clk: sunxi-ng: Add minimums for all the relevant structures and clocks

Modify the current clocks we have to be able to specify the minimum for
each clocks we support, just like we support the max.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/clk/sunxi-ng/ccu_mult.c b/drivers/clk/sunxi-ng/ccu_mult.c
index 32a1964439a2..6a02ffee5386 100644
--- a/drivers/clk/sunxi-ng/ccu_mult.c
+++ b/drivers/clk/sunxi-ng/ccu_mult.c
@@ -14,7 +14,7 @@
 #include "ccu_mult.h"
 
 struct _ccu_mult {
-	unsigned long	mult, max;
+	unsigned long	mult, min, max;
 };
 
 static void ccu_mult_find_best(unsigned long parent, unsigned long rate,
@@ -23,6 +23,9 @@ static void ccu_mult_find_best(unsigned long parent, unsigned long rate,
 	int _mult;
 
 	_mult = rate / parent;
+	if (_mult < mult->min)
+		_mult = mult->min;
+
 	if (_mult > mult->max)
 		_mult = mult->max;
 
@@ -37,6 +40,7 @@ static unsigned long ccu_mult_round_rate(struct ccu_mux_internal *mux,
 	struct ccu_mult *cm = data;
 	struct _ccu_mult _cm;
 
+	_cm.min = 1;
 	_cm.max = 1 << cm->mult.width;
 	ccu_mult_find_best(parent_rate, rate, &_cm);
 
@@ -101,6 +105,7 @@ static int ccu_mult_set_rate(struct clk_hw *hw, unsigned long rate,
 	ccu_mux_helper_adjust_parent_for_prediv(&cm->common, &cm->mux, -1,
 						&parent_rate);
 
+	_cm.min = 1;
 	_cm.max = 1 << cm->mult.width;
 	ccu_mult_find_best(parent_rate, rate, &_cm);