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authorMagnus Damm <damm@igel.co.jp>2008-07-17 19:05:54 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-07-28 18:10:36 +0900
commit152fe36ebee82b63a9c6e510c52aaa82f4b1940d (patch)
tree4f3a4be582896037df99a8e90f006da905cbc557 /arch
parent1312994c8008d66806d9452c15d50df86a031437 (diff)
sh: Show all clocks and their state in /proc/clocks
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/sh/kernel/cpu/clock.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c
index 73334c689e9..f5eb56e6bc5 100644
--- a/arch/sh/kernel/cpu/clock.c
+++ b/arch/sh/kernel/cpu/clock.c
@@ -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;