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regulator: pca9450: link regulator inputs to supply groups

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Add supply_name entries for all PCA9450 regulators to describe their
respective input pin groups (INB13, INB26, INB45, INL1). This links each
buck and LDO to the upstream supply that powers its input group.

On some systems, power faults such as undervoltage are detected before
the PMIC itself. Defining supply relationships allows the regulator
framework to propagate such events properly through the dependency
chain.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20251027124415.989301-3-o.rempel@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Oleksij Rempel 2025-10-27 13:44:15 +01:00 committed by Mark Brown
parent 86df0030b7
commit 4c33cef589
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 30 additions and 0 deletions
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30
drivers/regulator/pca9450-regulator.c
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@ -355,6 +355,7 @@ static struct pca9450_regulator_desc pca9450a_regulators[] = {
{
.desc = {
.name = "buck1",
.supply_name = "inb13",
.of_match = of_match_ptr("BUCK1"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK1,
@ -388,6 +389,7 @@ static struct pca9450_regulator_desc pca9450a_regulators[] = {
{
.desc = {
.name = "buck2",
.supply_name = "inb26",
.of_match = of_match_ptr("BUCK2"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK2,
@ -421,6 +423,7 @@ static struct pca9450_regulator_desc pca9450a_regulators[] = {
{
.desc = {
.name = "buck3",
.supply_name = "inb13",
.of_match = of_match_ptr("BUCK3"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK3,
@ -454,6 +457,7 @@ static struct pca9450_regulator_desc pca9450a_regulators[] = {
{
.desc = {
.name = "buck4",
.supply_name = "inb45",
.of_match = of_match_ptr("BUCK4"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK4,
@ -478,6 +482,7 @@ static struct pca9450_regulator_desc pca9450a_regulators[] = {
{
.desc = {
.name = "buck5",
.supply_name = "inb45",
.of_match = of_match_ptr("BUCK5"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK5,
@ -502,6 +507,7 @@ static struct pca9450_regulator_desc pca9450a_regulators[] = {
{
.desc = {
.name = "buck6",
.supply_name = "inb26",
.of_match = of_match_ptr("BUCK6"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK6,
@ -526,6 +532,7 @@ static struct pca9450_regulator_desc pca9450a_regulators[] = {
{
.desc = {
.name = "ldo1",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO1"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO1,
@ -544,6 +551,7 @@ static struct pca9450_regulator_desc pca9450a_regulators[] = {
{
.desc = {
.name = "ldo2",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO2"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO2,
@ -562,6 +570,7 @@ static struct pca9450_regulator_desc pca9450a_regulators[] = {
{
.desc = {
.name = "ldo3",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO3"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO3,
@ -580,6 +589,7 @@ static struct pca9450_regulator_desc pca9450a_regulators[] = {
{
.desc = {
.name = "ldo4",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO4"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO4,
@ -598,6 +608,7 @@ static struct pca9450_regulator_desc pca9450a_regulators[] = {
{
.desc = {
.name = "ldo5",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO5"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO5,
@ -623,6 +634,7 @@ static struct pca9450_regulator_desc pca9450bc_regulators[] = {
{
.desc = {
.name = "buck1",
.supply_name = "inb13",
.of_match = of_match_ptr("BUCK1"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK1,
@ -656,6 +668,7 @@ static struct pca9450_regulator_desc pca9450bc_regulators[] = {
{
.desc = {
.name = "buck2",
.supply_name = "inb26",
.of_match = of_match_ptr("BUCK2"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK2,
@ -689,6 +702,7 @@ static struct pca9450_regulator_desc pca9450bc_regulators[] = {
{
.desc = {
.name = "buck4",
.supply_name = "inb45",
.of_match = of_match_ptr("BUCK4"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK4,
@ -713,6 +727,7 @@ static struct pca9450_regulator_desc pca9450bc_regulators[] = {
{
.desc = {
.name = "buck5",
.supply_name = "inb45",
.of_match = of_match_ptr("BUCK5"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK5,
@ -737,6 +752,7 @@ static struct pca9450_regulator_desc pca9450bc_regulators[] = {
{
.desc = {
.name = "buck6",
.supply_name = "inb26",
.of_match = of_match_ptr("BUCK6"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK6,
@ -761,6 +777,7 @@ static struct pca9450_regulator_desc pca9450bc_regulators[] = {
{
.desc = {
.name = "ldo1",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO1"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO1,
@ -779,6 +796,7 @@ static struct pca9450_regulator_desc pca9450bc_regulators[] = {
{
.desc = {
.name = "ldo2",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO2"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO2,
@ -797,6 +815,7 @@ static struct pca9450_regulator_desc pca9450bc_regulators[] = {
{
.desc = {
.name = "ldo3",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO3"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO3,
@ -815,6 +834,7 @@ static struct pca9450_regulator_desc pca9450bc_regulators[] = {
{
.desc = {
.name = "ldo4",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO4"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO4,
@ -833,6 +853,7 @@ static struct pca9450_regulator_desc pca9450bc_regulators[] = {
{
.desc = {
.name = "ldo5",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO5"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO5,
@ -854,6 +875,7 @@ static struct pca9450_regulator_desc pca9451a_regulators[] = {
{
.desc = {
.name = "buck1",
.supply_name = "inb13",
.of_match = of_match_ptr("BUCK1"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK1,
@ -886,6 +908,7 @@ static struct pca9450_regulator_desc pca9451a_regulators[] = {
{
.desc = {
.name = "buck2",
.supply_name = "inb26",
.of_match = of_match_ptr("BUCK2"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK2,
@ -918,6 +941,7 @@ static struct pca9450_regulator_desc pca9451a_regulators[] = {
{
.desc = {
.name = "buck4",
.supply_name = "inb45",
.of_match = of_match_ptr("BUCK4"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK4,
@ -942,6 +966,7 @@ static struct pca9450_regulator_desc pca9451a_regulators[] = {
{
.desc = {
.name = "buck5",
.supply_name = "inb45",
.of_match = of_match_ptr("BUCK5"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK5,
@ -966,6 +991,7 @@ static struct pca9450_regulator_desc pca9451a_regulators[] = {
{
.desc = {
.name = "buck6",
.supply_name = "inb26",
.of_match = of_match_ptr("BUCK6"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_BUCK6,
@ -990,6 +1016,7 @@ static struct pca9450_regulator_desc pca9451a_regulators[] = {
{
.desc = {
.name = "ldo1",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO1"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO1,
@ -1008,6 +1035,7 @@ static struct pca9450_regulator_desc pca9451a_regulators[] = {
{
.desc = {
.name = "ldo3",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO3"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO3,
@ -1026,6 +1054,7 @@ static struct pca9450_regulator_desc pca9451a_regulators[] = {
{
.desc = {
.name = "ldo4",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO4"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO4,
@ -1044,6 +1073,7 @@ static struct pca9450_regulator_desc pca9451a_regulators[] = {
{
.desc = {
.name = "ldo5",
.supply_name = "inl1",
.of_match = of_match_ptr("LDO5"),
.regulators_node = of_match_ptr("regulators"),
.id = PCA9450_LDO5,