Re: [PATCH v4 09/14] mmc: omap_hsmmc: set max_segs based on dma engine limitations

2013-01-11 Thread Tony Lindgren
* Matt Porter mpor...@ti.com [130110 21:47]: The EDMA DMAC has a hardware limitation that prevents supporting scatter gather lists with any number of segments. The DMA Engine API reports the maximum number of segments a channel can support via the optional dma_get_channel_caps() API. If the

[PATCH v4 09/14] mmc: omap_hsmmc: set max_segs based on dma engine limitations

2013-01-10 Thread Matt Porter
The EDMA DMAC has a hardware limitation that prevents supporting scatter gather lists with any number of segments. The DMA Engine API reports the maximum number of segments a channel can support via the optional dma_get_channel_caps() API. If the nr_segs capability is present, the value is used to