linux-kernel - [PATCH v4 2/6] regulator: qcom_spmi: add support for HT

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Message-Id: <20220518184825.1034976-2-robimarko@gmail.com>
Date:   Wed, 18 May 2022 20:48:21 +0200
From:   Robert Marko <robimarko@...il.com>
To:     agross@...nel.org, bjorn.andersson@...aro.org, lgirdwood@...il.com,
        broonie@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        konrad.dybcio@...ainline.org
Cc:     Robert Marko <robimarko@...il.com>
Subject: [PATCH v4 2/6] regulator: qcom_spmi: add support for HT_P150

HT_P150 is a LDO PMOS regulator based on LV P150 using HFS430 layout
found in PMP8074 and PMS405 PMIC-s.

Both PMP8074 and PMS405 define the programmable range as 1.616V to 3.304V
but the actual MAX output voltage depends on the exact LDO in each of
the PMIC-s.

It has a max current of 150mA, voltage step of 8mV.

Signed-off-by: Robert Marko <robimarko@...il.com>
---
 drivers/regulator/qcom_spmi-regulator.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/regulator/qcom_spmi-regulator.c b/drivers/regulator/qcom_spmi-regulator.c
index 02bfce981150..38bbc70241ae 100644
--- a/drivers/regulator/qcom_spmi-regulator.c
+++ b/drivers/regulator/qcom_spmi-regulator.c
@@ -164,6 +164,7 @@ enum spmi_regulator_subtype {
 	SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL3	= 0x0f,
 	SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL4	= 0x10,
 	SPMI_REGULATOR_SUBTYPE_HFS430		= 0x0a,
+	SPMI_REGULATOR_SUBTYPE_HT_P150		= 0x35,
 };
 
 enum spmi_common_regulator_registers {
@@ -544,6 +545,10 @@ static struct spmi_voltage_range hfs430_ranges[] = {
 	SPMI_VOLTAGE_RANGE(0, 320000, 320000, 2040000, 2040000, 8000),
 };
 
+static struct spmi_voltage_range ht_p150_ranges[] = {
+	SPMI_VOLTAGE_RANGE(0, 1616000, 1616000, 3304000, 3304000, 8000),
+};
+
 static DEFINE_SPMI_SET_POINTS(pldo);
 static DEFINE_SPMI_SET_POINTS(nldo1);
 static DEFINE_SPMI_SET_POINTS(nldo2);
@@ -564,6 +569,7 @@ static DEFINE_SPMI_SET_POINTS(nldo660);
 static DEFINE_SPMI_SET_POINTS(ht_lvpldo);
 static DEFINE_SPMI_SET_POINTS(ht_nldo);
 static DEFINE_SPMI_SET_POINTS(hfs430);
+static DEFINE_SPMI_SET_POINTS(ht_p150);
 
 static inline int spmi_vreg_read(struct spmi_regulator *vreg, u16 addr, u8 *buf,
 				 int len)
@@ -1458,6 +1464,7 @@ static const struct regulator_ops spmi_hfs430_ops = {
 
 static const struct spmi_regulator_mapping supported_regulators[] = {
 	/*           type subtype dig_min dig_max ltype ops setpoints hpm_min */
+	SPMI_VREG(LDO,   HT_P150,  0, INF, HFS430, hfs430, ht_p150, 10000),
 	SPMI_VREG(BUCK,  GP_CTL,   0, INF, SMPS,   smps,   smps,   100000),
 	SPMI_VREG(BUCK,  HFS430,   0, INF, HFS430, hfs430, hfs430,  10000),
 	SPMI_VREG(LDO,   N300,     0, INF, LDO,    ldo,    nldo1,   10000),
-- 
2.36.1