linux-kernel - [PATCH] arm64: dts: mt8173-oak: Switch to SMC watchdog

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Message-Id: <20220725082447.2613231-1-treapking@chromium.org>
Date:   Mon, 25 Jul 2022 16:24:47 +0800
From:   Pin-yen Lin <treapking@...omium.org>
To:     Matthias Brugger <matthias.bgg@...il.com>,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Hsin-Yi Wang <hsinyi@...omium.org>,
        Eizan Miyamoto <eizan@...omium.org>,
        Evan Benn <evanbenn@...omium.org>,
        Pin-yen Lin <treapking@...omium.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org
Subject: [PATCH] arm64: dts: mt8173-oak: Switch to SMC watchdog

Switch to SMC watchdog because we need direct control of HW watchdog
registers from kernel. The corresponding firmware was uploaded in
https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/3405.

Signed-off-by: Pin-yen Lin <treapking@...omium.org>
---

 arch/arm64/boot/dts/mediatek/mt8173.dtsi | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index a2aef5aa67c1..2d1c776740a5 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -528,10 +528,8 @@ power-domain@...173_POWER_DOMAIN_MFG {
 			};
 		};
 
-		watchdog: watchdog@...07000 {
-			compatible = "mediatek,mt8173-wdt",
-				     "mediatek,mt6589-wdt";
-			reg = <0 0x10007000 0 0x100>;
+		watchdog {
+			compatible = "arm,smc-wdt";
 		};
 
 		timer: timer@...08000 {
-- 
2.37.1.359.gd136c6c3e2-goog