static unsigned long ccu_nm_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct ccu_nm *nm = hw_to_ccu_nm(hw);
unsigned long n, m;
u32 reg;
if (ccu_frac_helper_is_enabled(&nm->common, &nm->frac))
return ccu_frac_helper_read_rate(&nm->common, &nm->frac);
reg = readl(nm->common.base + nm->common.reg);
n = reg >> nm->n.shift;
n &= (1 << nm->n.width) - 1;
n += nm->n.offset;
if (!n)
n++;
m = reg >> nm->m.shift;
m &= (1 << nm->m.width) - 1;
m += nm->m.offset;
if (!m)
m++;
return parent_rate * n / m;
}
static unsigned long ccu_mult_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct ccu_mult *cm = hw_to_ccu_mult(hw);
unsigned long val;
u32 reg;
if (ccu_frac_helper_is_enabled(&cm->common, &cm->frac))
return ccu_frac_helper_read_rate(&cm->common, &cm->frac);
reg = readl(cm->common.base + cm->common.reg);
val = reg >> cm->mult.shift;
val &= (1 << cm->mult.width) - 1;
parent_rate = ccu_mux_helper_apply_prediv(&cm->common, &cm->mux, -1,
parent_rate);
return parent_rate * (val + cm->mult.offset);
}
static unsigned long ccu_nm_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct ccu_nm *nm = hw_to_ccu_nm(hw);
unsigned long rate;
unsigned long n, m;
u32 reg;
if (ccu_frac_helper_is_enabled(&nm->common, &nm->frac)) {
rate = ccu_frac_helper_read_rate(&nm->common, &nm->frac);
if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV)
rate /= nm->fixed_post_div;
return rate;
}
reg = readl(nm->common.base + nm->common.reg);
n = reg >> nm->n.shift;
n &= (1 << nm->n.width) - 1;
n += nm->n.offset;
if (!n)
n++;
m = reg >> nm->m.shift;
m &= (1 << nm->m.width) - 1;
m += nm->m.offset;
if (!m)
m++;
if (ccu_sdm_helper_is_enabled(&nm->common, &nm->sdm))
rate = ccu_sdm_helper_read_rate(&nm->common, &nm->sdm, m, n);
else
rate = parent_rate * n / m;
if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV)
rate /= nm->fixed_post_div;
return rate;
}
