Re: [PATCH] serial: core: Start managing serial controllers to enable runtime PM

[Tony Lindgren]

* Andy Shevchenko <andriy.shevchenko@xxxxxxxxx> [220411 13:26]:
> On Mon, Apr 11, 2022 at 03:02:18PM +0300, Tony Lindgren wrote:
> > +struct serial_controller {
> > +	struct uart_driver *drv;		/* For port specific uart_state */
> 
> > +	struct mutex lock;			/* For changing enabled_count */
> > +	int enabled_count;			/* Enable count for runtime PM */
> 
> Wondering if we may use kref instead which will check for saturation as well.

Thanks for the quick review, using kref is a good idea.

Regards,

Tony