Re: [PATCH 1/3] opp: core: add regulators enable and disable

[Viresh Kumar]

On 08-07-19, 16:11, k.konieczny@xxxxxxxxxxxxxxxxxxx wrote:
> From: Kamil Konieczny <k.konieczny@xxxxxxxxxxxxxxxxxxx>
> 
> Add enable regulators to dev_pm_opp_set_regulators() and disable
> regulators to dev_pm_opp_put_regulators(). This prepares for
> converting exynos-bus devfreq driver to use dev_pm_opp_set_rate().
> 
> Signed-off-by: Kamil Konieczny <k.konieczny@xxxxxxxxxxxxxxxxxxx>
> ---
>  drivers/opp/core.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/drivers/opp/core.c b/drivers/opp/core.c
> index 0e7703fe733f..947cac452854 100644
> --- a/drivers/opp/core.c
> +++ b/drivers/opp/core.c
> @@ -1580,8 +1580,19 @@ struct opp_table *dev_pm_opp_set_regulators(struct device *dev,
>  	if (ret)
>  		goto free_regulators;
>  
> +	for (i = 0; i < opp_table->regulator_count; i++) {
> +		ret = regulator_enable(opp_table->regulators[i]);
> +		if (ret < 0)
> +			goto disable;
> +	}

I am wondering on why is this really required as this isn't done for
any other platform, probably because the regulators are enabled by
bootloader and are always on.

-- 
viresh