diff options
| author | Linux Build Service Account <lnxbuild@localhost> | 2016-07-15 03:44:25 -0700 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2016-07-15 03:44:25 -0700 |
| commit | 427ac22e77bbd4b0834e4a237ac476c005104ddd (patch) | |
| tree | d9f7d80a08ce4373f48e5a6041727972382e2dcd /drivers | |
| parent | 5c73b07b81ded6486c1042cac298904e6fe35e0b (diff) | |
| parent | fa28b0304be8d09171a2e9907e615631efb0a161 (diff) | |
Merge "usb: dwc3: Fix bug in ep disable operation"
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/dwc3/core.h | 2 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-msm.c | 2 | ||||
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 6 |
3 files changed, 8 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index fa2a9d9a293a..4df5f3cd5b15 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -513,6 +513,7 @@ struct dwc3_ep_events { * @trb_dma_pool: dma pool used to get aligned trb memory pool * @trb_pool: array of transaction buffers * @trb_pool_dma: dma address of @trb_pool + * @num_trbs: num of trbs in the trb dma pool * @free_slot: next slot which is going to be used * @busy_slot: first slot which is owned by HW * @desc: usb_endpoint_descriptor pointer @@ -539,6 +540,7 @@ struct dwc3_ep { struct dma_pool *trb_dma_pool; struct dwc3_trb *trb_pool; dma_addr_t trb_pool_dma; + u32 num_trbs; u32 free_slot; u32 busy_slot; const struct usb_ss_ep_comp_descriptor *comp_desc; diff --git a/drivers/usb/dwc3/dwc3-msm.c b/drivers/usb/dwc3/dwc3-msm.c index f9c0b6a04224..49bed21b1284 100644 --- a/drivers/usb/dwc3/dwc3-msm.c +++ b/drivers/usb/dwc3/dwc3-msm.c @@ -969,6 +969,8 @@ static int gsi_prepare_trbs(struct usb_ep *ep, struct usb_gsi_request *req) return -ENOMEM; } + dep->num_trbs = num_trbs; + dep->trb_pool = dma_pool_alloc(dep->trb_dma_pool, GFP_KERNEL, &dep->trb_pool_dma); if (!dep->trb_pool) { diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 76d39a6fb68c..3e123b3da82d 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -390,18 +390,20 @@ int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep, static int dwc3_alloc_trb_pool(struct dwc3_ep *dep) { struct dwc3 *dwc = dep->dwc; + u32 num_trbs = DWC3_TRB_NUM; if (dep->trb_pool) return 0; dep->trb_pool = dma_zalloc_coherent(dwc->dev, - sizeof(struct dwc3_trb) * DWC3_TRB_NUM, + sizeof(struct dwc3_trb) * num_trbs, &dep->trb_pool_dma, GFP_KERNEL); if (!dep->trb_pool) { dev_err(dep->dwc->dev, "failed to allocate trb pool for %s\n", dep->name); return -ENOMEM; } + dep->num_trbs = num_trbs; return 0; } @@ -688,7 +690,7 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep) */ if (dep->number > 1) { memset(&dep->trb_pool[0], 0, - sizeof(struct dwc3_trb) * DWC3_TRB_NUM); + sizeof(struct dwc3_trb) * dep->num_trbs); dbg_event(dep->number, "Clr_TRB", 0); } |