* [PATCH 1/3] DSS PM_WKEN to refill DMA
@ 2009-12-22 9:37 Y, Kishore
2010-01-13 23:47 ` Kevin Hilman
0 siblings, 1 reply; 2+ messages in thread
From: Y, Kishore @ 2009-12-22 9:37 UTC (permalink / raw)
To: Tomi Valkeinen (tomi.valkeinen@nokia.com), Kevin Hilman
Cc: linux-omap@vger.kernel.org
From: Subramani Venkatesh <x0108988@ti.com>
Currently, DSS doesnot wakeup when there is a DMA request.
DSS wake up event must be enabled so that the DMA request to refill
the FIFO will wake up the CORE domain.
Signed-off-by: Subramani Venkatesh <subramani.venkatesh@windriver.com>
---
arch/arm/mach-omap2/pm34xx.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 81ed252..2d11b80 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -726,6 +726,11 @@ static void __init prcm_setup_regs(void)
prm_write_mod_reg(0, OMAP3430_IVA2_MOD, PM_WKDEP);
prm_write_mod_reg(0, MPU_MOD, PM_WKDEP);
prm_write_mod_reg(0, OMAP3430_DSS_MOD, PM_WKDEP);
+
+ /* Enable PM_WKEN to support DSS LPR */
+ prm_write_mod_reg(OMAP3430_PM_WKEN_DSS_EN_DSS,
+ OMAP3430_DSS_MOD, PM_WKEN);
+
prm_write_mod_reg(0, OMAP3430_NEON_MOD, PM_WKDEP);
prm_write_mod_reg(0, OMAP3430_CAM_MOD, PM_WKDEP);
prm_write_mod_reg(0, OMAP3430_PER_MOD, PM_WKDEP);
--
1.5.4.3
Regards,
Kishore Y
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 1/3] DSS PM_WKEN to refill DMA
2009-12-22 9:37 [PATCH 1/3] DSS PM_WKEN to refill DMA Y, Kishore
@ 2010-01-13 23:47 ` Kevin Hilman
0 siblings, 0 replies; 2+ messages in thread
From: Kevin Hilman @ 2010-01-13 23:47 UTC (permalink / raw)
To: Y, Kishore
Cc: Tomi Valkeinen (tomi.valkeinen@nokia.com),
linux-omap@vger.kernel.org
"Y, Kishore" <kishore.y@ti.com> writes:
> From: Subramani Venkatesh <x0108988@ti.com>
>
> Currently, DSS doesnot wakeup when there is a DMA request.
> DSS wake up event must be enabled so that the DMA request to refill
> the FIFO will wake up the CORE domain.
>
> Signed-off-by: Subramani Venkatesh <subramani.venkatesh@windriver.com>
Adding this one to pm-fixes queue for 2.6.33-rc.
The rest of this series needs to go upstream via Tomi's DSS2 tree.
Kevin
> ---
> arch/arm/mach-omap2/pm34xx.c | 5 +++++
> 1 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
> index 81ed252..2d11b80 100644
> --- a/arch/arm/mach-omap2/pm34xx.c
> +++ b/arch/arm/mach-omap2/pm34xx.c
> @@ -726,6 +726,11 @@ static void __init prcm_setup_regs(void)
> prm_write_mod_reg(0, OMAP3430_IVA2_MOD, PM_WKDEP);
> prm_write_mod_reg(0, MPU_MOD, PM_WKDEP);
> prm_write_mod_reg(0, OMAP3430_DSS_MOD, PM_WKDEP);
> +
> + /* Enable PM_WKEN to support DSS LPR */
> + prm_write_mod_reg(OMAP3430_PM_WKEN_DSS_EN_DSS,
> + OMAP3430_DSS_MOD, PM_WKEN);
> +
> prm_write_mod_reg(0, OMAP3430_NEON_MOD, PM_WKDEP);
> prm_write_mod_reg(0, OMAP3430_CAM_MOD, PM_WKDEP);
> prm_write_mod_reg(0, OMAP3430_PER_MOD, PM_WKDEP);
> --
> 1.5.4.3
>
>
> Regards,
> Kishore Y
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