30 lines
1.0 KiB
Diff
30 lines
1.0 KiB
Diff
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From 0767542941c535ebb156087593426bb1fb25e967 Mon Sep 17 00:00:00 2001
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From: Li Jun <jun.li@nxp.com>
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Date: Tue, 28 Nov 2017 21:43:18 +0800
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Subject: [PATCH] MLK-16604-1 usb: host: xhci-plat: add XHCI_MISSING_CAS quirk
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i.MX8MQ USB3 host needs XHCI_MISSING_CAS quirk to warm reset the port to
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enum the USB3 device plugged in while system sleep, as the port state is
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stuck in polling mode after resume.
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Signed-off-by: Li Jun <jun.li@nxp.com>
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Acked-by: Peter Chen <peter.chen@nxp.com>
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(cherry picked from commit 9f1f4316775a061d3ad46c63f84a377e2ffd015d)
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---
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drivers/usb/host/xhci-plat.c | 4 ++++
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1 file changed, 4 insertions(+)
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--- a/drivers/usb/host/xhci-plat.c
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+++ b/drivers/usb/host/xhci-plat.c
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@@ -291,6 +291,10 @@ static int xhci_plat_probe(struct platfo
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device_property_read_u32(tmpdev, "imod-interval-ns",
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&xhci->imod_interval);
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+
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+ if (device_property_read_bool(tmpdev,
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+ "usb3-resume-missing-cas"))
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+ xhci->quirks |= XHCI_MISSING_CAS;
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}
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hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0);
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