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path: root/drivers/dma/sh/rcar-hpbdma.c
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2013-11-28rcar-hpbdma: initialise plane information when haltedKuninori Morimoto
Plane information should be initialized when halted. It may restart from the wrong plane without this patch. Reviewed-by: Max Filippov <max.filippov@cogentembedded.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-11-28rcar-hpbdma: fixup channel busy check for double planeKuninori Morimoto
The device busy check method is different between single and double planes. It will always return "busy" without this patch if channel used as double plane. Reviewed-by: Max Filippov <max.filippov@cogentembedded.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-11-28rcar-hpbdma: add max transfer sizeKuninori Morimoto
shdma_chan_probe() can set max transfer size, but it will be PAGE_SIZE with out this patch. Reviewed-by: Max Filippov <max.filippov@cogentembedded.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-10-11rcar-hpbdma: add parameter to set_slave() methodSergei Shtylyov
Commit 4981c4dc194efb18f0e9a02f1b43e926f2f0d2bb (DMA: shdma: switch DT mode to use configuration data from a match table) added a new parameter to set_slave() method but unfortunately got merged later than commit c4f6c41ba790bbbfcebb4c47a (dma: add driver for R-Car HPB-DMAC), so that the HPB-DMAC driver retained the old prototype which caused this warning: drivers/dma/sh/rcar-hpbdma.c:485: warning: initialization from incompatible pointer type The newly added parameter is used to override DMA slave address from 'struct hpb_dmae_slave_config', so we have to add the 'slave_addr' field to 'struct hpb_dmae_chan', conditionally assign it in set_slave() method, and return in slave_addr() method. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Tested-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-10-11rcar-hpbdma: remove shdma_free_irq() callsSergei Shtylyov
Commit c1c63a14f4f2419d093acd7164eccdff315baa86 (DMA: shdma: switch to managed resource allocation) got rid of shdma_free_irq() but unfortunately got merged later than commit c4f6c41ba790bbbfcebb4c47a709ac8ff1fe1af9 (dma: add driver for R-Car HPB-DMAC), so that the HPB-DMAC driver retained the calls and got broken: drivers/dma/sh/rcar-hpbdma.c: In function `hpb_dmae_alloc_chan_resources': drivers/dma/sh/rcar-hpbdma.c:435: error: implicit declaration of function `shdma_free_irq' Fix this compilation error by removing the remaining shdma_free_irq() calls. Reported-by: Simon Horman <horms@verge.net.au> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Tested-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-09-02dma: add driver for R-Car HPB-DMACMax Filippov
Add support for HPB-DMAC found in Renesas R-Car SoCs, using 'shdma-base' DMA driver framework. Based on the original patch by Phil Edworthy <phil.edworthy@renesas.com>. Signed-off-by: Max Filippov <max.filippov@cogentembedded.com> [Sergei: removed useless #include, sorted #include's, fixed HPB_DMA_TCR_MAX, fixed formats and removed line breaks in the dev_dbg() calls, rephrased and added IRQ # to the shdma_request_irq() failure message, added MODULE_AUTHOR(), removed '__init'/'__exit' annotations from the probe()/remove() methods, removed '__initdata' annotation from 'hpb_dmae_driver', fixed guard macro name in the header file, fixed #define ASYNCRSTR_ASRST20, added #define ASYNCRSTR_ASRST24, added the necessary runtime PM calls to the probe() and remove() methods, handled errors returned by dma_async_device_register(), beautified comments and #define's.] Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>