52 lines
1.5 KiB
Plaintext
52 lines
1.5 KiB
Plaintext
|
Imagination Technologies I2S Output Controller
|
||
|
|
|
||
|
|
Required Properties:
|
||
|
|
|
||
|
|
- compatible : Compatible list, must contain "img,i2s-out"
|
||
|
|
|
||
|
|
- #sound-dai-cells : Must be equal to 0
|
||
|
|
|
||
|
|
- reg : Offset and length of the register set for the device
|
||
|
|
|
||
|
|
- clocks : Contains an entry for each entry in clock-names
|
||
|
|
|
||
|
|
- clock-names : Must include the following entries:
|
||
|
|
"sys" The system clock
|
||
|
|
"ref" The reference clock
|
||
|
|
|
||
|
|
- dmas: Contains an entry for each entry in dma-names.
|
||
|
|
|
||
|
|
- dma-names: Must include the following entry:
|
||
|
|
"tx" Single DMA channel used by all active I2S channels
|
||
|
|
|
||
|
|
- img,i2s-channels : Number of I2S channels instantiated in the I2S out block
|
||
|
|
|
||
|
|
- resets: Contains a phandle to the I2S out reset signal
|
||
|
|
|
||
|
|
- reset-names: Contains the reset signal name "rst"
|
||
|
|
|
||
|
|
Optional Properties:
|
||
|
|
|
||
|
|
- interrupts : Contains the I2S out interrupts. Depending on
|
||
|
|
the configuration, there may be no interrupts, one interrupt,
|
||
|
|
or an interrupt per I2S channel. For the case where there is
|
||
|
|
one interrupt per channel, the interrupts should be listed
|
||
|
|
in ascending channel order
|
||
|
|
|
||
|
|
Example:
|
||
|
|
|
||
|
|
i2s_out: i2s-out@18100a00 {
|
||
|
|
compatible = "img,i2s-out";
|
||
|
|
reg = <0x18100A00 0x200>;
|
||
|
|
interrupts = <GIC_SHARED 13 IRQ_TYPE_LEVEL_HIGH>;
|
||
|
|
dmas = <&mdc 23 0xffffffff 0>;
|
||
|
|
dma-names = "tx";
|
||
|
|
clocks = <&cr_periph SYS_CLK_I2S_OUT>,
|
||
|
|
<&clk_core CLK_I2S>;
|
||
|
|
clock-names = "sys", "ref";
|
||
|
|
img,i2s-channels = <6>;
|
||
|
|
resets = <&pistachio_reset PISTACHIO_RESET_I2S_OUT>;
|
||
|
|
reset-names = "rst";
|
||
|
|
#sound-dai-cells = <0>;
|
||
|
|
};
|