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dmaengine: dw: convert dw_dma_slave to use explicit HS interfaces

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Instead of exposing the possibility to set DMA registers CFG_HI and CFG_LO
strict user to provide handshake interfaces explicitly.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Andy Shevchenko 2014-08-19 20:29:14 +03:00 • committed by Vinod Koul
commit 7e1e2f27c5
3 changed files with 11 additions and 18 deletions
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10
include/linux/platform_data/dma-dw.h
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@ -17,17 +17,15 @@
* struct dw_dma_slave - Controller-specific information about a slave
*
* @dma_dev: required DMA master device. Depricated.
* @bus_id: name of this device channel, not just a device name since
* devices may have more than one channel e.g. "foo_tx"
* @cfg_hi: Platform-specific initializer for the CFG_HI register
* @cfg_lo: Platform-specific initializer for the CFG_LO register
* @src_id: src request line
* @dst_id: dst request line
* @src_master: src master for transfers on allocated channel.
* @dst_master: dest master for transfers on allocated channel.
*/
struct dw_dma_slave {
struct device *dma_dev;
u32 cfg_hi;
u32 cfg_lo;
u8 src_id;
u8 dst_id;
u8 src_master;
u8 dst_master;
};