linux-kernel - Re: [PATCH 6/8] serial: imx: bit &/| confusion

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Date:	Thu, 21 Jan 2010 14:34:07 +0100
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Greg Kroah-Hartman <gregkh@...e.de>
Cc:	linux-kernel@...r.kernel.org, Roel Kluin <roel.kluin@...il.com>,
	Alan Cox <alan@...ux.intel.com>,
	Fabian Godehardt <fg@...ix.com>,
	Daniel Glöckner <dg@...ix.com>,
	Russell King <rmk@....linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 6/8] serial: imx: bit &/| confusion

On Wed, Jan 20, 2010 at 03:50:01PM -0800, Greg Kroah-Hartman wrote:
> From: Roel Kluin <roel.kluin@...il.com>
> 
> Since UCR1_UARTEN is defined 1, the port was always treated as enabled.
> 
> Signed-off-by: Roel Kluin <roel.kluin@...il.com>
> Cc: Alan Cox <alan@...ux.intel.com>
> Acked-by: Oskar Schirmer <os@...ix.com>
> Cc: Sascha Hauer <s.hauer@...gutronix.de>
> Cc: Fabian Godehardt <fg@...ix.com>
> Cc: Daniel Glöckner <dg@...ix.com>
> Cc: Russell King <rmk@....linux.org.uk>
> Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

Acked-by: Sascha Hauer <s.hauer@...gutronix.de>

> ---
>  drivers/serial/imx.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
> index 18130f1..60d665a 100644
> --- a/drivers/serial/imx.c
> +++ b/drivers/serial/imx.c
> @@ -1088,7 +1088,7 @@ imx_console_get_options(struct imx_port *sport, int *baud,
>  			   int *parity, int *bits)
>  {
>  
> -	if ( readl(sport->port.membase + UCR1) | UCR1_UARTEN ) {
> +	if (readl(sport->port.membase + UCR1) & UCR1_UARTEN) {
>  		/* ok, the port was enabled */
>  		unsigned int ucr2, ubir,ubmr, uartclk;
>  		unsigned int baud_raw;
> -- 
> 1.6.5.7
> 
> 

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