openwrt/target/linux/apm821xx/patches-5.4/802-usb-xhci-force-msi-renesas-xhci.patch
John Audia a47279154e kernel: bump 5.4 to 5.4.75
Manually rebased patches:
  bcm27xx:
    patches-5.4/950-0267-xhci-add-quirk-for-host-controllers-that-don-t-updat.patch
  bcm53xx:
    patches-5.4/180-usb-xhci-add-support-for-performing-fake-doorbell.patch
  layerscape:
    patches-5.4/802-can-0025-can-flexcan-add-LPSR-mode-support-for-i.MX7D.patch
    patches-5.4/808-i2c-0002-MLK-10893-i2c-imx-add-irqf_no_suspend.patch
    patches-5.4/820-usb-0016-MLK-16735-usb-host-add-XHCI_CDNS_HOST-flag.patch

Removed since could be reverse-applied by quilt:
  mediatek:
    patches-5.4/0700-arm-dts-mt7623-add-missing-pause-for-switchport.patch

All modifications made by update_kernel.sh

Build system: x86_64
Build-tested: ipq806x/R7800, ath79/generic, bcm27xx/bcm2711, x86_64
Run-tested: ipq806x/R7800, x86_64

No dmesg regressions, everything functional

Signed-off-by: John Audia <graysky@archlinux.us>
Tested-by: Curtis Deptuck <curtdept@me.com> [x86_64]

Rebase of 802-can-0025-can-flexcan-add-LPSR-mode-support-for-i.MX7D.patch
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
2020-11-10 13:11:32 +01:00

54 lines
1.6 KiB
Diff

From a0dc613140bab907a3d5787a7ae7b0638bf674d0 Mon Sep 17 00:00:00 2001
From: Christian Lamparter <chunkeey@gmail.com>
Date: Thu, 23 Jun 2016 20:28:20 +0200
Subject: [PATCH] usb: xhci: force MSI for uPD720201 and
uPD720202
The APM82181 does not support MSI-X. When probed, it will
produce a noisy warning.
---
drivers/usb/host/pci-quirks.c | 362 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 362 insertions(+)
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -283,6 +283,7 @@ static void xhci_pci_quirks(struct devic
pdev->device == 0x0015) {
xhci->quirks |= XHCI_RESET_ON_RESUME;
xhci->quirks |= XHCI_ZERO_64B_REGS;
+ xhci->quirks |= XHCI_FORCE_MSI;
}
if (pdev->vendor == PCI_VENDOR_ID_VIA)
xhci->quirks |= XHCI_RESET_ON_RESUME;
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -423,10 +423,14 @@ static int xhci_try_enable_msi(struct us
free_irq(hcd->irq, hcd);
hcd->irq = 0;
- ret = xhci_setup_msix(xhci);
- if (ret)
- /* fall back to msi*/
+ if (xhci->quirks & XHCI_FORCE_MSI) {
ret = xhci_setup_msi(xhci);
+ } else {
+ ret = xhci_setup_msix(xhci);
+ if (ret)
+ /* fall back to msi*/
+ ret = xhci_setup_msi(xhci);
+ }
if (!ret) {
hcd->msi_enabled = 1;
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1881,6 +1881,7 @@ struct xhci_hcd {
struct xhci_hub usb2_rhub;
struct xhci_hub usb3_rhub;
/* support xHCI 1.0 spec USB2 hardware LPM */
+#define XHCI_FORCE_MSI (1 << 24)
unsigned hw_lpm_support:1;
/* Broken Suspend flag for SNPS Suspend resume issue */
unsigned broken_suspend:1;