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,