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i2c: s3c2410: Convert to devm_request_and_ioremap()

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A small code saving and less error handling to worry about.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
This commit is contained in:
Mark Brown 2012-11-05 09:33:39 +01:00 committed by Wolfram Sang
parent 2935e0e05a
commit a72ad456bb
1 changed files with 7 additions and 28 deletions
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35
drivers/i2c/busses/i2c-s3c2410.c
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@ -78,7 +78,6 @@ struct s3c24xx_i2c {
void __iomem *regs;
struct clk *clk;
struct device *dev;
struct resource *ioarea;
struct i2c_adapter adap;
struct s3c2410_platform_i2c *pdata;
@ -988,25 +987,16 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
goto err_clk;
}
i2c->ioarea = request_mem_region(res->start, resource_size(res),
pdev->name);
if (i2c->ioarea == NULL) {
dev_err(&pdev->dev, "cannot request IO\n");
ret = -ENXIO;
goto err_clk;
}
i2c->regs = ioremap(res->start, resource_size(res));
i2c->regs = devm_request_and_ioremap(&pdev->dev, res);
if (i2c->regs == NULL) {
dev_err(&pdev->dev, "cannot map IO\n");
ret = -ENXIO;
goto err_ioarea;
goto err_clk;
}
dev_dbg(&pdev->dev, "registers %p (%p, %p)\n",
i2c->regs, i2c->ioarea, res);
dev_dbg(&pdev->dev, "registers %p (%p)\n",
i2c->regs, res);
/* setup info block for the i2c core */
@ -1017,7 +1007,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
ret = s3c24xx_i2c_init(i2c);
if (ret != 0)
goto err_iomap;
goto err_clk;
/* find the IRQ for this unit (note, this relies on the init call to
* ensure no current IRQs pending
@ -1026,7 +1016,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
i2c->irq = ret = platform_get_irq(pdev, 0);
if (ret <= 0) {
dev_err(&pdev->dev, "cannot find IRQ\n");
goto err_iomap;
goto err_clk;
}
ret = request_irq(i2c->irq, s3c24xx_i2c_irq, 0,
@ -1034,7 +1024,7 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
if (ret != 0) {
dev_err(&pdev->dev, "cannot claim IRQ %d\n", i2c->irq);
goto err_iomap;
goto err_clk;
}
ret = s3c24xx_i2c_register_cpufreq(i2c);
@ -1074,13 +1064,6 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
err_irq:
free_irq(i2c->irq, i2c);
err_iomap:
iounmap(i2c->regs);
err_ioarea:
release_resource(i2c->ioarea);
kfree(i2c->ioarea);
err_clk:
clk_disable_unprepare(i2c->clk);
clk_put(i2c->clk);
@ -1109,11 +1092,7 @@ static int s3c24xx_i2c_remove(struct platform_device *pdev)
clk_disable_unprepare(i2c->clk);
clk_put(i2c->clk);
iounmap(i2c->regs);
release_resource(i2c->ioarea);
s3c24xx_i2c_dt_gpio_free(i2c);
kfree(i2c->ioarea);
return 0;
}