Re: [PATCH 3/4] regulator: qcom-rpmh: Add missing regulators in PM6350

["Luca Weiss" <luca.weiss@fairphone.com>]

Hi Konrad,

On Wed Sep 2, 2026 at 10:51 AM CEST, Konrad Dybcio wrote:
> On 9/1/26 10:58 AM, Luca Weiss wrote:
>> Add the missing smps3-6 and ldo17 definitions. While smps3/5 and ldo17
>> are not used from the rpmh regulator driver on SM6350, the regulators do
>> exist, so add them with the types based on the datasheet.
>> 
>> Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
>> ---
>>  drivers/regulator/qcom-rpmh-regulator.c | 7 +++++--
>>  1 file changed, 5 insertions(+), 2 deletions(-)
>> 
>> diff --git a/drivers/regulator/qcom-rpmh-regulator.c b/drivers/regulator/qcom-rpmh-regulator.c
>> index dd2265961151..7d20f3e47760 100644
>> --- a/drivers/regulator/qcom-rpmh-regulator.c
>> +++ b/drivers/regulator/qcom-rpmh-regulator.c
>> @@ -1591,7 +1591,10 @@ static const struct rpmh_vreg_init_data pm6150l_vreg_data[] = {
>>  static const struct rpmh_vreg_init_data pm6350_vreg_data[] = {
>>  	RPMH_VREG("smps1",  SMPS, 1,  &pmic5_ftsmps510, "vdd-s1"),
>>  	RPMH_VREG("smps2",  SMPS, 2,  &pmic5_hfsmps510, "vdd-s2"),
>> -	/* smps3 - smps5 not configured */
>> +	RPMH_VREG("smps3",  SMPS, 3,  &pmic5_ftsmps510, "vdd-s3"),
>> +	RPMH_VREG("smps4",  SMPS, 4,  &pmic5_ftsmps510, "vdd-s4"),
>> +	RPMH_VREG("smps5",  SMPS, 5,  &pmic5_ftsmps510, "vdd-s5"),
>> +	RPMH_VREG("smps6",  SMPS, 6,  &pmic5_hfsmps510, "vdd-s6"),
>>  	RPMH_VREG("ldo1",   LDO,  1,  &pmic5_nldo,      "vdd-l1"),
>>  	RPMH_VREG("ldo2",   LDO,  2,  &pmic5_pldo,      "vdd-l2-l5-l7"),
>>  	RPMH_VREG("ldo3",   LDO,  3,  &pmic5_pldo,      "vdd-l3-l6-l8-l9-l10"),
>> @@ -1608,7 +1611,7 @@ static const struct rpmh_vreg_init_data pm6350_vreg_data[] = {
>>  	RPMH_VREG("ldo14",  LDO,  14, &pmic5_pldo,      "vdd-l12-l14"),
>>  	RPMH_VREG("ldo15",  LDO,  15, &pmic5_nldo,      "vdd-l15-l19-l22"),
>>  	RPMH_VREG("ldo16",  LDO,  16, &pmic5_nldo,      "vdd-l16"),
>> -	/* ldo17 not configured */
>> +	RPMH_VREG("ldo17",  LDO,  17, &pmic5_nldo,      "vdd-l17"),
>
> L17 (and other NLDOs on this PMIC) can do 0.312 - 1.304 V, whereas
> the pmic5_nldo config allows a range of 0.32 - 1.296 V. But I suppose
> that is something to fix separately anyway

Can you help with what numbers from the data sheet we're supposed to
use?

In 80-PR887-1 Rev. G, Table 3-20 would suggest L17 is programmable from
0.312V to 1.328V while "output voltage range" is 0.32V-1.304V.

But Table 3-11 does indeed show 0.312V - 1.304V as "Programming range"
for this specific LDO.

So the voltages from the Table 3-11 are the ones to use? The other ones
can be ignored completely? But e.g. the step size is only listed in
3-20.

Sidenote, are the step sizes for the SMPS listed anywhere?

Regards
Luca

>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>
> Konrad