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-rw-r--r--drivers/clk/sunxi/clk-factors.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c
index 88523f91d9b..5687ac9bd85 100644
--- a/drivers/clk/sunxi/clk-factors.c
+++ b/drivers/clk/sunxi/clk-factors.c
@@ -40,7 +40,7 @@ struct clk_factors {
#define to_clk_factors(_hw) container_of(_hw, struct clk_factors, hw)
-#define SETMASK(len, pos) (((-1U) >> (31-len)) << (pos))
+#define SETMASK(len, pos) (((1U << (len)) - 1) << (pos))
#define CLRMASK(len, pos) (~(SETMASK(len, pos)))
#define FACTOR_GET(bit, len, reg) (((reg) & SETMASK(len, bit)) >> (bit))