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| author | Bo Shen <voice.shen@atmel.com> | 2014-09-18 14:56:43 +0200 |
|---|---|---|
| committer | Nicolas Ferre <nicolas.ferre@atmel.com> | 2014-09-18 15:21:03 +0200 |
| commit | fe855dbfd3fde8fd3093e51992904e3c875a4a02 (patch) | |
| tree | 28a3f1f418f3497bedc6b3222d5fa4f2472e9c80 /arch/arm/boot/dts/sama5d3xmb.dtsi | |
| parent | ARM: at91: sama5d3: add usart dma configurations (diff) | |
| download | linux-fe855dbfd3fde8fd3093e51992904e3c875a4a02.tar.xz linux-fe855dbfd3fde8fd3093e51992904e3c875a4a02.zip | |
ARM: at91: sama5d3xek: reserve dma channel for audio
We set the DMA configuration on USARTs in the SoC DT in (ARM: at91: sama5d3:
add usart dma configurations). As the audio must work with DMA channels, we
reserve some dma channels for audio, or else audio won't work.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
[nicolas.ferre@atmel.com: move to the sama5d3xmb.dtsi to cover all board variants]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch/arm/boot/dts/sama5d3xmb.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/sama5d3xmb.dtsi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sama5d3xmb.dtsi b/arch/arm/boot/dts/sama5d3xmb.dtsi index b8c6f20e780c..49c10d33df30 100644 --- a/arch/arm/boot/dts/sama5d3xmb.dtsi +++ b/arch/arm/boot/dts/sama5d3xmb.dtsi @@ -25,6 +25,8 @@ }; spi0: spi@f0004000 { + dmas = <0>, <0>; /* Do not use DMA for spi0 */ + m25p80@0 { compatible = "atmel,at25df321a"; spi-max-frequency = <50000000>; @@ -51,6 +53,7 @@ }; usart1: serial@f0020000 { + dmas = <0>, <0>; /* Do not use DMA for usart1 */ pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usart1 &pinctrl_usart1_rts_cts>; status = "okay"; @@ -132,6 +135,7 @@ }; dbgu: serial@ffffee00 { + dmas = <0>, <0>; /* Do not use DMA for dbgu */ status = "okay"; }; |