[U-Boot] [PATCH] power: pmic/regulator: Add basic support for TPS65910
Simon Glass
sjg at chromium.org
Mon Nov 20 15:38:56 UTC 2017
Hi Felix,
On 8 November 2017 at 04:04, Felix Brack <fb at ltec.ch> wrote:
> 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 v2 patch "power: extend prefix match
> to regulator-name property" and an appropriate regulator naming is
> also required.
>
> Signed-off-by: Felix Brack <fb at ltec.ch>
> ---
>
> drivers/power/pmic/Kconfig | 8 +
> drivers/power/pmic/Makefile | 1 +
> drivers/power/pmic/pmic_tps65910_dm.c | 138 ++++++++
> drivers/power/regulator/Kconfig | 7 +
> drivers/power/regulator/Makefile | 1 +
> drivers/power/regulator/tps65910_regulator.c | 493 +++++++++++++++++++++++++++
> include/power/tps65910_pmic.h | 130 +++++++
> 7 files changed, 778 insertions(+)
> create mode 100644 drivers/power/pmic/pmic_tps65910_dm.c
> create mode 100644 drivers/power/regulator/tps65910_regulator.c
> create mode 100644 include/power/tps65910_pmic.h
>
> diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig
> index e3f9e4d..5d49c93 100644
> --- a/drivers/power/pmic/Kconfig
> +++ b/drivers/power/pmic/Kconfig
> @@ -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.
Great!
> diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile
> index f7bdfa5..7d6c583 100644
> --- a/drivers/power/pmic/Makefile
> +++ b/drivers/power/pmic/Makefile
> @@ -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
> index 0000000..1410657
> --- /dev/null
> +++ b/drivers/power/pmic/pmic_tps65910_dm.c
> @@ -0,0 +1,138 @@
> +/*
> + * Copyright (C) EETS GmbH, 2017, Felix Brack <f.brack at 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 const char * const supply_names[] = {
> + "vccio-supply",
> + "vcc1-supply",
> + "vcc2-supply",
> + "vcc3-supply",
> + "vcc4-supply",
> + "vcc5-supply",
> + "vcc6-supply",
> + "vcc7-supply",
> +};
> +
> +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)
> +{
> + if (dm_i2c_write(dev, reg, buffer, len)) {
> + error("%s write error on register %02x\n", dev->name, reg);
> + return -EIO;
Can you return ret here instead (and in cases below)? I does not seem
necessary to obscure the original error.
[...]
> diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig
> index c82a936..2d6a150 100644
> --- a/drivers/power/regulator/Kconfig
> +++ b/drivers/power/regulator/Kconfig
> @@ -168,3 +168,10 @@ 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 implements
> + the get/set api for value and enable for these regulators.
I think that last sentence should be split into two.
> diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile
> index 18fb870..3eef297 100644
> --- a/drivers/power/regulator/Makefile
> +++ b/drivers/power/regulator/Makefile
> @@ -20,3 +20,4 @@ obj-$(CONFIG_REGULATOR_TPS65090) += tps65090_regulator.o
> obj-$(CONFIG_$(SPL_)DM_REGULATOR_PALMAS) += palmas_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
> index 0000000..d212b70
> --- /dev/null
> +++ b/drivers/power/regulator/tps65910_regulator.c
> @@ -0,0 +1,493 @@
> +/*
> + * Copyright (C) EETS GmbH, 2017, Felix Brack <f.brack at 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
> +};
> +
> +static int get_ctrl_reg_from_unit_addr(const int unit_addr)
> +{
> + switch (unit_addr) {
> + case TPS65910_UNIT_VRTC:
> + return TPS65910_REG_VRTC;
> + case TPS65910_UNIT_VIO:
> + return TPS65910_REG_VIO;
> + case TPS65910_UNIT_VDD1:
> + return TPS65910_REG_VDD1;
> + case TPS65910_UNIT_VDD2:
> + return TPS65910_REG_VDD2;
> + case TPS65910_UNIT_VDD3:
> + return TPS65910_REG_VDD3;
> + case TPS65910_UNIT_VDIG1:
> + return TPS65910_REG_VDIG1;
> + case TPS65910_UNIT_VDIG2:
> + return TPS65910_REG_VDIG2;
> + case TPS65910_UNIT_VPLL:
> + return TPS65910_REG_VPLL;
> + case TPS65910_UNIT_VDAC:
> + return TPS65910_REG_VDAC;
> + case TPS65910_UNIT_VAUX1:
> + return TPS65910_REG_VAUX1;
> + case TPS65910_UNIT_VAUX2:
> + return TPS65910_REG_VAUX2;
> + case TPS65910_UNIT_VAUX33:
> + return TPS65910_REG_VAUX33;
> + case TPS65910_UNIT_VMMC:
> + return TPS65910_REG_VMMC;
I'm guess this cannot be done with an array lookup?
> + }
> +
> + return -ENXIO;
> +}
> +
> +static int simple_regulator_get_value(struct udevice *dev,
> + const struct regulator_props *rgp)
Can you rename this to have the same prefix as the rest of your
driver? Otherwise people might think it is a generic function.
> +{
> + int sel;
> + u8 val;
> + int vout = 0;
> + struct tps65910_regulator_pdata *pdata = dev->platdata;
> + 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->platdata;
> + int vin = pdata->supply;
> +
> + switch (dev->driver_data) {
> + case TPS65910_UNIT_VRTC:
> + /* VRTC is fixed and can't be turned off */
> + return (vin >= 2500000) ? 1830000 : 0;
> + case TPS65910_UNIT_VDIG1:
> + return simple_regulator_get_value(dev, &ldo_props_vdig1);
> + case TPS65910_UNIT_VDIG2:
> + return simple_regulator_get_value(dev, &ldo_props_vdig2);
> + case TPS65910_UNIT_VPLL:
> + return simple_regulator_get_value(dev, &ldo_props_vpll);
> + case TPS65910_UNIT_VDAC:
> + return simple_regulator_get_value(dev, &ldo_props_vdac);
> + case TPS65910_UNIT_VAUX1:
> + return simple_regulator_get_value(dev, &ldo_props_vaux1);
> + case TPS65910_UNIT_VAUX2:
> + return simple_regulator_get_value(dev, &ldo_props_vaux2);
> + case TPS65910_UNIT_VAUX33:
> + return simple_regulator_get_value(dev, &ldo_props_vaux33);
> + case TPS65910_UNIT_VMMC:
> + return simple_regulator_get_value(dev, &ldo_props_vmmc);
> + }
> +
> + return 0;
> +}
> +
> +static int simple_regulator_set_value(struct udevice *dev,
> + const struct regulator_props *ldo,
> + int uV)
> +{
> + u8 val;
> + int sel = 0;
> + struct tps65910_regulator_pdata *pdata = dev->platdata;
> +
> + 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->platdata;
> + int vin = pdata->supply;
> +
> + switch (dev->driver_data) {
> + 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 simple_regulator_set_value(dev, &ldo_props_vdig1, uV);
> + case TPS65910_UNIT_VDIG2:
> + return simple_regulator_set_value(dev, &ldo_props_vdig2, uV);
> + case TPS65910_UNIT_VPLL:
> + return simple_regulator_set_value(dev, &ldo_props_vpll, uV);
> + case TPS65910_UNIT_VDAC:
> + return simple_regulator_set_value(dev, &ldo_props_vdac, uV);
> + case TPS65910_UNIT_VAUX1:
> + return simple_regulator_set_value(dev, &ldo_props_vaux1, uV);
> + case TPS65910_UNIT_VAUX2:
> + return simple_regulator_set_value(dev, &ldo_props_vaux2, uV);
> + case TPS65910_UNIT_VAUX33:
> + return simple_regulator_set_value(dev, &ldo_props_vaux33, uV);
> + case TPS65910_UNIT_VMMC:
> + return simple_regulator_set_value(dev, &ldo_props_vmmc, uV);
> + }
> +
> + return 0;
> +}
> +
> +static int tps65910_get_enable(struct udevice *dev)
> +{
> + int reg, ret;
> + u8 val;
> +
> + reg = get_ctrl_reg_from_unit_addr(dev->driver_data);
> + if (reg < 0)
> + return reg;
> +
> + ret = pmic_read(dev->parent, reg, &val, 1);
> + if (ret)
> + return ret;
> +
> + /* bits 2:0 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;
> +
> + reg = get_ctrl_reg_from_unit_addr(dev->driver_data);
> + if (reg < 0)
> + return reg;
> +
> + if (enable) {
> + clr = 0x02;
> + set = 0x01;
> + } else {
> + clr = 0x03;
> + set = 0x00;
Do you not have defines / enums for these values?
> + }
> + return pmic_clrsetbits(dev->parent, reg, clr, set);
> +}
> +
> +static int tps65910_ldo_probe(struct udevice *dev)
> +{
> + int ret = 0;
> + int unit = dev->driver_data;
> + struct tps65910_pdata *pmic_pdata = dev->parent->platdata;
> + struct tps65910_regulator_pdata *pdata = dev->platdata;
> +
> + switch (unit) {
> + case TPS65910_UNIT_VRTC:
> + pdata->supply = *(pmic_pdata->supply + TPS65910_SUPPLY_VCC7);
> + break;
> + case TPS65910_UNIT_VDIG1:
> + case TPS65910_UNIT_VDIG2:
> + pdata->supply = *(pmic_pdata->supply + TPS65910_SUPPLY_VCC6);
> + break;
> + case TPS65910_UNIT_VPLL:
> + case TPS65910_UNIT_VDAC:
> + pdata->supply = *(pmic_pdata->supply + TPS65910_SUPPLY_VCC5);
> + break;
> + case TPS65910_UNIT_VAUX1:
> + case TPS65910_UNIT_VAUX2:
> + pdata->supply = *(pmic_pdata->supply + TPS65910_SUPPLY_VCC4);
> + break;
> + case TPS65910_UNIT_VAUX33:
> + case TPS65910_UNIT_VMMC:
> + pdata->supply = *(pmic_pdata->supply + TPS65910_SUPPLY_VCC3);
> + break;
> + default:
> + ret = -ENXIO;
> + }
> +
> + return ret;
> +}
> +
> +static int buck_get_vdd1_vdd2_value(struct udevice *dev, int reg_vdd)
> +{
> + int gain;
> + u8 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)
> +{
> + int vout = 0;
> +
> + switch (dev->driver_data) {
> + case TPS65910_UNIT_VIO:
> + vout = simple_regulator_get_value(dev, &smps_props_vio);
> + break;
> + case TPS65910_UNIT_VDD1:
> + vout = buck_get_vdd1_vdd2_value(dev->parent, TPS65910_REG_VDD1);
> + break;
> + case TPS65910_UNIT_VDD2:
> + vout = buck_get_vdd1_vdd2_value(dev->parent, TPS65910_REG_VDD2);
> + break;
> + }
> +
> + return vout;
> +}
> +
> +static int buck_set_vdd1_vdd2_value(struct udevice *dev, int uV)
> +{
> + int ret, reg_vdd, gain;
> + u32 limit;
> + int val;
> +
> + switch (dev->driver_data) {
> + case TPS65910_UNIT_VDD1:
> + reg_vdd = TPS65910_REG_VDD1;
> + break;
> + case TPS65910_UNIT_VDD2:
> + reg_vdd = TPS65910_REG_VDD2;
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + /* check setpoint is within limits */
> + ret = ofnode_read_u32(dev->node, "regulator-min-microvolt", &limit);
This should be read at the start and stored somewhere. In general you
should not be checking the device outside of ofdata_to_platdata() /
probe().
> + if (ret) {
> + /* too dangerous without limit */
> + error("missing regulator-min-microvolt property for %s\n",
> + dev->name);
> + return ret;
> + }
> + if (uV < limit) {
> + error("voltage %duV for %s too low\n",
> + limit, dev->name);
> + return -EINVAL;
> + }
> + ret = ofnode_read_u32(dev->node, "regulator-max-microvolt", &limit);
> + if (ret) {
> + /* too dangerous without limit */
> + error("missing regulator-max-microvolt property for %s\n",
> + dev->name);
> + return ret;
> + }
> + if (uV > limit) {
> + error("voltage %duV for %s too high\n",
> + limit, 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 < 3) || (val > 75))
You don't need all the brackets on this line.
> + /* neither do we change the gain, nor do we allow shutdown or
/*
* Neither do we...
* ...
*/
> + * 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)
> +{
> + if (dev->driver_data == TPS65910_UNIT_VIO)
> + return simple_regulator_set_value(dev, &smps_props_vio, uV);
> +
> + return buck_set_vdd1_vdd2_value(dev, uV);
> +}
> +
> +static int tps65910_buck_probe(struct udevice *dev)
> +{
> + int ret = 0;
> + int unit = dev->driver_data;
> + struct tps65910_pdata *pmic_pdata = dev->parent->platdata;
> + struct tps65910_regulator_pdata *pdata = dev->platdata;
> +
> + switch (unit) {
> + case TPS65910_UNIT_VIO:
> + pdata->supply = *(pmic_pdata->supply + TPS65910_SUPPLY_VCCIO);
> + break;
> + case TPS65910_UNIT_VDD1:
> + pdata->supply = *(pmic_pdata->supply + TPS65910_SUPPLY_VCC1);
> + break;
> + case TPS65910_UNIT_VDD2:
> + pdata->supply = *(pmic_pdata->supply + TPS65910_SUPPLY_VCC2);
> + break;
> + default:
> + ret = -ENXIO;
> + }
> + return ret;
> +}
> +
> +static int tps65910_boost_get_value(struct udevice *dev)
> +{
> + int vout;
> + struct tps65910_regulator_pdata *pdata = dev->platdata;
> +
> + vout = (pdata->supply >= 3000000) ? 5000000 : 0;
> + return vout;
> +}
> +
> +static int tps65910_boost_probe(struct udevice *dev)
> +{
> + int unit = dev->driver_data;
> + struct tps65910_pdata *pmic_pdata = dev->parent->platdata;
> + struct tps65910_regulator_pdata *pdata = dev->platdata;
> +
> + if (unit != TPS65910_UNIT_VDD3)
> + return -ENXIO;
> +
> + pdata->supply = *(pmic_pdata->supply + TPS65910_SUPPLY_VCC7);
> + 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,
> + .probe = tps65910_boost_probe,
> + .platdata_auto_alloc_size = sizeof(struct tps65910_regulator_pdata),
> +};
> +
> +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,
> + .probe = tps65910_buck_probe,
> + .platdata_auto_alloc_size = sizeof(struct tps65910_regulator_pdata),
> +};
> +
> +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,
> + .probe = tps65910_ldo_probe,
> + .platdata_auto_alloc_size = sizeof(struct tps65910_regulator_pdata),
> +};
> diff --git a/include/power/tps65910_pmic.h b/include/power/tps65910_pmic.h
> new file mode 100644
> index 0000000..23e031e
> --- /dev/null
> +++ b/include/power/tps65910_pmic.h
> @@ -0,0 +1,130 @@
> +/*
> + * Copyright (C) EETS GmbH, 2017, Felix Brack <f.brack at 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_SEL_MASK (0x3 << 2)
> +#define TPS65910_SUPPLY_STATE_MASK (0x3)
Might be easier to read if you tab out the values.
> +
> +/* 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,
> + TPS65910_UNIT_VBB,
> +};
> +
> +/* platform data */
> +struct tps65910_pdata {
> + u32 supply[TPS65910_NUM_SUPPLIES]; /* regulator supply voltage in uV */
> +};
Is this used outside the driver? Do you need one driver to access
another's platform data? That seems dodgy.
> +
> +struct tps65910_regulator_pdata {
> + u32 supply; /* regulator supply voltage in uV */
> +};
> +
> +/* driver names */
> +#define TPS65910_BUCK_DRIVER "tps65910_buck"
> +#define TPS65910_BOOST_DRIVER "tps65910_boost"
> +#define TPS65910_LDO_DRIVER "tps65910_ldo"
> +
> + #endif /* __TPS65910_PMIC_H_ */
> --
> 2.7.4
>
Regards,
Simon
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