[PATCH v5 5/7] dt-bindings: watchdog: mediatek: Convert mtk-wdt to json-schema

Allen-KH Cheng
2022-11-08T04:34:13Z

From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

Convert the MediaTek watchdog bindings to schema.

The original binding only had 4 without a fallback but there is a reset
controller on the "mediatek,mt7986-wdt", "mediatek,mt8186-wdt",
"mediatek,mt8188-wdt" and "mediatek,mt8195-wdt" Since there is no reset
controller for the mt6589, we remove "mediatek,mt6589-wdt" as a
fallback.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Co-developed-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
---
.../bindings/watchdog/mediatek,mtk-wdt.yaml | 78 +++++++++++++++++++
.../devicetree/bindings/watchdog/mtk-wdt.txt | 43 ----------
2 files changed, 78 insertions(+), 43 deletions(-)
create mode 100644 Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
delete mode 100644 Documentation/devicetree/bindings/watchdog/mtk-wdt.txt

diff --git a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
new file mode 100644
index 000000000000..b3d2273f323b
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/mediatek,mtk-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek SoCs Watchdog timer
+
+maintainers:
+ - Matthias Brugger <matthias.bgg@gmail.com>
+
+description:
+ The watchdog supports a pre-timeout interrupt that fires
+ timeout-sec/2 before the expiry.
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - mediatek,mt2712-wdt
+ - mediatek,mt6589-wdt
+ - mediatek,mt7986-wdt
+ - mediatek,mt8183-wdt
+ - mediatek,mt8186-wdt
+ - mediatek,mt8188-wdt
+ - mediatek,mt8192-wdt
+ - mediatek,mt8195-wdt
+ - items:
+ - enum:
+ - mediatek,mt2701-wdt
+ - mediatek,mt6582-wdt
+ - mediatek,mt6797-wdt
+ - mediatek,mt7622-wdt
+ - mediatek,mt7623-wdt
+ - mediatek,mt7629-wdt
+ - mediatek,mt8516-wdt
+ - const: mediatek,mt6589-wdt
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: Watchdog pre-timeout (bark) interrupt
+
+ mediatek,disable-extrst:
+ description: Disable sending output reset signal
+ type: boolean
+
+ '#reset-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ watchdog@10007000 {
+ compatible = "mediatek,mt8183-wdt";
+ reg = <0 0x10007000 0 0x100>;
+ interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_LOW>;
+ mediatek,disable-extrst;
+ timeout-sec = <10>;
+ #reset-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
deleted file mode 100644
index b900c85d4560..000000000000
--- a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
+++ /dev/null
@@ -1,43 +0,0 @@
-Mediatek SoCs Watchdog timer
-
-The watchdog supports a pre-timeout interrupt that fires timeout-sec/2
-before the expiry.
-
-Required properties:
-
-- compatible should contain:
- "mediatek,mt2701-wdt", "mediatek,mt6589-wdt": for MT2701
- "mediatek,mt2712-wdt": for MT2712
- "mediatek,mt6582-wdt", "mediatek,mt6589-wdt": for MT6582
- "mediatek,mt6589-wdt": for MT6589
- "mediatek,mt6797-wdt", "mediatek,mt6589-wdt": for MT6797
- "mediatek,mt7622-wdt", "mediatek,mt6589-wdt": for MT7622
- "mediatek,mt7623-wdt", "mediatek,mt6589-wdt": for MT7623
- "mediatek,mt7629-wdt", "mediatek,mt6589-wdt": for MT7629
- "mediatek,mt7986-wdt", "mediatek,mt6589-wdt": for MT7986
- "mediatek,mt8183-wdt": for MT8183
- "mediatek,mt8186-wdt", "mediatek,mt6589-wdt": for MT8186
- "mediatek,mt8188-wdt", "mediatek,mt6589-wdt": for MT8188
- "mediatek,mt8516-wdt", "mediatek,mt6589-wdt": for MT8516
- "mediatek,mt8192-wdt": for MT8192
- "mediatek,mt8195-wdt", "mediatek,mt6589-wdt": for MT8195
-
-- reg : Specifies base physical address and size of the registers.
-
-Optional properties:
-- mediatek,disable-extrst: disable send output reset signal
-- interrupts: Watchdog pre-timeout (bark) interrupt.
-- timeout-sec: contains the watchdog timeout in seconds.
-- #reset-cells: Should be 1.
-
-Example:
-
-watchdog: watchdog@10007000 {
- compatible = "mediatek,mt8183-wdt",
- "mediatek,mt6589-wdt";
- mediatek,disable-extrst;
- reg = <0 0x10007000 0 0x100>;
- interrupts = <GIC_SPI 139 IRQ_TYPE_NONE>;
- timeout-sec = <10>;
- #reset-cells = <1>;
-};
--
2.18.0