Re: [PATCH] regulator: qcom_smd: Fix up PM8950 regulator configuration

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On Thu 25 Feb 15:37 CST 2021, Konrad Dybcio wrote:

> Following changes have been made:
> 
> - S5, L4, L18, L20 and L21 were removed (S5 is managed by
> SPMI, whereas the rest seems not to exist [or at least it's blocked
> by Sony Loire /MSM8956/ RPM firmware])
> 
> - Supply maps have were adjusted to reflect regulator changes.

Please describe why, not what in your commit message.

> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>
> ---
>  drivers/regulator/qcom_smd-regulator.c | 35 +++++++++++++-------------
>  1 file changed, 17 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c
> index bb944ee5fe3b..5188f58b4718 100644
> --- a/drivers/regulator/qcom_smd-regulator.c
> +++ b/drivers/regulator/qcom_smd-regulator.c
> @@ -843,32 +843,31 @@ static const struct rpm_regulator_data rpm_pm8950_regulators[] = {
>  	{ "s2", QCOM_SMD_RPM_SMPA, 2, &pm8950_hfsmps, "vdd_s2" },
>  	{ "s3", QCOM_SMD_RPM_SMPA, 3, &pm8950_hfsmps, "vdd_s3" },
>  	{ "s4", QCOM_SMD_RPM_SMPA, 4, &pm8950_hfsmps, "vdd_s4" },
> -	{ "s5", QCOM_SMD_RPM_SMPA, 5, &pm8950_ftsmps2p5, "vdd_s5" },
> +	/* S5 is managed via SPMI. */

Why isn't it sufficient to just omit s5 from DT then?

>  	{ "s6", QCOM_SMD_RPM_SMPA, 6, &pm8950_hfsmps, "vdd_s6" },
>  
>  	{ "l1", QCOM_SMD_RPM_LDOA, 1, &pm8950_ult_nldo, "vdd_l1_l19" },
>  	{ "l2", QCOM_SMD_RPM_LDOA, 2, &pm8950_ult_nldo, "vdd_l2_l23" },
>  	{ "l3", QCOM_SMD_RPM_LDOA, 3, &pm8950_ult_nldo, "vdd_l3" },
> -	{ "l4", QCOM_SMD_RPM_LDOA, 4, &pm8950_ult_pldo, "vdd_l4_l5_l6_l7_l16" },
> -	{ "l5", QCOM_SMD_RPM_LDOA, 5, &pm8950_pldo_lv, "vdd_l4_l5_l6_l7_l16" },
> -	{ "l6", QCOM_SMD_RPM_LDOA, 6, &pm8950_pldo_lv, "vdd_l4_l5_l6_l7_l16" },
> -	{ "l7", QCOM_SMD_RPM_LDOA, 7, &pm8950_pldo_lv, "vdd_l4_l5_l6_l7_l16" },
> +	/* L4 seems not to exist. */

No LDO4 at all? Or it's one of those regulators where the RPM interface
just says no (in your firmware)?

> +	{ "l5", QCOM_SMD_RPM_LDOA, 5, &pm8950_pldo_lv, "vdd_l5_l6_l7_l16" },

The fact that it's not possible to modify l4 doesn't mean that the input
pin isn't named  "vdd_l4_l5...".

Regards,
Bjorn

> +	{ "l6", QCOM_SMD_RPM_LDOA, 6, &pm8950_pldo_lv, "vdd_l5_l6_l7_l16" },
> +	{ "l7", QCOM_SMD_RPM_LDOA, 7, &pm8950_pldo_lv, "vdd_l5_l6_l7_l16" },
>  	{ "l8", QCOM_SMD_RPM_LDOA, 8, &pm8950_ult_pldo, "vdd_l8_l11_l12_l17_l22" },
>  	{ "l9", QCOM_SMD_RPM_LDOA, 9, &pm8950_ult_pldo, "vdd_l9_l10_l13_l14_l15_l18" },
>  	{ "l10", QCOM_SMD_RPM_LDOA, 10, &pm8950_ult_nldo, "vdd_l9_l10_l13_l14_l15_l18"},
> -	{ "l11", QCOM_SMD_RPM_LDOA, 11, &pm8950_ult_pldo, "vdd_l8_l11_l12_l17_l22"},
> -	{ "l12", QCOM_SMD_RPM_LDOA, 12, &pm8950_ult_pldo, "vdd_l8_l11_l12_l17_l22"},
> -	{ "l13", QCOM_SMD_RPM_LDOA, 13, &pm8950_ult_pldo, "vdd_l9_l10_l13_l14_l15_l18"},
> -	{ "l14", QCOM_SMD_RPM_LDOA, 14, &pm8950_ult_pldo, "vdd_l9_l10_l13_l14_l15_l18"},
> -	{ "l15", QCOM_SMD_RPM_LDOA, 15, &pm8950_ult_pldo, "vdd_l9_l10_l13_l14_l15_l18"},
> -	{ "l16", QCOM_SMD_RPM_LDOA, 16, &pm8950_ult_pldo, "vdd_l4_l5_l6_l7_l16"},
> -	{ "l17", QCOM_SMD_RPM_LDOA, 17, &pm8950_ult_pldo, "vdd_l8_l11_l12_l17_l22"},
> -	{ "l18", QCOM_SMD_RPM_LDOA, 18, &pm8950_ult_pldo, "vdd_l9_l10_l13_l14_l15_l18"},
> -	{ "l19", QCOM_SMD_RPM_LDOA, 18, &pm8950_pldo, "vdd_l1_l19"},
> -	{ "l20", QCOM_SMD_RPM_LDOA, 18, &pm8950_pldo, "vdd_l20"},
> -	{ "l21", QCOM_SMD_RPM_LDOA, 18, &pm8950_pldo, "vdd_l21"},
> -	{ "l22", QCOM_SMD_RPM_LDOA, 18, &pm8950_pldo, "vdd_l8_l11_l12_l17_l22"},
> -	{ "l23", QCOM_SMD_RPM_LDOA, 18, &pm8950_pldo, "vdd_l2_l23"},
> +	{ "l11", QCOM_SMD_RPM_LDOA, 11, &pm8950_ult_pldo, "vdd_l8_l11_l12_l17_l22" },
> +	{ "l12", QCOM_SMD_RPM_LDOA, 12, &pm8950_ult_pldo, "vdd_l8_l11_l12_l17_l22" },
> +	{ "l13", QCOM_SMD_RPM_LDOA, 13, &pm8950_ult_pldo, "vdd_l9_l10_l13_l14_l15_l18" },
> +	{ "l14", QCOM_SMD_RPM_LDOA, 14, &pm8950_ult_pldo, "vdd_l9_l10_l13_l14_l15_l18" },
> +	{ "l15", QCOM_SMD_RPM_LDOA, 15, &pm8950_ult_pldo, "vdd_l9_l10_l13_l14_l15_l18" },
> +	{ "l16", QCOM_SMD_RPM_LDOA, 16, &pm8950_ult_pldo, "vdd_l5_l6_l7_l16" },
> +	{ "l17", QCOM_SMD_RPM_LDOA, 17, &pm8950_ult_pldo, "vdd_l8_l11_l12_l17_l22" },
> +	/* L18 seems not to exist. */
> +	{ "l19", QCOM_SMD_RPM_LDOA, 19, &pm8950_pldo, "vdd_l1_l19" },
> +	/* L20 & L21 seem not to exist. */
> +	{ "l22", QCOM_SMD_RPM_LDOA, 22, &pm8950_pldo, "vdd_l8_l11_l12_l17_l22" },
> +	{ "l23", QCOM_SMD_RPM_LDOA, 23, &pm8950_pldo, "vdd_l2_l23" },
>  	{}
>  };
>  
> -- 
> 2.30.1
> 



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