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| author | Frank Li <Frank.Li@nxp.com> | 2023-11-14 16:48:22 +0100 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-12-21 17:11:06 +0100 |
| commit | 1e9b05258271b76ccc04a4b535009d2cb596506a (patch) | |
| tree | 8dfc16cb21e92ce2a7463aacea4a4182a6609ea6 | |
| parent | dmaengine: fsl-edma: fix eDMAv4 channel allocation issue (diff) | |
| download | linux-1e9b05258271b76ccc04a4b535009d2cb596506a.tar.xz linux-1e9b05258271b76ccc04a4b535009d2cb596506a.zip | |
dt-bindings: dma: fsl-edma: Add fsl-edma.h to prevent hardcoding in dts
Introduce a common dt-bindings header file, fsl-edma.h, shared between
the driver and dts files. This addition aims to eliminate hardcoded values
in dts files, promoting maintainability and consistency.
DTS header file not support BIT() macro yet. Directly use 2^n number.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20231114154824.3617255-3-Frank.Li@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
| -rw-r--r-- | include/dt-bindings/dma/fsl-edma.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/dt-bindings/dma/fsl-edma.h b/include/dt-bindings/dma/fsl-edma.h new file mode 100644 index 000000000000..fd11478cfe9c --- /dev/null +++ b/include/dt-bindings/dma/fsl-edma.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */ + +#ifndef _FSL_EDMA_DT_BINDING_H_ +#define _FSL_EDMA_DT_BINDING_H_ + +/* Receive Channel */ +#define FSL_EDMA_RX 0x1 + +/* iMX8 audio remote DMA */ +#define FSL_EDMA_REMOTE 0x2 + +/* FIFO is continue memory region */ +#define FSL_EDMA_MULTI_FIFO 0x4 + +/* Channel need stick to even channel */ +#define FSL_EDMA_EVEN_CH 0x8 + +/* Channel need stick to odd channel */ +#define FSL_EDMA_ODD_CH 0x10 + +#endif |