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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2022-04-14 18:22:37 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-04-19 12:06:18 +0100 |
| commit | c6547c2ed0e1487c91983faccad841611ab6a783 (patch) | |
| tree | fff6e89cf0e492f76eeccdc586fb5808f6a0e2b5 /include/linux/dma | |
| parent | 819dc38b93e7e0606d71dde80896c139afe7ce48 (diff) | |
| download | linux-c6547c2ed0e1487c91983faccad841611ab6a783.tar.gz linux-c6547c2ed0e1487c91983faccad841611ab6a783.tar.bz2 linux-c6547c2ed0e1487c91983faccad841611ab6a783.zip | |
dmaengine: imx: Move header to include/dma/
The i.MX DMA drivers are device tree only, nothing in
include/linux/platform_data/dma-imx.h has platform_data in it, so move
the file to include/linux/dma/imx-dma.h.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-By: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20220414162249.3934543-10-s.hauer@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/dma')
| -rw-r--r-- | include/linux/dma/imx-dma.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/include/linux/dma/imx-dma.h b/include/linux/dma/imx-dma.h new file mode 100644 index 000000000000..b06cba85a6d4 --- /dev/null +++ b/include/linux/dma/imx-dma.h @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +#ifndef __LINUX_DMA_IMX_H +#define __LINUX_DMA_IMX_H + +#include <linux/scatterlist.h> +#include <linux/device.h> +#include <linux/dmaengine.h> + +/* + * This enumerates peripheral types. Used for SDMA. + */ +enum sdma_peripheral_type { + IMX_DMATYPE_SSI, /* MCU domain SSI */ + IMX_DMATYPE_SSI_SP, /* Shared SSI */ + IMX_DMATYPE_MMC, /* MMC */ + IMX_DMATYPE_SDHC, /* SDHC */ + IMX_DMATYPE_UART, /* MCU domain UART */ + IMX_DMATYPE_UART_SP, /* Shared UART */ + IMX_DMATYPE_FIRI, /* FIRI */ + IMX_DMATYPE_CSPI, /* MCU domain CSPI */ + IMX_DMATYPE_CSPI_SP, /* Shared CSPI */ + IMX_DMATYPE_SIM, /* SIM */ + IMX_DMATYPE_ATA, /* ATA */ + IMX_DMATYPE_CCM, /* CCM */ + IMX_DMATYPE_EXT, /* External peripheral */ + IMX_DMATYPE_MSHC, /* Memory Stick Host Controller */ + IMX_DMATYPE_MSHC_SP, /* Shared Memory Stick Host Controller */ + IMX_DMATYPE_DSP, /* DSP */ + IMX_DMATYPE_MEMORY, /* Memory */ + IMX_DMATYPE_FIFO_MEMORY,/* FIFO type Memory */ + IMX_DMATYPE_SPDIF, /* SPDIF */ + IMX_DMATYPE_IPU_MEMORY, /* IPU Memory */ + IMX_DMATYPE_ASRC, /* ASRC */ + IMX_DMATYPE_ESAI, /* ESAI */ + IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */ + IMX_DMATYPE_ASRC_SP, /* Shared ASRC */ + IMX_DMATYPE_SAI, /* SAI */ +}; + +enum imx_dma_prio { + DMA_PRIO_HIGH = 0, + DMA_PRIO_MEDIUM = 1, + DMA_PRIO_LOW = 2 +}; + +struct imx_dma_data { + int dma_request; /* DMA request line */ + int dma_request2; /* secondary DMA request line */ + enum sdma_peripheral_type peripheral_type; + int priority; +}; + +static inline int imx_dma_is_ipu(struct dma_chan *chan) +{ + return !strcmp(dev_name(chan->device->dev), "ipu-core"); +} + +static inline int imx_dma_is_general_purpose(struct dma_chan *chan) +{ + return !strcmp(chan->device->dev->driver->name, "imx-sdma") || + !strcmp(chan->device->dev->driver->name, "imx-dma"); +} + +#endif /* __LINUX_DMA_IMX_H */ |