diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2012-10-04 22:57:00 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-10-04 22:57:51 +0200 |
| commit | c37d6154c0b9163c27e53cc1d0be3867b4abd760 (patch) | |
| tree | 7a24522c56d1cb284dff1d3c225bbdaba0901bb5 /include/linux/platform_data/dma-imx.h | |
| parent | e7a570ff7dff9af6e54ff5e580a61ec7652137a0 (diff) | |
| parent | 8a1ab3155c2ac7fbe5f2038d6e26efeb607a1498 (diff) | |
Merge branch 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers into asm-generic
Patches from David Howells <dhowells@redhat.com>:
This is to complete part of the UAPI disintegration for which the
preparatory patches were pulled recently.
Note that there are some fixup patches which are at the base of the
branch aimed at you, plus all arches get the asm-generic branch merged in too.
* 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate include/asm-generic
UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
c6x: remove c6x signal.h
UAPI: Split compound conditionals containing __KERNEL__ in Arm64
UAPI: Fix the guards on various asm/unistd.h files
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'include/linux/platform_data/dma-imx.h')
| -rw-r--r-- | include/linux/platform_data/dma-imx.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h new file mode 100644 index 00000000000..1b9080385b4 --- /dev/null +++ b/include/linux/platform_data/dma-imx.h @@ -0,0 +1,67 @@ +/* + * Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_MXC_DMA_H__ +#define __ASM_ARCH_MXC_DMA_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 */ +}; + +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 */ + 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 strstr(dev_name(chan->device->dev), "sdma") || + !strcmp(dev_name(chan->device->dev), "imx-dma"); +} + +#endif |