/* Enable clock source without taking the lock. */
static int local_src_enable_nolock(int src)
{
int rc = 0;
if (!src_votes[src]) {
if (soc_clk_sources[src].par != SRC_NONE)
rc = local_src_enable_nolock(soc_clk_sources[src].par);
if (rc)
goto err_par;
/* Perform source-specific enable operations. */
if (soc_clk_sources[src].enable_func)
rc = soc_clk_sources[src].enable_func(src, 1);
if (rc)
goto err_enable;
}
src_votes[src]++;
return rc;
err_enable:
if (soc_clk_sources[src].par != SRC_NONE)
local_src_disable_nolock(soc_clk_sources[src].par);
err_par:
return rc;
}
/* Enable clock source. */
int local_src_enable(int src)
{
int rc = 0;
unsigned long flags;
if (src == SRC_NONE)
return rc;
spin_lock_irqsave(&src_vote_lock, flags);
rc = local_src_enable_nolock(src);
spin_unlock_irqrestore(&src_vote_lock, flags);
return rc;
}
/* Enable clock source. */
int local_src_enable(int src)
{
int rc = 0;
unsigned long flags;
if (src == SRC_NONE)
return 0;
if (src < 0 || src >= MAX_SOURCES)
return -EINVAL;
spin_lock_irqsave(&src_vote_lock, flags);
rc = local_src_enable_nolock(src);
spin_unlock_irqrestore(&src_vote_lock, flags);
return rc;
}
