Re: [patch] fix ucb1x00 support on collie

[Russell King <rmk+lkml@arm.linux.org.uk>]

On Sun, Jul 31, 2005 at 03:46:17PM +0200, Pavel Machek wrote:
> Collie is slightly strange; it does not seem to have proper ucb1x00
> ID. With this patch, basic ucb support seems to work and I can get
> interrupts from battery.

Out of interest, what ID does it appear to have?

> diff --git a/drivers/misc/mcp-sa1100.c b/drivers/misc/mcp-sa1100.c
> --- a/drivers/misc/mcp-sa1100.c
> +++ b/drivers/misc/mcp-sa1100.c
> @@ -149,7 +149,7 @@ static int mcp_sa1100_probe(struct devic
>  	    !machine_is_graphicsmaster() && !machine_is_lart()           &&
>  	    !machine_is_omnimeter()      && !machine_is_pfs168()         &&
>  	    !machine_is_shannon()        && !machine_is_simpad()         &&
> -	    !machine_is_yopy())
> +	    !machine_is_yopy()		 && !machine_is_collie())

I think it's about time we did something better with this, like only
registering the platform device on those which use it.

> @@ -181,7 +187,10 @@ static int mcp_sa1100_probe(struct devic
>  
>  	Ser4MCSR = -1;
>  	Ser4MCCR1 = 0;
> -	Ser4MCCR0 = 0x00007f7f | MCCR0_ADM;
> +	if (machine_is_collie()) 
> +		Ser4MCCR0 = MCCR0_ADM | MCCR0_ExtClk;
> +	else
> +		Ser4MCCR0 = 0x00007f7f | MCCR0_ADM;

And this setup should probably be passed as part of the platform device
data.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 Serial core