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[13/26] V4L/DVB: saa7134: Add support for both positive and negative edge IRQ

Message ID 20100406151801.642ec970@pedra (mailing list archive)
State RFC
Headers show

Commit Message

Mauro Carvalho Chehab April 6, 2010, 6:18 p.m. UTC 
None
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Patch

diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c
index 0612fff..90f2318 100644
--- a/drivers/media/video/saa7134/saa7134-core.c
+++ b/drivers/media/video/saa7134/saa7134-core.c
@@ -701,10 +701,12 @@  static int saa7134_hw_enable2(struct saa7134_dev *dev)
 	if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
 		if (dev->remote->mask_keydown & 0x10000)
 			irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
-		else if (dev->remote->mask_keydown & 0x40000)
-			irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
-		else if (dev->remote->mask_keyup & 0x40000)
-			irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
+		else {		/* Allow enabling both IRQ edge triggers */
+			if (dev->remote->mask_keydown & 0x40000)
+				irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
+			if (dev->remote->mask_keyup & 0x40000)
+				irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
+		}
 	}
 
 	if (dev->has_remote == SAA7134_REMOTE_I2C) {