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rtc: rtc-mxc: adapt to the new i.mx clock framework

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i.mx drivers should use clk_prepare_enable/clk_disable_unprepare() in
order to avoid clk warnings.

While at it, convert to devm_clk_get() since other devm_ functions are
used in this driver and it can also save some clk_put() calls.

Signed-off-by: Fabio Estevam <[email protected]>
Acked-by: Sascha Hauer <[email protected]>
Cc: Alessandro Zummo <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Fabio Estevam 2012-10-04 17:14:09 -07:00 • committed by Linus Torvalds
commit 0f3cde536d
1 changed files with 4 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

10
drivers/rtc/rtc-mxc.c
View file

@ -367,14 +367,14 @@ static int __init mxc_rtc_probe(struct platform_device *pdev)
pdata->ioaddr = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
pdata->clk = clk_get(&pdev->dev, "rtc");
pdata->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(pdata->clk)) {
dev_err(&pdev->dev, "unable to get clock!\n");
ret = PTR_ERR(pdata->clk);
goto exit_free_pdata;
}
clk_enable(pdata->clk);
clk_prepare_enable(pdata->clk);
rate = clk_get_rate(pdata->clk);
if (rate == 32768)
@ -426,8 +426,7 @@ static int __init mxc_rtc_probe(struct platform_device *pdev)
exit_clr_drvdata:
platform_set_drvdata(pdev, NULL);
exit_put_clk:
clk_disable(pdata->clk);
clk_put(pdata->clk);
clk_disable_unprepare(pdata->clk);
exit_free_pdata:
@ -440,8 +439,7 @@ static int __exit mxc_rtc_remove(struct platform_device *pdev)
rtc_device_unregister(pdata->rtc);
clk_disable(pdata->clk);
clk_put(pdata->clk);
clk_disable_unprepare(pdata->clk);
platform_set_drvdata(pdev, NULL);
return 0;