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

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 <fabio.estevam@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index e3e50d69baf85e75966bdea6d7f7b95ae6d65af0..334c43e0ce0e320ee6f396a4ddf757b87c10c756 100644 (file)
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -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;