Patchwork [RESEND,3/3] i2c/ibm-iic: drop NO_IRQ

login
register
mail settings
Submitter Wolfram Sang
Date April 2, 2010, 12:17 a.m.
Message ID <1270167421-5205-4-git-send-email-w.sang@pengutronix.de>
Download mbox | patch
Permalink /patch/49251/
State Accepted, archived
Delegated to: Benjamin Herrenschmidt
Headers show

Comments

Wolfram Sang - April 2, 2010, 12:17 a.m.
Drop NO_IRQ as 0 is the preferred way to describe 'no irq'
(http://lkml.org/lkml/2005/11/21/221). This change is safe, as the driver is
only used on powerpc, where NO_IRQ is 0 anyhow.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Sean MacLennan <smaclennan@pikatech.com>
Cc: Ben Dooks <ben-linux@fluff.org>
---
 drivers/i2c/busses/i2c-ibm_iic.c |   14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)
Sean MacLennan - April 2, 2010, 7:47 p.m.
On Fri,  2 Apr 2010 02:17:01 +0200
Wolfram Sang <w.sang@pengutronix.de> wrote:

> Drop NO_IRQ as 0 is the preferred way to describe 'no irq'
> (http://lkml.org/lkml/2005/11/21/221). This change is safe, as the
> driver is only used on powerpc, where NO_IRQ is 0 anyhow.
> 
> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
> Acked-by: Grant Likely <grant.likely@secretlab.ca>

Acked-by: Sean MacLennan <smaclennan@pikatech.com>

Cheers,
   Sean
Benjamin Herrenschmidt - April 27, 2010, 7:06 a.m.
On Fri, 2010-04-02 at 02:17 +0200, Wolfram Sang wrote:
> Drop NO_IRQ as 0 is the preferred way to describe 'no irq'
> (http://lkml.org/lkml/2005/11/21/221). This change is safe, as the driver is
> only used on powerpc, where NO_IRQ is 0 anyhow.

Oops... forgot those. Applied, will show up in -next soon.

Cheers,
Ben.

> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
> Acked-by: Grant Likely <grant.likely@secretlab.ca>
> Cc: Sean MacLennan <smaclennan@pikatech.com>
> Cc: Ben Dooks <ben-linux@fluff.org>
> ---
>  drivers/i2c/busses/i2c-ibm_iic.c |   14 +++++++-------
>  1 files changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
> index b1bc6e2..2bef534 100644
> --- a/drivers/i2c/busses/i2c-ibm_iic.c
> +++ b/drivers/i2c/busses/i2c-ibm_iic.c
> @@ -668,12 +668,12 @@ static int __devinit iic_request_irq(struct of_device *ofdev,
>  	int irq;
>  
>  	if (iic_force_poll)
> -		return NO_IRQ;
> +		return 0;
>  
>  	irq = irq_of_parse_and_map(np, 0);
> -	if (irq == NO_IRQ) {
> +	if (!irq) {
>  		dev_err(&ofdev->dev, "irq_of_parse_and_map failed\n");
> -		return NO_IRQ;
> +		return 0;
>  	}
>  
>  	/* Disable interrupts until we finish initialization, assumes
> @@ -683,7 +683,7 @@ static int __devinit iic_request_irq(struct of_device *ofdev,
>  	if (request_irq(irq, iic_handler, 0, "IBM IIC", dev)) {
>  		dev_err(&ofdev->dev, "request_irq %d failed\n", irq);
>  		/* Fallback to the polling mode */
> -		return NO_IRQ;
> +		return 0;
>  	}
>  
>  	return irq;
> @@ -719,7 +719,7 @@ static int __devinit iic_probe(struct of_device *ofdev,
>  	init_waitqueue_head(&dev->wq);
>  
>  	dev->irq = iic_request_irq(ofdev, dev);
> -	if (dev->irq == NO_IRQ)
> +	if (!dev->irq)
>  		dev_warn(&ofdev->dev, "using polling mode\n");
>  
>  	/* Board specific settings */
> @@ -766,7 +766,7 @@ static int __devinit iic_probe(struct of_device *ofdev,
>  	return 0;
>  
>  error_cleanup:
> -	if (dev->irq != NO_IRQ) {
> +	if (dev->irq) {
>  		iic_interrupt_mode(dev, 0);
>  		free_irq(dev->irq, dev);
>  	}
> @@ -790,7 +790,7 @@ static int __devexit iic_remove(struct of_device *ofdev)
>  
>  	i2c_del_adapter(&dev->adap);
>  
> -	if (dev->irq != NO_IRQ) {
> +	if (dev->irq) {
>  		iic_interrupt_mode(dev, 0);
>  		free_irq(dev->irq, dev);
>  	}
Wolfram Sang - April 27, 2010, 7:12 a.m.
On Tue, Apr 27, 2010 at 05:06:14PM +1000, Benjamin Herrenschmidt wrote:
> On Fri, 2010-04-02 at 02:17 +0200, Wolfram Sang wrote:
> > Drop NO_IRQ as 0 is the preferred way to describe 'no irq'
> > (http://lkml.org/lkml/2005/11/21/221). This change is safe, as the driver is
> > only used on powerpc, where NO_IRQ is 0 anyhow.
> 
> Oops... forgot those. Applied, will show up in -next soon.

Ah, thanks. I also asked Ben Dooks to pick them up, but better twice than never
;)
Benjamin Herrenschmidt - April 27, 2010, 7:45 a.m.
On Tue, 2010-04-27 at 09:12 +0200, Wolfram Sang wrote:
> > Oops... forgot those. Applied, will show up in -next soon.
> 
> Ah, thanks. I also asked Ben Dooks to pick them up, but better twice
> than never
> ;)

Ok, Ben, are you taking them or do you want me to ?

Cheers,
Ben.

Patch

diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index b1bc6e2..2bef534 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -668,12 +668,12 @@  static int __devinit iic_request_irq(struct of_device *ofdev,
 	int irq;
 
 	if (iic_force_poll)
-		return NO_IRQ;
+		return 0;
 
 	irq = irq_of_parse_and_map(np, 0);
-	if (irq == NO_IRQ) {
+	if (!irq) {
 		dev_err(&ofdev->dev, "irq_of_parse_and_map failed\n");
-		return NO_IRQ;
+		return 0;
 	}
 
 	/* Disable interrupts until we finish initialization, assumes
@@ -683,7 +683,7 @@  static int __devinit iic_request_irq(struct of_device *ofdev,
 	if (request_irq(irq, iic_handler, 0, "IBM IIC", dev)) {
 		dev_err(&ofdev->dev, "request_irq %d failed\n", irq);
 		/* Fallback to the polling mode */
-		return NO_IRQ;
+		return 0;
 	}
 
 	return irq;
@@ -719,7 +719,7 @@  static int __devinit iic_probe(struct of_device *ofdev,
 	init_waitqueue_head(&dev->wq);
 
 	dev->irq = iic_request_irq(ofdev, dev);
-	if (dev->irq == NO_IRQ)
+	if (!dev->irq)
 		dev_warn(&ofdev->dev, "using polling mode\n");
 
 	/* Board specific settings */
@@ -766,7 +766,7 @@  static int __devinit iic_probe(struct of_device *ofdev,
 	return 0;
 
 error_cleanup:
-	if (dev->irq != NO_IRQ) {
+	if (dev->irq) {
 		iic_interrupt_mode(dev, 0);
 		free_irq(dev->irq, dev);
 	}
@@ -790,7 +790,7 @@  static int __devexit iic_remove(struct of_device *ofdev)
 
 	i2c_del_adapter(&dev->adap);
 
-	if (dev->irq != NO_IRQ) {
+	if (dev->irq) {
 		iic_interrupt_mode(dev, 0);
 		free_irq(dev->irq, dev);
 	}