tty: serial: mvebu-uart: convert from round_rate() to determine_rate()

The round_rate() clk ops is deprecated, so migrate this driver from
round_rate() to determine_rate() using the Coccinelle semantic patch
appended to the "under-the-cut" portion of the patch.

Signed-off-by: Brian Masney <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/tty/serial/mvebu-uart.c

···
 	return parent_rate / uart_clock_base->div;
 }
 
-static long mvebu_uart_clock_round_rate(struct clk_hw *hw, unsigned long rate,
-					unsigned long *parent_rate)
+static int mvebu_uart_clock_determine_rate(struct clk_hw *hw,
+					   struct clk_rate_request *req)
 {
 	struct mvebu_uart_clock *uart_clock = to_uart_clock(hw);
 	struct mvebu_uart_clock_base *uart_clock_base =
 						to_uart_clock_base(uart_clock);
 
-	return *parent_rate / uart_clock_base->div;
+	req->rate = req->best_parent_rate / uart_clock_base->div;
+
+	return 0;
 }
 
 static int mvebu_uart_clock_set_rate(struct clk_hw *hw, unsigned long rate,
···
 	.is_enabled = mvebu_uart_clock_is_enabled,
 	.save_context = mvebu_uart_clock_save_context,
 	.restore_context = mvebu_uart_clock_restore_context,
-	.round_rate = mvebu_uart_clock_round_rate,
+	.determine_rate = mvebu_uart_clock_determine_rate,
 	.set_rate = mvebu_uart_clock_set_rate,
 	.recalc_rate = mvebu_uart_clock_recalc_rate,
 };