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From fd6e7c8949218df6b61a5b9186aba3f9d1d91f75 Mon Sep 17 00:00:00 2001
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From: Mario Limonciello <superm1@gmail.com>
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Date: Mon, 9 May 2022 20:16:26 -0500
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Subject: [PATCH] Set autosuspend delay for Fibocom LG850-GL
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It has been shown that the autosuspend delay for this device enacted
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by modem manager will race with suspend and cause system suspend
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failures.
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This occurred in ChromiumOS on a chromebook, but there is no reason
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it won't happen in regular notebooks with the same WWAN. To avoid
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the failure delay autosuspend to a frequency longer than the polling
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rate used by modem manager.
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Link: https://chromium-review.googlesource.com/c/chromiumos/overlays/board-overlays/+/3635003
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Link: https://github.com/freedesktop/ModemManager/blob/43e76bf1bbca8207e37d3fbddfed4bb8578f0170/src/mm-iface-modem.c#L1633
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(cherry picked from commit f32049eda3b06deaae3d6d7d06a9dfd16528c443)
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Related: #2087778
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---
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hwdb.d/60-autosuspend.hwdb | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/hwdb.d/60-autosuspend.hwdb b/hwdb.d/60-autosuspend.hwdb
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index 323611d000..07f7fa9344 100644
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--- a/hwdb.d/60-autosuspend.hwdb
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+++ b/hwdb.d/60-autosuspend.hwdb
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@@ -75,13 +75,18 @@ usb:v0627p0001:*QEMU USB Tablet*
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ID_AUTOSUSPEND=1
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#########################################
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-# Sierra Wireless
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+# WWAN
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#########################################
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# Sierra Wireless EM7345 4G LTE modem
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usb:v1199pA001*
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ID_AUTOSUSPEND=1
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+# Fibocom LG850-GL
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+usb:v2CB7p0007*
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+ ID_AUTOSUSPEND=1
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+ ID_AUTOSUSPEND_DELAY_MS=7000
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+
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#########################################
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# Wacom
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#########################################
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