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251a382c28
Deleted (upstreamed): generic/backport-5.15/400-mtdblock-warn-if-opened-on-NAND.patch [01] generic/backport-5.15/420-v5.19-01-mtd-spinand-gigadevice-fix-Quad-IO-for-GD5F1GQ5UExxG.patch [02] bcm27xx/patches-5.15/950-0029-Revert-mailbox-avoid-timer-start-from-callback.patch [03] bcm27xx/patches-5.15/950-0417-bcm2711_thermal-Don-t-clamp-temperature-at-zero.patch [04] bcm27xx/patches-5.15/950-0740-drm-vc4-hvs-Fix-frame-count-register-readout.patch [05] bcm27xx/patches-5.15/950-0755-drm-vc4-hvs-Reset-muxes-at-probe-time.patch [06] bcm27xx/patches-5.15/950-0759-drm-vc4-txp-Don-t-set-TXP_VSTART_AT_EOF.patch [07] bcm27xx/patches-5.15/950-0760-drm-vc4-txp-Force-alpha-to-be-0xff-if-it-s-disabled.patch [08] bcm53xx/patches-5.15/031-v5.17-0005-ARM-dts-BCM5301X-update-CRU-block-description.patch [09] mediatek/patches-5.15/102-mt7629-enable-arch-timer.patch [10] Manually rebased: bcm27xx/patches-5.15/950-0741-drm-vc4-hvs-Use-pointer-to-HVS-in-HVS_READ-and-HVS_W.patch [01] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=f41c9418c5898c01634675150696da290fb86796 [02] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=d5b66645305c6f3a1b2cf75cee4157b07f293309 [03] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=119f99209d8531359bcb935f252ec435f9d21b13 [04] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=c4e1280abead1552e1764684079a43e222ccd163 [05] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=08465a1889cb48ec64431e9db745b5be15399251 [06] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=0e26a6da02e63b75b629573d13966c36aa6264f0 [07] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=01c9020b2e7c85e394879f34851805179ac3d1d8 [08] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=d47f85cc0171a5d3c5bd8cbb8a98983ca3357cbd [09] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=5151f24ac937ff7eb1f078257c66e3c0f0296010 [10] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.46&id=ffea838686b82fbb2801cdfad6ba5309d15c032d Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
61 lines
2.2 KiB
Diff
61 lines
2.2 KiB
Diff
From 4dccc6e881f1e8d93c895a4b89e266d79e2746df Mon Sep 17 00:00:00 2001
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From: Jonathan Bell <jonathan@raspberrypi.org>
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Date: Mon, 26 Oct 2020 14:03:35 +0000
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Subject: [PATCH] xhci: quirks: add link TRB quirk for VL805
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The VL805 controller can't cope with the TR Dequeue Pointer for an endpoint
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being set to a Link TRB. The hardware-maintained endpoint context ends up
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stuck at the address of the Link TRB, leading to erroneous ring expansion
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events whenever the enqueue pointer wraps to the dequeue position.
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If the search for the end of the current TD and ring cycle state lands on
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a Link TRB, move to the next segment.
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See: https://github.com/raspberrypi/linux/issues/3919
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Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
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---
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drivers/usb/host/xhci-pci.c | 1 +
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drivers/usb/host/xhci-ring.c | 9 +++++++++
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drivers/usb/host/xhci.h | 1 +
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3 files changed, 11 insertions(+)
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--- a/drivers/usb/host/xhci-pci.c
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+++ b/drivers/usb/host/xhci-pci.c
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@@ -300,6 +300,7 @@ static void xhci_pci_quirks(struct devic
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if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) {
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xhci->quirks |= XHCI_LPM_SUPPORT;
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xhci->quirks |= XHCI_EP_CTX_BROKEN_DCS;
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+ xhci->quirks |= XHCI_AVOID_DQ_ON_LINK;
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}
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if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
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--- a/drivers/usb/host/xhci-ring.c
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+++ b/drivers/usb/host/xhci-ring.c
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@@ -667,6 +667,15 @@ static int xhci_move_dequeue_past_td(str
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} while (!cycle_found || !td_last_trb_found);
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deq_found:
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+ /*
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+ * Quirk: the xHC does not correctly parse link TRBs if the HW Dequeue
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+ * pointer is set to one. Advance to the next TRB (and next segment).
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+ */
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+ if (xhci->quirks & XHCI_AVOID_DQ_ON_LINK && trb_is_link(new_deq)) {
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+ if (link_trb_toggles_cycle(new_deq))
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+ new_cycle ^= 0x1;
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+ next_trb(xhci, ep_ring, &new_seg, &new_deq);
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+ }
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/* Don't update the ring cycle state for the producer (us). */
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addr = xhci_trb_virt_to_dma(new_seg, new_deq);
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--- a/drivers/usb/host/xhci.h
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+++ b/drivers/usb/host/xhci.h
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@@ -1903,6 +1903,7 @@ struct xhci_hcd {
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#define XHCI_NO_SOFT_RETRY BIT_ULL(40)
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#define XHCI_BROKEN_D3COLD BIT_ULL(41)
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#define XHCI_EP_CTX_BROKEN_DCS BIT_ULL(42)
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+#define XHCI_AVOID_DQ_ON_LINK BIT_ULL(43)
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unsigned int num_active_eps;
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unsigned int limit_active_eps;
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