mirror of
https://github.com/torvalds/linux.git
synced 2024-12-24 20:01:55 +00:00
4ada77e37a
Fix a typo in the TX DMA interrupt name for AUART4.
This patch makes AUART4 operational again.
Signed-off-by: Marek Vasut <marex@denx.de>
Fixes: f30fb03d4d ("ARM: dts: add generic DMA device tree binding for mxs-dma")
Cc: stable@vger.kernel.org
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
61 lines
1.7 KiB
Plaintext
61 lines
1.7 KiB
Plaintext
* Freescale MXS DMA
|
|
|
|
Required properties:
|
|
- compatible : Should be "fsl,<chip>-dma-apbh" or "fsl,<chip>-dma-apbx"
|
|
- reg : Should contain registers location and length
|
|
- interrupts : Should contain the interrupt numbers of DMA channels.
|
|
If a channel is empty/reserved, 0 should be filled in place.
|
|
- #dma-cells : Must be <1>. The number cell specifies the channel ID.
|
|
- dma-channels : Number of channels supported by the DMA controller
|
|
|
|
Optional properties:
|
|
- interrupt-names : Name of DMA channel interrupts
|
|
|
|
Supported chips:
|
|
imx23, imx28.
|
|
|
|
Examples:
|
|
|
|
dma_apbh: dma-apbh@80004000 {
|
|
compatible = "fsl,imx28-dma-apbh";
|
|
reg = <0x80004000 0x2000>;
|
|
interrupts = <82 83 84 85
|
|
88 88 88 88
|
|
88 88 88 88
|
|
87 86 0 0>;
|
|
interrupt-names = "ssp0", "ssp1", "ssp2", "ssp3",
|
|
"gpmi0", "gmpi1", "gpmi2", "gmpi3",
|
|
"gpmi4", "gmpi5", "gpmi6", "gmpi7",
|
|
"hsadc", "lcdif", "empty", "empty";
|
|
#dma-cells = <1>;
|
|
dma-channels = <16>;
|
|
};
|
|
|
|
dma_apbx: dma-apbx@80024000 {
|
|
compatible = "fsl,imx28-dma-apbx";
|
|
reg = <0x80024000 0x2000>;
|
|
interrupts = <78 79 66 0
|
|
80 81 68 69
|
|
70 71 72 73
|
|
74 75 76 77>;
|
|
interrupt-names = "auart4-rx", "auart4-tx", "spdif-tx", "empty",
|
|
"saif0", "saif1", "i2c0", "i2c1",
|
|
"auart0-rx", "auart0-tx", "auart1-rx", "auart1-tx",
|
|
"auart2-rx", "auart2-tx", "auart3-rx", "auart3-tx";
|
|
#dma-cells = <1>;
|
|
dma-channels = <16>;
|
|
};
|
|
|
|
DMA clients connected to the MXS DMA controller must use the format
|
|
described in the dma.txt file.
|
|
|
|
Examples:
|
|
|
|
auart0: serial@8006a000 {
|
|
compatible = "fsl,imx28-auart", "fsl,imx23-auart";
|
|
reg = <0x8006a000 0x2000>;
|
|
interrupts = <112>;
|
|
dmas = <&dma_apbx 8>, <&dma_apbx 9>;
|
|
dma-names = "rx", "tx";
|
|
};
|