diff options
| author | Artem Leonenko <tikkeri@gmail.com> | 2010-12-14 23:47:06 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-12-16 13:32:37 -0800 |
| commit | 0a313c4d2435ed0d86cf2295514f02de34cecd88 (patch) | |
| tree | 243bf1a49156fa98b1ddeb78d8780af1848e7c3f /drivers/usb/gadget | |
| parent | 7c25a82684364da44643cbe3bdbd0f8835293767 (diff) | |
| download | lwn-0a313c4d2435ed0d86cf2295514f02de34cecd88.tar.gz lwn-0a313c4d2435ed0d86cf2295514f02de34cecd88.zip | |
USB: gadget: ci13xxx: don't assume that PAGE_SIZE is 4096
Page size for transaction descriptors for CI13XXX has nothing
common with page size from MM. Using platform and configuration
specific PAGE_SIZE is wrong.
Signed-off-by: Artem Leonenko <tikkeri@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/ci13xxx_udc.c | 10 | ||||
| -rw-r--r-- | drivers/usb/gadget/ci13xxx_udc.h | 1 |
2 files changed, 6 insertions, 5 deletions
diff --git a/drivers/usb/gadget/ci13xxx_udc.c b/drivers/usb/gadget/ci13xxx_udc.c index 0060eef0e923..31656a2b4ab4 100644 --- a/drivers/usb/gadget/ci13xxx_udc.c +++ b/drivers/usb/gadget/ci13xxx_udc.c @@ -1460,7 +1460,7 @@ static int _hardware_enqueue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq) mReq->ptr->page[0] = mReq->req.dma; for (i = 1; i < 5; i++) mReq->ptr->page[i] = - (mReq->req.dma + i * PAGE_SIZE) & ~TD_RESERVED_MASK; + (mReq->req.dma + i * CI13XXX_PAGE_SIZE) & ~TD_RESERVED_MASK; /* * QH configuration @@ -2159,8 +2159,8 @@ static int ep_queue(struct usb_ep *ep, struct usb_request *req, goto done; } - if (req->length > (4 * PAGE_SIZE)) { - req->length = (4 * PAGE_SIZE); + if (req->length > (4 * CI13XXX_PAGE_SIZE)) { + req->length = (4 * CI13XXX_PAGE_SIZE); retval = -EMSGSIZE; warn("request length truncated"); } @@ -2410,13 +2410,13 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, /* alloc resources */ udc->qh_pool = dma_pool_create("ci13xxx_qh", &udc->gadget.dev, sizeof(struct ci13xxx_qh), - 64, PAGE_SIZE); + 64, CI13XXX_PAGE_SIZE); if (udc->qh_pool == NULL) return -ENOMEM; udc->td_pool = dma_pool_create("ci13xxx_td", &udc->gadget.dev, sizeof(struct ci13xxx_td), - 64, PAGE_SIZE); + 64, CI13XXX_PAGE_SIZE); if (udc->td_pool == NULL) { dma_pool_destroy(udc->qh_pool); udc->qh_pool = NULL; diff --git a/drivers/usb/gadget/ci13xxx_udc.h b/drivers/usb/gadget/ci13xxx_udc.h index 4fd19313e238..f61fed07f76b 100644 --- a/drivers/usb/gadget/ci13xxx_udc.h +++ b/drivers/usb/gadget/ci13xxx_udc.h @@ -19,6 +19,7 @@ /****************************************************************************** * DEFINE *****************************************************************************/ +#define CI13XXX_PAGE_SIZE 4096ul /* page size for TD's */ #define ENDPT_MAX (16) #define CTRL_PAYLOAD_MAX (64) #define RX (0) /* similar to USB_DIR_OUT but can be used as an index */ |