Quoting Yisheng Xie (2018-05-31 04:11:13)

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

Reviewed-by: Eric Anholt <redacted>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Eric Anholt <redacted>
Cc: Stefan Wahren <redacted>
Cc: linux-clk at vger.kernel.org
Cc: linux-rpi-kernel at lists.infradead.org
Cc: linux-arm-kernel at lists.infradead.org
Signed-off-by: Yisheng Xie <redacted>
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Applied to clk-next