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sh: Show all clocks and their state in /proc/clocks

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Show all clocks in /proc/clocks, and also show if they are enabled or
disabled. This is useful to show MSTPCR bits on SuperH Mobile processors.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2008-07-17 19:05:54 +09:00 committed by Paul Mundt
parent 1312994c80
commit 152fe36ebe
1 changed files with 5 additions and 9 deletions
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14
arch/sh/kernel/cpu/clock.c
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@ -308,15 +308,11 @@ static int show_clocks(char *buf, char **start, off_t off,
list_for_each_entry_reverse(clk, &clock_list, node) {
unsigned long rate = clk_get_rate(clk);
/*
* Don't bother listing dummy clocks with no ancestry
* that only support enable and disable ops.
*/
if (unlikely(!rate && !clk->parent))
continue;
p += sprintf(p, "%-12s\t: %ld.%02ldMHz\n", clk->name,
rate / 1000000, (rate % 1000000) / 10000);
p += sprintf(p, "%-12s\t: %ld.%02ldMHz\t%s\n", clk->name,
rate / 1000000, (rate % 1000000) / 10000,
((clk->flags & CLK_ALWAYS_ENABLED) ||
(atomic_read(&clk->kref.refcount) != 1)) ?
"enabled" : "disabled");
}
return p - buf;