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authorJavier Martinez Canillas <javier@osg.samsung.com>2016-03-15 04:38:38 +0300
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2016-03-19 02:00:12 +0300
commitae6e00b4c01f701a9a268adf35371c018396cd05 (patch)
tree4209918521d0a4bb02d83cf7302df4ef6e9a1508 /drivers/rtc
parent399221ccf45106455c163bb34b4e66256c0ae233 (diff)
downloadlinux-ae6e00b4c01f701a9a268adf35371c018396cd05.tar.xz
rtc: s3c: Don't print an error on probe deferral
The clock and source clock looked up by the driver may not be available just because the clock controller driver was not probed yet so printing an error in this case is not correct and only adds confusion to users. However, knowing that a driver's probe was deferred may be useful so it can be printed as a debug information. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-s3c.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index ffb860d18701..d01ad7e8078e 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -501,18 +501,27 @@ static int s3c_rtc_probe(struct platform_device *pdev)
info->rtc_clk = devm_clk_get(&pdev->dev, "rtc");
if (IS_ERR(info->rtc_clk)) {
- dev_err(&pdev->dev, "failed to find rtc clock\n");
- return PTR_ERR(info->rtc_clk);
+ ret = PTR_ERR(info->rtc_clk);
+ if (ret != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "failed to find rtc clock\n");
+ else
+ dev_dbg(&pdev->dev, "probe deferred due to missing rtc clk\n");
+ return ret;
}
clk_prepare_enable(info->rtc_clk);
if (info->data->needs_src_clk) {
info->rtc_src_clk = devm_clk_get(&pdev->dev, "rtc_src");
if (IS_ERR(info->rtc_src_clk)) {
- dev_err(&pdev->dev,
- "failed to find rtc source clock\n");
+ ret = PTR_ERR(info->rtc_src_clk);
+ if (ret != -EPROBE_DEFER)
+ dev_err(&pdev->dev,
+ "failed to find rtc source clock\n");
+ else
+ dev_dbg(&pdev->dev,
+ "probe deferred due to missing rtc src clk\n");
clk_disable_unprepare(info->rtc_clk);
- return PTR_ERR(info->rtc_src_clk);
+ return ret;
}
clk_prepare_enable(info->rtc_src_clk);
}