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authorAllen-KH Cheng <allen-kh.cheng@mediatek.com>2023-01-17 04:40:22 +0300
committerWim Van Sebroeck <wim@linux-watchdog.org>2023-02-12 17:32:45 +0300
commit9b30eac1b35a448081165cd906daf939d8750bfb (patch)
treeb7d5fea3b9453c710a701cb4747d83317a2145f6 /Documentation/devicetree/bindings/watchdog
parentd2d11f342b179f1894a901f143ec7c008caba43e (diff)
downloadlinux-9b30eac1b35a448081165cd906daf939d8750bfb.tar.xz
dt-bindings: watchdog: mtk-wdt: Add reset-by-toprgu support
In some applications, the mtk-wdt requires the TOPRGU (Top Reset Generation Unit) to reset timer after system resets. Add optional mediatek,reset-by-toprgu property to enable it. Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230117014023.2993-2-allen-kh.cheng@mediatek.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'Documentation/devicetree/bindings/watchdog')
-rw-r--r--Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
index b3605608410c..55b34461df1b 100644
--- a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
@@ -52,6 +52,12 @@ properties:
description: Disable sending output reset signal
type: boolean
+ mediatek,reset-by-toprgu:
+ description: The Top Reset Generation Unit (TOPRGU) generates reset signals
+ and distributes them to each IP. If present, the watchdog timer will be
+ reset by TOPRGU once system resets.
+ type: boolean
+
'#reset-cells':
const: 1