It wasn't possible to enable some features like memory-to-memory transfers or multi block transfers via DT. It is fixed by these patches. Changes for v4: * Fix setting inverted value to "dwc->nollp". My fault - I tested with wrong DTS, so DMAC was configured from autoconfig instead of device tree. Pointed by Andy Shevchenko. * Update "multi-block" diescription in documentation to be more clear. Pointed by Arnd Bergmann. Changes for v3: * Update existing platform data. We don't need to update existing DTS because default logic wasn't change: we don't set "is_nollp" if we read configuration from DT before. And we don't set it now if "multi-block" property doesn't exist in DTS. Changes for v2: * I thought about is_memcpy DT property: all known devices, which use DT for configuration, support memory-to-memory transfers. So we don't need to read it from DT. So enable it by default, if we read configuration from DT. * Use "multi-block" instead of "hw-llp" name to be more clear. * Move adding DT property and adding documentation for this property to one patch. Eugeniy Paltsev (2): DW DMAC: enable memory-to-memory transfers support DW DMAC: add multi-block property to device tree Documentation/devicetree/bindings/dma/snps-dma.txt | 3 +++ drivers/dma/dw/core.c | 2 +- drivers/dma/dw/platform.c | 11 +++++++++++ drivers/tty/serial/8250/8250_lpss.c | 2 +- include/linux/platform_data/dma-dw.h | 4 ++-- 5 files changed, 18 insertions(+), 4 deletions(-) -- 2.5.5 -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
