1# SPDX-License-Identifier: GPL-2.0 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/rtc/s3c-rtc.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Samsung S3C, S5P and Exynos Real Time Clock controller 8 9maintainers: 10 - Krzysztof Kozlowski <krzk@kernel.org> 11 12properties: 13 compatible: 14 oneOf: 15 - enum: 16 - samsung,s3c2410-rtc 17 - samsung,s3c2416-rtc 18 - samsung,s3c2443-rtc 19 - samsung,s3c6410-rtc 20 - const: samsung,exynos3250-rtc 21 deprecated: true 22 23 reg: 24 maxItems: 1 25 26 clocks: 27 description: 28 Must contain a list of phandle and clock specifier for the rtc 29 clock and in the case of a s3c6410 compatible controller, also 30 a source clock. 31 minItems: 1 32 maxItems: 2 33 34 clock-names: 35 description: 36 Must contain "rtc" and for a s3c6410 compatible controller 37 also "rtc_src". 38 minItems: 1 39 maxItems: 2 40 41 interrupts: 42 description: 43 Two interrupt numbers to the cpu should be specified. First 44 interrupt number is the rtc alarm interrupt and second interrupt number 45 is the rtc tick interrupt. The number of cells representing a interrupt 46 depends on the parent interrupt controller. 47 minItems: 2 48 maxItems: 2 49 50allOf: 51 - if: 52 properties: 53 compatible: 54 contains: 55 enum: 56 - samsung,s3c6410-rtc 57 - samsung,exynos3250-rtc 58 then: 59 properties: 60 clocks: 61 minItems: 2 62 maxItems: 2 63 clock-names: 64 items: 65 - const: rtc 66 - const: rtc_src 67 else: 68 properties: 69 clocks: 70 minItems: 1 71 maxItems: 1 72 clock-names: 73 items: 74 - const: rtc 75 76examples: 77 - | 78 #include <dt-bindings/clock/exynos5420.h> 79 #include <dt-bindings/clock/samsung,s2mps11.h> 80 81 rtc@10070000 { 82 compatible = "samsung,s3c6410-rtc"; 83 reg = <0x10070000 0x100>; 84 interrupts = <0 44 4>, <0 45 4>; 85 clocks = <&clock CLK_RTC>, 86 <&s2mps11_osc S2MPS11_CLK_AP>; 87 clock-names = "rtc", "rtc_src"; 88 }; 89