[PATCH V3 10/19] OMAP3+: SR: enable/disable SR only on need

[Kevin Hilman]

Nishanth Menon <nm at ti.com> writes:

> Since we already know the state of the autocomp enablement, we can
> see if the requested state is different from the current state and
> enable/disable SR only on the need basis.
>
> Signed-off-by: Nishanth Menon <nm at ti.com>

Thanks, queuing for 2.6.40.

Kevin

> ---
>  arch/arm/mach-omap2/smartreflex.c |   11 +++++++----
>  1 files changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
> index f9057ad..2b6fdc7 100644
> --- a/arch/arm/mach-omap2/smartreflex.c
> +++ b/arch/arm/mach-omap2/smartreflex.c
> @@ -806,10 +806,13 @@ static int omap_sr_autocomp_store(void *data, u64 val)
>  		return -EINVAL;
>  	}
>  
> -	if (!val)
> -		sr_stop_vddautocomp(sr_info);
> -	else
> -		sr_start_vddautocomp(sr_info);
> +	/* control enable/disable only if there is a delta in value */
> +	if (sr_info->autocomp_active != val) {
> +		if (!val)
> +			sr_stop_vddautocomp(sr_info);
> +		else
> +			sr_start_vddautocomp(sr_info);
> +	}
>  
>  	return 0;
>  }