linux-kernel - Re: [PATCH v4 2/3] interconnect: Relax requirement in of_icc_get_from

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Date:   Fri, 17 Jan 2020 14:24:00 +0900
From:   Chanwoo Choi <cw00.choi@...sung.com>
To:     Artur Świgoń <a.swigon@...sung.com>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org
Cc:     georgi.djakov@...aro.org, b.zolnierkie@...sung.com,
        m.szyprowski@...sung.com, krzk@...nel.org
Subject: Re: [PATCH v4 2/3] interconnect: Relax requirement in
 of_icc_get_from_provider()

Hi,

On 1/16/20 11:42 PM, Artur Świgoń wrote:
> This patch relaxes the condition in of_icc_get_from_provider() so that
> it is no longer required to set '#interconnect-cells' to <1> in the DT,
> and therefore it is not required to supply dummy node IDs in the
> 'interconnects' property when node IDs are dynamically generated rather
> than hardcoded (statically allocated).
> 
> In case of the devfreq driver for exynos-bus, node IDs are dynamically
> allocated and '#interconnect-cells' is always zero.
> 
> Signed-off-by: Artur Świgoń <a.swigon@...sung.com>
> Acked-by: Krzysztof Kozlowski <krzk@...nel.org>
> ---
>  drivers/interconnect/core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c
> index 0be1764d3528..5ea270af5ff4 100644
> --- a/drivers/interconnect/core.c
> +++ b/drivers/interconnect/core.c
> @@ -335,7 +335,7 @@ struct icc_node *of_icc_get_from_provider(struct of_phandle_args *spec)
>  	struct icc_node *node = ERR_PTR(-EPROBE_DEFER);
>  	struct icc_provider *provider;
>  
> -	if (!spec || spec->args_count != 1)
> +	if (!spec)
>  		return ERR_PTR(-EINVAL);
>  
>  	mutex_lock(&icc_lock);
> 

Reviewed-by: Chanwoo Choi <cw00.choi@...sung.com>

-- 
Best Regards,
Chanwoo Choi
Samsung Electronics