Commit 71dfaf5f authored by Damien.Horsley's avatar Damien.Horsley Committed by Mark Brown

ASoC: img: Add binding document for parallel output controller

Add binding document for Imagination Technologies parallel
output controller
Signed-off-by: default avatarDamien.Horsley <Damien.Horsley@imgtec.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent d0e3992c
Imagination Technologies Parallel Output Controller
Required Properties:
- compatible : Compatible list, must contain "img,parallel-out".
- #sound-dai-cells : Must be equal to 0
- reg : Offset and length of the register set for the device.
- dmas: Contains an entry for each entry in dma-names.
- dma-names: Must include the following entry:
"tx"
- clocks : Contains an entry for each entry in clock-names.
- clock-names : Includes the following entries:
"sys" The system clock
"ref" The reference clock
- resets: Contains a phandle to the parallel out reset signal
- reset-names: Contains the reset signal name "rst"
Optional Properties:
- interrupts : Contains the parallel out interrupt, if present
Example:
parallel_out: parallel-out@18100C00 {
compatible = "img,parallel-out";
reg = <0x18100C00 0x100>;
interrupts = <GIC_SHARED 19 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&mdc 16 0xffffffff 0>;
dma-names = "tx";
clocks = <&cr_periph SYS_CLK_PAUD_OUT>,
<&clk_core CLK_AUDIO_DAC>;
clock-names = "sys", "ref";
resets = <&pistachio_reset PISTACHIO_RESET_PRL_OUT>;
reset-names = "rst";
#sound-dai-cells = <0>;
};
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