Commit Graph

5 Commits

Author SHA1 Message Date
Andy Shevchenko
08d62f58aa dmaengine: dw: register IRQ and DMA pool with instance ID
It is really useful not only for debugging to have an IRQ line and DMA
pool labeled with driver and its instance ID. Do this for DesignWare DMA
driver.

All current users of this IP would be enhanced later on.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2017-01-25 11:51:39 +05:30
Andy Shevchenko
19d82910c0 dmaengine: dw: provide probe(), remove() stubs for users
Some users consider DMA optional, thus when driver is not compiled we shouldn't
prevent compilation of the users. Add stubs for dw_dma_probe() and
dw_dma_remove().

Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-31 16:13:29 +02:00
Andy Shevchenko
3a14c66d43 dmaengine: dw: pass platform data via struct dw_dma_chip
We pass struct dw_dma_chip to dw_dma_probe() anyway, thus we may use it to
pass a platform data as well.

While here, constify the source of the platform data.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-05-02 15:31:05 +05:30
Andy Shevchenko
2a52f6e49e dmaengine: dw: export probe()/remove() and Co to users
The driver library functions can be used directly by the compound devices such
as ADSP or serial driver where DesignWare DMA IP is privately attached to the
main hardware.

Instead of creating a new platform device leaf they may call dw_dma_probe()
with given struct dw_dma_chip directly and make sure that the main device is
DMA capable.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-10-15 20:31:05 +05:30
Andy Shevchenko
3d588f83e4 dmaengine: dw: split dma-dw.h to platform and private parts
The introduced include/linux/dma/dw.h is going to contain the private
extensions and structures which are shared for dw_dmac users in the kernel.
Meanwhile include/linux/platform_data/dma-dw.h keeps only platform related data
types and definitions.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-10-15 20:31:04 +05:30