linux-kernel - Re: [PATCH 8/8] atmel_serial: Kill at91_register_uart

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Date:	28 Sep 2006 11:21:55 +0200
From:	Andrew Victor <andrew@...people.com>
To:	Haavard Skinnemoen <hskinnemoen@...el.com>
Cc:	Russell King <rmk+lkml@....linux.org.uk>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 8/8] atmel_serial: Kill at91_register_uart_fns

hi Haavard,

> at91_register_uart_fns has no users as far as I can see. Let's get
> rid of it.

No.  It is being used.

This interface is used to register board-specific functions that can be
use to control the serial port modem-control lines.

For example, the AT91RM9200 only provides the full modem-control signals
on USART1.  If you need the modem-control signals for any of the other
ports you need to drive some of the GPIO pins manually.  So you need
this hook back into your board-specific file to do that.

Regards,
  Andrew Victor

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