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Wysocki" , Zhang Rui , Lukasz Luba , =?utf-8?q?S=C3=B8ren_Andersen?= , Guenter Roeck , Matti Vaittinen , Ahmad Fatoum , Andrew Morton , avaneesh.dwivedi@oss.qualcomm.com, Umang Chheda , Faruque Ansari X-Mailer: b4 0.15.2 X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODE5MDEzNCBTYWx0ZWRfX2FzD1BZDLCPS mEdtSF7rUT812VUbz/UEFOG1MAeCgjAQfq/3OjTX1sfXK/FdClRaHkfEyO2Fgjr+EhJATPnLhF8 RJ1sBUwBJUMAVCZnAXuLkf9Kp31ceJu2WAgb2YGOPoe1SXvSK8vwxrWx6ob4IZ0AuP46xQ0NEQc atvBtb+96EMtfXo2J+rR0UskO5Tf/jp+bVyDgGX8q9tfpX0r/zet6CZ+qi+IziSGeEDErQpcz5e PBrpceGUDi3ASP0fa3aRCm5+nFTxBxUVu31kxmfxNft1euDsOuXBPUMsmkcgaJbVXX0+mTUYqpU 5QQ7KzQgSPfGWnFS901eCA2+c79IUlo5a35BLAQhQgzhSvQoifK+tGRKaP1/foBBDtyss/KuxWd o7vhW9yWnDr1unNxyurPXYeZI9CdamdLV58g6j/NqOezewVAhIfU33MQpcKxajd3H7oq2CA2Xu1 SDcKbMy6HFHnX9BJ/kQ== X-Authority-Analysis: v=2.4 cv=cuOrVV4i c=1 sm=1 tr=0 ts=6a85e608 cx=c_pps a=Ou0eQOY4+eZoSc0qltEV5Q==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=EUspDBNiAAAA:8 a=MOLsqODhR6HaTkgyW3wA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-ORIG-GUID: DL34dKFa6OPFRv_qfuSZonI8p5ICq6X5 X-Proofpoint-GUID: DL34dKFa6OPFRv_qfuSZonI8p5ICq6X5 X-Proofpoint-Spam-Info: AW1haW4tMjYwODE5MDEzNCBTYWx0ZWRfXzWBgWSLihqAm N1C0hyKYxUak2VL6ewP2gSS/lwp0kYxJifQkKoM+LrxZTcz78bb5IQBkcZ1ImsasGZD0WGAkeer hw0NQQ1sZOZnSdJM24xnSQBa8JaFJy8= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-19_04,2026-08-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 malwarescore=0 suspectscore=0 phishscore=0 clxscore=1015 lowpriorityscore=0 adultscore=0 spamscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608190134 Add a one-byte NVMEM cell node in the SDAM to persist the power state change reason across resets, and wire it to a pscrr-nvmem recorder consumer node so the reason is recorded before shutdown/reboot and read back on the next boot. Signed-off-by: Faruque Ansari --- arch/arm64/boot/dts/qcom/lemans-pmics.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/lemans-pmics.dtsi b/arch/arm64/boot/dts/qcom/lemans-pmics.dtsi index 500f715931aa..96db3f57969f 100644 --- a/arch/arm64/boot/dts/qcom/lemans-pmics.dtsi +++ b/arch/arm64/boot/dts/qcom/lemans-pmics.dtsi @@ -97,6 +97,12 @@ reboot-mode { mode-recovery = <0x01>; mode-bootloader = <0x02>; }; + + reboot-reason { + compatible = "pscrr-nvmem"; + nvmem-cells = <&reboot_reason_persist>; + nvmem-cell-names = "pscr"; + }; }; &spmi_bus { @@ -186,6 +192,16 @@ reboot_reason: reboot-reason@48 { reg = <0x48 0x1>; bits = <1 7>; }; + + nvmem-layout { + compatible = "fixed-layout"; + #address-cells = <1>; + #size-cells = <1>; + + reboot_reason_persist: reboot-reason-persist@49 { + reg = <0x49 0x1>; + }; + }; }; }; -- 2.34.1