From mboxrd@z Thu Jan  1 00:00:00 1970
From: santosh.shilimkar@ti.com (Santosh Shilimkar)
Date: Tue, 15 Feb 2011 21:07:53 +0530
Subject: [PATCHv2] omap2/3: dmtimer: Enable autoidle
In-Reply-To: <1297787428-5717-1-git-send-email-tero.kristo@nokia.com>
References: <1297787428-5717-1-git-send-email-tero.kristo@nokia.com>
Message-ID: <6038d98e9a2eb2129200f5e08560cf7e@mail.gmail.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

> -----Original Message-----
> From: linux-omap-owner at vger.kernel.org [mailto:linux-omap-
> owner at vger.kernel.org] On Behalf Of Tero Kristo
> Sent: Tuesday, February 15, 2011 10:00 PM
> To: linux-omap at vger.kernel.org
> Cc: linux-arm-kernel at lists.infradead.org
> Subject: [PATCHv2] omap2/3: dmtimer: Enable autoidle
>
> This saves some power. OMAP4 version should check for GPT module ID,
> as
> autoidle is only supported on a subset of these.
>
> Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
> ---
>  arch/arm/plat-omap/dmtimer.c |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-
> omap/dmtimer.c
> index 1d706cf..ee9f6eb 100644
> --- a/arch/arm/plat-omap/dmtimer.c
> +++ b/arch/arm/plat-omap/dmtimer.c
> @@ -342,6 +342,10 @@ static void omap_dm_timer_reset(struct
> omap_dm_timer *timer)
>  	l |= 0x02 << 3;  /* Set to smart-idle mode */
>  	l |= 0x2 << 8;   /* Set clock activity to perserve f-clock on
> idle */
>
> +	/* Enable autoidle on OMAP2 / OMAP3 */
> +	if (cpu_is_omap24xx() || cpu_is_omap34xx())
> +		l |= 0x1 << 0;
> +
We should get rid of this CPU checks. How about adding a flag
and populating it on init for the architectures it supports.


>  	/*
>  	 * Enable wake-up on OMAP2 CPUs.
>  	 */
> --
> 1.7.1
>
> --
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