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| author | Robin Gong <yibin.gong@nxp.com> | 2019-07-24 15:20:34 +0800 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2019-08-08 17:54:36 +0530 |
| commit | 232a7f18cf8ecbd92a8cc6ca7feee4f6aab668fe (patch) | |
| tree | a32d24f6601db86b1e85d8cdef173a7dd4705275 /drivers/dma/fsl-edma-common.h | |
| parent | 719e25dba4430a7f2b1e77fa962f0527ebc9371d (diff) | |
| download | linux-232a7f18cf8ecbd92a8cc6ca7feee4f6aab668fe.tar.bz2 | |
dmaengine: fsl-edma: add i.mx7ulp edma2 version support
Add edma2 for i.mx7ulp by version v3, since v2 has already
been used by mcf-edma.
The big changes based on v1 are belows:
1. only one dmamux.
2. another clock dma_clk except dmamux clk.
3. 16 independent interrupts instead of only one interrupt for
all channels.
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Link: https://lore.kernel.org/r/1563952834-7731-1-git-send-email-yibin.gong@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/fsl-edma-common.h')
| -rw-r--r-- | drivers/dma/fsl-edma-common.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h index 4e175560292c..5eaa2902ed39 100644 --- a/drivers/dma/fsl-edma-common.h +++ b/drivers/dma/fsl-edma-common.h @@ -125,6 +125,7 @@ struct fsl_edma_chan { dma_addr_t dma_dev_addr; u32 dma_dev_size; enum dma_data_direction dma_dir; + char chan_name[16]; }; struct fsl_edma_desc { @@ -139,11 +140,13 @@ struct fsl_edma_desc { enum edma_version { v1, /* 32ch, Vybrid, mpc57x, etc */ v2, /* 64ch Coldfire */ + v3, /* 32ch, i.mx7ulp */ }; struct fsl_edma_drvdata { enum edma_version version; u32 dmamuxs; + bool has_dmaclk; int (*setup_irq)(struct platform_device *pdev, struct fsl_edma_engine *fsl_edma); }; @@ -153,6 +156,7 @@ struct fsl_edma_engine { void __iomem *membase; void __iomem *muxbase[DMAMUX_NR]; struct clk *muxclk[DMAMUX_NR]; + struct clk *dmaclk; struct mutex fsl_edma_mutex; const struct fsl_edma_drvdata *drvdata; u32 n_chans; |