---

yaml --- r: 173864 b: refs/heads/master c: 597fe31 h: refs/heads/master v: v3
git-mirror · Dec 9, 2009 · 0160fc8 · 0160fc8
1 parent 16fef1d
commit 0160fc8
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8f588e40c788e63756ca1028c253f9f663d7d1c5
+refs/heads/master: 597fe310f16d8246eec856326aa497bfa1b5bfa3
diff --git a/trunk/drivers/i2c/busses/i2c-designware.c b/trunk/drivers/i2c/busses/i2c-designware.c
@@ -621,6 +621,13 @@ static irqreturn_t i2c_dw_isr(int this_irq, void *dev_id)
 	if (stat & DW_IC_INTR_TX_ABRT) {
 		dev->cmd_err |= DW_IC_ERR_TX_ABRT;
 		dev->status = STATUS_IDLE;
+
+		/*
+		 * Anytime TX_ABRT is set, the contents of the tx/rx
+		 * buffers are flushed.  Make sure to skip them.
+		 */
+		writel(0, dev->base + DW_IC_INTR_MASK);
+		goto tx_aborted;
 	}
 
 	if (stat & DW_IC_INTR_RX_FULL)
@@ -635,6 +642,7 @@ static irqreturn_t i2c_dw_isr(int this_irq, void *dev_id)
 	 * the current transmit status.
 	 */
 
+tx_aborted:
 	if ((stat & (DW_IC_INTR_TX_ABRT | DW_IC_INTR_STOP_DET)) || dev->msg_err)
 		complete(&dev->cmd_complete);