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Subject[PATCH v4 06/13] regulator: qcom_spmi: Add support for LDO_510 and FTSMPS
Date
Add support for LDO_510 and FTSMPS3 regulators, all belonging to register
layout HFSMPS. This is done in preparation for adding support for the
PM6125 PMIC.

For FTSMPS3 and LDO_510, only IDLE and NORMAL modes are selectable (no
FAST).

The inspiration for the magic constants was taken from [1]

[1]: https://source.codeaurora.org/quic/la/kernel/msm-5.4/commit/?h=kernel.lnx.5.4.r1-rel&id=d1220daeffaa440ffff0a8c47322eb0033bf54f5

Signed-off-by: Adam Skladowski <a39.skl@gmail.com>
Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
---
drivers/regulator/qcom_spmi-regulator.c | 38 ++++++++++++++++++++++++-
1 file changed, 37 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/qcom_spmi-regulator.c b/drivers/regulator/qcom_spmi-regulator.c
index 04e9845a9300..0763a5b7a2ce 100644
--- a/drivers/regulator/qcom_spmi-regulator.c
+++ b/drivers/regulator/qcom_spmi-regulator.c
@@ -99,6 +99,8 @@ enum spmi_regulator_logical_type {
SPMI_REGULATOR_LOGICAL_TYPE_ULT_LDO,
SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS426,
SPMI_REGULATOR_LOGICAL_TYPE_HFS430,
+ SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS3,
+ SPMI_REGULATOR_LOGICAL_TYPE_LDO_510,
SPMI_REGULATOR_LOGICAL_TYPE_HFSMPS,
};

@@ -168,6 +170,16 @@ enum spmi_regulator_subtype {
SPMI_REGULATOR_SUBTYPE_HT_P150 = 0x35,
SPMI_REGULATOR_SUBTYPE_HT_P600 = 0x3d,
SPMI_REGULATOR_SUBTYPE_HFSMPS_510 = 0x0a,
+ SPMI_REGULATOR_SUBTYPE_FTSMPS_510 = 0x0b,
+ SPMI_REGULATOR_SUBTYPE_LV_P150_510 = 0x71,
+ SPMI_REGULATOR_SUBTYPE_LV_P300_510 = 0x72,
+ SPMI_REGULATOR_SUBTYPE_LV_P600_510 = 0x73,
+ SPMI_REGULATOR_SUBTYPE_N300_510 = 0x6a,
+ SPMI_REGULATOR_SUBTYPE_N600_510 = 0x6b,
+ SPMI_REGULATOR_SUBTYPE_N1200_510 = 0x6c,
+ SPMI_REGULATOR_SUBTYPE_MV_P50_510 = 0x7a,
+ SPMI_REGULATOR_SUBTYPE_MV_P150_510 = 0x7b,
+ SPMI_REGULATOR_SUBTYPE_MV_P600_510 = 0x7d,
};

enum spmi_common_regulator_registers {
@@ -576,6 +588,14 @@ static struct spmi_voltage_range ht_p600_ranges[] = {
SPMI_VOLTAGE_RANGE(0, 1704000, 1704000, 1896000, 1896000, 8000),
};

+static struct spmi_voltage_range nldo_510_ranges[] = {
+ SPMI_VOLTAGE_RANGE(0, 320000, 320000, 1304000, 1304000, 8000),
+};
+
+static struct spmi_voltage_range ftsmps510_ranges[] = {
+ SPMI_VOLTAGE_RANGE(0, 300000, 300000, 1372000, 1372000, 4000),
+};
+
static DEFINE_SPMI_SET_POINTS(pldo);
static DEFINE_SPMI_SET_POINTS(nldo1);
static DEFINE_SPMI_SET_POINTS(nldo2);
@@ -598,6 +618,8 @@ static DEFINE_SPMI_SET_POINTS(ht_nldo);
static DEFINE_SPMI_SET_POINTS(hfs430);
static DEFINE_SPMI_SET_POINTS(ht_p150);
static DEFINE_SPMI_SET_POINTS(ht_p600);
+static DEFINE_SPMI_SET_POINTS(nldo_510);
+static DEFINE_SPMI_SET_POINTS(ftsmps510);

static inline int spmi_vreg_read(struct spmi_regulator *vreg, u16 addr, u8 *buf,
int len)
@@ -1162,7 +1184,10 @@ spmi_regulator_hfsmps_set_mode(struct regulator_dev *rdev, unsigned int mode)
val = SPMI_HFSMPS_MODE_AUTO_MASK;
break;
case REGULATOR_MODE_IDLE:
- val = SPMI_HFSMPS_MODE_LPM_MASK;
+ val = vreg->logical_type ==
+ SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS3 ?
+ SPMI_HFSMPS_MODE_RETENTION_MASK :
+ SPMI_HFSMPS_MODE_LPM_MASK;
break;
default:
return -EINVAL;
@@ -1637,6 +1662,16 @@ static const struct spmi_regulator_mapping supported_regulators[] = {
SPMI_VREG(ULT_LDO, P300, 0, INF, ULT_LDO, ult_ldo, ult_pldo, 10000),
SPMI_VREG(ULT_LDO, P150, 0, INF, ULT_LDO, ult_ldo, ult_pldo, 10000),
SPMI_VREG(ULT_LDO, P50, 0, INF, ULT_LDO, ult_ldo, ult_pldo, 5000),
+ SPMI_VREG(LDO, LV_P150_510, 0, INF, LDO_510, hfsmps, ht_lvpldo, 10000),
+ SPMI_VREG(LDO, LV_P300_510, 0, INF, LDO_510, hfsmps, ht_lvpldo, 10000),
+ SPMI_VREG(LDO, LV_P600_510, 0, INF, LDO_510, hfsmps, ht_lvpldo, 10000),
+ SPMI_VREG(LDO, MV_P50_510, 0, INF, LDO_510, hfsmps, pldo660, 10000),
+ SPMI_VREG(LDO, MV_P150_510, 0, INF, LDO_510, hfsmps, pldo660, 10000),
+ SPMI_VREG(LDO, MV_P600_510, 0, INF, LDO_510, hfsmps, pldo660, 10000),
+ SPMI_VREG(LDO, N300_510, 0, INF, LDO_510, hfsmps, nldo_510, 10000),
+ SPMI_VREG(LDO, N600_510, 0, INF, LDO_510, hfsmps, nldo_510, 10000),
+ SPMI_VREG(LDO, N1200_510, 0, INF, LDO_510, hfsmps, nldo_510, 10000),
+ SPMI_VREG(FTS, FTSMPS_510, 0, INF, FTSMPS3, hfsmps, ftsmps510, 100000),
};

static void spmi_calculate_num_voltages(struct spmi_voltage_set_points *points)
@@ -1955,6 +1990,7 @@ static int spmi_regulator_of_parse(struct device_node *node,
return ret;
break;
case SPMI_REGULATOR_LOGICAL_TYPE_HFSMPS:
+ case SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS3:
ret = spmi_regulator_init_slew_rate_hfsmps(vreg);
if (ret)
return ret;
--
2.37.1
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