On ma, 2008-12-01 at 12:50 +0200, Kalle Jokiniemi wrote:
> On ma, 2008-12-01 at 11:06 +0200, Högander Jouni wrote:
> > "ext Kalle Jokiniemi" <ext-kalle.jokiniemi@xxxxxxxxx> writes:
> >
> > > This patch enables MStandby smart-idle mode, autoidle smartidle mode,
> > > and the autoidle bit for DMA4_OCP_SYSCONFIG.
> > >
> > > Signed-off-by: Kalle Jokiniemi <ext-kalle.jokiniemi@xxxxxxxxx>
> > > ---
> > > arch/arm/plat-omap/dma.c | 13 +++++++++++++
> > > arch/arm/plat-omap/include/mach/dma.h | 15 +++++++++++++++
> > > 2 files changed, 28 insertions(+), 0 deletions(-)
> > >
> > > diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
> > > index c4e5ba3..9d8d28c 100644
> > > --- a/arch/arm/plat-omap/dma.c
> > > +++ b/arch/arm/plat-omap/dma.c
> > > @@ -2420,6 +2420,19 @@ static int __init omap_init_dma(void)
> > > if (cpu_class_is_omap2())
> > > setup_irq(INT_24XX_SDMA_IRQ0, &omap24xx_dma_irq);
> > >
> > > + /* Enable smartidle idlemodes and autoidle */
> > > + if (cpu_is_omap34xx()) {
> >
> > I think this can be done for omap2 also.
>
> Probably true. If no other comments come today, I'll post a new patch
> with this change.
Now that I re-checked, there is no SIDLEMODE for omap2. Also in omap2,
setting MIDLEMODE to smartidle cannot be done if cam DMA is used.
So, I think the patch should be as it is, omap3 only.
- Kalle
>
> - Kalle
>
> >
> > > + u32 v = dma_read(OCP_SYSCONFIG);
> > > + v &= ~(DMA_SYSCONFIG_MIDLEMODE_MASK |
> > > + DMA_SYSCONFIG_SIDLEMODE_MASK |
> > > + DMA_SYSCONFIG_AUTOIDLE);
> > > + v |= (DMA_SYSCONFIG_MIDLEMODE(DMA_IDLEMODE_SMARTIDLE) |
> > > + DMA_SYSCONFIG_SIDLEMODE(DMA_IDLEMODE_SMARTIDLE) |
> > > + DMA_SYSCONFIG_AUTOIDLE);
> > > + dma_write(v , OCP_SYSCONFIG);
> > > + }
> > > +
> > > +
> > > /* FIXME: Update LCD DMA to work on 24xx */
> > > if (cpu_class_is_omap1()) {
> > > r = request_irq(INT_DMA_LCD, lcd_dma_irq_handler, 0,
> > > diff --git a/arch/arm/plat-omap/include/mach/dma.h
> > > b/arch/arm/plat-omap/include/mach/dma.h
> >
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