Commit 62578cbf authored by Kevin Hilman's avatar Kevin Hilman Committed by Russell King
Browse files

[ARM] 4138/1: AACI: multiple channel support for IRQ handling 



Add AACI channel support to interrupt handler.
Also, clear underrun interrupt for correct channel.

Signed-off-by: default avatarKevin Hilman <khilman@mvista.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent f69eda00

sound/arm/aaci.c

+4 −3
Original line number Diff line number Diff line
@@ -164,10 +164,11 @@ static inline void aaci_chan_wait_ready(struct aaci_runtime *aacirun) 
/*

 * Interrupt support.

 */

static void aaci_fifo_irq(struct aaci *aaci, u32 mask)

static void aaci_fifo_irq(struct aaci *aaci, int channel, u32 mask)

{

	if (mask & ISR_URINTR) {

		writel(ICLR_TXUEC1, aaci->base + AACI_INTCLR);

		dev_dbg(&aaci->dev->dev, "TX underrun on chan %d\n", channel);

		writel(ICLR_TXUEC1 << channel, aaci->base + AACI_INTCLR);

	}



	if (mask & ISR_TXINTR) {
@@ -233,7 +234,7 @@ static irqreturn_t aaci_irq(int irq, void *devid) 
		u32 m = mask;

		for (i = 0; i < 4; i++, m >>= 7) {

			if (m & 0x7f) {

				aaci_fifo_irq(aaci, m);

				aaci_fifo_irq(aaci, i, m);

			}

		}

	}