Re: [PATCH 1/2] UPSTREAM: usb: roles: Switch on role-switch uevent reporting

[Bryan O'Donoghue]

On 18/05/2020 17:14, Bryan O'Donoghue wrote:
> Right now we don't report to user-space a role switch when doing a
> usb_role_switch_set_role() despite having registered the uevent callbacks.
>
> This patch switches on the notifications allowing user-space to see
> role-switch change notifications and subsequently determine the current
> controller data-role.
>
> example:
> PFX=/devices/platform/soc/78d9000.usb/ci_hdrc.0
>
> root@somebox# udevadm monitor -p
>
> KERNEL[49.894994] change $PFX/usb_role/ci_hdrc.0-role-switch (usb_role)
> ACTION=change
> DEVPATH=$PFX/usb_role/ci_hdrc.0-role-switch
> SUBSYSTEM=usb_role
> DEVTYPE=usb_role_switch
> USB_ROLE_SWITCH=ci_hdrc.0-role-switch
> SEQNUM=2432
>
> Cc: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Cc: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
> Cc: Suzuki K Poulose <suzuki.poulose@xxxxxxx>
> Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
> Cc: Wen Yang <wenyang@xxxxxxxxxxxxxxxxx>
> Cc: chenqiwu <chenqiwu@xxxxxxxxxx>
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
> Link: https://lore.kernel.org/r/20200508162937.2566818-1-bryan.odonoghue@xxxxxxxxxx
> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> [cherry-pick commit 3e63cff384e625f09758ce8f4d01ae3033402b63 upstream]
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>

oops, applying this to a local tree.

Please ignore