From cbb23d5572f0186f193b1af65a7994f2d40b1d43 Mon Sep 17 00:00:00 2001 From: JC Kuo Date: Thu, 12 Mar 2020 16:45:13 +0200 Subject: [PATCH] usb: host: xhci-tegra: Tegra186/Tegra194 LPM Tegra186 and Tegra194 xHC supports USB 3.0 LPM. This commit enables XHCI_LPM_SUPPORT quirk for Tegra186 and Tegra194. Signed-off-by: JC Kuo Acked-by: Thierry Reding Signed-off-by: Mathias Nyman Link: https://lore.kernel.org/r/20200312144517.1593-6-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-tegra.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index 8163aefc6c6b..a6e36b3c968f 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -203,6 +203,7 @@ struct tegra_xusb_soc { bool scale_ss_clock; bool has_ipfs; + bool lpm_support; }; struct tegra_xusb_context { @@ -1779,6 +1780,7 @@ static const struct tegra_xusb_soc tegra186_soc = { .data_out = 0xec, .owner = 0xf0, }, + .lpm_support = true, }; static const char * const tegra194_supply_names[] = { @@ -1808,6 +1810,7 @@ static const struct tegra_xusb_soc tegra194_soc = { .data_out = 0x70, .owner = 0x74, }, + .lpm_support = true, }; MODULE_FIRMWARE("nvidia/tegra194/xusb.bin"); @@ -1832,7 +1835,11 @@ static struct platform_driver tegra_xusb_driver = { 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; } static int tegra_xhci_setup(struct usb_hcd *hcd) -- 2.25.1