Re: [PATCH v7 2/8] cpufreq: mediatek: Enable clock and regulator

Re: [PATCH v7 2/8] cpufreq: mediatek: Enable clock and regulator

[Viresh Kumar]

On 10-07-20, 10:31, Andrew-sh.Cheng wrote:
> From: "Andrew-sh.Cheng" <andrew-sh.cheng@mediatek.com>
> 
> Need to enable regulator,
> so that the max/min requested value will be recorded
> even it is not applied right away.
> 
> Intermediate clock is not always enabled by ccf in different projects,
> so cpufreq should enable it by itself.
> 
> Change-Id: I9f4c8b1ea793794f5f9cdc65427daad1393f5df8

You are on V7 right now, these should have been gone long back.

> Signed-off-by: Andrew-sh.Cheng <andrew-sh.cheng@mediatek.com>
> ---
>  drivers/cpufreq/mediatek-cpufreq.c | 33 +++++++++++++++++++++++++++++----
>  1 file changed, 29 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/cpufreq/mediatek-cpufreq.c b/drivers/cpufreq/mediatek-cpufreq.c
> index 0c98dd08273d..4b479c110cc9 100644
> --- a/drivers/cpufreq/mediatek-cpufreq.c
> +++ b/drivers/cpufreq/mediatek-cpufreq.c
> @@ -350,6 +350,11 @@ static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu)
>  		ret = PTR_ERR(proc_reg);
>  		goto out_free_resources;
>  	}
> +	ret = regulator_enable(proc_reg);
> +	if (ret) {
> +		pr_warn("enable vproc for cpu%d fail\n", cpu);
> +		goto out_free_resources;
> +	}

This is already done by the OPP core now.

-- 
viresh

Re: [PATCH v7 5/8] opp: Modify opp API, dev_pm_opp_get_freq(), find freq in opp, even it is disabled

[Viresh Kumar]

On 10-07-20, 10:31, Andrew-sh.Cheng wrote:
> From: "Andrew-sh.Cheng" <andrew-sh.cheng@mediatek.com>
> 
> Modify dev_pm_opp_get_freq() to return freqeuncy
> even this opp item is not available.
> So that we can get the information of disable opp items.
> 
> Change-Id: I54dacf13050397f5080ccdb8b07d6220e7461e4e
> CR-Id:
> Feature:
> Signed-off-by: Andrew-sh.Cheng <andrew-sh.cheng@mediatek.com>
> ---
>  drivers/opp/core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/opp/core.c b/drivers/opp/core.c
> index eed42d6b2e6b..5213e0462382 100644
> --- a/drivers/opp/core.c
> +++ b/drivers/opp/core.c
> @@ -118,7 +118,7 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_get_voltage);
>   */
>  unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
>  {
> -	if (IS_ERR_OR_NULL(opp) || !opp->available) {
> +	if (IS_ERR_OR_NULL(opp)) {
>  		pr_err("%s: Invalid parameters\n", __func__);
>  		return 0;
>  	}

Please cleanup this patch for all the extra stuff that isn't required mainline
and send it again to me separately from this series.

-- 
viresh

Re: [PATCH v7 2/8] cpufreq: mediatek: Enable clock and regulator

[Viresh Kumar]

On 14-07-20, 21:18, andrew-sh.cheng wrote:
> On Mon, 2020-07-13 at 15:09 +0530, Viresh Kumar wrote:
> > On 10-07-20, 10:31, Andrew-sh.Cheng wrote:
> > > From: "Andrew-sh.Cheng" <andrew-sh.cheng@mediatek.com>
> > > 
> > > Need to enable regulator,
> > > so that the max/min requested value will be recorded
> > > even it is not applied right away.
> > > 
> > > Intermediate clock is not always enabled by ccf in different projects,
> > > so cpufreq should enable it by itself.
> > > 
> > > Change-Id: I9f4c8b1ea793794f5f9cdc65427daad1393f5df8
> > 
> > You are on V7 right now, these should have been gone long back.
> 
> Hi Viresh, 
> Sorry for forgetting to remove the change-ID message.
> 
> > 
> > > Signed-off-by: Andrew-sh.Cheng <andrew-sh.cheng@mediatek.com>
> > > ---
> > >  drivers/cpufreq/mediatek-cpufreq.c | 33 +++++++++++++++++++++++++++++----
> > >  1 file changed, 29 insertions(+), 4 deletions(-)
> > > 
> > > diff --git a/drivers/cpufreq/mediatek-cpufreq.c b/drivers/cpufreq/mediatek-cpufreq.c
> > > index 0c98dd08273d..4b479c110cc9 100644
> > > --- a/drivers/cpufreq/mediatek-cpufreq.c
> > > +++ b/drivers/cpufreq/mediatek-cpufreq.c
> > > @@ -350,6 +350,11 @@ static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu)
> > >  		ret = PTR_ERR(proc_reg);
> > >  		goto out_free_resources;
> > >  	}
> > > +	ret = regulator_enable(proc_reg);
> > > +	if (ret) {
> > > +		pr_warn("enable vproc for cpu%d fail\n", cpu);
> > > +		goto out_free_resources;
> > > +	}
> > 
> > This is already done by the OPP core now.
> 
> Do you mean I can use dev_pm_opp_set_regulators() and
> dev_pm_opp_set_rate() to do dvfs?
> Due to mediatek-cpufreq may change Vproc and Vsram by special flow, that
> is not suitable.

Sorry about that. I completely missed that you aren't using
dev_pm_opp_set_rate().

-- 
viresh