1 files changed, 30 insertions, 32 deletions

diff --git a/drivers/clk/at91/clk-h32mx.c b/drivers/clk/at91/clk-h32mx.c
index e0daa4a31f88..a9aa93b5a870 100644
--- a/drivers/clk/at91/clk-h32mx.c
+++ b/drivers/clk/at91/clk-h32mx.c
@@ -1,15 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * clk-h32mx.c
  *
  *  Copyright (C) 2014 Atmel
  *
  * Alexandre Belloni <alexandre.belloni@free-electrons.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  */
 
 #include <linux/clk-provider.h>
@@ -45,21 +40,32 @@ static unsigned long clk_sama5d4_h32mx_recalc_rate(struct clk_hw *hw,
 	return parent_rate;
 }
 
-static long clk_sama5d4_h32mx_round_rate(struct clk_hw *hw, unsigned long rate,
-				       unsigned long *parent_rate)
+static int clk_sama5d4_h32mx_determine_rate(struct clk_hw *hw,
+					    struct clk_rate_request *req)
 {
 	unsigned long div;
 
-	if (rate > *parent_rate)
-		return *parent_rate;
-	div = *parent_rate / 2;
-	if (rate < div)
-		return div;
+	if (req->rate > req->best_parent_rate) {
+		req->rate = req->best_parent_rate;
 
-	if (rate - div < *parent_rate - rate)
-		return div;
+		return 0;
+	}
+	div = req->best_parent_rate / 2;
+	if (req->rate < div) {
+		req->rate = div;
 
-	return *parent_rate;
+		return 0;
+	}
+
+	if (req->rate - div < req->best_parent_rate - req->rate) {
+		req->rate = div;
+
+		return 0;
+	}
+
+	req->rate = req->best_parent_rate;
+
+	return 0;
 }
 
 static int clk_sama5d4_h32mx_set_rate(struct clk_hw *hw, unsigned long rate,
@@ -82,29 +88,23 @@ static int clk_sama5d4_h32mx_set_rate(struct clk_hw *hw, unsigned long rate,
 
 static const struct clk_ops h32mx_ops = {
 	.recalc_rate = clk_sama5d4_h32mx_recalc_rate,
-	.round_rate = clk_sama5d4_h32mx_round_rate,
+	.determine_rate = clk_sama5d4_h32mx_determine_rate,
 	.set_rate = clk_sama5d4_h32mx_set_rate,
 };
 
-static void __init of_sama5d4_clk_h32mx_setup(struct device_node *np)
+struct clk_hw * __init
+at91_clk_register_h32mx(struct regmap *regmap, const char *name,
+			const char *parent_name)
 {
 	struct clk_sama5d4_h32mx *h32mxclk;
 	struct clk_init_data init;
-	const char *parent_name;
-	struct regmap *regmap;
 	int ret;
 
-	regmap = syscon_node_to_regmap(of_get_parent(np));
-	if (IS_ERR(regmap))
-		return;
-
 	h32mxclk = kzalloc(sizeof(*h32mxclk), GFP_KERNEL);
 	if (!h32mxclk)
-		return;
-
-	parent_name = of_clk_get_parent_name(np, 0);
+		return ERR_PTR(-ENOMEM);
 
-	init.name = np->name;
+	init.name = name;
 	init.ops = &h32mx_ops;
 	init.parent_names = parent_name ? &parent_name : NULL;
 	init.num_parents = parent_name ? 1 : 0;
@@ -116,10 +116,8 @@ static void __init of_sama5d4_clk_h32mx_setup(struct device_node *np)
 	ret = clk_hw_register(NULL, &h32mxclk->hw);
 	if (ret) {
 		kfree(h32mxclk);
-		return;
+		return ERR_PTR(ret);
 	}
 
-	of_clk_add_hw_provider(np, of_clk_hw_simple_get, &h32mxclk->hw);
+	return &h32mxclk->hw;
 }
-CLK_OF_DECLARE(of_sama5d4_clk_h32mx_setup, "atmel,sama5d4-clk-h32mx",
-	       of_sama5d4_clk_h32mx_setup);