| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | Motorola CPCAP PMIC device tree binding |
| 2 | |
| 3 | Required properties: |
| 4 | - compatible : One or both of "motorola,cpcap" or "ste,6556002" |
| 5 | - reg : SPI chip select |
| 6 | - interrupts : The interrupt line the device is connected to |
| 7 | - interrupt-controller : Marks the device node as an interrupt controller |
| 8 | - #interrupt-cells : The number of cells to describe an IRQ, should be 2 |
| 9 | - #address-cells : Child device offset number of cells, should be 1 |
| 10 | - #size-cells : Child device size number of cells, should be 0 |
| 11 | - spi-max-frequency : Typically set to 3000000 |
| 12 | - spi-cs-high : SPI chip select direction |
| 13 | |
| 14 | Optional subnodes: |
| 15 | |
| 16 | The sub-functions of CPCAP get their own node with their own compatible values, |
| 17 | which are described in the following files: |
| 18 | |
| 19 | - Documentation/devicetree/bindings/power/supply/cpcap-battery.yaml |
| 20 | - Documentation/devicetree/bindings/power/supply/cpcap-charger.yaml |
| 21 | - Documentation/devicetree/bindings/regulator/cpcap-regulator.txt |
| 22 | - Documentation/devicetree/bindings/phy/phy-cpcap-usb.txt |
| 23 | - Documentation/devicetree/bindings/input/cpcap-pwrbutton.txt |
| 24 | - Documentation/devicetree/bindings/rtc/cpcap-rtc.txt |
| 25 | - Documentation/devicetree/bindings/leds/leds-cpcap.txt |
| 26 | - Documentation/devicetree/bindings/iio/adc/motorola,cpcap-adc.yaml |
| 27 | |
| 28 | The only exception is the audio codec. Instead of a compatible value its |
| 29 | node must be named "audio-codec". |
| 30 | |
| 31 | Required properties for the audio-codec subnode: |
| 32 | |
| 33 | - #sound-dai-cells = <1>; |
| 34 | |
| 35 | The audio-codec provides two DAIs. The first one is connected to the |
| 36 | Stereo HiFi DAC and the second one is connected to the Voice DAC. |
| 37 | |
| 38 | Example: |
| 39 | |
| 40 | &mcspi1 { |
| 41 | cpcap: pmic@0 { |
| 42 | compatible = "motorola,cpcap", "ste,6556002"; |
| 43 | reg = <0>; /* cs0 */ |
| 44 | interrupt-parent = <&gpio1>; |
| 45 | interrupts = <7 IRQ_TYPE_EDGE_RISING>; |
| 46 | interrupt-controller; |
| 47 | #interrupt-cells = <2>; |
| 48 | #address-cells = <1>; |
| 49 | #size-cells = <0>; |
| 50 | spi-max-frequency = <3000000>; |
| 51 | spi-cs-high; |
| 52 | |
| 53 | audio-codec { |
| 54 | #sound-dai-cells = <1>; |
| 55 | |
| 56 | /* HiFi */ |
| 57 | port@0 { |
| 58 | endpoint { |
| 59 | remote-endpoint = <&cpu_dai1>; |
| 60 | }; |
| 61 | }; |
| 62 | |
| 63 | /* Voice */ |
| 64 | port@1 { |
| 65 | endpoint { |
| 66 | remote-endpoint = <&cpu_dai2>; |
| 67 | }; |
| 68 | }; |
| 69 | }; |
| 70 | }; |
| 71 | }; |
| 72 | |