diff options
| author | Tejas Joglekar <Tejas.Joglekar@synopsys.com> | 2020-12-08 12:29:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-09 16:32:00 +0300 |
| commit | bac1ec551434697ca3c5bb5d258811ba5446866a (patch) | |
| tree | d82666872b1becc3b3766329d2091e0fcff57c1a /drivers/usb/host/xhci-plat.c | |
| parent | b175d273d4e4100b66e68f0675fef7a3c07a7957 (diff) | |
| download | linux-bac1ec551434697ca3c5bb5d258811ba5446866a.tar.xz | |
usb: xhci: Set quirk for XHCI_SG_TRB_CACHE_SIZE_QUIRK
This commit uses the private data passed by parent device
to set the quirk for Synopsys xHC. This patch fixes the
SNPS xHC hang issue when the data is scattered across
small buffers which does not make atleast MPS size for
given TRB cache size of SNPS xHC.
Signed-off-by: Tejas Joglekar <joglekar@synopsys.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20201208092912.1773650-2-mathias.nyman@linux.intel.com
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-plat.c')
| -rw-r--r-- | drivers/usb/host/xhci-plat.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index aa2d35f98200..4d34f6005381 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -333,6 +333,9 @@ static int xhci_plat_probe(struct platform_device *pdev) if (priv && (priv->quirks & XHCI_SKIP_PHY_INIT)) hcd->skip_phy_initialization = 1; + if (priv && (priv->quirks & XHCI_SG_TRB_CACHE_SIZE_QUIRK)) + xhci->quirks |= XHCI_SG_TRB_CACHE_SIZE_QUIRK; + ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret) goto disable_usb_phy; |