Date: Tue, 30 Nov 2021 21:31:14 GMT From: Vladimir Kondratyev <wulf@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: c508b0818b24 - main - iichid(4): Perform acknowledgement of I2C device interrupt after RESET command Message-ID: <202111302131.1AULVEwM051082@gitrepo.freebsd.org>
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The branch main has been updated by wulf: URL: https://cgit.FreeBSD.org/src/commit/?id=c508b0818b245ea136d6538d68868cb3541f8f8f commit c508b0818b245ea136d6538d68868cb3541f8f8f Author: Vladimir Kondratyev <wulf@FreeBSD.org> AuthorDate: 2021-11-30 21:29:50 +0000 Commit: Vladimir Kondratyev <wulf@FreeBSD.org> CommitDate: 2021-11-30 21:29:50 +0000 iichid(4): Perform acknowledgement of I2C device interrupt after RESET command in sampling mode to workaround firmware bug. This fixes reboot or poweroff on frame.work laptops after first touch. Reported by: many PR: 259230 MFC after: 1 week Tested by: kevans, markj --- sys/dev/iicbus/iichid.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sys/dev/iicbus/iichid.c b/sys/dev/iicbus/iichid.c index d95ffb8add88..a36ed9bb8538 100644 --- a/sys/dev/iicbus/iichid.c +++ b/sys/dev/iicbus/iichid.c @@ -1134,6 +1134,11 @@ iichid_attach(device_t dev) &sc->sampling_hysteresis, 0, "number of missing samples before enabling of slow mode"); hid_add_dynamic_quirk(&sc->hw, HQ_IICHID_SAMPLING); + + if (sc->sampling_rate_slow >= 0) { + pause("iichid", (hz + 999) / 1000); + (void)iichid_cmd_read(sc, NULL, 0, NULL); + } #endif /* IICHID_SAMPLING */ child = device_add_child(dev, "hidbus", -1);
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