Re: usb: typec: driver for TI HD3SS3220 USB Type-C DRP port controller question

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Hi Phil,

On Mon, Jun 20, 2022 at 09:04:10AM +0000, Phil Edworthy wrote:
> Hi Heikki,
> 
> I have a board that uses the TI HD3SS3220 USB Type-C DRP port
> controller [1], however it doesn't have the interrupt line
> connected. How would you recommend I handle this? Should I get
> the driver to poll the i2c registers?
> 
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/usb/typec/hd3ss3220.c?h=v5.19-rc3

If you have some other way of detecting connections on your system,
then we probable could consider some kind of notifier, but as a
general solution for the lack of interrupt, I think polling is the
only way.

I'll add the list, and Aswath and Roger. Aswath and Roger were looking
at the same problem with the tps6598x (tipd) driver.


thanks,

-- 
heikki



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