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authorMarek Szyprowski2014-10-29 14:50:38 -0700
committerLinus Torvalds2014-10-29 16:33:14 -0700
commiteaf3a659086e1d1d85dc8fbce4007e3c9076e0b3 (patch)
treeb500bbb5391b29f52b2b7c9e036b750d5d15f9ed
parent0baf2a4dbf75abb7c186fd6c8d55d27aaa354a29 (diff)
drivers/rtc/rtc-s3c.c: fix initialization failure without rtc source clock
Fix unconditional initialization failure on non-exynos3250 SoCs. Commit df9e26d093d3 ("rtc: s3c: add support for RTC of Exynos3250 SoC") introduced rtc source clock support, but also added initialization failure on SoCs, which doesn't need such clock. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/rtc/rtc-s3c.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index a6b1252c9941..806072238c00 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -535,13 +535,15 @@ static int s3c_rtc_probe(struct platform_device *pdev)
}
clk_prepare_enable(info->rtc_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");
- return PTR_ERR(info->rtc_src_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");
+ return PTR_ERR(info->rtc_src_clk);
+ }
+ clk_prepare_enable(info->rtc_src_clk);
}
- clk_prepare_enable(info->rtc_src_clk);
-
/* check to see if everything is setup correctly */
if (info->data->enable)