On Fri, Jan 13, 2012 at 10:40:50AM +0000, Gupta, Ajay Kumar wrote: > Hi, > > CPPI4.1 (Communication Port Programming Interface) is a TI specific DMA > controller used in multiple TI platform such as AM33x, DA8x, AM35x, TI81x. > The DMA engine is mainly used by musb controller on above platform. > > Earlier version of the driver was submitted by Sergei Shtylyov at [1] but > was not merged due to disagreement on the location of driver in kernel. > Refer the discussions at [1] for more details. > > [1] http://marc.info/?l=linux-usb&m=125087318308323 > > The new implementation of the CPPI4.1 DMA slave driver will be in the > drivers/dma folder, complying to dmaengine framework. > It would involve changes in existing musb driver also for which current > plan is to maintain the compatibility of non-CPPI4.1 DMA in musb driver. > > The task is planned to be spitted into below subtasks. > > (1) Post RFC on the API details, changes envisaged in musb driver and other > challenges > > (2) Implement and post RFC for the CPPI4.1 DMA driver and changes needed in > musb driver. > > Let me know if you have any thoughts/comments on this. First off, don't highjack threads (you responded to a linux-usb thread here, get a better email client please.) Second, that sounds fine, please post patches. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
