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authorRajat Khandelwal <rajat.khandelwal@intel.com>2022-11-01 14:50:42 +0300
committerMika Westerberg <mika.westerberg@linux.intel.com>2022-11-07 15:36:47 +0300
commita5cfc9d65879c0d377f732531a2e80ee3a9eebbc (patch)
tree686b07fb4686f4bafe4125deb53c308276bc39bc /drivers/thunderbolt/usb4_port.c
parent2ae18cc2269fc2d05d36bf44a8daa4404fa11dde (diff)
downloadlinux-a5cfc9d65879c0d377f732531a2e80ee3a9eebbc.tar.xz
thunderbolt: Add wake on connect/disconnect on USB4 ports
Wake on connect/disconnect is only supported while runtime suspend for now, which is obviously necessary. It is also not inherently desired for the system to wakeup on Thunderbolt/USB4 hot plug events. However, we can still make user in control of waking up the system in the events of hot plug/unplug. This patch adds 'wakeup' attribute under 'usb4_portX/power' sysfs attribute and only enables wakes on connect/disconnect to the respective port when 'wakeup' is set to 'enabled'. The attribute is set to 'disabled' by default. Signed-off-by: Rajat Khandelwal <rajat.khandelwal@intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/usb4_port.c')
-rw-r--r--drivers/thunderbolt/usb4_port.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/thunderbolt/usb4_port.c b/drivers/thunderbolt/usb4_port.c
index 1a30c0a23286..e355bfd6343f 100644
--- a/drivers/thunderbolt/usb4_port.c
+++ b/drivers/thunderbolt/usb4_port.c
@@ -284,6 +284,9 @@ struct usb4_port *usb4_port_device_add(struct tb_port *port)
}
}
+ if (!tb_is_upstream_port(port))
+ device_set_wakeup_capable(&usb4->dev, true);
+
pm_runtime_no_callbacks(&usb4->dev);
pm_runtime_set_active(&usb4->dev);
pm_runtime_enable(&usb4->dev);