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authorBen Dooks <ben-linux@fluff.org>2008-10-31 16:10:30 +0000
committerBen Dooks <ben-linux@fluff.org>2008-12-16 20:27:28 +0000
commite0d1ec97853fa09cf676dc6b51dafd35db12759e (patch)
tree4661e3f0ed2d62ae54026213f0f36f413558f1b7 /drivers/i2c
parent692acbd3a866a9f84e18a5980b3a97ca52e501b2 (diff)
downloadlinux-e0d1ec97853fa09cf676dc6b51dafd35db12759e.tar.bz2
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>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-s3c2410.c22
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);