[PATCH 05/21] atm: he: use mdelay instead of large udelay constants

David Laight David.Laight at ACULAB.COM
Fri Apr 26 04:21:59 EDT 2013


> ARM cannot handle udelay for more than 2 miliseconds, so we
> should use mdelay instead for those.
...
> @@ -1055,7 +1055,7 @@ static int he_start(struct atm_dev *dev)
>  	he_writel(he_dev, 0x0, RESET_CNTL);
>  	he_writel(he_dev, 0xff, RESET_CNTL);
> 
> -	udelay(16*1000);	/* 16 ms */
> +	mdelay(16);	/* 16 ms */
>  	status = he_readl(he_dev, RESET_CNTL);

16ms seems a long time to spin.
I'd have thought a sleep would be more appropriate.
Since this looks like timing a hardware reset pulse
it can't matter if it is somewhat longer.

	David






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