diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/820-usb-0021-MLK-22099-usb-host-xhci-do-warm-reset-for-link-state.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/820-usb-0021-MLK-22099-usb-host-xhci-do-warm-reset-for-link-state.patch | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/820-usb-0021-MLK-22099-usb-host-xhci-do-warm-reset-for-link-state.patch b/target/linux/layerscape/patches-5.4/820-usb-0021-MLK-22099-usb-host-xhci-do-warm-reset-for-link-state.patch new file mode 100644 index 0000000000..18c9401ac1 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/820-usb-0021-MLK-22099-usb-host-xhci-do-warm-reset-for-link-state.patch @@ -0,0 +1,28 @@ +From 6921c206918a2bd9882bbf77211d37a063233d95 Mon Sep 17 00:00:00 2001 +From: Li Jun <jun.li@nxp.com> +Date: Thu, 8 Aug 2019 16:13:40 +0800 +Subject: [PATCH] MLK-22099 usb: host: xhci: do warm reset for link state + rxdect + +As some USB3 port will lose link state while system sleep, then +the link state will be at rxdect after resume, we need a warm +reset to bring it back, so add the rxdect condition for CAS +missing. + +Signed-off-by: Li Jun <jun.li@nxp.com> +--- + drivers/usb/host/xhci-hub.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/drivers/usb/host/xhci-hub.c ++++ b/drivers/usb/host/xhci-hub.c +@@ -1682,7 +1682,8 @@ static bool xhci_port_missing_cas_quirk( + return false; + + if (((portsc & PORT_PLS_MASK) != XDEV_POLLING) && +- ((portsc & PORT_PLS_MASK) != XDEV_COMP_MODE)) ++ ((portsc & PORT_PLS_MASK) != XDEV_COMP_MODE) && ++ ((portsc & PORT_PLS_MASK) != XDEV_RXDETECT)) + return false; + + /* clear wakeup/change bits, and do a warm port reset */ |