return 0;
 }
 
-static bool lpc32xx_dma_filter(struct dma_chan *chan, void *param)
-{
-       struct pl08x_dma_chan *ch =
-               container_of(chan, struct pl08x_dma_chan, chan);
-
-       /* In LPC32xx's PL080 DMA wiring, the SLC NAND DMA signal is #1 */
-       if (ch->cd->min_signal == 1)
-               return true;
-       return false;
-}
-
 static int lpc32xx_nand_dma_setup(struct lpc32xx_nand_host *host)
 {
        struct mtd_info *mtd = &host->mtd;
 
        dma_cap_zero(mask);
        dma_cap_set(DMA_SLAVE, mask);
-       host->dma_chan = dma_request_channel(mask, lpc32xx_dma_filter, NULL);
+       host->dma_chan = dma_request_channel(mask, pl08x_filter_id, "nand-slc");
        if (!host->dma_chan) {
                dev_err(mtd->dev.parent, "Failed to request DMA channel\n");
                return -EBUSY;