Thread (31 messages) 31 messages, 4 authors, 2016-07-28
STALE3608d
Revisions (3)
  1. v1 current
  2. v2 [diff vs current]
  3. v3 [diff vs current]

[PATCH 3/9] clk: sunxi-ng: mux: Increase fixed pre-divider div size

From: Chen-Yu Tsai <hidden>
Date: 2016-07-26 07:04:53
Also in: linux-clk, linux-devicetree, lkml
Subsystem: arm/allwinner sunxi soc support, common clk framework, the rest · Maintainers: Chen-Yu Tsai, Jernej Skrabec, Samuel Holland, Michael Turquette, Stephen Boyd, Linus Torvalds

Some clocks have a predivider value that is larger than what u8 can
store. One such example is the OUT clk found on A20/A31, which has
a /750 pre-divider on one of the osc24M parents.

Increase the size of the div field to u16.

Signed-off-by: Chen-Yu Tsai <redacted>
---
 drivers/clk/sunxi-ng/ccu_mux.c | 2 +-
 drivers/clk/sunxi-ng/ccu_mux.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/sunxi-ng/ccu_mux.c b/drivers/clk/sunxi-ng/ccu_mux.c
index 58fc36e7dcce..1329b9ab481e 100644
--- a/drivers/clk/sunxi-ng/ccu_mux.c
+++ b/drivers/clk/sunxi-ng/ccu_mux.c
@@ -18,7 +18,7 @@ void ccu_mux_helper_adjust_parent_for_prediv(struct ccu_common *common,
 					     int parent_index,
 					     unsigned long *parent_rate)
 {
-	u8 prediv = 1;
+	u16 prediv = 1;
 	u32 reg;
 
 	if (!((common->features & CCU_FEATURE_FIXED_PREDIV) ||
diff --git a/drivers/clk/sunxi-ng/ccu_mux.h b/drivers/clk/sunxi-ng/ccu_mux.h
index 945082631e7d..d35ce5e93840 100644
--- a/drivers/clk/sunxi-ng/ccu_mux.h
+++ b/drivers/clk/sunxi-ng/ccu_mux.h
@@ -11,7 +11,7 @@ struct ccu_mux_internal {
 
 	struct {
 		u8	index;
-		u8	div;
+		u16	div;
 	} fixed_prediv;
 
 	struct {
-- 
2.8.1
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