diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2016-04-27 14:15:38 +0300 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-05-02 15:30:47 +0530 |
| commit | 2e65060e803e046fc9b5ed0107494a452424845e (patch) | |
| tree | 2e5adfe7ea7400586fff0623636912d2f1ded14a /include | |
| parent | 969f750fc63d3fd2f26eceedcdeca5878b785b2e (diff) | |
dmaengine: dw: revisit data_width property
There several changes are done here:
- Convert the property to be in bytes
Besides that this is a common practice for such property, the use of a value
in bytes much more convenient than handling the encoded one.
- Rename data_width to data-width in the device tree bindings
The change leaves the support for the old format as well just in case someone
will use a newer kernel with an old device tree blob.
- While here, replace dwc_fast_ffs() by __ffs()
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/platform_data/dma-dw.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/platform_data/dma-dw.h b/include/linux/platform_data/dma-dw.h index b881b978e486..ad768111c350 100644 --- a/include/linux/platform_data/dma-dw.h +++ b/include/linux/platform_data/dma-dw.h @@ -43,7 +43,7 @@ struct dw_dma_slave { * @block_size: Maximum block size supported by the controller * @nr_masters: Number of AHB masters supported by the controller * @data_width: Maximum data width supported by hardware per AHB master - * (0 - 8bits, 1 - 16bits, ..., 5 - 256bits) + * (in bytes, power of 2) */ struct dw_dma_platform_data { unsigned int nr_channels; |