| Damien.Horsley | e13c118 | 2015-11-04 14:40:47 +0000 | [diff] [blame] | 1 | Imagination Technologies I2S Input Controller |
| 2 | |
| 3 | Required Properties: |
| 4 | |
| 5 | - compatible : Compatible list, must contain "img,i2s-in" |
| 6 | |
| 7 | - #sound-dai-cells : Must be equal to 0 |
| 8 | |
| 9 | - reg : Offset and length of the register set for the device |
| 10 | |
| 11 | - clocks : Contains an entry for each entry in clock-names |
| 12 | |
| 13 | - clock-names : Must include the following entry: |
| 14 | "sys" The system clock |
| 15 | |
| 16 | - dmas: Contains an entry for each entry in dma-names. |
| 17 | |
| 18 | - dma-names: Must include the following entry: |
| 19 | "rx" Single DMA channel used by all active I2S channels |
| 20 | |
| 21 | - img,i2s-channels : Number of I2S channels instantiated in the I2S in block |
| 22 | |
| 23 | Optional Properties: |
| 24 | |
| 25 | - interrupts : Contains the I2S in interrupts. Depending on |
| 26 | the configuration, there may be no interrupts, one interrupt, |
| 27 | or an interrupt per I2S channel. For the case where there is |
| 28 | one interrupt per channel, the interrupts should be listed |
| 29 | in ascending channel order |
| 30 | |
| 31 | - resets: Contains a phandle to the I2S in reset signal |
| 32 | |
| 33 | - reset-names: Contains the reset signal name "rst" |
| 34 | |
| 35 | Example: |
| 36 | |
| 37 | i2s_in: i2s-in@18100800 { |
| 38 | compatible = "img,i2s-in"; |
| 39 | reg = <0x18100800 0x200>; |
| 40 | interrupts = <GIC_SHARED 7 IRQ_TYPE_LEVEL_HIGH>; |
| 41 | dmas = <&mdc 30 0xffffffff 0>; |
| 42 | dma-names = "rx"; |
| 43 | clocks = <&cr_periph SYS_CLK_I2S_IN>; |
| 44 | clock-names = "sys"; |
| 45 | img,i2s-channels = <6>; |
| 46 | #sound-dai-cells = <0>; |
| 47 | }; |