From 0a4776205b16d038ec6fedef2094951fcb6f441b Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Fri, 2 Jun 2023 17:40:02 +0300 Subject: [PATCH] xhci: get rid of XHCI_PLAT quirk that used to prevent MSI setup The XHCI_PLAT quirk was only needed to ensure non-PCI xHC host avoided setting up MSI interrupts in generic xhci codepaths. The MSI setup code is now moved to PCI specific xhci-pci.c file so the quirk is no longer needed. Remove setting the XHCI_PLAT quirk for HiSilocon SoC xHC, NVIDIA Tegra xHC, MediaTek xHC, the generic xhci-plat driver, and the checks for XHCI_PLAT in xhci-pci.c MSI setup code. Signed-off-by: Mathias Nyman Message-ID: <20230602144009.1225632-5-mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-histb.c | 12 +----------- drivers/usb/host/xhci-mtk.c | 6 ------ drivers/usb/host/xhci-pci.c | 7 ------- drivers/usb/host/xhci-plat.c | 7 +------ drivers/usb/host/xhci-tegra.c | 1 - drivers/usb/host/xhci.h | 2 +- 6 files changed, 3 insertions(+), 32 deletions(-) diff --git a/drivers/usb/host/xhci-histb.c b/drivers/usb/host/xhci-histb.c index d8aba07..f9a4a4b 100644 --- a/drivers/usb/host/xhci-histb.c +++ b/drivers/usb/host/xhci-histb.c @@ -164,16 +164,6 @@ static void xhci_histb_host_disable(struct xhci_hcd_histb *histb) clk_disable_unprepare(histb->bus_clk); } -static void xhci_histb_quirks(struct device *dev, struct xhci_hcd *xhci) -{ - /* - * As of now platform drivers don't provide MSI support so we ensure - * here that the generic code does not try to make a pci_dev from our - * dev struct in order to setup MSI - */ - xhci->quirks |= XHCI_PLAT; -} - /* called during probe() after chip reset completes */ static int xhci_histb_setup(struct usb_hcd *hcd) { @@ -186,7 +176,7 @@ static int xhci_histb_setup(struct usb_hcd *hcd) return ret; } - return xhci_gen_setup(hcd, xhci_histb_quirks); + return xhci_gen_setup(hcd, NULL); } static const struct xhci_driver_overrides xhci_histb_overrides __initconst = { diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index 8d9a55b..51d9d4d 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -418,12 +418,6 @@ static void xhci_mtk_quirks(struct device *dev, struct xhci_hcd *xhci) struct usb_hcd *hcd = xhci_to_hcd(xhci); struct xhci_hcd_mtk *mtk = hcd_to_mtk(hcd); - /* - * As of now platform drivers don't provide MSI support so we ensure - * here that the generic code does not try to make a pci_dev from our - * dev struct in order to setup MSI - */ - xhci->quirks |= XHCI_PLAT; xhci->quirks |= XHCI_MTK_HOST; /* * MTK host controller gives a spurious successful event after a diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 69a5cb7..611703f 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -108,9 +108,6 @@ static void xhci_cleanup_msix(struct xhci_hcd *xhci) struct usb_hcd *hcd = xhci_to_hcd(xhci); struct pci_dev *pdev = to_pci_dev(hcd->self.controller); - if (xhci->quirks & XHCI_PLAT) - return; - /* return if using legacy interrupt */ if (hcd->irq > 0) return; @@ -208,10 +205,6 @@ static int xhci_try_enable_msi(struct usb_hcd *hcd) struct pci_dev *pdev; int ret; - /* The xhci platform device has set up IRQs through usb_add_hcd. */ - if (xhci->quirks & XHCI_PLAT) - return 0; - pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller); /* * Some Fresco Logic host controllers advertise MSI, but fail to diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index a52d73c..1d902d1 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -78,12 +78,7 @@ static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci) { struct xhci_plat_priv *priv = xhci_to_priv(xhci); - /* - * As of now platform drivers don't provide MSI support so we ensure - * here that the generic code does not try to make a pci_dev from our - * dev struct in order to setup MSI - */ - xhci->quirks |= XHCI_PLAT | priv->quirks; + xhci->quirks |= priv->quirks; } /* called during probe() after chip reset completes */ diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index f124483..6ca8a37 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -2663,7 +2663,6 @@ static void tegra_xhci_quirks(struct device *dev, struct xhci_hcd *xhci) { struct tegra_xusb *tegra = dev_get_drvdata(dev); - xhci->quirks |= XHCI_PLAT; if (tegra && tegra->soc->lpm_support) xhci->quirks |= XHCI_LPM_SUPPORT; } diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index f845c15..56e318c 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1874,7 +1874,7 @@ struct xhci_hcd { #define XHCI_SPURIOUS_REBOOT BIT_ULL(13) #define XHCI_COMP_MODE_QUIRK BIT_ULL(14) #define XHCI_AVOID_BEI BIT_ULL(15) -#define XHCI_PLAT BIT_ULL(16) +#define XHCI_PLAT BIT_ULL(16) /* Deprecated */ #define XHCI_SLOW_SUSPEND BIT_ULL(17) #define XHCI_SPURIOUS_WAKEUP BIT_ULL(18) /* For controllers with a broken beyond repair streams implementation */ -- 2.7.4