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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-08-20 16:15:39 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2019-08-21 07:11:27 +0300 |
| commit | ae923c91aa3b4f7e20b764744188c0d859243d81 (patch) | |
| tree | 5176008d72f8f113d40bf537d1b55a5142ec52e8 /drivers/dma/dw/internal.h | |
| parent | 4b8584bac0407367f8157244c8952ed80bdb12fb (diff) | |
| download | linux-ae923c91aa3b4f7e20b764744188c0d859243d81.tar.xz | |
dmaengine: dw: Export struct dw_dma_chip_pdata for wider use
We are expecting some devices can be enumerated either as PCI or ACPI.
Nevertheless, they will share same information, thus, provide a generic
struct dw_dma_chip_pdata for all glue drivers.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20190820131546.75744-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/dw/internal.h')
| -rw-r--r-- | drivers/dma/dw/internal.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/dma/dw/internal.h b/drivers/dma/dw/internal.h index 1dd7a4e6dd23..df5c84e2a4fd 100644 --- a/drivers/dma/dw/internal.h +++ b/drivers/dma/dw/internal.h @@ -23,4 +23,32 @@ int do_dw_dma_enable(struct dw_dma_chip *chip); extern bool dw_dma_filter(struct dma_chan *chan, void *param); +struct dw_dma_chip_pdata { + const struct dw_dma_platform_data *pdata; + int (*probe)(struct dw_dma_chip *chip); + int (*remove)(struct dw_dma_chip *chip); + struct dw_dma_chip *chip; +}; + +static __maybe_unused const struct dw_dma_chip_pdata dw_dma_chip_pdata = { + .probe = dw_dma_probe, + .remove = dw_dma_remove, +}; + +static const struct dw_dma_platform_data idma32_pdata = { + .nr_channels = 8, + .chan_allocation_order = CHAN_ALLOCATION_ASCENDING, + .chan_priority = CHAN_PRIORITY_ASCENDING, + .block_size = 131071, + .nr_masters = 1, + .data_width = {4}, + .multi_block = {1, 1, 1, 1, 1, 1, 1, 1}, +}; + +static __maybe_unused const struct dw_dma_chip_pdata idma32_chip_pdata = { + .pdata = &idma32_pdata, + .probe = idma32_dma_probe, + .remove = idma32_dma_remove, +}; + #endif /* _DMA_DW_INTERNAL_H */ |