linux-kernel - [tip: timers/clocksource] dt-bindings: timer: Add NXP System Timer Module

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Message-ID: <174784258593.406.9430531057971147561.tip-bot2@tip-bot2>
Date: Wed, 21 May 2025 15:49:45 -0000
From: "tip-bot2 for Daniel Lezcano" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Ghennadi Procopciuc <ghennadi.procopciuc@....nxp.com>,
 Thomas Fossati <thomas.fossati@...aro.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
 "Rob Herring (Arm)" <robh@...nel.org>,
 Daniel Lezcano <daniel.lezcano@...aro.org>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject:
 [tip: timers/clocksource] dt-bindings: timer: Add NXP System Timer Module

The following commit has been merged into the timers/clocksource branch of tip:

Commit-ID:     eec34ebb65aab20d2488808770b7f080104d4426
Gitweb:        https://git.kernel.org/tip/eec34ebb65aab20d2488808770b7f080104d4426
Author:        Daniel Lezcano <daniel.lezcano@...aro.org>
AuthorDate:    Thu, 17 Apr 2025 17:16:18 +02:00
Committer:     Daniel Lezcano <daniel.lezcano@...aro.org>
CommitterDate: Fri, 16 May 2025 11:10:32 +02:00

dt-bindings: timer: Add NXP System Timer Module

Add the System Timer Module description found on the NXP s32 platform
and the compatible for the s32g2 variant.

Cc: Ghennadi Procopciuc <ghennadi.procopciuc@....nxp.com>
Cc: Thomas Fossati <thomas.fossati@...aro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
Link: https://lore.kernel.org/r/20250417151623.121109-2-daniel.lezcano@linaro.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
---
 Documentation/devicetree/bindings/timer/nxp,s32g2-stm.yaml | 64 +++++++-
 1 file changed, 64 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/timer/nxp,s32g2-stm.yaml

diff --git a/Documentation/devicetree/bindings/timer/nxp,s32g2-stm.yaml b/Documentation/devicetree/bindings/timer/nxp,s32g2-stm.yaml
new file mode 100644
index 0000000..b44b979
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/nxp,s32g2-stm.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/nxp,s32g2-stm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP System Timer Module (STM)
+
+maintainers:
+  - Daniel Lezcano <daniel.lezcano@...nel.org>
+
+description:
+  The System Timer Module supports commonly required system and application
+  software timing functions. STM includes a 32-bit count-up timer and four
+  32-bit compare channels with a separate interrupt source for each channel.
+  The timer is driven by the STM module clock divided by an 8-bit prescale
+  value.
+
+properties:
+  compatible:
+    oneOf:
+      - const: nxp,s32g2-stm
+      - items:
+          - const: nxp,s32g3-stm
+          - const: nxp,s32g2-stm
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Counter clock
+      - description: Module clock
+      - description: Register clock
+
+  clock-names:
+    items:
+      - const: counter
+      - const: module
+      - const: register
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    timer@...1c000 {
+        compatible = "nxp,s32g2-stm";
+        reg = <0x4011c000 0x3000>;
+        interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&clks 0x3b>, <&clks 0x3c>, <&clks 0x3c>;
+        clock-names = "counter", "module", "register";
+    };