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Commit 9b2b98a3 authored by Ulf Hansson's avatar Ulf Hansson Committed by Wolfram Sang
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i2c: nomadik: Convert to devm functions 



Use devm_* functions to simplify code and error handling.

Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent c33a004c

drivers/i2c/busses/i2c-nomadik.c

+10 −21
Original line number Diff line number Diff line
@@ -976,7 +976,7 @@ static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id) 
	struct i2c_vendor_data *vendor = id->data;

	u32 max_fifo_threshold = (vendor->fifodepth / 2) - 1;



	dev = kzalloc(sizeof(struct nmk_i2c_dev), GFP_KERNEL);

	dev = devm_kzalloc(&adev->dev, sizeof(struct nmk_i2c_dev), GFP_KERNEL);

	if (!dev) {

		dev_err(&adev->dev, "cannot allocate memory\n");

		ret = -ENOMEM;
@@ -1006,27 +1006,28 @@ static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id) 
	/* If possible, let's go to idle until the first transfer */

	pinctrl_pm_select_idle_state(&adev->dev);



	dev->virtbase = ioremap(adev->res.start, resource_size(&adev->res));

	if (!dev->virtbase) {

	dev->virtbase = devm_ioremap(&adev->dev, adev->res.start,

				resource_size(&adev->res));

	if (IS_ERR(dev->virtbase)) {

		ret = -ENOMEM;

		goto err_no_ioremap;

		goto err_no_mem;

	}



	dev->irq = adev->irq[0];

	ret = request_irq(dev->irq, i2c_irq_handler, 0,

	ret = devm_request_irq(&adev->dev, dev->irq, i2c_irq_handler, 0,

				DRIVER_NAME, dev);

	if (ret) {

		dev_err(&adev->dev, "cannot claim the irq %d\n", dev->irq);

		goto err_irq;

		goto err_no_mem;

	}



	pm_suspend_ignore_children(&adev->dev, true);



	dev->clk = clk_get(&adev->dev, NULL);

	dev->clk = devm_clk_get(&adev->dev, NULL);

	if (IS_ERR(dev->clk)) {

		dev_err(&adev->dev, "could not get i2c clock\n");

		ret = PTR_ERR(dev->clk);

		goto err_no_clk;

		goto err_no_mem;

	}



	adap = &dev->adap;
@@ -1048,21 +1049,13 @@ static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id) 
	ret = i2c_add_adapter(adap);

	if (ret) {

		dev_err(&adev->dev, "failed to add adapter\n");

		goto err_add_adap;

		goto err_no_mem;

	}



	pm_runtime_put(&adev->dev);



	return 0;



 err_add_adap:

	clk_put(dev->clk);

 err_no_clk:

	free_irq(dev->irq, dev);

 err_irq:

	iounmap(dev->virtbase);

 err_no_ioremap:

	kfree(dev);

 err_no_mem:



	return ret;
@@ -1079,13 +1072,9 @@ static int nmk_i2c_remove(struct amba_device *adev) 
	clear_all_interrupts(dev);

	/* disable the controller */

	i2c_clr_bit(dev->virtbase + I2C_CR, I2C_CR_PE);

	free_irq(dev->irq, dev);

	iounmap(dev->virtbase);

	if (res)

		release_mem_region(res->start, resource_size(res));

	clk_put(dev->clk);

	pm_runtime_disable(&adev->dev);

	kfree(dev);



	return 0;

}