[RESEND PATCH v2 15/16] clk: simplify clk_fetch_parent_index() function

[Masahiro Yamada]

The clk_core_get_parent_by_index can be used as a helper function
to simplify the implementation of clk_fetch_parent_index().

Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
---

Changes in v2: None

 drivers/clk/clk.c | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 151cbe8..5b9aec0 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -1069,23 +1069,9 @@ static int clk_fetch_parent_index(struct clk_core *core,
 	if (!parent)
 		return -EINVAL;
 
-	/*
-	 * find index of new parent clock using cached parent ptrs,
-	 * or if not yet cached, use string name comparison and cache
-	 * them now to avoid future calls to clk_core_lookup.
-	 */
-	for (i = 0; i < core->num_parents; i++) {
-		if (core->parents[i] == parent)
-			return i;
-
-		if (core->parents[i])
-			continue;
-
-		if (!strcmp(core->parent_names[i], parent->name)) {
-			core->parents[i] = clk_core_lookup(parent->name);
+	for (i = 0; i < core->num_parents; i++)
+		if (clk_core_get_parent_by_index(core, i) == parent)
 			return i;
-		}
-	}
 
 	return -EINVAL;
 }
-- 
1.9.1

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