diff options
| author | Gregory Herrero <gregory.herrero@intel.com> | 2015-11-20 10:49:29 (GMT) |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-12-15 15:12:41 (GMT) |
| commit | 95105a998dff0747327f11708ea24480ee0eca54 (patch) | |
| tree | c634437396d62b1672f56b6a1f884374a4980271 /drivers/usb/dwc2/hcd.c | |
| parent | fbb9e22b15ad3c9a98c66bad801b4d1366e8bf20 (diff) | |
| download | linux-95105a998dff0747327f11708ea24480ee0eca54.tar.xz | |
usb: dwc2: host: avoid usage of dma_alloc_coherent with irqs disabled
Use Streaming DMA mappings to handle cache coherency of frame list and
descriptor list. Cache are always flushed before controller access it
or before cpu access it.
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc2/hcd.c')
| -rw-r--r-- | drivers/usb/dwc2/hcd.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index 32c84e7..7fd4f41 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -881,8 +881,10 @@ static int dwc2_assign_and_init_hc(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh) */ chan->multi_count = dwc2_hb_mult(qh->maxp); - if (hsotg->core_params->dma_desc_enable > 0) + if (hsotg->core_params->dma_desc_enable > 0) { chan->desc_list_addr = qh->desc_list_dma; + chan->desc_list_sz = qh->desc_list_sz; + } dwc2_hc_init(hsotg, chan); chan->qh = qh; |