From 026a6fef55da7239ca0970000eb62b9eab5ba281 Mon Sep 17 00:00:00 2001 From: "Gadiyar, Anand" Date: Sat, 8 Mar 2008 05:49:13 -0800 Subject: [PATCH] ARM: OMAP: Fix DMA CLINK mask, clear spurious interrupt Fix CLINK mask, clear spurious interrupt. Signed-off-by: Gadiyar, Anand Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/dma.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 06293bfcc831..793740686be2 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -1020,12 +1020,12 @@ static void create_dma_lch_chain(int lch_head, int lch_queue) } w = OMAP_DMA_CLNK_CTRL_REG(lch_head); - w &= ~(0x0f); + w &= ~(0x1f); w |= lch_queue; OMAP_DMA_CLNK_CTRL_REG(lch_head) = w; w = OMAP_DMA_CLNK_CTRL_REG(lch_queue); - w &= ~(0x0f); + w &= ~(0x1f); w |= (dma_chan[lch_queue].next_linked_ch); OMAP_DMA_CLNK_CTRL_REG(lch_queue) = w; } @@ -1663,6 +1663,7 @@ static int omap2_dma_handle_ch(int ch) if (!status) { if (printk_ratelimit()) printk(KERN_WARNING "Spurious DMA IRQ for lch %d\n", ch); + omap_writel(1 << ch, OMAP_DMA4_IRQSTATUS_L0); return 0; } if (unlikely(dma_chan[ch].dev_id == -1)) { -- 2.20.1