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Mon, 02 Feb 2026 20:35:32 -0800 (PST) X-Received: by 2002:a17:90b:4c:b0:34c:6d33:7d34 with SMTP id 98e67ed59e1d1-3543b33a1cdmr15504167a91.16.1770093332019; Mon, 02 Feb 2026 20:35:32 -0800 (PST) Received: from [10.151.37.217] ([202.46.23.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-35477615e32sm935276a91.4.2026.02.02.20.35.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Feb 2026 20:35:31 -0800 (PST) Message-ID: Date: Tue, 3 Feb 2026 10:05:26 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 5/5] arm64: dts: qcom: ipq5424: add support to get watchdog bootstatus from IMEM To: Mukesh Ojha , Dmitry Baryshkov Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Wim Van Sebroeck , Guenter Roeck , Rajendra Nayak , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org References: <20260130-wdt_reset_reason-v6-0-417ab789cd97@oss.qualcomm.com> <20260130-wdt_reset_reason-v6-5-417ab789cd97@oss.qualcomm.com> <5zqxloovexknbuhknbafc2trf66d6zwtvtkhjbchmbndxg2j6u@3giwqjkd2vl7> <20260202134402.ochfxv3lnju3dioa@hu-mojha-hyd.qualcomm.com> Content-Language: en-US From: Kathiravan Thirumoorthy In-Reply-To: <20260202134402.ochfxv3lnju3dioa@hu-mojha-hyd.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: C0D-tjPkaQ1c_9bvYigsVNHQjCRYOZDx X-Authority-Analysis: v=2.4 cv=VJ/QXtPX c=1 sm=1 tr=0 ts=69817b15 cx=c_pps a=UNFcQwm+pnOIJct1K4W+Mw==:117 a=j4ogTh8yFefVWWEFDRgCtg==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=qUomdUBryl06OQ5GzGYA:9 a=QEXdDO2ut3YA:10 a=uKXjsCUrEbL0IQVhDsJ9:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjAzMDAzNCBTYWx0ZWRfX+aEzw0CneU3t 0Iu7YZnB+x/NzTxB885hNe5eQ6oHVxuSAyOGhpqS1yTwJPcRj5V5ENkmFT5nv3D8np4QMqoNLAA bSpAKgZeavkbmOI9wpAFKnNGHN4P72TujGrzLvgrvI5U42p6dgeVARFqeQ/fF8IIuYNZynB3CxH +JMpAJnOx1iPVwXvmJEMZLDd82HI8kIGZHCfCfvlMw8z8sfhooqEXxAxWn2UjYXPKWl1YbCnmyc pHu6M9n9FPKMOcLe2tjwzeT0bCDRSO/QMpQtGs/bZ7TsUoYo7v6rNV5V0lMd2rdeP3FYLzhwSmC G5koGmkmHrCRxqGWUDpmN3/gAWrktwq7MWcdU9hl056GK/Db1lO7BEEdod1lX6cQj4OHaTHothE DwCGSkSAYsRI9dBMiXWYX95lBSQOA+MC2/RjdPyO3x9i0nrTwNbQMyuDHz/L5XKV/Y8OS5XEw7V 3WjxYgHYqoe6beI0e4Q== X-Proofpoint-GUID: C0D-tjPkaQ1c_9bvYigsVNHQjCRYOZDx X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-03_01,2026-02-02_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 adultscore=0 malwarescore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 phishscore=0 priorityscore=1501 impostorscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602030034 On 2/2/2026 7:14 PM, Mukesh Ojha wrote: > On Sat, Jan 31, 2026 at 10:18:29AM +0200, Dmitry Baryshkov wrote: >> On Fri, Jan 30, 2026 at 04:14:34PM +0530, Kathiravan Thirumoorthy wrote: >>> Add the "sram" property to the watchdog device node to enable >>> retrieval of the system restart reason from IMEM, populated by XBL. >>> Parse this information in the watchdog driver and update the bootstatus >>> sysFS if the restart was triggered by a watchdog timeout. >>> >>> Signed-off-by: Kathiravan Thirumoorthy >>> --- >>> Changes in v6: >>> - Update the 'sram' property to point to the SRAM region >>> Changes in v5: >>> - Rename the property 'qcom,imem' to 'sram' >>> Changes in v4: >>> - New patch >>> --- >>> arch/arm64/boot/dts/qcom/ipq5424.dtsi | 5 +++++ >>> 1 file changed, 5 insertions(+) >>> >> Reviewed-by: Dmitry Baryshkov > > I have a few more cookies (stored in a fixed IMEM location supported > downstream) that I want to add, and they are available on all Qualcomm > mobile SoCs. Should it be added under SMEM now? Mukesh, you mean SMEM or SRAM? Do we have the consumers in upstream for all those cookies? > > >> >> -- >> With best wishes >> Dmitry