[PATCH v2 8/9] power: pmic: tps65910: add TPS65911 PMIC support
Svyatoslav Ryhel
clamor95 at gmail.com
Thu Jul 20 10:48:03 CEST 2023
Add support to bind the regulators/child nodes with the pmic.
Also adds the pmic i2c based read/write functions to access pmic
registers.
Signed-off-by: Svyatoslav Ryhel <clamor95 at gmail.com>
---
doc/device-tree-bindings/pmic/tps65911.txt | 78 ++++++++++++++++++++++
drivers/power/pmic/pmic_tps65910_dm.c | 49 +++++++++++++-
include/power/tps65910_pmic.h | 52 +++++++++++++++
3 files changed, 176 insertions(+), 3 deletions(-)
create mode 100644 doc/device-tree-bindings/pmic/tps65911.txt
diff --git a/doc/device-tree-bindings/pmic/tps65911.txt b/doc/device-tree-bindings/pmic/tps65911.txt
new file mode 100644
index 0000000000..29270efbfe
--- /dev/null
+++ b/doc/device-tree-bindings/pmic/tps65911.txt
@@ -0,0 +1,78 @@
+Texas Instruments, TPS65911 PMIC
+
+This device uses two drivers:
+- drivers/power/pmic/tps65910.c (for parent device)
+- drivers/power/regulator/tps65911_regulator.c (for child regulators)
+
+This chapter describes the binding info for the PMIC driver and regulators.
+
+Required properties for PMIC:
+- compatible: "ti,tps65911"
+- reg: 0x2d
+
+With those two properties, the pmic device can be used for read/write only.
+To bind each regulator, the optional regulators subnode should exists.
+
+Optional subnode:
+- name: regulators (subnode list of each device's regulator)
+
+Regulators subnode contains set on supported regulators.
+
+Required properties:
+- regulator-name: used for regulator uclass platform data '.name',
+
+List of supported regulator nodes names for tps65911:
+- vdd1, vdd2, vddctrl, vddio
+- ldo1, ldo2, ldo3, ldo4, ldo5, ldo6, ldo7, ldo8
+
+vddio in datasheet is referred as vio, but for reduction of code and
+unification of smps regulators it is named vddio.
+
+Optional:
+- regulator-min-microvolt: minimum allowed Voltage to set
+- regulator-max-microvolt: minimum allowed Voltage to set
+- regulator-always-on: regulator should be never disabled
+- regulator-boot-on: regulator should be enabled by the bootloader
+
+Example:
+
+tps65911 at 2d {
+ compatible = "ti,tps65911";
+ reg = <0x2d>;
+
+ regulators {
+ vdd1 {
+ regulator-name = "vdd_1v2_backlight";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ ...
+
+ vddio {
+ regulator-name = "vdd_1v8_gen";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ ldo1 {
+ regulator-name = "vdd_emmc_core";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ ...
+
+ ldo8 {
+ regulator-name = "vdd_ddr_hs";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1000000>;
+ };
+ };
+};
diff --git a/drivers/power/pmic/pmic_tps65910_dm.c b/drivers/power/pmic/pmic_tps65910_dm.c
index e03ddc98d7..770010d53d 100644
--- a/drivers/power/pmic/pmic_tps65910_dm.c
+++ b/drivers/power/pmic/pmic_tps65910_dm.c
@@ -11,13 +11,19 @@
#include <power/regulator.h>
#include <power/tps65910_pmic.h>
-static const struct pmic_child_info pmic_children_info[] = {
+static const struct pmic_child_info tps65910_children_info[] = {
{ .prefix = "ldo_", .driver = TPS65910_LDO_DRIVER },
{ .prefix = "buck_", .driver = TPS65910_BUCK_DRIVER },
{ .prefix = "boost_", .driver = TPS65910_BOOST_DRIVER },
{ },
};
+static const struct pmic_child_info tps65911_children_info[] = {
+ { .prefix = "ldo", .driver = TPS65911_LDO_DRIVER },
+ { .prefix = "vdd", .driver = TPS65911_VDD_DRIVER },
+ { },
+};
+
static int pmic_tps65910_reg_count(struct udevice *dev)
{
return TPS65910_NUM_REGS;
@@ -47,10 +53,29 @@ static int pmic_tps65910_read(struct udevice *dev, uint reg, u8 *buffer,
return ret;
}
+static int pmic_tps65910_poweroff(struct udevice *dev)
+{
+ int ret;
+
+ ret = pmic_reg_read(dev, TPS65910_REG_DEVICE_CTRL);
+ if (ret < 0)
+ return ret;
+
+ ret |= DEVCTRL_PWR_OFF_MASK;
+
+ pmic_reg_write(dev, TPS65910_REG_DEVICE_CTRL, ret);
+
+ ret |= DEVCTRL_DEV_OFF_MASK;
+ ret &= ~DEVCTRL_DEV_ON_MASK;
+
+ return pmic_reg_write(dev, TPS65910_REG_DEVICE_CTRL, ret);
+}
+
static int pmic_tps65910_bind(struct udevice *dev)
{
ofnode regulators_node;
int children;
+ int type = dev_get_driver_data(dev);
regulators_node = dev_read_subnode(dev, "regulators");
if (!ofnode_valid(regulators_node)) {
@@ -58,7 +83,19 @@ static int pmic_tps65910_bind(struct udevice *dev)
return -EINVAL;
}
- children = pmic_bind_children(dev, regulators_node, pmic_children_info);
+ switch (type) {
+ case TPS65910:
+ children = pmic_bind_children(dev, regulators_node,
+ tps65910_children_info);
+ break;
+ case TPS65911:
+ children = pmic_bind_children(dev, regulators_node,
+ tps65911_children_info);
+ break;
+ default:
+ log_err("unknown PMIC type\n");
+ }
+
if (!children)
debug("%s has no children (regulators)\n", dev->name);
@@ -67,6 +104,10 @@ static int pmic_tps65910_bind(struct udevice *dev)
static int pmic_tps65910_probe(struct udevice *dev)
{
+ struct uc_pmic_priv *priv = dev_get_uclass_priv(dev);
+
+ priv->sys_pow_ctrl = dev_read_bool(dev, "ti,system-power-controller");
+
/* use I2C control interface instead of I2C smartreflex interface to
* access smartrefelex registers VDD1_OP_REG, VDD1_SR_REG, VDD2_OP_REG
* and VDD2_SR_REG
@@ -76,13 +117,15 @@ static int pmic_tps65910_probe(struct udevice *dev)
}
static struct dm_pmic_ops pmic_tps65910_ops = {
+ .poweroff = pmic_tps65910_poweroff,
.reg_count = pmic_tps65910_reg_count,
.read = pmic_tps65910_read,
.write = pmic_tps65910_write,
};
static const struct udevice_id pmic_tps65910_match[] = {
- { .compatible = "ti,tps65910" },
+ { .compatible = "ti,tps65910", .data = TPS65910 },
+ { .compatible = "ti,tps65911", .data = TPS65911 },
{ /* sentinel */ }
};
diff --git a/include/power/tps65910_pmic.h b/include/power/tps65910_pmic.h
index 66214786d3..282863805a 100644
--- a/include/power/tps65910_pmic.h
+++ b/include/power/tps65910_pmic.h
@@ -6,6 +6,9 @@
#ifndef __TPS65910_PMIC_H_
#define __TPS65910_PMIC_H_
+#define TPS65910 1
+#define TPS65911 2
+
#define TPS65910_I2C_SEL_MASK (0x1 << 4)
#define TPS65910_VDD_SR_MASK (0x1 << 7)
#define TPS65910_GAIN_SEL_MASK (0x3 << 6)
@@ -17,6 +20,11 @@
#define TPS65910_SUPPLY_STATE_OFF 0x0
#define TPS65910_SUPPLY_STATE_ON 0x1
+/* TPS65910 DEVICE_CTRL bits */
+#define DEVCTRL_PWR_OFF_MASK BIT(7)
+#define DEVCTRL_DEV_ON_MASK BIT(2)
+#define DEVCTRL_DEV_OFF_MASK BIT(0)
+
/* i2c registers */
enum {
TPS65910_REG_RTC_SEC = 0x00,
@@ -126,4 +134,48 @@ struct tps65910_regulator_pdata {
#define TPS65910_BOOST_DRIVER "tps65910_boost"
#define TPS65910_LDO_DRIVER "tps65910_ldo"
+/* tps65911 i2c registers */
+enum {
+ TPS65911_REG_VIO = 0x20,
+ TPS65911_REG_VDD1,
+ TPS65911_REG_VDD1_OP,
+ TPS65911_REG_VDD1_SR,
+ TPS65911_REG_VDD2,
+ TPS65911_REG_VDD2_OP,
+ TPS65911_REG_VDD2_SR,
+ TPS65911_REG_VDDCTRL,
+ TPS65911_REG_VDDCTRL_OP,
+ TPS65911_REG_VDDCTRL_SR,
+ TPS65911_REG_LDO1 = 0x30,
+ TPS65911_REG_LDO2,
+ TPS65911_REG_LDO5,
+ TPS65911_REG_LDO8,
+ TPS65911_REG_LDO7,
+ TPS65911_REG_LDO6,
+ TPS65911_REG_LDO4,
+ TPS65911_REG_LDO3,
+};
+
+#define TPS65911_VDD_NUM 4
+#define TPS65911_LDO_NUM 8
+
+#define TPS65911_VDD_VOLT_MAX 1500000
+#define TPS65911_VDD_VOLT_MIN 600000
+#define TPS65911_VDD_VOLT_BASE 562500
+
+#define TPS65911_LDO_VOLT_MAX 3300000
+#define TPS65911_LDO_VOLT_BASE 800000
+
+#define TPS65911_LDO_SEL_MASK (0x3f << 2)
+
+#define TPS65911_LDO124_VOLT_MAX_HEX 0x32
+#define TPS65911_LDO358_VOLT_MAX_HEX 0x19
+#define TPS65911_LDO358_VOLT_MIN_HEX 0x02
+
+#define TPS65911_LDO124_VOLT_STEP 50000
+#define TPS65911_LDO358_VOLT_STEP 100000
+
+#define TPS65911_VDD_DRIVER "tps65911_vdd"
+#define TPS65911_LDO_DRIVER "tps65911_ldo"
+
#endif /* __TPS65910_PMIC_H_ */
--
2.39.2
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