Re: [PATCH v1] usb: typec: tcpm: Return ENOTSUPP for power supply prop writes

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On Mon, Aug 15, 2022 at 08:33:55PM -0700, Badhri Jagan Sridharan wrote:
> When the port does not support USB PD, prevent transition to PD
> only states when power supply property is written. In this case,
> TCPM transitions to SNK_NEGOTIATE_CAPABILITIES
> which should not be the case given that the port is not pd_capable.
> 
> [   84.308251] state change SNK_READY -> SNK_NEGOTIATE_CAPABILITIES [rev3 NONE_AMS]
> [   84.308335] Setting usb_comm capable false
> [   84.323367] set_auto_vbus_discharge_threshold mode:3 pps_active:n vbus:5000 ret:0
> [   84.323376] state change SNK_NEGOTIATE_CAPABILITIES -> SNK_WAIT_CAPABILITIES [rev3 NONE_AMS]
> 
> Signed-off-by: Badhri Jagan Sridharan <badhri@xxxxxxxxxx>
> ---
>  drivers/usb/typec/tcpm/tcpm.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>



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