samsung,spi.yaml (4829B)
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/spi/samsung,spi.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Samsung S3C/S5P/Exynos SoC SPI controller 8 9maintainers: 10 - Krzysztof Kozlowski <krzk@kernel.org> 11 12description: 13 All the SPI controller nodes should be represented in the aliases node using 14 the following format 'spi{n}' where n is a unique number for the alias. 15 16properties: 17 compatible: 18 oneOf: 19 - enum: 20 - samsung,s3c2443-spi # for S3C2443, S3C2416 and S3C2450 21 - samsung,s3c6410-spi 22 - samsung,s5pv210-spi # for S5PV210 and S5PC110 23 - samsung,exynos5433-spi 24 - tesla,fsd-spi 25 - const: samsung,exynos7-spi 26 deprecated: true 27 28 clocks: 29 minItems: 2 30 maxItems: 3 31 32 clock-names: 33 minItems: 2 34 maxItems: 3 35 36 cs-gpios: true 37 38 dmas: 39 minItems: 2 40 maxItems: 2 41 42 dma-names: 43 items: 44 - const: tx 45 - const: rx 46 47 interrupts: 48 maxItems: 1 49 50 no-cs-readback: 51 description: 52 The CS line is disconnected, therefore the device should not operate 53 based on CS signalling. 54 type: boolean 55 56 num-cs: 57 minimum: 1 58 maximum: 4 59 default: 1 60 61 samsung,spi-src-clk: 62 description: 63 If the spi controller includes a internal clock mux to select the clock 64 source for the spi bus clock, this property can be used to indicate the 65 clock to be used for driving the spi bus clock. If not specified, the 66 clock number 0 is used as default. 67 $ref: /schemas/types.yaml#/definitions/uint32 68 default: 0 69 70 reg: 71 maxItems: 1 72 73required: 74 - compatible 75 - clocks 76 - clock-names 77 - dmas 78 - dma-names 79 - interrupts 80 - reg 81 82allOf: 83 - $ref: spi-controller.yaml# 84 - if: 85 properties: 86 compatible: 87 contains: 88 const: samsung,exynos5433-spi 89 then: 90 properties: 91 clocks: 92 minItems: 3 93 maxItems: 3 94 clock-names: 95 items: 96 - const: spi 97 - enum: 98 - spi_busclk0 99 - spi_busclk1 100 - spi_busclk2 101 - spi_busclk3 102 - const: spi_ioclk 103 else: 104 properties: 105 clocks: 106 minItems: 2 107 maxItems: 2 108 clock-names: 109 items: 110 - const: spi 111 - enum: 112 - spi_busclk0 113 - spi_busclk1 114 - spi_busclk2 115 - spi_busclk3 116 117unevaluatedProperties: false 118 119examples: 120 - | 121 #include <dt-bindings/clock/exynos5433.h> 122 #include <dt-bindings/clock/samsung,s2mps11.h> 123 #include <dt-bindings/interrupt-controller/arm-gic.h> 124 #include <dt-bindings/gpio/gpio.h> 125 126 spi@14d30000 { 127 compatible = "samsung,exynos5433-spi"; 128 reg = <0x14d30000 0x100>; 129 interrupts = <GIC_SPI 433 IRQ_TYPE_LEVEL_HIGH>; 130 dmas = <&pdma0 11>, <&pdma0 10>; 131 dma-names = "tx", "rx"; 132 #address-cells = <1>; 133 #size-cells = <0>; 134 clocks = <&cmu_peric CLK_PCLK_SPI1>, 135 <&cmu_peric CLK_SCLK_SPI1>, 136 <&cmu_peric CLK_SCLK_IOCLK_SPI1>; 137 clock-names = "spi", 138 "spi_busclk0", 139 "spi_ioclk"; 140 samsung,spi-src-clk = <0>; 141 pinctrl-names = "default"; 142 pinctrl-0 = <&spi1_bus>; 143 num-cs = <1>; 144 145 cs-gpios = <&gpd6 3 GPIO_ACTIVE_HIGH>; 146 147 audio-codec@0 { 148 compatible = "wlf,wm5110"; 149 reg = <0x0>; 150 spi-max-frequency = <20000000>; 151 interrupt-parent = <&gpa0>; 152 interrupts = <4 IRQ_TYPE_NONE>; 153 clocks = <&pmu_system_controller 0>, 154 <&s2mps13_osc S2MPS11_CLK_BT>; 155 clock-names = "mclk1", "mclk2"; 156 157 gpio-controller; 158 #gpio-cells = <2>; 159 interrupt-controller; 160 #interrupt-cells = <2>; 161 162 wlf,micd-detect-debounce = <300>; 163 wlf,micd-bias-start-time = <0x1>; 164 wlf,micd-rate = <0x7>; 165 wlf,micd-dbtime = <0x2>; 166 wlf,micd-force-micbias; 167 wlf,micd-configs = <0x0 1 0>; 168 wlf,hpdet-channel = <1>; 169 wlf,gpsw = <0x1>; 170 wlf,inmode = <2 0 2 0>; 171 172 wlf,reset = <&gpc0 7 GPIO_ACTIVE_HIGH>; 173 wlf,ldoena = <&gpf0 0 GPIO_ACTIVE_HIGH>; 174 175 /* core supplies */ 176 AVDD-supply = <&ldo18_reg>; 177 DBVDD1-supply = <&ldo18_reg>; 178 CPVDD-supply = <&ldo18_reg>; 179 DBVDD2-supply = <&ldo18_reg>; 180 DBVDD3-supply = <&ldo18_reg>; 181 SPKVDDL-supply = <&ldo18_reg>; 182 SPKVDDR-supply = <&ldo18_reg>; 183 184 controller-data { 185 samsung,spi-feedback-delay = <0>; 186 }; 187 }; 188 };