Subject: Re: [PATCH 06/18] drivers: firmware: psci: Support hierarchical CPU idle states

From: Sudeep Holla <[email-masked]>
Date: Fri, 7 Jun 2019 16:03:57 +0100

On Mon, May 13, 2019 at 09:22:48PM +0200, Ulf Hansson wrote:
> From: Lina Iyer <[email-masked]>
> 
> 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, simply by converting to calling the new OF
> helper, of_get_cpu_state_node().
> 
> Suggested-by: Sudeep Holla <[email-masked]>
> Signed-off-by: Lina Iyer <[email-masked]>
> Co-developed-by: Ulf Hansson <[email-masked]>
> Signed-off-by: Ulf Hansson <[email-masked]>
> ---
> 
> Changes:
> 	- None.
> 
> ---
>  drivers/firmware/psci/psci.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
> index 9c2180bcee4c..b11560f7c4b9 100644
> --- a/drivers/firmware/psci/psci.c
> +++ b/drivers/firmware/psci/psci.c
> @@ -316,7 +316,7 @@ static int psci_dt_cpu_init_idle(struct cpuidle_driver *drv,
>  		return -ENOMEM;
>  
>  	for (i = 0; i < num_state_nodes; i++) {
> -		state_node = of_parse_phandle(cpu_node, "cpu-idle-states", i);
> +		state_node = of_get_cpu_state_node(cpu_node, i);

Ah I spoke too early, it's introduced here. Can be part of earlier
simplification patch, but I am fine either way.

--
Regards,
Sudeep

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