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SubjectRe: [PATCH v10 07/27] cpuidle: dt: Support hierarchical CPU idle states
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On 29/11/2018 18:46, Ulf Hansson wrote:
> From: Lina Iyer <lina.iyer@linaro.org>
>
> 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 <ilina@codeaurora.org>
> Suggested-by: Sudeep Holla <sudeep.holla@arm.com>
> Signed-off-by: Lina Iyer <lina.iyer@linaro.org>
> Co-developed-by: Ulf Hansson <ulf.hansson@linaro.org>
> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>

> ---
>
> Changes in v10:
> - None.
>
> ---
> 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 53342b7f1010..13f9b7cd32d1 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;
>
>


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