clk: use match_string() helper

match_string() returns the index of an array for a matching string,
which can be used instead of open coded variant.

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: linux-clk@vger.kernel.org
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Yisheng Xie 2018-05-31 19:11:14 +08:00 • committed by Stephen Boyd
commit d6347445c4