2011-06-15 21:12:39

by Ambresh K

Subject: [PATCH] OMAP4: DMTIMER: enable autoidle mode

From: Ambresh K <[email protected]>

Currently autoidle is only enabled for OMAP2/3; by enabling autoidle,
the automatic L4 clock gating strategy is applied based on L4 activity,
otherwise L4 clock to module will be a free running.

Signed-off-by: Ambresh K <[email protected]>
---
arch/arm/plat-omap/dmtimer.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index ee9f6eb..02d0f7a 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -342,8 +342,8 @@ 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())
+ /* Enable autoidle on OMAP2 CPUs. */
+ if (cpu_class_is_omap2())
l |= 0x1 << 0;

/*
--
1.6.0

2011-06-16 04:39:33

by DebBarma, Tarun Kanti

Subject: RE: [PATCH] OMAP4: DMTIMER: enable autoidle mode

> -----Original Message-----
> From: [email protected] [mailto:linux-omap-
> [email protected]] On Behalf Of K, Ambresh
> Sent: Thursday, June 16, 2011 2:43 AM
> To: Tony Lindgren
> Cc: linux-omap; linux-kernel
> Subject: [PATCH] OMAP4: DMTIMER: enable autoidle mode
>
> From: Ambresh K <[email protected]>
>
> Currently autoidle is only enabled for OMAP2/3; by enabling autoidle,
> the automatic L4 clock gating strategy is applied based on L4 activity,
> otherwise L4 clock to module will be a free running.
>
> Signed-off-by: Ambresh K <[email protected]>
> ---
> arch/arm/plat-omap/dmtimer.c | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
> index ee9f6eb..02d0f7a 100644
> --- a/arch/arm/plat-omap/dmtimer.c
> +++ b/arch/arm/plat-omap/dmtimer.c
> @@ -342,8 +342,8 @@ 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())
> + /* Enable autoidle on OMAP2 CPUs. */
> + if (cpu_class_is_omap2())
> l |= 0x1 << 0;
BTW, in the hwmod adaptation series this is taken care by the framework.
--
Tarun
>
> /*
> --
> 1.6.0
>
> --
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