From: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
balbi@ti.com, linux-omap@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, tony@atomide.com
Subject: Re: [RFC PATCH 1/4] tty: serial: 8250 core: provide a function to export uart_8250_port
Date: Mon, 7 Jul 2014 14:09:11 +0100 [thread overview]
Message-ID: <20140707140911.5ee517d2@alan.etchedpixels.co.uk> (raw)
In-Reply-To: <1404491651-1388-1-git-send-email-bigeasy@linutronix.de>
On Fri, 4 Jul 2014 18:34:08 +0200
Sebastian Andrzej Siewior <bigeasy@linutronix.de> wrote:
> There is no access to access a struct uart_8250_port for a specific
> line. This is only required outside of the 8250/uart callbacks like for
> devices' suspend & remove callbacks. For those the 8250-core provides
> wrapper like serial8250_unregister_port() which passes the struct
> to the proper function based on the line argument.
>
> For runtime suspend I need access to this struct not only to make
> serial_out() work but also to properly restore up->ier and up->mcr.
Please update the patch to clearly describe the locking
assumptions/requirements for the caller (and not to use it unless you
have no other choice)
next prev parent reply other threads:[~2014-07-07 13:10 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-04 16:34 [RFC PATCH 1/4] tty: serial: 8250 core: provide a function to export uart_8250_port Sebastian Andrzej Siewior
2014-07-04 16:34 ` [RFC PATCH 2/4] tty: serial: 8250 core: allow to overwrite & export serial8250_startup() Sebastian Andrzej Siewior
2014-07-07 13:09 ` One Thousand Gnomes
2014-07-09 17:39 ` Sebastian Andrzej Siewior
2014-07-04 16:34 ` [RFC PATCH 3/4] tty: serial: 8250 core: add runtime pm Sebastian Andrzej Siewior
2014-07-07 13:20 ` One Thousand Gnomes
2014-07-09 11:17 ` Tony Lindgren
2014-07-09 11:35 ` Sebastian Andrzej Siewior
2014-07-09 11:48 ` Tony Lindgren
2014-07-09 12:42 ` Sebastian Andrzej Siewior
2014-07-09 15:12 ` Tony Lindgren
2014-07-09 16:32 ` Sebastian Andrzej Siewior
2014-07-10 6:43 ` Tony Lindgren
2014-07-04 16:34 ` [RFC PATCH 4/4] tty: serial: Add 8250-core based omap driver v2 Sebastian Andrzej Siewior
2014-07-07 13:09 ` One Thousand Gnomes [this message]
2014-07-09 17:23 ` [RFC PATCH 1/4] tty: serial: 8250 core: provide a function to export uart_8250_port Sebastian Andrzej Siewior
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