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davinci: make /proc/davinci_clocks display multi-rooted clock tree
This patch modifies clock dump to take care of clock tress rooted at multiple oscillators. Current code assumes the entire tree is rooted on a single oscillator. When using off-chip clock synthesizers, some of the clocks can be obtained from a different on-board oscillator. Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
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1 changed files with 7 additions and 4 deletions
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@ -516,12 +516,15 @@ dump_clock(struct seq_file *s, unsigned nest, struct clk *parent)
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static int davinci_ck_show(struct seq_file *m, void *v)
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{
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/* Show clock tree; we know the main oscillator is first.
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* We trust nonzero usecounts equate to PSC enables...
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struct clk *clk;
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/*
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* Show clock tree; We trust nonzero usecounts equate to PSC enables...
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*/
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mutex_lock(&clocks_mutex);
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if (!list_empty(&clocks))
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dump_clock(m, 0, list_first_entry(&clocks, struct clk, node));
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list_for_each_entry(clk, &clocks, node)
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if (!clk->parent)
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dump_clock(m, 0, clk);
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mutex_unlock(&clocks_mutex);
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return 0;
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