diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu_nkmp.c | 20 | ||||
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu_nkmp.h | 2 |
2 files changed, 19 insertions, 3 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_nkmp.c b/drivers/clk/sunxi-ng/ccu_nkmp.c index c3f6fe7be565..ebd9436d2c7c 100644 --- a/drivers/clk/sunxi-ng/ccu_nkmp.c +++ b/drivers/clk/sunxi-ng/ccu_nkmp.c @@ -95,7 +95,7 @@ static unsigned long ccu_nkmp_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { struct ccu_nkmp *nkmp = hw_to_ccu_nkmp(hw); - unsigned long n, m, k, p; + unsigned long n, m, k, p, rate; u32 reg; reg = readl(nkmp->common.base + nkmp->common.reg); @@ -121,7 +121,11 @@ static unsigned long ccu_nkmp_recalc_rate(struct clk_hw *hw, p = reg >> nkmp->p.shift; p &= (1 << nkmp->p.width) - 1; - return ccu_nkmp_calc_rate(parent_rate, n, k, m, 1 << p); + rate = ccu_nkmp_calc_rate(parent_rate, n, k, m, 1 << p); + if (nkmp->common.features & CCU_FEATURE_FIXED_POSTDIV) + rate /= nkmp->fixed_post_div; + + return rate; } static long ccu_nkmp_round_rate(struct clk_hw *hw, unsigned long rate, @@ -130,6 +134,9 @@ 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; + if (nkmp->common.features & CCU_FEATURE_FIXED_POSTDIV) + rate *= nkmp->fixed_post_div; + _nkmp.min_n = nkmp->n.min ?: 1; _nkmp.max_n = nkmp->n.max ?: 1 << nkmp->n.width; _nkmp.min_k = nkmp->k.min ?: 1; @@ -141,8 +148,12 @@ static long ccu_nkmp_round_rate(struct clk_hw *hw, unsigned long rate, ccu_nkmp_find_best(*parent_rate, rate, &_nkmp); - return ccu_nkmp_calc_rate(*parent_rate, _nkmp.n, _nkmp.k, + rate = ccu_nkmp_calc_rate(*parent_rate, _nkmp.n, _nkmp.k, _nkmp.m, _nkmp.p); + if (nkmp->common.features & CCU_FEATURE_FIXED_POSTDIV) + rate = rate / nkmp->fixed_post_div; + + return rate; } static int ccu_nkmp_set_rate(struct clk_hw *hw, unsigned long rate, @@ -154,6 +165,9 @@ static int ccu_nkmp_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long flags; u32 reg; + if (nkmp->common.features & CCU_FEATURE_FIXED_POSTDIV) + rate = rate * nkmp->fixed_post_div; + _nkmp.min_n = nkmp->n.min ?: 1; _nkmp.max_n = nkmp->n.max ?: 1 << nkmp->n.width; _nkmp.min_k = nkmp->k.min ?: 1; diff --git a/drivers/clk/sunxi-ng/ccu_nkmp.h b/drivers/clk/sunxi-ng/ccu_nkmp.h index a82facbc6144..6940503e7fc4 100644 --- a/drivers/clk/sunxi-ng/ccu_nkmp.h +++ b/drivers/clk/sunxi-ng/ccu_nkmp.h @@ -34,6 +34,8 @@ struct ccu_nkmp { struct ccu_div_internal m; struct ccu_div_internal p; + unsigned int fixed_post_div; + struct ccu_common common; }; |