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From: Tony Lindgren <tony@atomide.com>
To: Andy Shevchenko <andriy.shevchenko@intel.com>
Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
	"Jiri Slaby" <jirislaby@kernel.org>,
	"Johan Hovold" <johan@kernel.org>,
	"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
	"Vignesh Raghavendra" <vigneshr@ti.com>,
	linux-serial@vger.kernel.org, linux-omap@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] serial: core: Start managing serial controllers to enable runtime PM
Date: Mon, 11 Apr 2022 16:51:54 +0300	[thread overview]
Message-ID: <YlQyeoCdTtfUc45h@atomide.com> (raw)
In-Reply-To: <YlQsTWcM3is9TGdw@smile.fi.intel.com>

* Andy Shevchenko <andriy.shevchenko@intel.com> [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

  reply	other threads:[~2022-04-11 13:52 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-11 12:02 [PATCH] serial: core: Start managing serial controllers to enable runtime PM Tony Lindgren
2022-04-11 13:25 ` Andy Shevchenko
2022-04-11 13:51   ` Tony Lindgren [this message]
2022-04-11 14:02   ` Tony Lindgren

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