Am 2014-07-01 10:41, schrieb Jingchang Lu: > u32 ch = fsl_chan->vchan.chan.chan_id; > - void __iomem *muxaddr = fsl_chan->edma->muxbase[ch / DMAMUX_NR]; > + void __iomem *muxaddr; > unsigned chans_per_mux, ch_off; > > chans_per_mux = fsl_chan->edma->n_chans / DMAMUX_NR; > ch_off = fsl_chan->vchan.chan.chan_id % chans_per_mux; > + muxaddr = fsl_chan->edma->muxbase[ch / chans_per_mux]; After realizing that only one DMA channel was working on Vybrid I first came up with an almost identically patch before I found this one. I now applied and tested this one. Without this patch, the DMA user (e.g. lpuart) fails gracefully and work nonetheless, however without DMA. Since eDMA support is broken in current state in 3.16-rc3, it would be good to get this patch into 3.16. Tested-by: Stefan Agner <stefan@xxxxxxxx> -- Stefan -- 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
