clk: Enable/Disable runtime PM for clk_summary
authorTaniya Das <tdas@codeaurora.org>
Mon, 20 Dec 2021 16:43:55 +0000 (22:13 +0530)
committerStephen Boyd <sboyd@kernel.org>
Thu, 6 Jan 2022 01:20:23 +0000 (17:20 -0800)
The registers for some clocks in the SOC area, which are under the power
domain are required to be enabled before accessing them. During the
clk_summary if the power-domains are not enabled they could result into
NoC errors.

Thus ensure the register access of the clock controller is done with
pm_untime_get/put functions.

Signed-off-by: Taniya Das <tdas@codeaurora.org>
Link: https://lore.kernel.org/r/1640018638-19436-3-git-send-email-tdas@codeaurora.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
drivers/clk/clk.c

index ecb2a73..a048918 100644 (file)
@@ -2965,7 +2965,9 @@ static void clk_summary_show_subtree(struct seq_file *s, struct clk_core *c,
 {
        struct clk_core *child;
 
+       clk_pm_runtime_get(c);
        clk_summary_show_one(s, c, level);
+       clk_pm_runtime_put(c);
 
        hlist_for_each_entry(child, &c->children, child_node)
                clk_summary_show_subtree(s, child, level + 1);