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path: root/drivers/clk/clkdev.c
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Diffstat (limited to 'drivers/clk/clkdev.c')
-rw-r--r--drivers/clk/clkdev.c31
1 files changed, 25 insertions, 6 deletions
diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c
index 779b6ff0c..eb20b9411 100644
--- a/drivers/clk/clkdev.c
+++ b/drivers/clk/clkdev.c
@@ -353,11 +353,25 @@ void clkdev_drop(struct clk_lookup *cl)
}
EXPORT_SYMBOL(clkdev_drop);
+static struct clk_lookup *__clk_register_clkdev(struct clk_hw *hw,
+ const char *con_id,
+ const char *dev_id, ...)
+{
+ struct clk_lookup *cl;
+ va_list ap;
+
+ va_start(ap, dev_id);
+ cl = vclkdev_create(hw, con_id, dev_id, ap);
+ va_end(ap);
+
+ return cl;
+}
+
/**
* clk_register_clkdev - register one clock lookup for a struct clk
* @clk: struct clk to associate with all clk_lookups
* @con_id: connection ID string on device
- * @dev_id: format string describing device name
+ * @dev_id: string describing device name
*
* con_id or dev_id may be NULL as a wildcard, just as in the rest of
* clkdev.
@@ -368,17 +382,22 @@ EXPORT_SYMBOL(clkdev_drop);
* after clk_register().
*/
int clk_register_clkdev(struct clk *clk, const char *con_id,
- const char *dev_fmt, ...)
+ const char *dev_id)
{
struct clk_lookup *cl;
- va_list ap;
if (IS_ERR(clk))
return PTR_ERR(clk);
- va_start(ap, dev_fmt);
- cl = vclkdev_create(__clk_get_hw(clk), con_id, dev_fmt, ap);
- va_end(ap);
+ /*
+ * Since dev_id can be NULL, and NULL is handled specially, we must
+ * pass it as either a NULL format string, or with "%s".
+ */
+ if (dev_id)
+ cl = __clk_register_clkdev(__clk_get_hw(clk), con_id, "%s",
+ dev_id);
+ else
+ cl = __clk_register_clkdev(__clk_get_hw(clk), con_id, NULL);
return cl ? 0 : -ENOMEM;
}