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path: root/drivers/dma/hsu/hsu.h
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* dmaengine: hsu: remove platform dataHeikki Krogerus2015-10-171-0/+1
| | | | | | | | | | | | | There are no platforms where it's not possible to calculate the number of channels based on IO space length, and since that is the only purpose for struct hsu_dma_platform_data, removing it. Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* dmaengine: hsu: remove excessive lockAndy Shevchenko2015-07-161-1/+0
| | | | | | | | | All hardware accesses are done under virtual channel lock. That's why specific channel lock is excessive and can be removed safely. This has been tested on Intel Medfield and Merrifield. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: append hsu DMA driverAndy Shevchenko2015-03-071-0/+118
The HSU DMA is developed to support High Speed UART controllers found in particular on Intel MID platforms such as Intel Medfield. The existing implementation is tighten to the drivers/tty/serial/mfd.c driver and has a lot of disadvantages. Besides that we would like to get rid of the old HS UART driver in regarding to extending the 8250 which supports generic DMAEngine API. That's why the current driver has been developed. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>