diff options
-rw-r--r-- | drivers/clk/sunxi-ng/ccu_mult.c | 7 | ||||
-rw-r--r-- | drivers/clk/sunxi-ng/ccu_nk.c | 12 | ||||
-rw-r--r-- | drivers/clk/sunxi-ng/ccu_nkm.c | 18 | ||||
-rw-r--r-- | drivers/clk/sunxi-ng/ccu_nkmp.c | 24 | ||||
-rw-r--r-- | drivers/clk/sunxi-ng/ccu_nm.c | 12 |
5 files changed, 50 insertions, 23 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_mult.c b/drivers/clk/sunxi-ng/ccu_mult.c index 32a1964..6a02ffe 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); diff --git a/drivers/clk/sunxi-ng/ccu_nk.c b/drivers/clk/sunxi-ng/ccu_nk.c index e7e2e75..a42d870 100644 --- a/drivers/clk/sunxi-ng/ccu_nk.c +++ b/drivers/clk/sunxi-ng/ccu_nk.c @@ -14,8 +14,8 @@ #include "ccu_nk.h" struct _ccu_nk { - unsigned long n, max_n; - unsigned long k, max_k; + unsigned long n, min_n, max_n; + unsigned long k, min_k, max_k; }; static void ccu_nk_find_best(unsigned long parent, unsigned long rate, @@ -25,8 +25,8 @@ static void ccu_nk_find_best(unsigned long parent, unsigned long rate, unsigned int best_k = 0, best_n = 0; unsigned int _k, _n; - for (_k = 1; _k <= nk->max_k; _k++) { - for (_n = 1; _n <= nk->max_n; _n++) { + for (_k = nk->min_k; _k <= nk->max_k; _k++) { + for (_n = nk->min_n; _n <= nk->max_n; _n++) { unsigned long tmp_rate = parent * _n * _k; if (tmp_rate > rate) @@ -97,7 +97,9 @@ static long ccu_nk_round_rate(struct clk_hw *hw, unsigned long rate, if (nk->common.features & CCU_FEATURE_FIXED_POSTDIV) rate *= nk->fixed_post_div; + _nk.min_n = 1; _nk.max_n = 1 << nk->n.width; + _nk.min_k = 1; _nk.max_k = 1 << nk->k.width; ccu_nk_find_best(*parent_rate, rate, &_nk); @@ -120,7 +122,9 @@ static int ccu_nk_set_rate(struct clk_hw *hw, unsigned long rate, if (nk->common.features & CCU_FEATURE_FIXED_POSTDIV) rate = rate * nk->fixed_post_div; + _nk.min_n = 1; _nk.max_n = 1 << nk->n.width; + _nk.min_k = 1; _nk.max_k = 1 << nk->k.width; ccu_nk_find_best(parent_rate, rate, &_nk); diff --git a/drivers/clk/sunxi-ng/ccu_nkm.c b/drivers/clk/sunxi-ng/ccu_nkm.c index 0b08d00..4217732 100644 --- a/drivers/clk/sunxi-ng/ccu_nkm.c +++ b/drivers/clk/sunxi-ng/ccu_nkm.c @@ -14,9 +14,9 @@ #include "ccu_nkm.h" struct _ccu_nkm { - unsigned long n, max_n; - unsigned long k, max_k; - unsigned long m, max_m; + unsigned long n, min_n, max_n; + unsigned long k, min_k, max_k; + unsigned long m, min_m, max_m; }; static void ccu_nkm_find_best(unsigned long parent, unsigned long rate, @@ -26,9 +26,9 @@ static void ccu_nkm_find_best(unsigned long parent, unsigned long rate, unsigned long best_n = 0, best_k = 0, best_m = 0; unsigned long _n, _k, _m; - for (_k = 1; _k <= nkm->max_k; _k++) { - for (_n = 1; _n <= nkm->max_n; _n++) { - for (_m = 1; _n <= nkm->max_m; _m++) { + for (_k = nkm->min_k; _k <= nkm->max_k; _k++) { + for (_n = nkm->min_n; _n <= nkm->max_n; _n++) { + for (_m = nkm->min_m; _m <= nkm->max_m; _m++) { unsigned long tmp_rate; tmp_rate = parent * _n * _k / _m; @@ -100,8 +100,11 @@ static unsigned long ccu_nkm_round_rate(struct ccu_mux_internal *mux, struct ccu_nkm *nkm = data; struct _ccu_nkm _nkm; + _nkm.min_n = 1; _nkm.max_n = 1 << nkm->n.width; + _nkm.min_k = 1; _nkm.max_k = 1 << nkm->k.width; + _nkm.min_m = 1; _nkm.max_m = nkm->m.max ?: 1 << nkm->m.width; ccu_nkm_find_best(parent_rate, rate, &_nkm); @@ -126,8 +129,11 @@ static int ccu_nkm_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long flags; u32 reg; + _nkm.min_n = 1; _nkm.max_n = 1 << nkm->n.width; + _nkm.min_k = 1; _nkm.max_k = 1 << nkm->k.width; + _nkm.min_m = 1; _nkm.max_m = nkm->m.max ?: 1 << nkm->m.width; ccu_nkm_find_best(parent_rate, rate, &_nkm); diff --git a/drivers/clk/sunxi-ng/ccu_nkmp.c b/drivers/clk/sunxi-ng/ccu_nkmp.c index fcf6757..67c856e 100644 --- a/drivers/clk/sunxi-ng/ccu_nkmp.c +++ b/drivers/clk/sunxi-ng/ccu_nkmp.c @@ -14,10 +14,10 @@ #include "ccu_nkmp.h" struct _ccu_nkmp { - unsigned long n, max_n; - unsigned long k, max_k; - unsigned long m, max_m; - unsigned long p, max_p; + unsigned long n, min_n, max_n; + unsigned long k, min_k, max_k; + unsigned long m, min_m, max_m; + unsigned long p, min_p, max_p; }; static void ccu_nkmp_find_best(unsigned long parent, unsigned long rate, @@ -27,10 +27,10 @@ static void ccu_nkmp_find_best(unsigned long parent, unsigned long rate, unsigned long best_n = 0, best_k = 0, best_m = 0, best_p = 0; unsigned long _n, _k, _m, _p; - for (_k = 1; _k <= nkmp->max_k; _k++) { - for (_n = 1; _n <= nkmp->max_n; _n++) { - for (_m = 1; _n <= nkmp->max_m; _m++) { - for (_p = 1; _p <= nkmp->max_p; _p <<= 1) { + for (_k = nkmp->min_k; _k <= nkmp->max_k; _k++) { + for (_n = nkmp->min_n; _n <= nkmp->max_n; _n++) { + for (_m = nkmp->min_m; _m <= nkmp->max_m; _m++) { + for (_p = nkmp->min_p; _p <= nkmp->max_p; _p <<= 1) { unsigned long tmp_rate; tmp_rate = parent * _n * _k / (_m * _p); @@ -107,9 +107,13 @@ static long ccu_nkmp_round_rate(struct clk_hw *hw, unsigned long rate, struct ccu_nkmp *nkmp = hw_to_ccu_nkmp(hw); struct _ccu_nkmp _nkmp; + _nkmp.min_n = 1; _nkmp.max_n = 1 << nkmp->n.width; + _nkmp.min_k = 1; _nkmp.max_k = 1 << nkmp->k.width; + _nkmp.min_m = 1; _nkmp.max_m = nkmp->m.max ?: 1 << nkmp->m.width; + _nkmp.min_p = 1; _nkmp.max_p = nkmp->p.max ?: 1 << ((1 << nkmp->p.width) - 1); ccu_nkmp_find_best(*parent_rate, rate, &_nkmp); @@ -125,9 +129,13 @@ static int ccu_nkmp_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long flags; u32 reg; + _nkmp.min_n = 1; _nkmp.max_n = 1 << nkmp->n.width; + _nkmp.min_k = 1; _nkmp.max_k = 1 << nkmp->k.width; + _nkmp.min_m = 1; _nkmp.max_m = nkmp->m.max ?: 1 << nkmp->m.width; + _nkmp.min_p = 1; _nkmp.max_p = nkmp->p.max ?: 1 << ((1 << nkmp->p.width) - 1); ccu_nkmp_find_best(parent_rate, rate, &_nkmp); diff --git a/drivers/clk/sunxi-ng/ccu_nm.c b/drivers/clk/sunxi-ng/ccu_nm.c index c6d6522..1dae4f3 100644 --- a/drivers/clk/sunxi-ng/ccu_nm.c +++ b/drivers/clk/sunxi-ng/ccu_nm.c @@ -15,8 +15,8 @@ #include "ccu_nm.h" struct _ccu_nm { - unsigned long n, max_n; - unsigned long m, max_m; + unsigned long n, min_n, max_n; + unsigned long m, min_m, max_m; }; static void ccu_nm_find_best(unsigned long parent, unsigned long rate, @@ -26,8 +26,8 @@ static void ccu_nm_find_best(unsigned long parent, unsigned long rate, unsigned long best_n = 0, best_m = 0; unsigned long _n, _m; - for (_n = 1; _n <= nm->max_n; _n++) { - for (_m = 1; _n <= nm->max_m; _m++) { + for (_n = nm->min_n; _n <= nm->max_n; _n++) { + for (_m = nm->min_m; _m <= nm->max_m; _m++) { unsigned long tmp_rate = parent * _n / _m; if (tmp_rate > rate) @@ -93,7 +93,9 @@ static long ccu_nm_round_rate(struct clk_hw *hw, unsigned long rate, struct ccu_nm *nm = hw_to_ccu_nm(hw); struct _ccu_nm _nm; + _nm.min_n = 1; _nm.max_n = 1 << nm->n.width; + _nm.min_m = 1; _nm.max_m = nm->m.max ?: 1 << nm->m.width; ccu_nm_find_best(*parent_rate, rate, &_nm); @@ -114,7 +116,9 @@ static int ccu_nm_set_rate(struct clk_hw *hw, unsigned long rate, else ccu_frac_helper_disable(&nm->common, &nm->frac); + _nm.min_n = 1; _nm.max_n = 1 << nm->n.width; + _nm.min_m = 1; _nm.max_m = nm->m.max ?: 1 << nm->m.width; ccu_nm_find_best(parent_rate, rate, &_nm); |