From: JC Kuo <jckuo@xxxxxxxxxx>
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@xxxxxxxxxx>
Acked-by: Thierry Reding <treding@xxxxxxxxxx>
Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
---
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)
--
2.17.1
