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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3057cb5a823sm10480846a91.34.2025.04.08.01.50.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Apr 2025 01:50:23 -0700 (PDT) From: Kathiravan Thirumoorthy Date: Tue, 08 Apr 2025 14:19:56 +0530 Subject: [PATCH RFC 6/6] arm64: dts: qcom: ipq5424: add node for the restart reason information Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250408-wdt_reset_reason-v1-6-e6ec30c2c926@oss.qualcomm.com> References: <20250408-wdt_reset_reason-v1-0-e6ec30c2c926@oss.qualcomm.com> In-Reply-To: <20250408-wdt_reset_reason-v1-0-e6ec30c2c926@oss.qualcomm.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Wim Van Sebroeck , Guenter Roeck Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, Kathiravan Thirumoorthy X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1744102197; l=873; i=kathiravan.thirumoorthy@oss.qualcomm.com; s=20230906; h=from:subject:message-id; bh=M8s7BxCEMIKIVssuhwE1Qzjds3ely+Ku4yT4Ok75T/I=; b=f8fhhU7k1xmVdNeYHDyzwFQAKC3YeDSuh8ItfvAVxu80upvicUEB4pbPW2s1FggobjsQtzrWV oe9GPtl/D1DBBF6a4pqG7f6XHIFt3k2MVzMl9mR1RHAp2R291G5zKfq X-Developer-Key: i=kathiravan.thirumoorthy@oss.qualcomm.com; a=ed25519; pk=xWsR7pL6ch+vdZ9MoFGEaP61JUaRf0XaZYWztbQsIiM= X-Proofpoint-ORIG-GUID: _fhZHPcVvrogKAPFQbOg8CSImU0Baw_k X-Proofpoint-GUID: _fhZHPcVvrogKAPFQbOg8CSImU0Baw_k X-Authority-Analysis: v=2.4 cv=NaLm13D4 c=1 sm=1 tr=0 ts=67f4e35d cx=c_pps a=rz3CxIlbcmazkYymdCej/Q==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=XR8D0OoHHMoA:10 a=EUspDBNiAAAA:8 a=-3m3cBowUQCSrRBqnYEA:9 a=QEXdDO2ut3YA:10 a=bFCP_H2QrGi7Okbo017w:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-08_03,2025-04-07_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 impostorscore=0 priorityscore=1501 adultscore=0 malwarescore=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 mlxlogscore=862 clxscore=1015 phishscore=0 spamscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2504080063 Add a child node to the IMEM region to capture the system restart reason in Qualcomm IPQ SoCs. This information is populated by the WDT driver via bootstatus sysfs. Signed-off-by: Kathiravan Thirumoorthy --- arch/arm64/boot/dts/qcom/ipq5424.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/ipq5424.dtsi b/arch/arm64/boot/dts/qcom/ipq5424.dtsi index a772736f314f46d11c473160c522af4edeb900b7..d399ae506748b22c1dc653d357c6fd071dd67f04 100644 --- a/arch/arm64/boot/dts/qcom/ipq5424.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq5424.dtsi @@ -493,6 +493,11 @@ sram@8600000 { #address-cells = <1>; #size-cells = <1>; + + restart-reason@7b0 { + compatible = "qcom,restart-reason-info"; + reg = <0x7b0 0x4>; + }; }; usb3: usb3@8a00000 { -- 2.34.1