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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ad52d438c1bsm756346466b.95.2025.05.20.09.00.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 20 May 2025 09:00:53 -0700 (PDT) Message-ID: <37bd619d-242e-4488-8d45-c2c85612bee9@oss.qualcomm.com> Date: Tue, 20 May 2025 18:00:49 +0200 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 v4 3/5] dt-bindings: watchdog: qcom-wdt: Document qcom,imem property To: Krzysztof Kozlowski , Kathiravan Thirumoorthy 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: <20250519-wdt_reset_reason-v4-0-d59d21275c75@oss.qualcomm.com> <20250519-wdt_reset_reason-v4-3-d59d21275c75@oss.qualcomm.com> <20250520-portable-anteater-of-respect-c7be5c@kuoka> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20250520-portable-anteater-of-respect-c7be5c@kuoka> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTIwMDEzMSBTYWx0ZWRfX+Y40+SCbP1BT HHVpZKUkfOeBHgyS5Z0m4aqRc1tSEZmEVJ/xosvo2V8hFPOF+Rb7hMI6mp39NQDi5ZRLEssP8nv nZWsMHV+LrG9jPvy2hRb24YKucq26PxPCNG2J2ww/YWFaBPYaFGwhvdSRrVCvR1xu2ZNRtVCItd gdVXqG+P/ogc5twBFJJe9h4ki3aFRIuaWQP4RRGES8M0KrY0M6GW2OiKTOiRIxReqc9hxbCs99u tLRMd30RJw2BtFuW9JdFgxvV+J6Yfe8evdbK2e4e8HDXxYEEARmRO3DfMhOR20UNSsYNJobD/Wk 8YW3xFnpMWitMAB3xh/YSt0kSz7SL4P9OP7XV3kMDjul4gJ+s71C/IhirpjFTqBS+QbLO9FdjId Qtz67GdTnuvPY+LBWD/aXUA/gBb7jgMdyAyjrUO4HXV33tbYus3uDihTUDluD5mX1/6tpkR8 X-Proofpoint-ORIG-GUID: GRUZy7832y0H_h5qYoRhUgbf5wSm3o_2 X-Proofpoint-GUID: GRUZy7832y0H_h5qYoRhUgbf5wSm3o_2 X-Authority-Analysis: v=2.4 cv=HIjDFptv c=1 sm=1 tr=0 ts=682ca738 cx=c_pps a=UgVkIMxJMSkC9lv97toC5g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=dt9VzEwgFbYA:10 a=EUspDBNiAAAA:8 a=qkre8nadHetdGucJBgsA:9 a=QEXdDO2ut3YA:10 a=1HOtulTD9v-eNWfpl4qZ:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-20_06,2025-05-20_03,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 lowpriorityscore=0 adultscore=0 mlxscore=0 clxscore=1015 bulkscore=0 suspectscore=0 spamscore=0 priorityscore=1501 malwarescore=0 impostorscore=0 mlxlogscore=999 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505070000 definitions=main-2505200131 On 5/20/25 9:25 AM, Krzysztof Kozlowski wrote: > On Mon, May 19, 2025 at 02:04:03PM GMT, Kathiravan Thirumoorthy wrote: >> Document the "qcom,imem" property for the watchdog device on Qualcomm >> IPQ platforms. Use this property to extract the restart reason from >> IMEM, which is updated by XBL. Populate the watchdog's bootstatus sysFS >> entry with this information, when the system reboots due to a watchdog >> timeout. >> >> Describe this property for the IPQ5424 watchdog device and extend support >> to other targets subsequently. >> >> Signed-off-by: Kathiravan Thirumoorthy >> --- >> Changes in v4: >> - New patch >> --- >> .../devicetree/bindings/watchdog/qcom-wdt.yaml | 20 ++++++++++++++++++++ >> 1 file changed, 20 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml b/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml >> index 49e2b807db0bc9d3edfc93ec41ad0df0b74ed032..bbe9b68ff4c8b813744ffd86bb52303943366fa2 100644 >> --- a/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml >> +++ b/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml >> @@ -81,6 +81,16 @@ properties: >> minItems: 1 >> maxItems: 5 >> >> + qcom,imem: > > Shoouldn't this be existing 'sram' property? If IMEM is something > similar to OCMEM, then we already use sram for that. We specifically want a handle to a predefined byte in IMEM, something akin to qcom,4ln-config-sel in Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml Konrad