openwrt/target/linux/bcm27xx/patches-4.19/950-0361-dwc_otg-only-do_split-when-we-actually-need-to-do-a-.patch
Adrian Schmutzler 7d7aa2fd92 brcm2708: rename target to bcm27xx
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
2020-02-14 14:10:51 +01:00

56 lines
2.0 KiB
Diff

From 0c988aed71773be4481b886ccf03c40a52f57cdb Mon Sep 17 00:00:00 2001
From: P33M <p33m@github.com>
Date: Mon, 8 Apr 2019 12:45:23 +0100
Subject: [PATCH] dwc_otg: only do_split when we actually need to do a
split
The previous test would fail if the root port was in fullspeed mode
and there was a hub between the FS device and the root port. While
the transfer worked, the schedule mangling performed for high-speed
split transfers would break leading to an 8ms polling interval.
---
drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
@@ -167,8 +167,10 @@ void qh_init(dwc_otg_hcd_t * hcd, dwc_ot
char *speed, *type;
int dev_speed;
uint32_t hub_addr, hub_port;
+ hprt0_data_t hprt;
dwc_memset(qh, 0, sizeof(dwc_otg_qh_t));
+ hprt.d32 = DWC_READ_REG32(hcd->core_if->host_if->hprt0);
/* Initialize QH */
qh->ep_type = dwc_otg_hcd_get_pipe_type(&urb->pipe_info);
@@ -191,9 +193,8 @@ void qh_init(dwc_otg_hcd_t * hcd, dwc_ot
qh->nak_frame = 0xffff;
- if (((dev_speed == USB_SPEED_LOW) ||
- (dev_speed == USB_SPEED_FULL)) &&
- (hub_addr != 0 && hub_addr != 1)) {
+ if (hprt.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED &&
+ dev_speed != USB_SPEED_HIGH) {
DWC_DEBUGPL(DBG_HCD,
"QH init: EP %d: TT found at hub addr %d, for port %d\n",
dwc_otg_hcd_get_ep_num(&urb->pipe_info), hub_addr,
@@ -204,7 +205,6 @@ void qh_init(dwc_otg_hcd_t * hcd, dwc_ot
if (qh->ep_type == UE_INTERRUPT || qh->ep_type == UE_ISOCHRONOUS) {
/* Compute scheduling parameters once and save them. */
- hprt0_data_t hprt;
/** @todo Account for split transfers in the bus time. */
int bytecount =
@@ -219,7 +219,6 @@ void qh_init(dwc_otg_hcd_t * hcd, dwc_ot
SCHEDULE_SLOP);
qh->interval = urb->interval;
- hprt.d32 = DWC_READ_REG32(hcd->core_if->host_if->hprt0);
if (hprt.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED) {
if (dev_speed == USB_SPEED_LOW ||
dev_speed == USB_SPEED_FULL) {