Based on kernel version 6.11
. Page generated on 2024-09-24 08:21 EST
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 --- $id: http://devicetree.org/schemas/mfd/nxp,bbnsm.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: NXP Battery-Backed Non-Secure Module maintainers: - Jacky Bai <ping.bai@nxp.com> description: | NXP BBNSM serves as non-volatile logic and storage for the system. it Intergrates RTC & ON/OFF control. The RTC can retain its state and continues counting even when the main chip is power down. A time alarm is generated once the most significant 32 bits of the real-time counter match the value in the Time Alarm register. The ON/OFF logic inside the BBNSM allows for connecting directly to a PMIC or other voltage regulator device. both smart PMIC mode and Dumb PMIC mode supported. properties: compatible: items: - enum: - nxp,imx93-bbnsm - const: syscon - const: simple-mfd reg: maxItems: 1 rtc: type: object $ref: /schemas/rtc/rtc.yaml# properties: compatible: enum: - nxp,imx93-bbnsm-rtc interrupts: maxItems: 1 start-year: true required: - compatible - interrupts additionalProperties: false pwrkey: type: object $ref: /schemas/input/input.yaml# properties: compatible: enum: - nxp,imx93-bbnsm-pwrkey interrupts: maxItems: 1 linux,code: true required: - compatible - interrupts additionalProperties: false required: - compatible - reg - rtc - pwrkey additionalProperties: false examples: - | #include <dt-bindings/input/linux-event-codes.h> #include <dt-bindings/interrupt-controller/arm-gic.h> bbnsm: bbnsm@44440000 { compatible = "nxp,imx93-bbnsm", "syscon", "simple-mfd"; reg = <0x44440000 0x10000>; bbnsm_rtc: rtc { compatible = "nxp,imx93-bbnsm-rtc"; interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>; }; bbnsm_pwrkey: pwrkey { compatible = "nxp,imx93-bbnsm-pwrkey"; interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>; linux,code = <KEY_POWER>; }; }; |