This patch fixes the following compilation warning
reported during x86_64 allmodconfig build:
  drivers/dma/mcf-edma.c: In function 'mcf_edma_filter_fn':
  drivers/dma/mcf-edma.c:296:33: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]
        return (mcf_chan->slave_id == (u32)param);
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
        if (chan->device->dev->driver == &mcf_edma_driver.driver) {
                struct fsl_edma_chan *mcf_chan = to_fsl_edma_chan(chan);
 
-               return (mcf_chan->slave_id == (u32)param);
+               return (mcf_chan->slave_id == (uintptr_t)param);
        }
 
        return false;