bindings/mailbox/ti,message-manager.txt
+++ /dev/null
@@ -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@...0000 {
- 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>;
- [...]
- };
diff --git a/Documentation/devicetree/bindings/mailbox/ti,message-manager.yaml b/Documentation/devicetree/bindings/mailbox/ti,message-manager.yaml
new file mode 100644
index 000000000000..4987e803ac37
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/ti,message-manager.yaml
@@ -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 Driver
+
+maintainers:
+ - Nishanth Menon <nm@...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@...0000 {
+ 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>;
+ };
--
2.31.0
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