mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
synced 2025-01-07 14:32:23 +00:00
7e7a5dee49
The previous work to allow the MCU to be resumed correctly after sleep and resume tried to take the shortest possible time. However as work continues in various other parts of the s2idle subsystems it has shown that it wasn't entirely reliable. If the MCU disable/enable call is done correctly the MCU fully removes its USB endpoints, and this shows as a full USB device reconnection on resume. When we tried to short this as much as possible sometimes the MCU doesn't get to complete what it needs to do before going to low-power and this affected the reconnection. Through trial it is found that the minimum time required is approx 1200ms to allow a proper disconnect and disable, and the same amount of time on resume is required to prevent a rapid disconnect/reconnect happening on seemingly random occasions. To be safe the time is now 1500ms for msleep. Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Luke D. Jones <luke@ljones.dev> Link: https://lore.kernel.org/r/20240404001652.86207-8-luke@ljones.dev Signed-off-by: Hans de Goede <hdegoede@redhat.com> |
||
|---|---|---|
| .. | ||
| arm64 | ||
| chrome | ||
| goldfish | ||
| loongarch | ||
| mellanox | ||
| mips | ||
| olpc | ||
| surface | ||
| x86 | ||
| Kconfig | ||
| Makefile | ||