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authorFlavio Suligoi <f.suligoi@asem.it>2022-12-19 15:47:59 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-17 19:40:56 +0300
commit7171b0e261b17de96490adf053b8bb4b00061bcf (patch)
tree3dfb10942e731c9a992cf0f7ab3f78a6634f3b56 /drivers/cpufreq
parent11cefeb2058f9f2322713b2683be9301556705e2 (diff)
downloadlinux-7171b0e261b17de96490adf053b8bb4b00061bcf.tar.xz
usb: core: hub: disable autosuspend for TI TUSB8041
The Texas Instruments TUSB8041 has an autosuspend problem at high temperature. If there is not USB traffic, after a couple of ms, the device enters in autosuspend mode. In this condition the external clock stops working, to save energy. When the USB activity turns on, ther hub exits the autosuspend state, the clock starts running again and all works fine. At ambient temperature all works correctly, but at high temperature, when the USB activity turns on, the external clock doesn't restart and the hub disappears from the USB bus. Disabling the autosuspend mode for this hub solves the issue. Signed-off-by: Flavio Suligoi <f.suligoi@asem.it> Cc: stable <stable@kernel.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20221219124759.3207032-1-f.suligoi@asem.it Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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