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| author | JC Kuo <jckuo@nvidia.com> | 2020-03-12 16:45:13 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-12 17:34:48 +0100 |
| commit | cbb23d5572f0186f193b1af65a7994f2d40b1d43 (patch) | |
| tree | 74f0b4b0460ae3f9c8a3c11eb7e741700683596d /drivers/usb/host/xhci-tegra.c | |
| parent | 2170a98d56cc86cef71134ac213aede2fdf64021 (diff) | |
| download | linux-cbb23d5572f0186f193b1af65a7994f2d40b1d43.tar.bz2 | |
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 <jckuo@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200312144517.1593-6-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-tegra.c')
| -rw-r--r-- | drivers/usb/host/xhci-tegra.c | 7 |
1 files changed, 7 insertions, 0 deletions
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) |