mirror of
https://github.com/openwrt/openwrt.git
synced 2025-01-01 11:36:49 +00:00
7764d482d9
Removed because they are upstream: mediatek/patches-5.15/702-v5.17-net-mdio-add-helpers-to-extract-clause-45-regad-and-.patch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=a03c3a34692f8400a85ec1cc2b058c6880bb7e7b realtek/patches-5.15/020-v5.17-net-mdio-add-helpers-to-extract-clause-45-regad-and-.patch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=a03c3a34692f8400a85ec1cc2b058c6880bb7e7b Link: https://github.com/openwrt/openwrt/pull/15901 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
65 lines
2.3 KiB
Diff
65 lines
2.3 KiB
Diff
From 4dccc6e881f1e8d93c895a4b89e266d79e2746df Mon Sep 17 00:00:00 2001
|
|
From: Jonathan Bell <jonathan@raspberrypi.org>
|
|
Date: Mon, 26 Oct 2020 14:03:35 +0000
|
|
Subject: [PATCH] xhci: quirks: add link TRB quirk for VL805
|
|
|
|
The VL805 controller can't cope with the TR Dequeue Pointer for an endpoint
|
|
being set to a Link TRB. The hardware-maintained endpoint context ends up
|
|
stuck at the address of the Link TRB, leading to erroneous ring expansion
|
|
events whenever the enqueue pointer wraps to the dequeue position.
|
|
|
|
If the search for the end of the current TD and ring cycle state lands on
|
|
a Link TRB, move to the next segment.
|
|
|
|
See: https://github.com/raspberrypi/linux/issues/3919
|
|
|
|
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
|
|
---
|
|
drivers/usb/host/xhci-pci.c | 1 +
|
|
drivers/usb/host/xhci-ring.c | 9 +++++++++
|
|
drivers/usb/host/xhci.h | 1 +
|
|
3 files changed, 11 insertions(+)
|
|
|
|
--- a/drivers/usb/host/xhci-pci.c
|
|
+++ b/drivers/usb/host/xhci-pci.c
|
|
@@ -301,8 +301,10 @@ static void xhci_pci_quirks(struct devic
|
|
pdev->device == 0x3432)
|
|
xhci->quirks |= XHCI_BROKEN_STREAMS;
|
|
|
|
- if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483)
|
|
+ if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) {
|
|
xhci->quirks |= XHCI_LPM_SUPPORT;
|
|
+ xhci->quirks |= XHCI_AVOID_DQ_ON_LINK;
|
|
+ }
|
|
|
|
if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
|
|
pdev->device == PCI_DEVICE_ID_ASMEDIA_1042_XHCI) {
|
|
--- a/drivers/usb/host/xhci-ring.c
|
|
+++ b/drivers/usb/host/xhci-ring.c
|
|
@@ -664,6 +664,15 @@ static int xhci_move_dequeue_past_td(str
|
|
} while (!cycle_found || !td_last_trb_found);
|
|
|
|
deq_found:
|
|
+ /*
|
|
+ * Quirk: the xHC does not correctly parse link TRBs if the HW Dequeue
|
|
+ * pointer is set to one. Advance to the next TRB (and next segment).
|
|
+ */
|
|
+ if (xhci->quirks & XHCI_AVOID_DQ_ON_LINK && trb_is_link(new_deq)) {
|
|
+ if (link_trb_toggles_cycle(new_deq))
|
|
+ new_cycle ^= 0x1;
|
|
+ next_trb(xhci, ep_ring, &new_seg, &new_deq);
|
|
+ }
|
|
|
|
/* Don't update the ring cycle state for the producer (us). */
|
|
addr = xhci_trb_virt_to_dma(new_seg, new_deq);
|
|
--- a/drivers/usb/host/xhci.h
|
|
+++ b/drivers/usb/host/xhci.h
|
|
@@ -1909,6 +1909,7 @@ struct xhci_hcd {
|
|
#define XHCI_RESET_TO_DEFAULT BIT_ULL(44)
|
|
#define XHCI_ZHAOXIN_TRB_FETCH BIT_ULL(45)
|
|
#define XHCI_ZHAOXIN_HOST BIT_ULL(46)
|
|
+#define XHCI_AVOID_DQ_ON_LINK BIT_ULL(47)
|
|
|
|
unsigned int num_active_eps;
|
|
unsigned int limit_active_eps;
|