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power: pmic: tps65910: add TPS65911 PMIC support
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@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Svyatoslav Ryhel
Tom Rini
parent
a70a75aa6c
commit
8e5c9c5aff
3 changed files with 134 additions and 3 deletions
78
doc/device-tree-bindings/pmic/tps65911.txt
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78
doc/device-tree-bindings/pmic/tps65911.txt
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@ -0,0 +1,78 @@
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Texas Instruments, TPS65911 PMIC
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This device uses two drivers:
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- drivers/power/pmic/tps65910.c (for parent device)
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- drivers/power/regulator/tps65911_regulator.c (for child regulators)
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This chapter describes the binding info for the PMIC driver and regulators.
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Required properties for PMIC:
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- compatible: "ti,tps65911"
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- reg: 0x2d
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With those two properties, the pmic device can be used for read/write only.
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To bind each regulator, the optional regulators subnode should exists.
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Optional subnode:
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- name: regulators (subnode list of each device's regulator)
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Regulators subnode contains set on supported regulators.
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Required properties:
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- regulator-name: used for regulator uclass platform data '.name',
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List of supported regulator nodes names for tps65911:
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- vdd1, vdd2, vddctrl, vddio
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- ldo1, ldo2, ldo3, ldo4, ldo5, ldo6, ldo7, ldo8
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vddio in datasheet is referred as vio, but for reduction of code and
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unification of smps regulators it is named vddio.
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Optional:
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- regulator-min-microvolt: minimum allowed Voltage to set
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- regulator-max-microvolt: minimum allowed Voltage to set
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- regulator-always-on: regulator should be never disabled
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- regulator-boot-on: regulator should be enabled by the bootloader
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Example:
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tps65911@2d {
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compatible = "ti,tps65911";
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reg = <0x2d>;
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regulators {
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vdd1 {
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regulator-name = "vdd_1v2_backlight";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1200000>;
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regulator-always-on;
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regulator-boot-on;
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};
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...
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vddio {
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regulator-name = "vdd_1v8_gen";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-always-on;
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regulator-boot-on;
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};
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ldo1 {
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regulator-name = "vdd_emmc_core";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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regulator-boot-on;
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};
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...
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ldo8 {
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regulator-name = "vdd_ddr_hs";
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regulator-min-microvolt = <1000000>;
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regulator-max-microvolt = <1000000>;
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};
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};
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};
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@ -12,13 +12,19 @@
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#include <power/regulator.h>
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#include <power/tps65910_pmic.h>
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static const struct pmic_child_info pmic_children_info[] = {
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static const struct pmic_child_info tps65910_children_info[] = {
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{ .prefix = "ldo_", .driver = TPS65910_LDO_DRIVER },
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{ .prefix = "buck_", .driver = TPS65910_BUCK_DRIVER },
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{ .prefix = "boost_", .driver = TPS65910_BOOST_DRIVER },
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{ },
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};
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static const struct pmic_child_info tps65911_children_info[] = {
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{ .prefix = "ldo", .driver = TPS65911_LDO_DRIVER },
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{ .prefix = "vdd", .driver = TPS65911_VDD_DRIVER },
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{ },
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};
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static int pmic_tps65910_reg_count(struct udevice *dev)
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{
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return TPS65910_NUM_REGS;
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@ -50,6 +56,8 @@ static int pmic_tps65910_read(struct udevice *dev, uint reg, u8 *buffer,
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static int pmic_tps65910_bind(struct udevice *dev)
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{
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const struct pmic_child_info *tps6591x_children_info =
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(struct pmic_child_info *)dev_get_driver_data(dev);
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ofnode regulators_node;
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int children;
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@ -59,7 +67,7 @@ static int pmic_tps65910_bind(struct udevice *dev)
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return -EINVAL;
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}
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children = pmic_bind_children(dev, regulators_node, pmic_children_info);
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children = pmic_bind_children(dev, regulators_node, tps6591x_children_info);
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if (!children)
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debug("%s has no children (regulators)\n", dev->name);
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@ -83,7 +91,8 @@ static struct dm_pmic_ops pmic_tps65910_ops = {
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};
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static const struct udevice_id pmic_tps65910_match[] = {
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{ .compatible = "ti,tps65910" },
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{ .compatible = "ti,tps65910", .data = (ulong)&tps65910_children_info },
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{ .compatible = "ti,tps65911", .data = (ulong)&tps65911_children_info },
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{ /* sentinel */ }
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};
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@ -126,4 +126,48 @@ struct tps65910_regulator_pdata {
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#define TPS65910_BOOST_DRIVER "tps65910_boost"
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#define TPS65910_LDO_DRIVER "tps65910_ldo"
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/* tps65911 i2c registers */
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enum {
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TPS65911_REG_VIO = 0x20,
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TPS65911_REG_VDD1,
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TPS65911_REG_VDD1_OP,
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TPS65911_REG_VDD1_SR,
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TPS65911_REG_VDD2,
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TPS65911_REG_VDD2_OP,
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TPS65911_REG_VDD2_SR,
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TPS65911_REG_VDDCTRL,
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TPS65911_REG_VDDCTRL_OP,
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TPS65911_REG_VDDCTRL_SR,
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TPS65911_REG_LDO1 = 0x30,
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TPS65911_REG_LDO2,
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TPS65911_REG_LDO5,
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TPS65911_REG_LDO8,
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TPS65911_REG_LDO7,
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TPS65911_REG_LDO6,
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TPS65911_REG_LDO4,
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TPS65911_REG_LDO3,
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};
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#define TPS65911_VDD_NUM 4
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#define TPS65911_LDO_NUM 8
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#define TPS65911_VDD_VOLT_MAX 1500000
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#define TPS65911_VDD_VOLT_MIN 600000
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#define TPS65911_VDD_VOLT_BASE 562500
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#define TPS65911_LDO_VOLT_MAX 3300000
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#define TPS65911_LDO_VOLT_BASE 800000
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#define TPS65911_LDO_SEL_MASK (0x3f << 2)
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#define TPS65911_LDO124_VOLT_MAX_HEX 0x32
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#define TPS65911_LDO358_VOLT_MAX_HEX 0x19
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#define TPS65911_LDO358_VOLT_MIN_HEX 0x02
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#define TPS65911_LDO124_VOLT_STEP 50000
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#define TPS65911_LDO358_VOLT_STEP 100000
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#define TPS65911_VDD_DRIVER "tps65911_vdd"
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#define TPS65911_LDO_DRIVER "tps65911_ldo"
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#endif /* __TPS65910_PMIC_H_ */
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