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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-389f2f4b48bsm26771231fa.9.2026.03.02.06.11.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Mar 2026 06:11:03 -0800 (PST) Message-ID: Date: Mon, 2 Mar 2026 15:10:59 +0100 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 v3 1/6] dt-bindings: sram: Describe the IMEM present in Qualcomm IPQ SoCs To: Krzysztof Kozlowski , Kathiravan Thirumoorthy Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org References: <20260228-imem-v3-0-20fbcc1a9404@oss.qualcomm.com> <20260228-imem-v3-1-20fbcc1a9404@oss.qualcomm.com> <20260301-secret-exotic-nightingale-80f55c@quoll> <4cf9c98e-767c-44d3-9e71-bcc790e83997@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: gsauClAP5Q2gFh1brTygFysZ4N5v_nb7 X-Authority-Analysis: v=2.4 cv=Hol72kTS c=1 sm=1 tr=0 ts=69a59a7a cx=c_pps a=P2rfLEam3zuxRRdjJWA2cw==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=AMyczQPEon3cgf3ZdCQA:9 a=QEXdDO2ut3YA:10 a=ODZdjJIeia2B_SHc_B0f:22 X-Proofpoint-ORIG-GUID: gsauClAP5Q2gFh1brTygFysZ4N5v_nb7 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzAyMDExOSBTYWx0ZWRfX0NvVO2XmgoxW 7efFBKRKg0vQDdW8U618jFrDeVghSwbfUtMr+HuJNUQhB/OgeT/IbwXgmav5ydVr4iPpuAEokfv xy/Uvadp8VjJUbnqGrwkKQ6OhzFqDa3/hzhICS/bR7EgwDTC4mYXK+QknuGiPhGA652oEqTd/N6 lLWtHFiccDs2E3aeha49Dg4Pb2W680CZ2B2XfYGWKNbQh8kdRTRFJ6AEiX2fMwgc0M/Dt0sVM1V VQ5FwSTuLp76yh99/rQHr89sjZQUwpm8LlIpS9uJcRNuYeWu099N7FPjxmSD0jJaeKKu6PbKtAt xvHgAvD0WmE9pkPA03xi8jd4tC0MRWhriORyacz2dJWZMJEzJI63Ovue8srV07rMvOAiNJ8FefA rA+VNFmJDI17UmZYwVLsK/+odAlxGZyrwG3bl3Qe3mLs8hOQ2DFOxIf2/HWQR6msOQ9WLkBTgC3 jmMydpSR/zRKMXqV4Sw== 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=2026-03-02_03,2026-03-02_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 malwarescore=0 adultscore=0 suspectscore=0 lowpriorityscore=0 phishscore=0 priorityscore=1501 bulkscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603020119 On 3/2/26 2:56 PM, Krzysztof Kozlowski wrote: > On 02/03/2026 14:52, Konrad Dybcio wrote: >> On 3/1/26 12:27 PM, Krzysztof Kozlowski wrote: >>> On Sat, Feb 28, 2026 at 06:38:00PM +0530, Kathiravan Thirumoorthy wrote: >>>> Qualcomm IPQ SoCs also have the IMEM(On-chip SRAM) region and used for >>>> the various debugging purposes like storing system restart reason and >>> >>> This binding does not allow restart reason. pil-reloc-info was kind of >>> allowed, but now I think this might have been a mistake because that >>> bindings were posted incomplete. >> >> The sram.yaml binding allows any arbitrrary subnode (sort of like nvmem), > > Not, true, look at the compatible. It requires a specific type of nodes. Right, I didn't scroll far enough! >> so long as the name includes 'smem' > > Also not accurate - "sram" is not the reboot reason, which has node name > called "reboot-mode". What I was referring to is: patternProperties: "^([a-z0-9]*-)?sram(-section)?@[a-f0-9]+$": where the 'sram' (not 'smem' as I typo'd above) is obligatory Konrad