UCB1400: Allow passing IRQ through platfrom_data

Commit Message

Marek Vasut Nov. 8, 2009, 2:10 a.m. UTC

None

Patch

diff --git a/drivers/input/touchscreen/ucb1400_ts.c 
b/drivers/input/touchscreen/ucb1400_ts.c
index 095f84b..89dcbe7 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -355,10 +355,13 @@  static int ucb1400_ts_probe(struct platform_device *dev)
 		goto err;
 	}
 
-	error = ucb1400_ts_detect_irq(ucb);
-	if (error) {
-		printk(KERN_ERR "UCB1400: IRQ probe failed\n");
-		goto err_free_devs;
+	/* Only in case the IRQ line wasn't supplied, try detecting it */
+	if (ucb->irq < 0) {
+		error = ucb1400_ts_detect_irq(ucb);
+		if (error) {
+			printk(KERN_ERR "UCB1400: IRQ probe failed\n");
+			goto err_free_devs;
+		}
 	}
 
 	init_waitqueue_head(&ucb->ts_wait);
diff --git a/drivers/mfd/ucb1400_core.c b/drivers/mfd/ucb1400_core.c
index fa294b6..85fd942 100644
--- a/drivers/mfd/ucb1400_core.c
+++ b/drivers/mfd/ucb1400_core.c
@@ -51,6 +51,7 @@  static int ucb1400_core_probe(struct device *dev)
 	struct ucb1400_ts ucb_ts;
 	struct ucb1400_gpio ucb_gpio;
 	struct snd_ac97 *ac97;
+	struct ucb1400_pdata *pdata = dev->platform_data;
 
 	memset(&ucb_ts, 0, sizeof(ucb_ts));
 	memset(&ucb_gpio, 0, sizeof(ucb_gpio));
@@ -88,6 +89,12 @@  static int ucb1400_core_probe(struct device *dev)
 
 	/* TOUCHSCREEN */
 	ucb_ts.ac97 = ac97;
+
+	if (pdata != NULL && pdata->irq >= 0)
+		ucb_ts.irq = pdata->irq;
+	else
+		ucb_ts.irq = -1;
+
 	ucb->ucb1400_ts = platform_device_alloc("ucb1400_ts", -1);
 	if (!ucb->ucb1400_ts) {
 		err = -ENOMEM;
diff --git a/include/linux/ucb1400.h b/include/linux/ucb1400.h
index adb4406..1b47909 100644
--- a/include/linux/ucb1400.h
+++ b/include/linux/ucb1400.h
@@ -110,6 +110,10 @@  struct ucb1400 {
 	struct platform_device	*ucb1400_gpio;
 };
 
+struct ucb1400_pdata {
+	int	irq;
+};
+
 static inline u16 ucb1400_reg_read(struct snd_ac97 *ac97, u16 reg)
 {
 	return ac97->bus->ops->read(ac97, reg);