Hello, The MMP DMA (drivers/dma/mmap_pdma.c) driver supports the DMA engine found in PXA chips. However, PXA platforms still use a mix of custom platform code (arch/arm/plat-pxa/dma.c) and direct DMA controller access in various drivers (pata_pxa, spi-pxa2xx, pxa3xx_nand, pxaficp_ir, pxamci, smc91x, smc911x and pxa_camera). I'd like to use the MMP PDMA driver through the DMA engine API in a new driver I'm writing instead of the legacy PXA DMA code. However, this requires porting the platform to the MMP PDMA driver first, which involves porting all the above drivers to the DMA engine API. The spi-pxa2xx driver has already been ported and currently supports both the legacy PXA DMA API and the DMA engine API. All the other drivers seem to require the legacy PXA DMA API. I was wondering if any effort had been started in that direction. I could possibly help with the pxamci driver, but not with the other drivers as the corresponding peripherals are not used on my test platform (a custom PXA27x board). -- Regards, Laurent Pinchart -- 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
