diff options
| author | Kalle Jokiniemi <ext-kalle.jokiniemi@nokia.com> | 2009-06-23 14:30:24 +0400 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2009-06-23 14:30:24 +0400 |
| commit | aecedb94b366d6fb5e2a17ca18a5dc78e593198e (patch) | |
| tree | b29a1fb7d3d22144e4dbd4316895339d6ea3629f /arch/arm/plat-omap/dma.c | |
| parent | 5b0acc59d1bc5c310dfd6976555664f9dcf4dacd (diff) | |
| download | linux-aecedb94b366d6fb5e2a17ca18a5dc78e593198e.tar.xz | |
OMAP3: DMA: Enable idlemodes for DMA OCP
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@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kevin Hilman <khilman@ti.deeprootsystems.com>
Diffstat (limited to 'arch/arm/plat-omap/dma.c')
| -rw-r--r-- | arch/arm/plat-omap/dma.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index def14ec265b3..7677a4a1cef2 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -2457,6 +2457,19 @@ static int __init omap_init_dma(void) setup_irq(irq, &omap24xx_dma_irq); } + /* Enable smartidle idlemodes and autoidle */ + if (cpu_is_omap34xx()) { + 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, |