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Commit 026a6fef authored by Gadiyar, Anand's avatar Gadiyar, Anand Committed by Tony Lindgren
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ARM: OMAP: Fix DMA CLINK mask, clear spurious interrupt 



Fix CLINK mask, clear spurious interrupt.

Signed-off-by: default avatarGadiyar, Anand <gadiyar@ti.com>
Signed-off-by: default avatarKevin Hilman <khilman@mvista.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent f4b6a7ef

arch/arm/plat-omap/dma.c

+3 −2
Original line number Diff line number Diff line
@@ -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)) {