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net: macb: Migrate to devm clock interface

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Migrate to using the device managed interface for clocks and clean up
the associated error paths.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Soren Brinkmann 2013-12-10 16:07:20 -08:00 committed by David S. Miller
parent 0dfc3e1862
commit b48e0bab14
1 changed files with 20 additions and 12 deletions
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32
drivers/net/ethernet/cadence/macb.c
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@ -1790,19 +1790,31 @@ static int __init macb_probe(struct platform_device *pdev)
spin_lock_init(&bp->lock);
INIT_WORK(&bp->tx_error_task, macb_tx_error_task);
bp->pclk = clk_get(&pdev->dev, "pclk");
bp->pclk = devm_clk_get(&pdev->dev, "pclk");
if (IS_ERR(bp->pclk)) {
dev_err(&pdev->dev, "failed to get macb_clk\n");
err = PTR_ERR(bp->pclk);
dev_err(&pdev->dev, "failed to get macb_clk (%u)\n", err);
goto err_out_free_dev;
}
clk_prepare_enable(bp->pclk);
bp->hclk = clk_get(&pdev->dev, "hclk");
bp->hclk = devm_clk_get(&pdev->dev, "hclk");
if (IS_ERR(bp->hclk)) {
dev_err(&pdev->dev, "failed to get hclk\n");
goto err_out_put_pclk;
err = PTR_ERR(bp->hclk);
dev_err(&pdev->dev, "failed to get hclk (%u)\n", err);
goto err_out_free_dev;
}
err = clk_prepare_enable(bp->pclk);
if (err) {
dev_err(&pdev->dev, "failed to enable pclk (%u)\n", err);
goto err_out_free_dev;
}
err = clk_prepare_enable(bp->hclk);
if (err) {
dev_err(&pdev->dev, "failed to enable hclk (%u)\n", err);
goto err_out_disable_pclk;
}
clk_prepare_enable(bp->hclk);
bp->regs = ioremap(regs->start, resource_size(regs));
if (!bp->regs) {
@ -1908,10 +1920,8 @@ static int __init macb_probe(struct platform_device *pdev)
iounmap(bp->regs);
err_out_disable_clocks:
clk_disable_unprepare(bp->hclk);
clk_put(bp->hclk);
err_out_disable_pclk:
clk_disable_unprepare(bp->pclk);
err_out_put_pclk:
clk_put(bp->pclk);
err_out_free_dev:
free_netdev(dev);
err_out:
@ -1936,9 +1946,7 @@ static int __exit macb_remove(struct platform_device *pdev)
free_irq(dev->irq, dev);
iounmap(bp->regs);
clk_disable_unprepare(bp->hclk);
clk_put(bp->hclk);
clk_disable_unprepare(bp->pclk);
clk_put(bp->pclk);
free_netdev(dev);
}