linux-kernel - Re: [PATCH] [RESEND] media: tea5764: reconcile Kconfig symbol and macro

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Date:	Sun, 30 Oct 2011 09:43:11 -0700
From:	Randy Dunlap <rdunlap@...otime.net>
To:	Paul Bolle <pebolle@...cali.nl>
CC:	Mauro Carvalho Chehab <mchehab@...radead.org>,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [RESEND] media: tea5764: reconcile Kconfig symbol and
 macro

On 10/30/11 05:08, Paul Bolle wrote:
> The Kconfig symbol RADIO_TEA5764_XTAL is unused. The code does use a
> RADIO_TEA5764_XTAL macro, but does that rather peculiar. But there seems
> to be a way to keep both. (The easiest way out would be to rip out both
> the Kconfig symbol and the macro.)
> 
> Note there's also a module parameter 'use_xtal' to influence all this.

It's curious that the module parameter is only available when the driver
is builtin (=y) but not built as a loadable module (=m):

config RADIO_TEA5764_XTAL
	bool "TEA5764 crystal reference"
	depends on RADIO_TEA5764=y
	default y

> 
> Signed-off-by: Paul Bolle <pebolle@...cali.nl>
> ---
> I didn't dare to submit this a trivial patch. This is still untested. By
> the way, is xtal a common abbreviation of crystal?

Yes, it is.

Acked-by: Randy Dunlap <rdunlap@...otime.net>

Thanks.

>  drivers/media/radio/radio-tea5764.c |    4 +++-
>  1 files changed, 3 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/media/radio/radio-tea5764.c b/drivers/media/radio/radio-tea5764.c
> index 95ddcc4..db20904 100644
> --- a/drivers/media/radio/radio-tea5764.c
> +++ b/drivers/media/radio/radio-tea5764.c
> @@ -128,8 +128,10 @@ struct tea5764_write_regs {
>  	u16 rdsbbl;				/* PAUSEDET & RDSBBL */
>  } __attribute__ ((packed));
>  
> -#ifndef RADIO_TEA5764_XTAL
> +#ifdef CONFIG_RADIO_TEA5764_XTAL
>  #define RADIO_TEA5764_XTAL 1
> +#else
> +#define RADIO_TEA5764_XTAL 0
>  #endif
>  
>  static int radio_nr = -1;


-- 
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
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