spi-rockchip.yaml (2770B)
1# SPDX-License-Identifier: GPL-2.0 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/spi/spi-rockchip.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Rockchip SPI Controller 8 9description: 10 The Rockchip SPI controller is used to interface with various devices such 11 as flash and display controllers using the SPI communication interface. 12 13allOf: 14 - $ref: "spi-controller.yaml#" 15 16maintainers: 17 - Heiko Stuebner <heiko@sntech.de> 18 19# Everything else is described in the common file 20properties: 21 compatible: 22 oneOf: 23 - const: rockchip,rk3036-spi 24 - const: rockchip,rk3066-spi 25 - const: rockchip,rk3228-spi 26 - const: rockchip,rv1108-spi 27 - items: 28 - enum: 29 - rockchip,px30-spi 30 - rockchip,rk3188-spi 31 - rockchip,rk3288-spi 32 - rockchip,rk3308-spi 33 - rockchip,rk3328-spi 34 - rockchip,rk3368-spi 35 - rockchip,rk3399-spi 36 - rockchip,rk3568-spi 37 - rockchip,rv1126-spi 38 - const: rockchip,rk3066-spi 39 40 reg: 41 maxItems: 1 42 43 interrupts: 44 maxItems: 1 45 46 clocks: 47 items: 48 - description: transfer-clock 49 - description: peripheral clock 50 51 clock-names: 52 items: 53 - const: spiclk 54 - const: apb_pclk 55 56 dmas: 57 items: 58 - description: TX DMA Channel 59 - description: RX DMA Channel 60 61 dma-names: 62 items: 63 - const: tx 64 - const: rx 65 66 rx-sample-delay-ns: 67 default: 0 68 description: 69 Nano seconds to delay after the SCLK edge before sampling Rx data 70 (may need to be fine tuned for high capacitance lines). 71 If not specified 0 will be used. 72 73 pinctrl-names: 74 minItems: 1 75 items: 76 - const: default 77 - const: sleep 78 description: 79 Names for the pin configuration(s); may be "default" or "sleep", 80 where the "sleep" configuration may describe the state 81 the pins should be in during system suspend. 82 83required: 84 - compatible 85 - reg 86 - interrupts 87 - clocks 88 - clock-names 89 90unevaluatedProperties: false 91 92examples: 93 - | 94 #include <dt-bindings/clock/rk3188-cru-common.h> 95 #include <dt-bindings/interrupt-controller/arm-gic.h> 96 #include <dt-bindings/interrupt-controller/irq.h> 97 spi0: spi@ff110000 { 98 compatible = "rockchip,rk3066-spi"; 99 reg = <0xff110000 0x1000>; 100 interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>; 101 clocks = <&cru SCLK_SPI0>, <&cru PCLK_SPI0>; 102 clock-names = "spiclk", "apb_pclk"; 103 dmas = <&pdma1 11>, <&pdma1 12>; 104 dma-names = "tx", "rx"; 105 pinctrl-0 = <&spi1_pins>; 106 pinctrl-1 = <&spi1_sleep>; 107 pinctrl-names = "default", "sleep"; 108 rx-sample-delay-ns = <10>; 109 #address-cells = <1>; 110 #size-cells = <0>; 111 };