1 files changed, 28 insertions, 12 deletions

diff --git a/drivers/clk/clk-multiplier.c b/drivers/clk/clk-multiplier.c
index dc037c957acd..6f2955d408b6 100644
--- a/drivers/clk/clk-multiplier.c
+++ b/drivers/clk/clk-multiplier.c
@@ -1,19 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2015 Maxime Ripard <maxime.ripard@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 version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/bitops.h>
 #include <linux/clk-provider.h>
 #include <linux/err.h>
 #include <linux/export.h>
+#include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/of.h>
 #include <linux/slab.h>
 
+static inline u32 clk_mult_readl(struct clk_multiplier *mult)
+{
+	if (mult->flags & CLK_MULTIPLIER_BIG_ENDIAN)
+		return ioread32be(mult->reg);
+
+	return readl(mult->reg);
+}
+
+static inline void clk_mult_writel(struct clk_multiplier *mult, u32 val)
+{
+	if (mult->flags & CLK_MULTIPLIER_BIG_ENDIAN)
+		iowrite32be(val, mult->reg);
+	else
+		writel(val, mult->reg);
+}
+
 static unsigned long __get_mult(struct clk_multiplier *mult,
 				unsigned long rate,
 				unsigned long parent_rate)
@@ -30,7 +44,7 @@ static unsigned long clk_multiplier_recalc_rate(struct clk_hw *hw,
 	struct clk_multiplier *mult = to_clk_multiplier(hw);
 	unsigned long val;
 
-	val = clk_readl(mult->reg) >> mult->shift;
+	val = clk_mult_readl(mult) >> mult->shift;
 	val &= GENMASK(mult->width - 1, 0);
 
 	if (!val && mult->flags & CLK_MULTIPLIER_ZERO_BYPASS)
@@ -98,14 +112,16 @@ static unsigned long __bestmult(struct clk_hw *hw, unsigned long rate,
 	return bestmult;
 }
 
-static long clk_multiplier_round_rate(struct clk_hw *hw, unsigned long rate,
-				  unsigned long *parent_rate)
+static int clk_multiplier_determine_rate(struct clk_hw *hw,
+					 struct clk_rate_request *req)
 {
 	struct clk_multiplier *mult = to_clk_multiplier(hw);
-	unsigned long factor = __bestmult(hw, rate, parent_rate,
+	unsigned long factor = __bestmult(hw, req->rate, &req->best_parent_rate,
 					  mult->width, mult->flags);
 
-	return *parent_rate * factor;
+	req->rate = req->best_parent_rate * factor;
+
+	return 0;
 }
 
 static int clk_multiplier_set_rate(struct clk_hw *hw, unsigned long rate,
@@ -121,10 +137,10 @@ static int clk_multiplier_set_rate(struct clk_hw *hw, unsigned long rate,
 	else
 		__acquire(mult->lock);
 
-	val = clk_readl(mult->reg);
+	val = clk_mult_readl(mult);
 	val &= ~GENMASK(mult->width + mult->shift - 1, mult->shift);
 	val |= factor << mult->shift;
-	clk_writel(val, mult->reg);
+	clk_mult_writel(mult, val);
 
 	if (mult->lock)
 		spin_unlock_irqrestore(mult->lock, flags);
@@ -136,7 +152,7 @@ static int clk_multiplier_set_rate(struct clk_hw *hw, unsigned long rate,
 
 const struct clk_ops clk_multiplier_ops = {
 	.recalc_rate	= clk_multiplier_recalc_rate,
-	.round_rate	= clk_multiplier_round_rate,
+	.determine_rate = clk_multiplier_determine_rate,
 	.set_rate	= clk_multiplier_set_rate,
 };
 EXPORT_SYMBOL_GPL(clk_multiplier_ops);