Re: [REGRESSION] usb controller fails to initialize on intel s1200btl
"Rafael J. Wysocki (Intel)" <[email protected]> Thu, 30 Jul 2026 18:16:27 +0200
| Newsgroups | dev.linux.lists.regressions,org.kernel.vger.linux-acpi,org.kernel.vger.linux-usb |
|---|---|
| Message-ID | <CAJZ5v0jByxtQ2tmNm_ZyyBnDMBNjuqQwD_367NRyGNzF7wQtRw@mail.gmail.com> |
--000000000000aeaf7f0657d665e7 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, Jul 30, 2026 at 5:32=E2=80=AFPM Julian Silver <[email protected]> = wrote: > > On 2026-07-30 21:55:14, Rafael J. Wysocki (Intel) wrote: > > Does adding "intel_idle.max_cstate=3D1" to the kernel command line also > > help, by any chance? > > Yes. "intel_idle.max_cstate=3D1" also helps (on kernel 7.1.5). Thanks for checking. Can you please check if the attached patch (on top of the current mainline) helps? --000000000000aeaf7f0657d665e7 Content-Type: text/x-patch; charset="US-ASCII"; name="usb-ehci-pm-qos.patch" Content-Disposition: attachment; filename="usb-ehci-pm-qos.patch" Content-Transfer-Encoding: base64 Content-ID: <f_ms7psosk0> X-Attachment-Id: f_ms7psosk0 LS0tCiBkcml2ZXJzL3VzYi9ob3N0L2VoY2ktcGNpLmMgfCAgIDEwICsrKysrKysrKy0KIDEgZmls ZSBjaGFuZ2VkLCA5IGluc2VydGlvbnMoKyksIDEgZGVsZXRpb24oLSkKCi0tLSBhL2RyaXZlcnMv dXNiL2hvc3QvZWhjaS1wY2kuYworKysgYi9kcml2ZXJzL3VzYi9ob3N0L2VoY2ktcGNpLmMKQEAg LTM4MCw5ICszODAsMTcgQEAgc3RhdGljIGNvbnN0IHN0cnVjdCBlaGNpX2RyaXZlcl9vdmVycmlk ZQogCiBzdGF0aWMgaW50IGVoY2lfcGNpX3Byb2JlKHN0cnVjdCBwY2lfZGV2ICpwZGV2LCBjb25z dCBzdHJ1Y3QgcGNpX2RldmljZV9pZCAqaWQpCiB7CisJc3RydWN0IHBtX3Fvc19yZXF1ZXN0IHJl cTsKKwlpbnQgcmV0OworCiAJaWYgKGlzX2J5cGFzc2VkX2lkKHBkZXYpKQogCQlyZXR1cm4gLUVO T0RFVjsKLQlyZXR1cm4gdXNiX2hjZF9wY2lfcHJvYmUocGRldiwgJmVoY2lfcGNpX2hjX2RyaXZl cik7CisKKwljcHVfbGF0ZW5jeV9xb3NfYWRkX3JlcXVlc3QoJnJlcSwgMTApOworCXJldCA9IHVz Yl9oY2RfcGNpX3Byb2JlKHBkZXYsICZlaGNpX3BjaV9oY19kcml2ZXIpOworCWNwdV9sYXRlbmN5 X3Fvc19yZW1vdmVfcmVxdWVzdCgmcmVxKTsKKworCXJldHVybiByZXQ7CiB9CiAKIHN0YXRpYyB2 b2lkIGVoY2lfcGNpX3JlbW92ZShzdHJ1Y3QgcGNpX2RldiAqcGRldikK --000000000000aeaf7f0657d665e7--