From d1ccbddd090b74b8027727cb543b9c23d7f0f23e Mon Sep 17 00:00:00 2001 From: Yibo Cai Date: Tue, 4 Aug 2015 14:45:29 +0000 Subject: [PATCH] clk: atlas7: replace dto resolution magic number by macro Signed-off-by: Yibo Cai Signed-off-by: Barry Song Signed-off-by: Stephen Boyd --- drivers/clk/sirf/clk-atlas7.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/clk/sirf/clk-atlas7.c b/drivers/clk/sirf/clk-atlas7.c index ed77fd51692c..3d4217f38419 100644 --- a/drivers/clk/sirf/clk-atlas7.c +++ b/drivers/clk/sirf/clk-atlas7.c @@ -465,6 +465,9 @@ static struct clk_pll clk_sys3pll = { * double resolution mode:fout = fin * finc / 2^29 * normal mode:fout = fin * finc / 2^28 */ +#define DTO_RESL_DOUBLE (1ULL << 29) +#define DTO_RESL_NORMAL (1ULL << 28) + static int dto_clk_is_enabled(struct clk_hw *hw) { struct clk_dto *clk = to_dtoclk(hw); @@ -509,9 +512,9 @@ static unsigned long dto_clk_recalc_rate(struct clk_hw *hw, rate *= finc; if (droff & BIT(0)) /* Double resolution off */ - do_div(rate, 1 << 28); + do_div(rate, DTO_RESL_NORMAL); else - do_div(rate, 1 << 29); + do_div(rate, DTO_RESL_DOUBLE); return rate; } @@ -519,11 +522,11 @@ static unsigned long dto_clk_recalc_rate(struct clk_hw *hw, static long dto_clk_round_rate(struct clk_hw *hw, unsigned long rate, unsigned long *parent_rate) { - u64 dividend = (u64)rate * (1 << 29); + u64 dividend = rate * DTO_RESL_DOUBLE; do_div(dividend, *parent_rate); dividend *= *parent_rate; - do_div(dividend, 1 << 29); + do_div(dividend, DTO_RESL_DOUBLE); return dividend; } @@ -531,7 +534,7 @@ static long dto_clk_round_rate(struct clk_hw *hw, unsigned long rate, static int dto_clk_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long parent_rate) { - u64 dividend = (u64)rate * (1 << 29); + u64 dividend = rate * DTO_RESL_DOUBLE; struct clk_dto *clk = to_dtoclk(hw); do_div(dividend, parent_rate); -- 2.30.2