[PATCHv2] omap2/3: dmtimer: Enable autoidle
Santosh Shilimkar
santosh.shilimkar at ti.com
Tue Feb 15 10:37:53 EST 2011
> -----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 at 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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