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>

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 */