usb: dwc3: convert structures into bitshifts

our parameter structures need to be written to
HW, so instead of assuming little endian, we
convert those into bit shifts.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 19 insertions, 21 deletions

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index fd1ac4dd560..fa824cfdd2e 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -158,12 +158,12 @@ int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
 
         dev_vdbg(dwc->dev, "%s: cmd '%s' params %08x %08x %08x\n",
                         dep->name,
-                        dwc3_gadget_ep_cmd_string(cmd), params->param0.raw,
-                        params->param1.raw, params->param2.raw);
+                        dwc3_gadget_ep_cmd_string(cmd), params->param0,
+                        params->param1, params->param2);
 
-        dwc3_writel(dwc->regs, DWC3_DEPCMDPAR0(ep), params->param0.raw);
-        dwc3_writel(dwc->regs, DWC3_DEPCMDPAR1(ep), params->param1.raw);
-        dwc3_writel(dwc->regs, DWC3_DEPCMDPAR2(ep), params->param2.raw);
+        dwc3_writel(dwc->regs, DWC3_DEPCMDPAR0(ep), params->param0);
+        dwc3_writel(dwc->regs, DWC3_DEPCMDPAR1(ep), params->param1);
+        dwc3_writel(dwc->regs, DWC3_DEPCMDPAR2(ep), params->param2);
 
         dwc3_writel(dwc->regs, DWC3_DEPCMD(ep), cmd | DWC3_DEPCMD_CMDACT);
         do {
@@ -257,21 +257,21 @@ static int dwc3_gadget_set_ep_config(struct dwc3 *dwc, struct dwc3_ep *dep,
 
         memset(&params, 0x00, sizeof(params));
 
-        params.param0.depcfg.ep_type = usb_endpoint_type(desc);
-        params.param0.depcfg.max_packet_size = usb_endpoint_maxp(desc);
-        params.param0.depcfg.burst_size = dep->endpoint.maxburst;
+        params.param0 = DWC3_DEPCFG_EP_TYPE(usb_endpoint_type(desc))
+                | DWC3_DEPCFG_MAX_PACKET_SIZE(usb_endpoint_maxp(desc))
+                | DWC3_DEPCFG_BURST_SIZE(dep->endpoint.maxburst);
 
-        params.param1.depcfg.xfer_complete_enable = true;
-        params.param1.depcfg.xfer_not_ready_enable = true;
+        params.param1 = DWC3_DEPCFG_XFER_COMPLETE_EN
+                | DWC3_DEPCFG_XFER_NOT_READY_EN;
 
         if (usb_endpoint_xfer_bulk(desc) && dep->endpoint.max_streams) {
-                params.param1.depcfg.stream_capable = true;
-                params.param1.depcfg.stream_event_enable = true;
+                params.param1 |= DWC3_DEPCFG_STREAM_CAPABLE
+                        | DWC3_DEPCFG_STREAM_EVENT_EN;
                 dep->stream_capable = true;
         }
 
         if (usb_endpoint_xfer_isoc(desc))
-                params.param1.depcfg.xfer_in_progress_enable = true;
+                params.param1 |= DWC3_DEPCFG_XFER_IN_PROGRESS_EN;
 
         /*
          * We are doing 1:1 mapping for endpoints, meaning
@@ -279,17 +279,17 @@ static int dwc3_gadget_set_ep_config(struct dwc3 *dwc, struct dwc3_ep *dep,
          * so on. We consider the direction bit as part of the physical
          * endpoint number. So USB endpoint 0x81 is 0x03.
          */
-        params.param1.depcfg.ep_number = dep->number;
+        params.param1 |= DWC3_DEPCFG_EP_NUMBER(dep->number);
 
         /*
          * We must use the lower 16 TX FIFOs even though
          * HW might have more
          */
         if (dep->direction)
-                params.param0.depcfg.fifo_number = dep->number >> 1;
+                params.param0 |= DWC3_DEPCFG_FIFO_NUMBER(dep->number >> 1);
 
         if (desc->bInterval) {
-                params.param1.depcfg.binterval_m1 = desc->bInterval - 1;
+                params.param1 |= DWC3_DEPCFG_BINTERVAL_M1(desc->bInterval - 1);
                 dep->interval = 1 << (desc->bInterval - 1);
         }
 
@@ -303,7 +303,7 @@ static int dwc3_gadget_set_xfer_resource(struct dwc3 *dwc, struct dwc3_ep *dep)
 
         memset(&params, 0x00, sizeof(params));
 
-        params.param0.depxfercfg.number_xfer_resources = 1;
+        params.param0 = DWC3_DEPXFERCFG_NUM_XFER_RES(1);
 
         return dwc3_send_gadget_ep_cmd(dwc, dep->number,
                         DWC3_DEPCMD_SETTRANSFRESOURCE, &params);
@@ -719,10 +719,8 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param,
         }
 
         memset(&params, 0, sizeof(params));
-        params.param0.depstrtxfer.transfer_desc_addr_high =
-                upper_32_bits(req->trb_dma);
-        params.param1.depstrtxfer.transfer_desc_addr_low =
-                lower_32_bits(req->trb_dma);
+        params.param0 = upper_32_bits(req->trb_dma);
+        params.param1 = lower_32_bits(req->trb_dma);
 
         if (start_new)
                 cmd = DWC3_DEPCMD_STARTTRANSFER;