linux-kernel - [RFC PATCH 3/9] Serial: sc26xx - use interrupt trigger flags from resources.

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Date:	Sat, 21 Nov 2009 14:40:03 +0100
From:	Martin Fuzzey <mfuzzey@...il.com>
To:	tsbogend@...ha.franken.de, linux-serial@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: [RFC PATCH 3/9] Serial: sc26xx - use interrupt trigger flags from
	resources.

Allows platform resources to specify interrupt flags.

Signed-off-by: Martin Fuzzey <mfuzzey@...il.com>

---

 drivers/serial/sc26xx.c |   11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/serial/sc26xx.c b/drivers/serial/sc26xx.c
index dc09682..ca74bf6 100644
--- a/drivers/serial/sc26xx.c
+++ b/drivers/serial/sc26xx.c
@@ -631,7 +631,7 @@ static void __devinit sc26xx_init_masks(struct uart_sc26xx_port *up,
 
 static int __devinit sc26xx_probe(struct platform_device *dev)
 {
-	struct resource *res;
+	struct resource *res, *irq_res;
 	struct uart_sc26xx_port *up;
 	unsigned int *sc26xx_data = dev->dev.platform_data;
 	int err;
@@ -640,6 +640,10 @@ static int __devinit sc26xx_probe(struct platform_device *dev)
 	if (!res)
 		return -ENODEV;
 
+	irq_res = platform_get_resource(dev, IORESOURCE_IRQ, 0);
+	if (!irq_res)
+		return -ENXIO;
+
 	up = kzalloc(sizeof *up, GFP_KERNEL);
 	if (unlikely(!up))
 		return -ENOMEM;
@@ -652,7 +656,7 @@ static int __devinit sc26xx_probe(struct platform_device *dev)
 	up->port[0].mapbase = res->start;
 	up->port[0].membase = ioremap_nocache(up->port[0].mapbase, 0x40);
 	up->port[0].iotype = UPIO_MEM;
-	up->port[0].irq = platform_get_irq(dev, 0);
+	up->port[0].irq = irq_res->start;
 
 	up->port[0].dev = &dev->dev;
 
@@ -688,7 +692,8 @@ static int __devinit sc26xx_probe(struct platform_device *dev)
 	if (err)
 		goto out_remove_port0;
 
-	err = request_irq(up->port[0].irq, sc26xx_interrupt, 0, "sc26xx", up);
+	err = request_irq(up->port[0].irq, sc26xx_interrupt,
+		irq_res->flags & IRQF_TRIGGER_MASK, "sc26xx", up);
 	if (err)
 		goto out_remove_ports;
 

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