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-rw-r--r--arch/arm/plat-omap/dma.c13
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,