From: Lina Iyer <[email protected]>

Currently CPU's idle states are represented in a flattened model, via the
"cpu-idle-states" binding from within the CPU's device nodes.

Support the hierarchical layout during parsing and validating of the CPU's
idle states. This is simply done by calling the new OF helper,
of_get_cpu_state_node().

Cc: Lina Iyer <[email protected]>
Suggested-by: Sudeep Holla <[email protected]>
Signed-off-by: Lina Iyer <[email protected]>
Co-developed-by: Ulf Hansson <[email protected]>
Signed-off-by: Ulf Hansson <[email protected]>
---
 drivers/cpuidle/dt_idle_states.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/cpuidle/dt_idle_states.c b/drivers/cpuidle/dt_idle_states.c
index 53342b7..13f9b7c 100644
--- a/drivers/cpuidle/dt_idle_states.c
+++ b/drivers/cpuidle/dt_idle_states.c
@@ -118,8 +118,7 @@ static bool idle_state_valid(struct device_node 
*state_node, unsigned int idx,
        for (cpu = cpumask_next(cpumask_first(cpumask), cpumask);
             cpu < nr_cpu_ids; cpu = cpumask_next(cpu, cpumask)) {
                cpu_node = of_cpu_device_node_get(cpu);
-               curr_state_node = of_parse_phandle(cpu_node, "cpu-idle-states",
-                                                  idx);
+               curr_state_node = of_get_cpu_state_node(cpu_node, idx);
                if (state_node != curr_state_node)
                        valid = false;
 
@@ -176,7 +175,7 @@ int dt_init_idle_driver(struct cpuidle_driver *drv,
        cpu_node = of_cpu_device_node_get(cpumask_first(cpumask));
 
        for (i = 0; ; i++) {
-               state_node = of_parse_phandle(cpu_node, "cpu-idle-states", i);
+               state_node = of_get_cpu_state_node(cpu_node, i);
                if (!state_node)
                        break;
 
-- 
2.7.4

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