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8cc7ac54b6
Manually rebased: generic/backport-5.4/370-netfilter-nf_flow_table-fix-offloaded-connection-tim.patch generic/pending-5.4/800-bcma-get-SoC-device-struct-copy-its-DMA-params-to-th.patch mvebu/patches-5.4/021-arm64-dts-marvell-armada-37xx-Move-PCIe-comphy-handl.patch Removed upstreamed: generic/backport-5.4/040-ARM-8918-2-only-build-return_address-if-needed.patch layerscape/patches-5.4/819-uart-0004-MLK-18137-fsl_lpuart-Fix-loopback-mode.patch All others updated automatically. Compile-tested on: lantiq/xrx200, armvirt/64 Runtime-tested on: lantiq/xrx200, armvirt/64 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
54 lines
1.6 KiB
Diff
54 lines
1.6 KiB
Diff
From a0dc613140bab907a3d5787a7ae7b0638bf674d0 Mon Sep 17 00:00:00 2001
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From: Christian Lamparter <chunkeey@gmail.com>
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Date: Thu, 23 Jun 2016 20:28:20 +0200
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Subject: [PATCH] usb: xhci: force MSI for uPD720201 and
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uPD720202
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The APM82181 does not support MSI-X. When probed, it will
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produce a noisy warning.
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---
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drivers/usb/host/pci-quirks.c | 362 ++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 362 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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@@ -288,6 +288,7 @@ static void xhci_pci_quirks(struct devic
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pdev->device == 0x0015) {
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xhci->quirks |= XHCI_RESET_ON_RESUME;
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xhci->quirks |= XHCI_ZERO_64B_REGS;
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+ xhci->quirks |= XHCI_FORCE_MSI;
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}
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if (pdev->vendor == PCI_VENDOR_ID_VIA)
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xhci->quirks |= XHCI_RESET_ON_RESUME;
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--- a/drivers/usb/host/xhci.c
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+++ b/drivers/usb/host/xhci.c
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@@ -427,10 +427,14 @@ static int xhci_try_enable_msi(struct us
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free_irq(hcd->irq, hcd);
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hcd->irq = 0;
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- ret = xhci_setup_msix(xhci);
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- if (ret)
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- /* fall back to msi*/
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+ if (xhci->quirks & XHCI_FORCE_MSI) {
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ret = xhci_setup_msi(xhci);
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+ } else {
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+ ret = xhci_setup_msix(xhci);
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+ if (ret)
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+ /* fall back to msi*/
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+ ret = xhci_setup_msi(xhci);
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+ }
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if (!ret) {
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hcd->msi_enabled = 1;
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--- a/drivers/usb/host/xhci.h
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+++ b/drivers/usb/host/xhci.h
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@@ -1887,6 +1887,7 @@ struct xhci_hcd {
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struct xhci_hub usb2_rhub;
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struct xhci_hub usb3_rhub;
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/* support xHCI 1.0 spec USB2 hardware LPM */
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+#define XHCI_FORCE_MSI (1 << 24)
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unsigned hw_lpm_support:1;
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/* Broken Suspend flag for SNPS Suspend resume issue */
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unsigned broken_suspend:1;
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