Re: [PATCH v3 8/9] soc: qcom: cpr3: Add IPQ9574 definitions

From: Dmitry Baryshkov
Date: Thu Jun 27 2024 - 09:46:31 EST


On Thu, Jun 27, 2024 at 12:53:18PM GMT, Varadarajan Narayanan wrote:
> On Wed, Jun 26, 2024 at 09:27:53PM +0300, Dmitry Baryshkov wrote:
> > On Wed, Jun 26, 2024 at 04:10:01PM GMT, Varadarajan Narayanan wrote:
> > > From: Praveenkumar I <quic_ipkumar@xxxxxxxxxxx>
> > >
> > > Add thread, scaling factor, CPR descriptor defines to enable CPR
> > > on IPQ9574.
> > >
> > > Signed-off-by: Praveenkumar I <quic_ipkumar@xxxxxxxxxxx>
> > > Signed-off-by: Varadarajan Narayanan <quic_varada@xxxxxxxxxxx>
> > > ---
> > > v3: Fix patch author
> > > Included below information in cover letter
> > > v2: Fix Signed-off-by order
> > > Depends:
> > > [1] https://lore.kernel.org/lkml/20230217-topic-cpr3h-v14-0-9fd23241493d@xxxxxxxxxx/T/
> > > [2] https://github.com/quic-varada/cpr/commits/konrad/
> > > ---
> > > drivers/pmdomain/qcom/cpr3.c | 137 +++++++++++++++++++++++++++++++++++
> > > 1 file changed, 137 insertions(+)
> > >
> > > diff --git a/drivers/pmdomain/qcom/cpr3.c b/drivers/pmdomain/qcom/cpr3.c
> > > index c28028be50d8..66c8a4bd9adc 100644
> > > --- a/drivers/pmdomain/qcom/cpr3.c
> > > +++ b/drivers/pmdomain/qcom/cpr3.c
> >
> > > +
> > > +static const struct cpr_desc ipq9574_cpr_desc = {
> > > + .cpr_type = CTRL_TYPE_CPR4,
> >
> > So, is it CPR4 or CPRh?
>
> CPR4.

Then why do you have cprh in the compatible?

>
> > > + .num_threads = 1,
> > > + .apm_threshold = 850000,
> > > + .apm_crossover = 880000,
> > > + .apm_hysteresis = 0,
> > > + .cpr_base_voltage = 700000,
> > > + .cpr_max_voltage = 1100000,
> > > + .timer_delay_us = 5000,
> > > + .timer_cons_up = 0,
> > > + .timer_cons_down = 0,
> > > + .up_threshold = 2,
> > > + .down_threshold = 2,
> > > + .idle_clocks = 15,
> > > + .count_mode = CPR3_CPR_CTL_COUNT_MODE_ALL_AT_ONCE_MIN,
> > > + .count_repeat = 1,
> > > + .gcnt_us = 1,
> > > + .vreg_step_fixed = 12500,
> > > + .vreg_step_up_limit = 1,
> > > + .vreg_step_down_limit = 1,
> > > + .vdd_settle_time_us = 34,
> > > + .corner_settle_time_us = 6,
> > > + .reduce_to_corner_uV = true,
> > > + .hw_closed_loop_en = false,
> > > + .threads = (const struct cpr_thread_desc *[]) {
> > > + &ipq9574_thread_silver,
> >
> > If it's silver, where is gold or bronze?
>
> Will rename this as "ipq9574_thread"
>
> Thanks
> Varada
>
> > > + },
> > > +};
> > > +
> > > +static const struct cpr_acc_desc ipq9574_cpr_acc_desc = {
> > > + .cpr_desc = &ipq9574_cpr_desc,
> > > +};
> > > +
> > > static const int sdm630_gold_scaling_factor[][CPR3_RO_COUNT] = {
> > > /* Same RO factors for all fuse corners */
> > > {
> > > @@ -2828,6 +2964,7 @@ static void cpr_remove(struct platform_device *pdev)
> > > }
> > >
> > > static const struct of_device_id cpr3_match_table[] = {
> > > + { .compatible = "qcom,ipq9574-cprh", .data = &ipq9574_cpr_acc_desc },
> > > { .compatible = "qcom,msm8998-cprh", .data = &msm8998_cpr_acc_desc },
> > > { .compatible = "qcom,sdm630-cprh", .data = &sdm630_cpr_acc_desc },
> > > { }
> > > --
> > > 2.34.1
> > >
> >
> > --
> > With best wishes
> > Dmitry

--
With best wishes
Dmitry