On 2/6/2023 7:31 PM, Heikki Krogerus wrote:
On Fri, Feb 03, 2023 at 07:55:14PM +0800, Linyu Yuan wrote:
there is no PM operation for a role switch device,
call device_set_pm_not_required() in usb_role_switch_register() to disable.
Signed-off-by: Linyu Yuan <quic_linyyuan@xxxxxxxxxxx>
Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
as discussion in Re: [PATCH] usb: typec: disable pm for typec class
devices - Heikki Krogerus (kernel.org)
<https://lore.kernel.org/linux-usb/Y+H+8Nt%2F5bgTBv4Y@xxxxxxxxxxxxxxxxx/> ,
please don't merge this change after we have final solution with Heikki.
---
v2: remove cc stable
drivers/usb/roles/class.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c
index eacb46e..b303c64 100644
--- a/drivers/usb/roles/class.c
+++ b/drivers/usb/roles/class.c
@@ -344,6 +344,7 @@ usb_role_switch_register(struct device *parent,
dev_set_drvdata(&sw->dev, desc->driver_data);
dev_set_name(&sw->dev, "%s-role-switch",
desc->name ? desc->name : dev_name(parent));
+ device_set_pm_not_required(&sw->dev);
ret = device_register(&sw->dev);
if (ret) {
--
2.7.4
