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| author | Lina Iyer <lina.iyer@linaro.org> | 2019-10-10 12:01:48 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-01-02 16:50:08 +0100 |
| commit | 778f173eb4528a6b48ff6a8600515899de75333c (patch) | |
| tree | ef2f77c7f6a731221f7028797241421b21aaaaf7 /drivers/cpuidle/dt_idle_states.c | |
| parent | of: base: Add of_get_cpu_state_node() to get idle states for a CPU node (diff) | |
| download | linux-778f173eb4528a6b48ff6a8600515899de75333c.tar.xz linux-778f173eb4528a6b48ff6a8600515899de75333c.zip | |
cpuidle: dt: Support hierarchical CPU idle states
Currently CPU's idle states are represented using the flattened model.
Let's add support for the hierarchical layout, via converting to use
of_get_cpu_state_node().
Suggested-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Lina Iyer <lina.iyer@linaro.org>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Co-developed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Diffstat (limited to 'drivers/cpuidle/dt_idle_states.c')
| -rw-r--r-- | drivers/cpuidle/dt_idle_states.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/cpuidle/dt_idle_states.c b/drivers/cpuidle/dt_idle_states.c index d06d21a9525d..252f2a9686a6 100644 --- a/drivers/cpuidle/dt_idle_states.c +++ b/drivers/cpuidle/dt_idle_states.c @@ -111,8 +111,7 @@ 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; @@ -170,7 +169,7 @@ 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; |