[PATCH v5 17/75] usb: dwc3: import from kernel v4.14

[Anders Roxell <anders.roxell@linaro.org>]

From: Jens Wiklander <jens.wiklander@linaro.org>

Sync Linux kernel dwc3 changes from v4.13 to v4.14.

The following files are preserved accross the import:
Makefile Kconfig dwc3-meson-g12a.c dwc3-meson-gxl.c dwc3-omap.c
dwc3-uniphier.c dwc3-generic.h dwc3-generic.c dwc3-generic-sti.c
dwc3-layerscape.c ti_usb_phy.c

Skipping unused files:
debugfs.c drd.c dwc3-exynos.c dwc3-haps.c dwc3-imx8mp.c dwc3-keystone.c
dwc3-octeon.c dwc3-of-simple.c dwc3-pci.c dwc3-qcom.c dwc3-qcom-legacy.c
dwc3-rtk.c dwc3-st.c dwc3-xilinx.c host.c trace.c trace.h ulpi.c

Note that this is a raw import and doesn't build.
A fixup commit at the end of the series fixes that.

List of commits: git log --oneline v4.13..v4.14
Commits imported:
b24413180f56 License cleanup: add SPDX GPL-2.0 license identifier to files with no license
c3cdce45f8d3 usb: dwc3: of-simple: Add compatible for Spreadtrum SC9860 platform
551684708356 usb: dwc3: ep0: fix DMA starvation by assigning req->trb on ep0
e7059ef82a22 usb: dwc3: of-simple: remove include of clk-provider.h
95aa932c93d2 usb/dwc3:constify dev_pm_ops
c14af973ed86 usb: dwc3: keystone: Add PM_RUNTIME Support to DWC3 Keystone USB driver
0ae99ecba792 usb: dwc3: omap: fix error return code in dwc3_omap_probe()
8bcd9889721f usb: dwc3: pci: constify dev_pm_ops

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Fixes: b1a3ed068869 ("spl: make args file optional in falcon mode")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
---
 drivers/usb/dwc3/ep0.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 827e376bfa97..75e6cb044eb2 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -990,6 +990,8 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 					 DWC3_TRBCTL_CONTROL_DATA,
 					 true);
 
+		req->trb = &dwc->ep0_trb[dep->trb_enqueue - 1];
+
 		/* Now prepare one extra TRB to align transfer size */
 		dwc3_ep0_prepare_one_trb(dep, dwc->bounce_addr,
 					 maxpacket - rem,
@@ -1015,6 +1017,8 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 					 DWC3_TRBCTL_CONTROL_DATA,
 					 true);
 
+		req->trb = &dwc->ep0_trb[dep->trb_enqueue - 1];
+
 		/* Now prepare one extra TRB to align transfer size */
 		dwc3_ep0_prepare_one_trb(dep, dwc->bounce_addr,
 					 0, DWC3_TRBCTL_CONTROL_DATA,
@@ -1029,6 +1033,9 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 		dwc3_ep0_prepare_one_trb(dep, req->request.dma,
 				req->request.length, DWC3_TRBCTL_CONTROL_DATA,
 				false);
+
+		req->trb = &dwc->ep0_trb[dep->trb_enqueue];
+
 		ret = dwc3_ep0_start_trans(dep);
 	}
 
-- 
2.53.0