target/linux/apm821xx/patches-4.14/302-dw-dma-hprot-fix-and-equal-priortiy.patch

   1 --- a/drivers/dma/dw/core.c
   2 +++ b/drivers/dma/dw/core.c
   3 @@ -167,6 +167,8 @@ static void dwc_initialize_chan_dw(struc
   4         cfghi |= DWC_CFGH_DST_PER(dwc->dws.dst_id);
   5         cfghi |= DWC_CFGH_SRC_PER(dwc->dws.src_id);
   6
   7 +       cfghi |= DWC_CFGH_PROTCTL(3); /* bufferable + privileged access */
   8 +
   9         /* Set polarity of handshake interface */
  10         cfglo |= hs_polarity ? DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL : 0;
  11
  12 @@ -1293,11 +1295,8 @@ int dw_dma_probe(struct dw_dma_chip *chi
  13                 else
  14                         list_add(&dwc->chan.device_node, &dw->dma.channels);
  15
  16 -               /* 7 is highest priority & 0 is lowest. */
  17 -               if (pdata->chan_priority == CHAN_PRIORITY_ASCENDING)
  18 -                       dwc->priority = pdata->nr_channels - i - 1;
  19 -               else
  20 -                       dwc->priority = i;
  21 +               /* set all channels to the same priority */
  22 +               dwc->priority = pdata->nr_channels - 1;
  23
  24                 dwc->ch_regs = &__dw_regs(dw)->CHAN[i];
  25                 spin_lock_init(&dwc->lock);