/* Check if the rate is within the voltage limits of the clock. */
static bool is_rate_valid(struct clk *clk, unsigned long rate)
{
int level;
if (!clk->vdd_class)
return true;
level = find_vdd_level(clk, rate);
return level >= 0;
}
/* Remove vote for a voltage level corresponding to a clock's rate. */
static void unvote_rate_vdd(struct clk *clk, unsigned long rate)
{
int level;
if (!clk->vdd_class)
return;
level = find_vdd_level(clk, rate);
if (level < 0)
return;
unvote_vdd_level(clk->vdd_class, level);
}
/* Vote for a voltage level corresponding to a clock's rate. */
static int vote_rate_vdd(struct clk *clk, unsigned long rate)
{
int ret;
int level;
if (!clk->vdd_class)
return 0;
level = find_vdd_level(clk, rate);
if (level < 0)
return level;
ret = vote_vdd_level(clk->vdd_class, level);
if (clk->flags & CLKFLAG_VOTE_VDD_DELAY)
udelay(60);
return ret;
}
static int fmax_rates_show(struct seq_file *m, void *unused)
{
struct clk *clock = m->private;
int level = 0;
int vdd_level = find_vdd_level(clock, clock->rate);
if (vdd_level < 0) {
seq_printf(m, "could not find_vdd_level for %s, %ld\n",
clock->dbg_name, clock->rate);
return 0;
}
for (level = 0; level < clock->num_fmax; level++) {
if (vdd_level == level)
seq_printf(m, "[%lu] ", clock->fmax[level]);
else
seq_printf(m, "%lu ", clock->fmax[level]);
}
seq_printf(m, "\n");
return 0;
}
