3 files changed, 19 insertions, 19 deletions
diff --git a/drivers/video/ipu.h b/drivers/video/ipu.h
index 3d2741f..091b58f 100644
--- a/drivers/video/ipu.h
+++ b/drivers/video/ipu.h
@@ -176,6 +176,14 @@ typedef union {
 } ipu_channel_params_t;
 
 /*
+ * Enumeration of IPU interrupts.
+ */
+enum ipu_irq_line {
+	IPU_IRQ_DP_SF_END = 448 + 3,
+	IPU_IRQ_DC_FC_1 = 448 + 9,
+};
+
+/*
  * Bitfield of Display Interface signal polarities.
  */
 typedef struct {
diff --git a/drivers/video/ipu_disp.c b/drivers/video/ipu_disp.c
index cefd2dc..bf39a51 100644
--- a/drivers/video/ipu_disp.c
+++ b/drivers/video/ipu_disp.c
@@ -666,13 +666,16 @@ void ipu_dp_dc_disable(ipu_channel_t channel, unsigned char swap)
 	uint32_t csc;
 	uint32_t dc_chan = 0;
 	int timeout = 50;
+	int irq = 0;
 
 	dc_swap = swap;
 
 	if (channel == MEM_DC_SYNC) {
 		dc_chan = 1;
+		irq = IPU_IRQ_DC_FC_1;
 	} else if (channel == MEM_BG_SYNC) {
 		dc_chan = 5;
+		irq = IPU_IRQ_DP_SF_END;
 	} else if (channel == MEM_FG_SYNC) {
 		/* Disable FG channel */
 		dc_chan = 5;
@@ -723,25 +726,11 @@ void ipu_dp_dc_disable(ipu_channel_t channel, unsigned char swap)
 		reg ^= DC_WR_CH_CONF_PROG_DI_ID;
 		__raw_writel(reg, DC_WR_CH_CONF(dc_chan));
 	} else {
-		timeout = 50;
-
-		/* Wait for DC triple buffer to empty */
-		if (g_dc_di_assignment[dc_chan] == 0)
-			while ((__raw_readl(DC_STAT) & 0x00000002)
-				!= 0x00000002) {
-				udelay(2000);
-				timeout -= 2;
-				if (timeout <= 0)
-					break;
-			}
-		else if (g_dc_di_assignment[dc_chan] == 1)
-			while ((__raw_readl(DC_STAT) & 0x00000020)
-				!= 0x00000020) {
-				udelay(2000);
-				timeout -= 2;
-				if (timeout <= 0)
-					break;
-			}
+		/* Make sure that we leave at the irq starting edge */
+		__raw_writel(IPUIRQ_2_MASK(irq), IPUIRQ_2_STATREG(irq));
+		do {
+			reg = __raw_readl(IPUIRQ_2_STATREG(irq));
+		} while (!(reg & IPUIRQ_2_MASK(irq)));
 
 		reg = __raw_readl(DC_WR_CH_CONF(dc_chan));
 		reg &= ~DC_WR_CH_CONF_PROG_TYPE_MASK;
diff --git a/drivers/video/ipu_regs.h b/drivers/video/ipu_regs.h
index 21e9c99..c2c134a 100644
--- a/drivers/video/ipu_regs.h
+++ b/drivers/video/ipu_regs.h
@@ -313,9 +313,12 @@ struct ipu_dmfc {
 
 #define IPU_STAT		((struct ipu_stat *)(IPU_CTRL_BASE_ADDR + \
 				IPU_STAT_REG_BASE))
+#define IPU_INT_STAT(n)		(&IPU_STAT->int_stat[(n) - 1])
 #define IPU_CHA_CUR_BUF(ch)	(&IPU_STAT->cur_buf[ch / 32])
 #define IPU_CHA_BUF0_RDY(ch)	(&IPU_STAT->ch_buf0_rdy[ch / 32])
 #define IPU_CHA_BUF1_RDY(ch)	(&IPU_STAT->ch_buf1_rdy[ch / 32])
+#define IPUIRQ_2_STATREG(irq)	(IPU_INT_STAT(1) + ((irq) / 32))
+#define IPUIRQ_2_MASK(irq)	(1UL << ((irq) & 0x1F))
 
 #define IPU_INT_CTRL(n)		(&IPU_CM_REG->int_ctrl[(n) - 1])