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Clock framework fixes:

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- The clk_test_freq() (aka CLK_SET_DRYRUN) doesn't change frequency,
   don't cache it result.
 - Fix busy condition for clk_set_freq().

MFC after: 3 weeks
This commit is contained in:
mmel 2016-12-04 16:02:59 +00:00
parent 0e2c4a5d91
commit 36694ec494
1 changed files with 7 additions and 5 deletions
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12
sys/dev/extres/clk/clk.c
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@ -830,9 +830,10 @@ clknode_set_freq(struct clknode *clknode, uint64_t freq, int flags,
* OR
* clock is glitch free and is enabled by calling consumer only
*/
if ((clknode->enable_cnt > 1) &&
((clknode->enable_cnt > enablecnt) ||
!(clknode->flags & CLK_NODE_GLITCH_FREE))) {
if ((flags & CLK_SET_DRYRUN) == 0 &&
clknode->enable_cnt > 1 &&
clknode->enable_cnt > enablecnt &&
(clknode->flags & CLK_NODE_GLITCH_FREE) == 0) {
return (EBUSY);
}
@ -856,9 +857,10 @@ clknode_set_freq(struct clknode *clknode, uint64_t freq, int flags,
if (done) {
/* Success - invalidate frequency cache for all children. */
clknode->freq = freq;
if ((flags & CLK_SET_DRYRUN) == 0)
if ((flags & CLK_SET_DRYRUN) == 0) {
clknode->freq = freq;
clknode_refresh_cache(clknode, parent_freq);
}
} else if (clknode->parent != NULL) {
/* Nothing changed, pass request to parent. */
rv = clknode_set_freq(clknode->parent, freq, flags, enablecnt);