i2c-s3c2410: Change IRQ to be plain integer.

Change the code to use a plain integer as the holder
for the IRQ for the device and use platform_get_irq()
to find it.

This makes the code slightly neater, and easier to get
the IRQ number.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 8 insertions, 14 deletions

diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index f14007ff2531..2a0de645ccf3 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -61,6 +61,7 @@ struct s3c24xx_i2c {
         unsigned int            msg_ptr;
 
         unsigned int            tx_setup;
+        unsigned int            irq;
 
         enum s3c24xx_i2c_state  state;
         unsigned long           clkrate;
@@ -68,7 +69,6 @@ struct s3c24xx_i2c {
         void __iomem            *regs;
         struct clk              *clk;
         struct device           *dev;
-        struct resource         *irq;
         struct resource         *ioarea;
         struct i2c_adapter      adap;
 
@@ -869,26 +869,20 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
          * ensure no current IRQs pending
          */
 
-        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-        if (res == NULL) {
+        i2c->irq = ret = platform_get_irq(pdev, 0);
+        if (ret <= 0) {
                 dev_err(&pdev->dev, "cannot find IRQ\n");
-                ret = -ENOENT;
                 goto err_iomap;
         }
 
-        ret = request_irq(res->start, s3c24xx_i2c_irq, IRQF_DISABLED,
-                          pdev->name, i2c);
+        ret = request_irq(i2c->irq, s3c24xx_i2c_irq, IRQF_DISABLED,
+                          dev_name(&pdev->dev), i2c);
 
         if (ret != 0) {
-                dev_err(&pdev->dev, "cannot claim IRQ\n");
+                dev_err(&pdev->dev, "cannot claim IRQ %d\n", i2c->irq);
                 goto err_iomap;
         }
 
-        i2c->irq = res;
-
-        dev_dbg(&pdev->dev, "irq resource %p (%lu)\n", res,
-                (unsigned long)res->start);
-
         ret = s3c24xx_i2c_register_cpufreq(i2c);
         if (ret < 0) {
                 dev_err(&pdev->dev, "failed to register cpufreq notifier\n");
@@ -918,7 +912,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
         s3c24xx_i2c_deregister_cpufreq(i2c);
 
  err_irq:
-        free_irq(i2c->irq->start, i2c);
+        free_irq(i2c->irq, i2c);
 
  err_iomap:
         iounmap(i2c->regs);
@@ -948,7 +942,7 @@ static int s3c24xx_i2c_remove(struct platform_device *pdev)
         s3c24xx_i2c_deregister_cpufreq(i2c);
 
         i2c_del_adapter(&i2c->adap);
-        free_irq(i2c->irq->start, i2c);
+        free_irq(i2c->irq, i2c);
 
         clk_disable(i2c->clk);
         clk_put(i2c->clk);