power: pmic/regulator: Add basic support for TPS65910
authorFelix Brack <fb@ltec.ch>
Thu, 30 Nov 2017 12:52:37 +0000 (13:52 +0100)
committerSimon Glass <sjg@chromium.org>
Wed, 13 Dec 2017 02:53:45 +0000 (19:53 -0700)
Texas Instrument's TPS65910 PMIC contains 3 buck DC-DC converts, one
boost DC-DC converter and 8 LDOs. This patch implements driver model
support for the TPS65910 PMIC and its regulators making the get/set
API for regulator value/enable available.
This patch depends on the patch "am33xx: Add a function to query MPU
voltage in uV" to build correctly. For boards relying on the DT
include file tps65910.dtsi the v3 patch "power: extend prefix match
to regulator-name property" and an appropriate regulator naming is
also required.

Signed-off-by: Felix Brack <fb@ltec.ch>
Reviewed-by: Simon Glass <sjg@chromium.org>
drivers/power/pmic/Kconfig
drivers/power/pmic/Makefile
drivers/power/pmic/pmic_tps65910_dm.c [new file with mode: 0644]
drivers/power/regulator/Kconfig
drivers/power/regulator/Makefile
drivers/power/regulator/tps65910_regulator.c [new file with mode: 0644]
include/power/tps65910_pmic.h [new file with mode: 0644]

index e3f9e4dfc0deedf1cc243b5813c97717337fad24..5d49c93f32a2915b897512aeb8308391bdf4946f 100644 (file)
@@ -201,3 +201,11 @@ config POWER_MC34VR500
        The MC34VR500 is used in conjunction with the FSL T1 and LS1 series
        SoC. It provides 4 buck DC-DC convertors and 5 LDOs, and it is accessed
        via an I2C interface.
+
+config DM_PMIC_TPS65910
+       bool "Enable driver for Texas Instruments TPS65910 PMIC"
+       depends on DM_PMIC
+       ---help---
+       The TPS65910 is a PMIC containing 3 buck DC-DC converters, one boost
+       DC-DC converter, 8 LDOs and a RTC. This driver binds the SMPS and LDO
+       pmic children.
index f7bdfa560963db7fb5e737a42d27a1ed5f8d7843..7d6c583d347c51b762cfc819862f7f2d2f8d5611 100644 (file)
@@ -19,6 +19,7 @@ obj-$(CONFIG_PMIC_RK8XX) += rk8xx.o
 obj-$(CONFIG_PMIC_RN5T567) += rn5t567.o
 obj-$(CONFIG_PMIC_TPS65090) += tps65090.o
 obj-$(CONFIG_PMIC_S5M8767) += s5m8767.o
+obj-$(CONFIG_DM_PMIC_TPS65910) += pmic_tps65910_dm.o
 obj-$(CONFIG_$(SPL_)PMIC_PALMAS) += palmas.o
 obj-$(CONFIG_$(SPL_)PMIC_LP873X) += lp873x.o
 obj-$(CONFIG_$(SPL_)PMIC_LP87565) += lp87565.o
diff --git a/drivers/power/pmic/pmic_tps65910_dm.c b/drivers/power/pmic/pmic_tps65910_dm.c
new file mode 100644 (file)
index 0000000..0127ce3
--- /dev/null
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) EETS GmbH, 2017, Felix Brack <f.brack@eets.ch>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <i2c.h>
+#include <power/pmic.h>
+#include <power/regulator.h>
+#include <power/tps65910_pmic.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct pmic_child_info pmic_children_info[] = {
+       { .prefix = "ldo_", .driver = TPS65910_LDO_DRIVER },
+       { .prefix = "buck_", .driver = TPS65910_BUCK_DRIVER },
+       { .prefix = "boost_", .driver = TPS65910_BOOST_DRIVER },
+       { },
+};
+
+static int pmic_tps65910_reg_count(struct udevice *dev)
+{
+       return TPS65910_NUM_REGS;
+}
+
+static int pmic_tps65910_write(struct udevice *dev, uint reg, const u8 *buffer,
+                              int len)
+{
+       int ret;
+
+       ret = dm_i2c_write(dev, reg, buffer, len);
+       if (ret)
+               error("%s write error on register %02x\n", dev->name, reg);
+
+       return ret;
+}
+
+static int pmic_tps65910_read(struct udevice *dev, uint reg, u8 *buffer,
+                             int len)
+{
+       int ret;
+
+       ret = dm_i2c_read(dev, reg, buffer, len);
+       if (ret)
+               error("%s read error on register %02x\n", dev->name, reg);
+
+       return ret;
+}
+
+static int pmic_tps65910_bind(struct udevice *dev)
+{
+       ofnode regulators_node;
+       int children;
+
+       regulators_node = dev_read_subnode(dev, "regulators");
+       if (!ofnode_valid(regulators_node)) {
+               debug("%s regulators subnode not found\n", dev->name);
+               return -EINVAL;
+       }
+
+       children = pmic_bind_children(dev, regulators_node, pmic_children_info);
+       if (!children)
+               debug("%s has no children (regulators)\n", dev->name);
+
+       return 0;
+}
+
+static int pmic_tps65910_probe(struct udevice *dev)
+{
+       /* 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
+        */
+       return pmic_clrsetbits(dev, TPS65910_REG_DEVICE_CTRL, 0,
+                              TPS65910_I2C_SEL_MASK);
+}
+
+static struct dm_pmic_ops pmic_tps65910_ops = {
+       .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" },
+       { /* sentinel */ }
+};
+
+U_BOOT_DRIVER(pmic_tps65910) = {
+       .name = "pmic_tps65910",
+       .id = UCLASS_PMIC,
+       .of_match = pmic_tps65910_match,
+       .bind = pmic_tps65910_bind,
+       .probe = pmic_tps65910_probe,
+       .ops = &pmic_tps65910_ops,
+};
index 8892fa14e0226868d1b1b88aec92d1258fbce76f..26fb9368ea9e1c233189860753990af2f72d0bc9 100644 (file)
@@ -188,3 +188,11 @@ config DM_REGULATOR_LP87565
        LP87565 series of PMICs have 4 single phase BUCKs that can also
        be configured in multi phase modes. The driver implements
        get/set api for value and enable.
+
+config DM_REGULATOR_TPS65910
+       bool "Enable driver for TPS65910 PMIC regulators"
+       depends on DM_PMIC_TPS65910
+       ---help---
+       The TPS65910 PMIC provides 4 SMPSs and 8 LDOs. This driver supports all
+       regulator types of the TPS65910 (BUCK, BOOST and LDO). It implements
+       the get/set api for value and enable.
index 6c149a9263473726578f461a9e4070d793e2c3a4..7a2e76dc8293b8609ac19d8eb15036bca4cb8fe0 100644 (file)
@@ -21,3 +21,4 @@ obj-$(CONFIG_$(SPL_)DM_REGULATOR_PALMAS) += palmas_regulator.o
 obj-$(CONFIG_$(SPL_)DM_REGULATOR_PBIAS) += pbias_regulator.o
 obj-$(CONFIG_$(SPL_)DM_REGULATOR_LP873X) += lp873x_regulator.o
 obj-$(CONFIG_$(SPL_)DM_REGULATOR_LP87565) += lp87565_regulator.o
+obj-$(CONFIG_DM_REGULATOR_TPS65910) += tps65910_regulator.o
diff --git a/drivers/power/regulator/tps65910_regulator.c b/drivers/power/regulator/tps65910_regulator.c
new file mode 100644 (file)
index 0000000..5e2ec8f
--- /dev/null
@@ -0,0 +1,459 @@
+/*
+ * Copyright (C) EETS GmbH, 2017, Felix Brack <f.brack@eets.ch>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <power/pmic.h>
+#include <power/regulator.h>
+#include <power/tps65910_pmic.h>
+
+#define VOUT_CHOICE_COUNT 4
+
+/*
+ * struct regulator_props - Properties of a LDO and VIO SMPS regulator
+ *
+ * All of these regulators allow setting one out of four output voltages.
+ * These output voltages are only achievable when supplying the regulator
+ * with a minimum input voltage.
+ *
+ * @vin_min[]: minimum supply input voltage in uV required to achieve the
+ *             corresponding vout[] voltage
+ * @vout[]:    regulator output voltage in uV
+ * @reg:       I2C register used to set regulator voltage
+ */
+struct regulator_props {
+       int vin_min[VOUT_CHOICE_COUNT];
+       int vout[VOUT_CHOICE_COUNT];
+       int reg;
+};
+
+static const struct regulator_props ldo_props_vdig1 = {
+       .vin_min = { 1700000, 2100000, 2700000, 3200000 },
+       .vout = { 1200000, 1500000, 1800000, 2700000 },
+       .reg = TPS65910_REG_VDIG1
+};
+
+static const struct regulator_props ldo_props_vdig2 = {
+       .vin_min = { 1700000, 1700000, 1700000, 2700000 },
+       .vout = { 1000000, 1100000, 1200000, 1800000 },
+       .reg = TPS65910_REG_VDIG2
+};
+
+static const struct regulator_props ldo_props_vpll = {
+       .vin_min = { 2700000, 2700000, 2700000, 3000000 },
+       .vout = { 1000000, 1100000, 1800000, 2500000 },
+       .reg = TPS65910_REG_VPLL
+};
+
+static const struct regulator_props ldo_props_vdac = {
+       .vin_min = { 2700000, 3000000, 3200000, 3200000 },
+       .vout = { 1800000, 2600000, 2800000, 2850000 },
+       .reg = TPS65910_REG_VDAC
+};
+
+static const struct regulator_props ldo_props_vaux1 = {
+       .vin_min = { 2700000, 3200000, 3200000, 3200000 },
+       .vout = { 1800000, 2500000, 2800000, 2850000 },
+       .reg = TPS65910_REG_VAUX1
+};
+
+static const struct regulator_props ldo_props_vaux2 = {
+       .vin_min = { 2700000, 3200000, 3200000, 3600000 },
+       .vout = { 1800000, 2800000, 2900000, 3300000 },
+       .reg = TPS65910_REG_VAUX2
+};
+
+static const struct regulator_props ldo_props_vaux33 = {
+       .vin_min = { 2700000, 2700000, 3200000, 3600000 },
+       .vout = { 1800000, 2000000, 2800000, 3300000 },
+       .reg = TPS65910_REG_VAUX33
+};
+
+static const struct regulator_props ldo_props_vmmc = {
+       .vin_min = { 2700000, 3200000, 3200000, 3600000 },
+       .vout = { 1800000, 2800000, 3000000, 3300000 },
+       .reg = TPS65910_REG_VMMC
+};
+
+static const struct regulator_props smps_props_vio = {
+       .vin_min = { 3200000, 3200000, 4000000, 4400000 },
+       .vout = { 1500000, 1800000, 2500000, 3300000 },
+       .reg = TPS65910_REG_VIO
+};
+
+/* lookup table of control registers indexed by regulator unit number */
+static const int ctrl_regs[] = {
+       TPS65910_REG_VRTC,
+       TPS65910_REG_VIO,
+       TPS65910_REG_VDD1,
+       TPS65910_REG_VDD2,
+       TPS65910_REG_VDD3,
+       TPS65910_REG_VDIG1,
+       TPS65910_REG_VDIG2,
+       TPS65910_REG_VPLL,
+       TPS65910_REG_VDAC,
+       TPS65910_REG_VAUX1,
+       TPS65910_REG_VAUX2,
+       TPS65910_REG_VAUX33,
+       TPS65910_REG_VMMC
+};
+
+/* supply names as used in DT */
+static const char * const supply_names[] = {
+       "vccio-supply",
+       "vcc1-supply",
+       "vcc2-supply",
+       "vcc3-supply",
+       "vcc4-supply",
+       "vcc5-supply",
+       "vcc6-supply",
+       "vcc7-supply"
+};
+
+/* lookup table of regulator supplies indexed by regulator unit number */
+static const int regulator_supplies[] = {
+       TPS65910_SUPPLY_VCC7,
+       TPS65910_SUPPLY_VCCIO,
+       TPS65910_SUPPLY_VCC1,
+       TPS65910_SUPPLY_VCC2,
+       TPS65910_SUPPLY_VCC7,
+       TPS65910_SUPPLY_VCC6,
+       TPS65910_SUPPLY_VCC6,
+       TPS65910_SUPPLY_VCC5,
+       TPS65910_SUPPLY_VCC5,
+       TPS65910_SUPPLY_VCC4,
+       TPS65910_SUPPLY_VCC4,
+       TPS65910_SUPPLY_VCC3,
+       TPS65910_SUPPLY_VCC3
+};
+
+static int get_ctrl_reg_from_unit_addr(const uint unit_addr)
+{
+       if (unit_addr < ARRAY_SIZE(ctrl_regs))
+               return ctrl_regs[unit_addr];
+       return -ENXIO;
+}
+
+static int tps65910_regulator_get_value(struct udevice *dev,
+                                       const struct regulator_props *rgp)
+{
+       int sel, val, vout;
+       struct tps65910_regulator_pdata *pdata = dev_get_platdata(dev);
+       int vin = pdata->supply;
+
+       val = pmic_reg_read(dev->parent, rgp->reg);
+       if (val < 0)
+               return val;
+       sel = (val & TPS65910_SEL_MASK) >> 2;
+       vout = (vin >= *(rgp->vin_min + sel)) ? *(rgp->vout + sel) : 0;
+       vout = ((val & TPS65910_SUPPLY_STATE_MASK) == 1) ? vout : 0;
+
+       return vout;
+}
+
+static int tps65910_ldo_get_value(struct udevice *dev)
+{
+       struct tps65910_regulator_pdata *pdata = dev_get_platdata(dev);
+       int vin;
+
+       if (!pdata)
+               return 0;
+       vin = pdata->supply;
+
+       switch (pdata->unit) {
+       case TPS65910_UNIT_VRTC:
+               /* VRTC is fixed and can't be turned off */
+               return (vin >= 2500000) ? 1830000 : 0;
+       case TPS65910_UNIT_VDIG1:
+               return tps65910_regulator_get_value(dev, &ldo_props_vdig1);
+       case TPS65910_UNIT_VDIG2:
+               return tps65910_regulator_get_value(dev, &ldo_props_vdig2);
+       case TPS65910_UNIT_VPLL:
+               return tps65910_regulator_get_value(dev, &ldo_props_vpll);
+       case TPS65910_UNIT_VDAC:
+               return tps65910_regulator_get_value(dev, &ldo_props_vdac);
+       case TPS65910_UNIT_VAUX1:
+               return tps65910_regulator_get_value(dev, &ldo_props_vaux1);
+       case TPS65910_UNIT_VAUX2:
+               return tps65910_regulator_get_value(dev, &ldo_props_vaux2);
+       case TPS65910_UNIT_VAUX33:
+               return tps65910_regulator_get_value(dev, &ldo_props_vaux33);
+       case TPS65910_UNIT_VMMC:
+               return tps65910_regulator_get_value(dev, &ldo_props_vmmc);
+       default:
+               return 0;
+       }
+}
+
+static int tps65910_regulator_set_value(struct udevice *dev,
+                                       const struct regulator_props *ldo,
+                                       int uV)
+{
+       int val;
+       int sel = 0;
+       struct tps65910_regulator_pdata *pdata = dev_get_platdata(dev);
+
+       do {
+               /* we only allow exact voltage matches */
+               if (uV == *(ldo->vout + sel))
+                       break;
+       } while (++sel < VOUT_CHOICE_COUNT);
+       if (sel == VOUT_CHOICE_COUNT)
+               return -EINVAL;
+       if (pdata->supply < *(ldo->vin_min + sel))
+               return -EINVAL;
+
+       val = pmic_reg_read(dev->parent, ldo->reg);
+       if (val < 0)
+               return val;
+       val &= ~TPS65910_SEL_MASK;
+       val |= sel << 2;
+       return pmic_reg_write(dev->parent, ldo->reg, val);
+}
+
+static int tps65910_ldo_set_value(struct udevice *dev, int uV)
+{
+       struct tps65910_regulator_pdata *pdata = dev_get_platdata(dev);
+       int vin = pdata->supply;
+
+       switch (pdata->unit) {
+       case TPS65910_UNIT_VRTC:
+               /* VRTC is fixed to 1.83V and can't be turned off */
+               if (vin < 2500000)
+                       return -EINVAL;
+               return 0;
+       case TPS65910_UNIT_VDIG1:
+               return tps65910_regulator_set_value(dev, &ldo_props_vdig1, uV);
+       case TPS65910_UNIT_VDIG2:
+               return tps65910_regulator_set_value(dev, &ldo_props_vdig2, uV);
+       case TPS65910_UNIT_VPLL:
+               return tps65910_regulator_set_value(dev, &ldo_props_vpll, uV);
+       case TPS65910_UNIT_VDAC:
+               return tps65910_regulator_set_value(dev, &ldo_props_vdac, uV);
+       case TPS65910_UNIT_VAUX1:
+               return tps65910_regulator_set_value(dev, &ldo_props_vaux1, uV);
+       case TPS65910_UNIT_VAUX2:
+               return tps65910_regulator_set_value(dev, &ldo_props_vaux2, uV);
+       case TPS65910_UNIT_VAUX33:
+               return tps65910_regulator_set_value(dev, &ldo_props_vaux33, uV);
+       case TPS65910_UNIT_VMMC:
+               return tps65910_regulator_set_value(dev, &ldo_props_vmmc, uV);
+       default:
+               return 0;
+       }
+}
+
+static int tps65910_get_enable(struct udevice *dev)
+{
+       int reg, val;
+       struct tps65910_regulator_pdata *pdata = dev_get_platdata(dev);
+
+       reg = get_ctrl_reg_from_unit_addr(pdata->unit);
+       if (reg < 0)
+               return reg;
+
+       val = pmic_reg_read(dev->parent, reg);
+       if (val < 0)
+               return val;
+
+       /* bits 1:0 of regulator control register define state */
+       return ((val & TPS65910_SUPPLY_STATE_MASK) == 1);
+}
+
+static int tps65910_set_enable(struct udevice *dev, bool enable)
+{
+       int reg;
+       uint clr, set;
+       struct tps65910_regulator_pdata *pdata = dev_get_platdata(dev);
+
+       reg = get_ctrl_reg_from_unit_addr(pdata->unit);
+       if (reg < 0)
+               return reg;
+
+       if (enable) {
+               clr = TPS65910_SUPPLY_STATE_MASK & ~TPS65910_SUPPLY_STATE_ON;
+               set = TPS65910_SUPPLY_STATE_MASK & TPS65910_SUPPLY_STATE_ON;
+       } else {
+               clr = TPS65910_SUPPLY_STATE_MASK & ~TPS65910_SUPPLY_STATE_OFF;
+               set = TPS65910_SUPPLY_STATE_MASK & TPS65910_SUPPLY_STATE_OFF;
+       }
+       return pmic_clrsetbits(dev->parent, reg, clr, set);
+}
+
+static int buck_get_vdd1_vdd2_value(struct udevice *dev, int reg_vdd)
+{
+       int gain;
+       int val = pmic_reg_read(dev, reg_vdd);
+
+       if (val < 0)
+               return val;
+       gain = (val & TPS65910_GAIN_SEL_MASK) >> 6;
+       gain = (gain == 0) ? 1 : gain;
+       val = pmic_reg_read(dev, reg_vdd + 1);
+       if (val < 0)
+               return val;
+       if (val & TPS65910_VDD_SR_MASK)
+               /* use smart reflex value instead */
+               val = pmic_reg_read(dev, reg_vdd + 2);
+       if (val < 0)
+               return val;
+       return (562500 + (val & TPS65910_VDD_SEL_MASK) * 12500) * gain;
+}
+
+static int tps65910_buck_get_value(struct udevice *dev)
+{
+       struct tps65910_regulator_pdata *pdata = dev_get_platdata(dev);
+
+       switch (pdata->unit) {
+       case TPS65910_UNIT_VIO:
+               return tps65910_regulator_get_value(dev, &smps_props_vio);
+       case TPS65910_UNIT_VDD1:
+               return buck_get_vdd1_vdd2_value(dev->parent, TPS65910_REG_VDD1);
+       case TPS65910_UNIT_VDD2:
+               return buck_get_vdd1_vdd2_value(dev->parent, TPS65910_REG_VDD2);
+       default:
+               return 0;
+       }
+}
+
+static int buck_set_vdd1_vdd2_value(struct udevice *dev, int uV)
+{
+       int ret, reg_vdd, gain;
+       int val;
+       struct dm_regulator_uclass_platdata *uc_pdata;
+       struct tps65910_regulator_pdata *pdata = dev_get_platdata(dev);
+
+       switch (pdata->unit) {
+       case TPS65910_UNIT_VDD1:
+               reg_vdd = TPS65910_REG_VDD1;
+               break;
+       case TPS65910_UNIT_VDD2:
+               reg_vdd = TPS65910_REG_VDD2;
+               break;
+       default:
+               return -EINVAL;
+       }
+       uc_pdata = dev_get_uclass_platdata(dev);
+
+       /* check setpoint is within limits */
+       if (uV < uc_pdata->min_uV) {
+               error("voltage %duV for %s too low\n", uV, dev->name);
+               return -EINVAL;
+       }
+       if (uV > uc_pdata->max_uV) {
+               error("voltage %duV for %s too high\n", uV, dev->name);
+               return -EINVAL;
+       }
+
+       val = pmic_reg_read(dev->parent, reg_vdd);
+       if (val < 0)
+               return val;
+       gain = (val & TPS65910_GAIN_SEL_MASK) >> 6;
+       gain = (gain == 0) ? 1 : gain;
+       val = ((uV / gain) - 562500) / 12500;
+       if (val < TPS65910_VDD_SEL_MIN || val > TPS65910_VDD_SEL_MAX)
+               /*
+                * Neither do we change the gain, nor do we allow shutdown or
+                * any approximate value (for now)
+                */
+               return -EPERM;
+       val &= TPS65910_VDD_SEL_MASK;
+       ret = pmic_reg_write(dev->parent, reg_vdd + 1, val);
+       if (ret)
+               return ret;
+       return 0;
+}
+
+static int tps65910_buck_set_value(struct udevice *dev, int uV)
+{
+       struct tps65910_regulator_pdata *pdata = dev_get_platdata(dev);
+
+       if (pdata->unit == TPS65910_UNIT_VIO)
+               return tps65910_regulator_set_value(dev, &smps_props_vio, uV);
+
+       return buck_set_vdd1_vdd2_value(dev, uV);
+}
+
+static int tps65910_boost_get_value(struct udevice *dev)
+{
+       int vout;
+       struct tps65910_regulator_pdata *pdata = dev_get_platdata(dev);
+
+       vout = (pdata->supply >= 3000000) ? 5000000 : 0;
+       return vout;
+}
+
+static int tps65910_regulator_ofdata_to_platdata(struct udevice *dev)
+{
+       struct udevice *supply;
+       int ret;
+       const char *supply_name;
+       struct tps65910_regulator_pdata *pdata = dev_get_platdata(dev);
+
+       pdata->unit = dev_get_driver_data(dev);
+       if (pdata->unit > TPS65910_UNIT_VMMC)
+               return -EINVAL;
+       supply_name = supply_names[regulator_supplies[pdata->unit]];
+
+       debug("Looking up supply power %s\n", supply_name);
+       ret = device_get_supply_regulator(dev->parent, supply_name, &supply);
+       if (ret) {
+               debug("  missing supply power %s\n", supply_name);
+               return ret;
+       }
+       pdata->supply = regulator_get_value(supply);
+       if (pdata->supply < 0) {
+               debug("  invalid supply voltage for regulator %s\n",
+                     supply->name);
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
+static const struct dm_regulator_ops tps65910_boost_ops = {
+       .get_value  = tps65910_boost_get_value,
+       .get_enable = tps65910_get_enable,
+       .set_enable = tps65910_set_enable,
+};
+
+U_BOOT_DRIVER(tps65910_boost) = {
+       .name = TPS65910_BOOST_DRIVER,
+       .id = UCLASS_REGULATOR,
+       .ops = &tps65910_boost_ops,
+       .platdata_auto_alloc_size = sizeof(struct tps65910_regulator_pdata),
+       .ofdata_to_platdata = tps65910_regulator_ofdata_to_platdata,
+};
+
+static const struct dm_regulator_ops tps65910_buck_ops = {
+       .get_value  = tps65910_buck_get_value,
+       .set_value  = tps65910_buck_set_value,
+       .get_enable = tps65910_get_enable,
+       .set_enable = tps65910_set_enable,
+};
+
+U_BOOT_DRIVER(tps65910_buck) = {
+       .name = TPS65910_BUCK_DRIVER,
+       .id = UCLASS_REGULATOR,
+       .ops = &tps65910_buck_ops,
+       .platdata_auto_alloc_size = sizeof(struct tps65910_regulator_pdata),
+       .ofdata_to_platdata = tps65910_regulator_ofdata_to_platdata,
+};
+
+static const struct dm_regulator_ops tps65910_ldo_ops = {
+       .get_value  = tps65910_ldo_get_value,
+       .set_value  = tps65910_ldo_set_value,
+       .get_enable = tps65910_get_enable,
+       .set_enable = tps65910_set_enable,
+};
+
+U_BOOT_DRIVER(tps65910_ldo) = {
+       .name = TPS65910_LDO_DRIVER,
+       .id = UCLASS_REGULATOR,
+       .ops = &tps65910_ldo_ops,
+       .platdata_auto_alloc_size = sizeof(struct tps65910_regulator_pdata),
+       .ofdata_to_platdata = tps65910_regulator_ofdata_to_platdata,
+};
diff --git a/include/power/tps65910_pmic.h b/include/power/tps65910_pmic.h
new file mode 100644 (file)
index 0000000..e8d9ffa
--- /dev/null
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) EETS GmbH, 2017, Felix Brack <f.brack@eets.ch>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef __TPS65910_PMIC_H_
+#define __TPS65910_PMIC_H_
+
+#define TPS65910_I2C_SEL_MASK          (0x1 << 4)
+#define TPS65910_VDD_SR_MASK           (0x1 << 7)
+#define TPS65910_GAIN_SEL_MASK         (0x3 << 6)
+#define TPS65910_VDD_SEL_MASK          0x7f
+#define TPS65910_VDD_SEL_MIN           3
+#define TPS65910_VDD_SEL_MAX           75
+#define TPS65910_SEL_MASK              (0x3 << 2)
+#define TPS65910_SUPPLY_STATE_MASK     0x3
+#define TPS65910_SUPPLY_STATE_OFF      0x0
+#define TPS65910_SUPPLY_STATE_ON       0x1
+
+/* i2c registers */
+enum {
+       TPS65910_REG_RTC_SEC                    = 0x00,
+       TPS65910_REG_RTC_MIN,
+       TPS65910_REG_RTC_HOUR,
+       TPS65910_REG_RTC_DAY,
+       TPS65910_REG_RTC_MONTH,
+       TPS65910_REG_RTC_YEAR,
+       TPS65910_REG_RTC_WEEK,
+       TPS65910_REG_RTC_ALARM_SEC              = 0x08,
+       TPS65910_REG_RTC_ALARM_MIN,
+       TPS65910_REG_RTC_ALARM_HOUR,
+       TPS65910_REG_RTC_ALARM_DAY,
+       TPS65910_REG_RTC_ALARM_MONTH,
+       TPS65910_REG_RTC_ALARM_YEAR,
+       TPS65910_REG_RTC_CTRL                   = 0x10,
+       TPS65910_REG_RTC_STAT,
+       TPS65910_REG_RTC_INT,
+       TPS65910_REG_RTC_COMP_LSB,
+       TPS65910_REG_RTC_COMP_MSB,
+       TPS65910_REG_RTC_RESISTOR_PRG,
+       TPS65910_REG_RTC_RESET_STAT,
+       TPS65910_REG_BACKUP1,
+       TPS65910_REG_BACKUP2,
+       TPS65910_REG_BACKUP3,
+       TPS65910_REG_BACKUP4,
+       TPS65910_REG_BACKUP5,
+       TPS65910_REG_PUADEN,
+       TPS65910_REG_REF,
+       TPS65910_REG_VRTC,
+       TPS65910_REG_VIO                        = 0x20,
+       TPS65910_REG_VDD1,
+       TPS65910_REG_VDD1_VAL,
+       TPS65910_REG_VDD1_VAL_SR,
+       TPS65910_REG_VDD2,
+       TPS65910_REG_VDD2_VAL,
+       TPS65910_REG_VDD2_VAL_SR,
+       TPS65910_REG_VDD3,
+       TPS65910_REG_VDIG1                      = 0x30,
+       TPS65910_REG_VDIG2,
+       TPS65910_REG_VAUX1,
+       TPS65910_REG_VAUX2,
+       TPS65910_REG_VAUX33,
+       TPS65910_REG_VMMC,
+       TPS65910_REG_VPLL,
+       TPS65910_REG_VDAC,
+       TPS65910_REG_THERM,
+       TPS65910_REG_BATTERY_BACKUP_CHARGE,
+       TPS65910_REG_DCDC_CTRL                  = 0x3e,
+       TPS65910_REG_DEVICE_CTRL,
+       TPS65910_REG_DEVICE_CTRL2,
+       TPS65910_REG_SLEEP_KEEP_LDO_ON,
+       TPS65910_REG_SLEEP_KEEP_RES_ON,
+       TPS65910_REG_SLEEP_SET_LDO_OFF,
+       TPS65910_REG_SLEEP_SET_RES_OFF,
+       TPS65910_REG_EN1_LDO_ASS,
+       TPS65910_REG_EM1_SMPS_ASS,
+       TPS65910_REG_EN2_LDO_ASS,
+       TPS65910_REG_EM2_SMPS_ASS,
+       TPS65910_REG_INT_STAT                   = 0x50,
+       TPS65910_REG_INT_MASK,
+       TPS65910_REG_INT_STAT2,
+       TPS65910_REG_INT_MASK2,
+       TPS65910_REG_GPIO                       = 0x60,
+       TPS65910_REG_JTAGREVNUM                 = 0x80,
+       TPS65910_NUM_REGS
+};
+
+/* chip supplies */
+enum {
+       TPS65910_SUPPLY_VCCIO   = 0x00,
+       TPS65910_SUPPLY_VCC1,
+       TPS65910_SUPPLY_VCC2,
+       TPS65910_SUPPLY_VCC3,
+       TPS65910_SUPPLY_VCC4,
+       TPS65910_SUPPLY_VCC5,
+       TPS65910_SUPPLY_VCC6,
+       TPS65910_SUPPLY_VCC7,
+       TPS65910_NUM_SUPPLIES
+};
+
+/* regulator unit numbers */
+enum {
+       TPS65910_UNIT_VRTC = 0x00,
+       TPS65910_UNIT_VIO,
+       TPS65910_UNIT_VDD1,
+       TPS65910_UNIT_VDD2,
+       TPS65910_UNIT_VDD3,
+       TPS65910_UNIT_VDIG1,
+       TPS65910_UNIT_VDIG2,
+       TPS65910_UNIT_VPLL,
+       TPS65910_UNIT_VDAC,
+       TPS65910_UNIT_VAUX1,
+       TPS65910_UNIT_VAUX2,
+       TPS65910_UNIT_VAUX33,
+       TPS65910_UNIT_VMMC,
+};
+
+/* platform data */
+struct tps65910_regulator_pdata {
+       u32 supply;     /* regulator supply voltage in uV */
+       uint unit;      /* unit-address according to DT */
+};
+
+/* driver names */
+#define TPS65910_BUCK_DRIVER   "tps65910_buck"
+#define TPS65910_BOOST_DRIVER  "tps65910_boost"
+#define TPS65910_LDO_DRIVER    "tps65910_ldo"
+
+#endif /* __TPS65910_PMIC_H_ */