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Message-ID: <20170523065611.4j2cnwqhptrymttx@dell>
Date: Tue, 23 May 2017 07:56:11 +0100
From: Lee Jones <lee.jones@...aro.org>
To: Keerthy <j-keerthy@...com>
Cc: "Andrew F. Davis" <afd@...com>, broonie@...nel.org,
robh+dt@...nel.org, t-kristo@...com, tony@...mide.com,
mark.rutland@....com, linux-omap@...r.kernel.org,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 1/3] mfd: lp87565: Add lp87565 PMIC support
On Tue, 23 May 2017, Keerthy wrote:
>
>
> On Monday 22 May 2017 09:53 AM, Keerthy wrote:
> >
> >
> > On Friday 19 May 2017 09:12 PM, Andrew F. Davis wrote:
> >> On 05/19/2017 07:42 AM, Keerthy wrote:
> >>> The LP87565 chip is a power management IC for Portable Navigation Systems
> >>> and Tablet Computing devices. It contains the following components:
> >>>
> >>> - Configurable Bucks(Single and multi-phase).
> >>> - Configurable General Purpose Output Signals (GPO).
> >>>
> >>> The LP87565-Q1 variant device uses two 2-phase outputs configuration,
> >>> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3
> >>> output.
> >>>
> >>> Signed-off-by: Keerthy <j-keerthy@...com>
> >>> ---
> >>> Documentation/devicetree/bindings/mfd/lp87565.txt | 44 ++++
> >>> drivers/mfd/Kconfig | 14 ++
> >>> drivers/mfd/Makefile | 1 +
> >>> drivers/mfd/lp87565.c | 103 ++++++++
> >>> include/linux/mfd/lp87565.h | 275 ++++++++++++++++++++++
> >>> 5 files changed, 437 insertions(+)
> >>> create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt
> >>> create mode 100644 drivers/mfd/lp87565.c
> >>> create mode 100644 include/linux/mfd/lp87565.h
> >>>
> >>> diff --git a/Documentation/devicetree/bindings/mfd/lp87565.txt b/Documentation/devicetree/bindings/mfd/lp87565.txt
> >>> new file mode 100644
> >>> index 0000000..38a00a1
> >>> --- /dev/null
> >>> +++ b/Documentation/devicetree/bindings/mfd/lp87565.txt
> >>> @@ -0,0 +1,44 @@
> >>> +TI LP873565 PMIC MFD driver
> >>> +
> >>> +Required properties:
> >>> + - compatible: "ti,lp87565", "ti,lp87565-q1"
> >>
> >> The of_device_id table in the driver only seems to match for
> >> "ti,lp87565-q1", not "ti,lp87565".
> >
> > I will add both. ti,lp87565 is the generic one and the ti,lp87565-q1 is
> > a specific one with dual phase regulators.
> >
> >>
> >>> + - reg: I2C slave address.
> >>> + - gpio-controller: Marks the device node as a GPIO Controller.
> >>> + - #gpio-cells: Should be two. The first cell is the pin number and
> >>> + the second cell is used to specify flags.
> >>> + See ../gpio/gpio.txt for more information.
> >>> + - xxx-in-supply: Phandle to parent supply node of each regulator
> >>> + populated under regulators node. xxx should match
> >>> + the supply_name populated in driver.
> >>> + - regulators: List of child nodes that specify the regulator
> >>> + initialization data.
> >>> +Example:
> >>> +
> >>> +lp87565: lp87565@60 {
> >>
> >> pmic: lp87565@60 {
> >>
> >> Is more standard.
> >
> > Sure. I will change that.
> >
> > Thanks for reviewing.
>
> Andrew,
>
> In case there are 2 PMICs on a board this would be confusing.
> Instead i would prefer to use:
>
> lp87565_pmic: lp87565@60 {
>
> There are already existing entries of that form.
This too is not correct.
It should be:
lp87565: pmic@60 {
The label at the front is flexible, but the node name should be the
generic type of device, so; gpio, regulator, serial, i2c, timer, pmic,
etc, followed by the value of the reg property.
> >>> + compatible = "ti,lp87565-q1";
> >>> + reg = <0x60>;
> >>> + gpio-controller;
> >>> + #gpio-cells = <2>;
> >>> +
> >>> + buck10-in-supply =<&vsys_3v3>;
> >>> + buck23-in-supply =<&vsys_3v3>;
> >>> + regulators: regulators {
> >>> + buck10_reg: buck10 {
> >>> + /*VDD_MPU*/
> >>> + regulator-name = "buck10";
> >>> + regulator-min-microvolt = <850000>;
> >>> + regulator-max-microvolt = <1250000>;
> >>> + regulator-always-on;
> >>> + regulator-boot-on;
> >>> + };
> >>> +
> >>> + buck23_reg: buck23 {
> >>> + /* VDD_GPU*/
> >>> + regulator-name = "buck23";
> >>> + regulator-min-microvolt = <850000>;
> >>> + regulator-max-microvolt = <1250000>;
> >>> + regulator-boot-on;
> >>> + regulator-always-on;
> >>> + };
> >>> + };
> >>> +};
> >>> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> >>> index 3eb5c93..5e884f3 100644
> >>> --- a/drivers/mfd/Kconfig
> >>> +++ b/drivers/mfd/Kconfig
> >>> @@ -1325,6 +1325,20 @@ config MFD_TI_LP873X
> >>> This driver can also be built as a module. If so, the module
> >>> will be called lp873x.
> >>>
> >>> +config MFD_TI_LP87565
> >>> + tristate "TI LP87565 Power Management IC"
> >>> + depends on I2C
> >>> + select MFD_CORE
> >>> + select REGMAP_I2C
> >>> + help
> >>> + If you say yes here then you get support for the LP87565 series of
> >>> + Power Management Integrated Circuits (PMIC).
> >>> + These include voltage regulators, thermal protection, configurable
> >>> + General Purpose Outputs (GPO) that are used in portable devices.
> >>> +
> >>> + This driver can also be built as a module. If so, the module
> >>> + will be called lp87565.
> >>> +
> >>> config MFD_TPS65218
> >>> tristate "TI TPS65218 Power Management chips"
> >>> depends on I2C
> >>> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> >>> index c16bf1e..7edbe1b 100644
> >>> --- a/drivers/mfd/Makefile
> >>> +++ b/drivers/mfd/Makefile
> >>> @@ -25,6 +25,7 @@ obj-$(CONFIG_HTC_PASIC3) += htc-pasic3.o
> >>> obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o
> >>>
> >>> obj-$(CONFIG_MFD_TI_LP873X) += lp873x.o
> >>> +obj-$(CONFIG_MFD_TI_LP87565) += lp87565.o
> >>>
> >>> obj-$(CONFIG_MFD_DAVINCI_VOICECODEC) += davinci_voicecodec.o
> >>> obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o
> >>> diff --git a/drivers/mfd/lp87565.c b/drivers/mfd/lp87565.c
> >>> new file mode 100644
> >>> index 0000000..dff882f
> >>> --- /dev/null
> >>> +++ b/drivers/mfd/lp87565.c
> >>> @@ -0,0 +1,103 @@
> >>> +/*
> >>> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
> >>> + *
> >>> + * Author: Keerthy <j-keerthy@...com>
> >>> + *
> >>> + * This program is free software; you can redistribute it and/or
> >>> + * modify it under the terms of the GNU General Public License as
> >>> + * published by the Free Software Foundation version 2.
> >>> + *
> >>> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> >>> + * kind, whether express or implied; without even the implied warranty
> >>> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> >>> + * GNU General Public License for more details.
> >>> + */
> >>> +
> >>> +#include <linux/interrupt.h>
> >>> +#include <linux/mfd/core.h>
> >>> +#include <linux/module.h>
> >>> +#include <linux/of_device.h>
> >>> +#include <linux/regmap.h>
> >>> +
> >>> +#include <linux/mfd/lp87565.h>
> >>> +
> >>> +static const struct regmap_config lp87565_regmap_config = {
> >>> + .reg_bits = 8,
> >>> + .val_bits = 8,
> >>> + .max_register = LP87565_REG_MAX,
> >>> +};
> >>> +
> >>> +static const struct mfd_cell lp87565_cells[] = {
> >>> + { .name = "lp87565-q1-regulator", },
> >>> + { .name = "lp87565-q1-gpio", },
> >>> +};
> >>> +
> >>> +static const struct of_device_id of_lp87565_match_table[] = {
> >>> + {
> >>> + .compatible = "ti,lp87565-q1",
> >>> + .data = (void *)LP87565_DEVICE_TYPE_LP87565_Q1,
> >>> + },
> >>> + {}
> >>> +};
> >>> +MODULE_DEVICE_TABLE(of, of_lp87565_match_table);
> >>> +
> >>> +static int lp87565_probe(struct i2c_client *client,
> >>> + const struct i2c_device_id *ids)
> >>> +{
> >>> + struct lp87565 *lp87565;
> >>> + const struct of_device_id *of_id;
> >>> + int ret;
> >>> + unsigned int otpid;
> >>> +
> >>> + lp87565 = devm_kzalloc(&client->dev, sizeof(*lp87565), GFP_KERNEL);
> >>> + if (!lp87565)
> >>> + return -ENOMEM;
> >>> +
> >>> + lp87565->dev = &client->dev;
> >>> +
> >>> + lp87565->regmap = devm_regmap_init_i2c(client, &lp87565_regmap_config);
> >>> + if (IS_ERR(lp87565->regmap)) {
> >>> + ret = PTR_ERR(lp87565->regmap);
> >>> + dev_err(lp87565->dev,
> >>> + "Failed to initialize register map: %d\n", ret);
> >>> + return ret;
> >>> + }
> >>> +
> >>> + ret = regmap_read(lp87565->regmap, LP87565_REG_OTP_REV, &otpid);
> >>> + if (ret) {
> >>> + dev_err(lp87565->dev, "Failed to read OTP ID\n");
> >>> + return ret;
> >>> + }
> >>> +
> >>> + lp87565->rev = otpid & LP87565_OTP_REV_OTP_ID;
> >>> + of_id = of_match_device(of_lp87565_match_table, &client->dev);
> >>> + if (of_id)
> >>> + lp87565->dev_type = (enum lp87565_device_type)of_id->data;
> >>> +
> >>> + i2c_set_clientdata(client, lp87565);
> >>> +
> >>> + ret = mfd_add_devices(lp87565->dev, PLATFORM_DEVID_AUTO, lp87565_cells,
> >>> + ARRAY_SIZE(lp87565_cells), NULL, 0, NULL);
> >>> +
> >>> + return ret;
> >>> +}
> >>> +
> >>> +static const struct i2c_device_id lp87565_id_table[] = {
> >>> + { "lp87565-q1", 0 },
> >>> + { },
> >>> +};
> >>> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table);
> >>> +
> >>> +static struct i2c_driver lp87565_driver = {
> >>> + .driver = {
> >>> + .name = "lp87565",
> >>> + .of_match_table = of_lp87565_match_table,
> >>> + },
> >>> + .probe = lp87565_probe,
> >>> + .id_table = lp87565_id_table,
> >>> +};
> >>> +module_i2c_driver(lp87565_driver);
> >>> +
> >>> +MODULE_AUTHOR("J Keerthy <j-keerthy@...com>");
> >>> +MODULE_DESCRIPTION("lp87565 chip family Multi-Function Device driver");
> >>> +MODULE_LICENSE("GPL v2");
> >>> diff --git a/include/linux/mfd/lp87565.h b/include/linux/mfd/lp87565.h
> >>> new file mode 100644
> >>> index 0000000..6112365
> >>> --- /dev/null
> >>> +++ b/include/linux/mfd/lp87565.h
> >>> @@ -0,0 +1,275 @@
> >>> +/*
> >>> + * Functions to access LP87565 power management chip.
> >>> + *
> >>> + * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
> >>> + *
> >>> + * This program is free software; you can redistribute it and/or
> >>> + * modify it under the terms of the GNU General Public License as
> >>> + * published by the Free Software Foundation version 2.
> >>> + *
> >>> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> >>> + * kind, whether express or implied; without even the implied warranty
> >>> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> >>> + * GNU General Public License for more details.
> >>> + */
> >>> +
> >>> +#ifndef __LINUX_MFD_LP87565_H
> >>> +#define __LINUX_MFD_LP87565_H
> >>> +
> >>> +#include <linux/i2c.h>
> >>> +#include <linux/regulator/driver.h>
> >>> +#include <linux/regulator/machine.h>
> >>> +
> >>> +enum lp87565_device_type {
> >>> + LP87565_DEVICE_TYPE_UNKNOWN = 0,
> >>> + LP87565_DEVICE_TYPE_LP87565_Q1,
> >>> +};
> >>> +
> >>> +/* All register addresses */
> >>> +#define LP87565_REG_DEV_REV 0X00
> >>> +#define LP87565_REG_OTP_REV 0X01
> >>> +#define LP87565_REG_BUCK0_CTRL_1 0X02
> >>> +#define LP87565_REG_BUCK0_CTRL_2 0X03
> >>> +
> >>> +#define LP87565_REG_BUCK1_CTRL_1 0X04
> >>> +#define LP87565_REG_BUCK1_CTRL_2 0X05
> >>> +
> >>> +#define LP87565_REG_BUCK2_CTRL_1 0X06
> >>> +#define LP87565_REG_BUCK2_CTRL_2 0X07
> >>> +
> >>> +#define LP87565_REG_BUCK3_CTRL_1 0X08
> >>> +#define LP87565_REG_BUCK3_CTRL_2 0X09
> >>> +
> >>> +#define LP87565_REG_BUCK0_VOUT 0X0A
> >>> +#define LP87565_REG_BUCK0_FLOOR_VOUT 0X0B
> >>> +
> >>> +#define LP87565_REG_BUCK1_VOUT 0X0C
> >>> +#define LP87565_REG_BUCK1_FLOOR_VOUT 0X0D
> >>> +
> >>> +#define LP87565_REG_BUCK2_VOUT 0X0E
> >>> +#define LP87565_REG_BUCK2_FLOOR_VOUT 0X0F
> >>> +
> >>> +#define LP87565_REG_BUCK3_VOUT 0X10
> >>> +#define LP87565_REG_BUCK3_FLOOR_VOUT 0X11
> >>> +
> >>> +#define LP87565_REG_BUCK0_DELAY 0X12
> >>> +#define LP87565_REG_BUCK1_DELAY 0X13
> >>> +
> >>> +#define LP87565_REG_BUCK2_DELAY 0X14
> >>> +#define LP87565_REG_BUCK3_DELAY 0X15
> >>> +
> >>> +#define LP87565_REG_GPO2_DELAY 0X16
> >>> +#define LP87565_REG_GPO3_DELAY 0X17
> >>> +#define LP87565_REG_RESET 0X18
> >>> +#define LP87565_REG_CONFIG 0X19
> >>> +
> >>> +#define LP87565_REG_INT_TOP_1 0X1A
> >>> +#define LP87565_REG_INT_TOP_2 0X1B
> >>> +
> >>> +#define LP87565_REG_INT_BUCK_0_1 0X1C
> >>> +#define LP87565_REG_INT_BUCK_2_3 0X1D
> >>> +#define LP87565_REG_TOP_STAT 0X1E
> >>> +#define LP87565_REG_BUCK_0_1_STAT 0X1F
> >>> +#define LP87565_REG_BUCK_2_3_STAT 0x20
> >>> +
> >>> +#define LP87565_REG_TOP_MASK_1 0x21
> >>> +#define LP87565_REG_TOP_MASK_2 0x22
> >>> +
> >>> +#define LP87565_REG_BUCK_0_1_MASK 0x23
> >>> +#define LP87565_REG_BUCK_2_3_MASK 0x24
> >>> +#define LP87565_REG_SEL_I_LOAD 0x25
> >>> +
> >>> +#define LP87565_REG_I_LOAD_2 0x26
> >>> +#define LP87565_REG_I_LOAD_1 0x27
> >>> +
> >>> +#define LP87565_REG_PGOOD_CTRL1 0x28
> >>> +#define LP87565_REG_PGOOD_CTRL2 0x29
> >>> +#define LP87565_REG_PGOOD_FLT 0x2A
> >>> +#define LP87565_REG_PLL_CTRL 0x2B
> >>> +#define LP87565_REG_PIN_FUNCTION 0x2C
> >>> +#define LP87565_REG_GPIO_CONFIG 0x2D
> >>> +#define LP87565_REG_GPIO_IN 0x2E
> >>> +#define LP87565_REG_GPIO_OUT 0x2F
> >>> +
> >>> +#define LP87565_REG_MAX LP87565_REG_GPIO_OUT
> >>> +
> >>> +/* Register field definitions */
> >>> +#define LP87565_DEV_REV_DEV_ID 0xC0
> >>> +#define LP87565_DEV_REV_ALL_LAYER 0x30
> >>> +#define LP87565_DEV_REV_METAL_LAYER 0x0F
> >>> +
> >>> +#define LP87565_OTP_REV_OTP_ID 0xFF
> >>> +
> >>> +#define LP87565_BUCK_CTRL_1_EN BIT(7)
> >>> +#define LP87565_BUCK_CTRL_1_EN_PIN_CTRL BIT(6)
> >>> +#define LP87565_BUCK_CTRL_1_PIN_SELECT_EN 0x30
> >>> +
> >>> +#define LP87565_BUCK_CTRL_1_ROOF_FLOOR_EN BIT(3)
> >>> +#define LP87565_BUCK_CTRL_1_RDIS_EN BIT(2)
> >>> +#define LP87565_BUCK_CTRL_1_FPWM BIT(1)
> >>> +/* Bit0 is reserved for BUCK1 and BUCK3 and valid only for BUCK0 and BUCK2 */
> >>> +#define LP87565_BUCK_CTRL_1_FPWM_MP_0_2 BIT(0)
> >>> +
> >>> +#define LP87565_BUCK_CTRL_2_ILIM 0x38
> >>> +#define LP87565_BUCK_CTRL_2_SLEW_RATE 0x07
> >>> +
> >>> +#define LP87565_BUCK_VSET 0xFF
> >>> +#define LP87565_BUCK_FLOOR_VSET 0xFF
> >>> +
> >>> +#define LP87565_BUCK_SHUTDOWN_DELAY 0xF0
> >>> +#define LP87565_BUCK_STARTUP_DELAY 0x0F
> >>> +
> >>> +#define LP87565_GPIO_SHUTDOWN_DELAY 0xF0
> >>> +#define LP87565_GPIO_STARTUP_DELAY 0x0F
> >>> +
> >>> +#define LP87565_RESET_SW_RESET BIT(0)
> >>> +
> >>> +#define LP87565_CONFIG_DOUBLE_DELAY BIT(7)
> >>> +#define LP87565_CONFIG_CLKIN_PD BIT(6)
> >>> +#define LP87565_CONFIG_EN4_PD BIT(5)
> >>> +#define LP87565_CONFIG_EN3_PD BIT(4)
> >>> +#define LP87565_CONFIG_TDIE_WARN_LEVEL BIT(3)
> >>> +#define LP87565_CONFIG_EN2_PD BIT(2)
> >>> +#define LP87565_CONFIG_EN1_PD BIT(1)
> >>> +
> >>> +#define LP87565_INT_GPIO BIT(7)
> >>> +#define LP87565_INT_BUCK23 BIT(6)
> >>> +#define LP87565_INT_BUCK01 BIT(5)
> >>> +#define LP87565_NO_SYNC_CLK BIT(4)
> >>> +#define LP87565_TDIE_SD BIT(3)
> >>> +#define LP87565_TDIE_WARN BIT(2)
> >>> +#define LP87565_INT_OVP BIT(1)
> >>> +#define LP87565_I_LOAD_READY BIT(0)
> >>> +
> >>> +#define LP87565_INT_TOP2_RESET_REG BIT(0)
> >>> +
> >>> +#define LP87565_BUCK1_PG_INT BIT(6)
> >>> +#define LP87565_BUCK1_SC_INT BIT(5)
> >>> +#define LP87565_BUCK1_ILIM_INT BIT(4)
> >>> +#define LP87565_BUCK0_PG_INT BIT(2)
> >>> +#define LP87565_BUCK0_SC_INT BIT(1)
> >>> +#define LP87565_BUCK0_ILIM_INT BIT(0)
> >>> +
> >>> +#define LP87565_BUCK3_PG_INT BIT(6)
> >>> +#define LP87565_BUCK3_SC_INT BIT(5)
> >>> +#define LP87565_BUCK3_ILIM_INT BIT(4)
> >>> +#define LP87565_BUCK2_PG_INT BIT(2)
> >>> +#define LP87565_BUCK2_SC_INT BIT(1)
> >>> +#define LP87565_BUCK2_ILIM_INT BIT(0)
> >>> +
> >>> +#define LP87565_SYNC_CLK_STAT BIT(4)
> >>> +#define LP87565_TDIE_SD_STAT BIT(3)
> >>> +#define LP87565_TDIE_WARN_STAT BIT(2)
> >>> +#define LP87565_OVP_STAT BIT(1)
> >>> +
> >>> +#define LP87565_BUCK1_STAT BIT(7)
> >>> +#define LP87565_BUCK1_PG_STAT BIT(6)
> >>> +#define LP87565_BUCK1_ILIM_STAT BIT(4)
> >>> +#define LP87565_BUCK0_STAT BIT(3)
> >>> +#define LP87565_BUCK0_PG_STAT BIT(2)
> >>> +#define LP87565_BUCK0_ILIM_STAT BIT(0)
> >>> +
> >>> +#define LP87565_BUCK3_STAT BIT(7)
> >>> +#define LP87565_BUCK3_PG_STAT BIT(6)
> >>> +#define LP87565_BUCK3_ILIM_STAT BIT(4)
> >>> +#define LP87565_BUCK2_STAT BIT(3)
> >>> +#define LP87565_BUCK2_PG_STAT BIT(2)
> >>> +#define LP87565_BUCK2_ILIM_STAT BIT(0)
> >>> +
> >>> +#define LPL87565_GPIO_MASK BIT(7)
> >>> +#define LPL87565_SYNC_CLK_MASK BIT(4)
> >>> +#define LPL87565_TDIE_WARN_MASK BIT(2)
> >>> +#define LPL87565_I_LOAD_READY_MASK BIT(0)
> >>> +
> >>> +#define LPL87565_RESET_REG_MASK BIT(0)
> >>> +
> >>> +#define LPL87565_BUCK1_PG_MASK BIT(6)
> >>> +#define LPL87565_BUCK1_ILIM_MASK BIT(4)
> >>> +#define LPL87565_BUCK0_PG_MASK BIT(2)
> >>> +#define LPL87565_BUCK0_ILIM_MASK BIT(0)
> >>> +
> >>> +#define LPL87565_BUCK3_PG_MASK BIT(6)
> >>> +#define LPL87565_BUCK3_ILIM_MASK BIT(4)
> >>> +#define LPL87565_BUCK2_PG_MASK BIT(2)
> >>> +#define LPL87565_BUCK2_ILIM_MASK BIT(0)
> >>> +
> >>> +#define LP87565_LOAD_CURRENT_BUCK_SELECT 0x3
> >>> +
> >>> +#define LP87565_I_LOAD2_BUCK_LOAD_CURRENT 0x3
> >>> +#define LP87565_I_LOAD1_BUCK_LOAD_CURRENT 0xFF
> >>> +
> >>> +#define LP87565_PG3_SEL 0xC0
> >>> +#define LP87565_PG2_SEL 0x30
> >>> +#define LP87565_PG1_SEL 0x0C
> >>> +#define LP87565_PG0_SEL 0x03
> >>> +
> >>> +#define LP87565_HALF_DAY BIT(7)
> >>> +#define LP87565_EN_PG0_NINT BIT(6)
> >>> +#define LP87565_PGOOD_SET_DELAY BIT(5)
> >>> +#define LP87565_EN_PGFLT_STAT BIT(4)
> >>> +#define LP87565_PGOOD_WINDOW BIT(2)
> >>> +#define LP87565_PGOOD_OD BIT(1)
> >>> +#define LP87565_PGOOD_POL BIT(0)
> >>> +
> >>> +#define LP87565_PG3_FLT BIT(3)
> >>> +#define LP87565_PG2_FLT BIT(2)
> >>> +#define LP87565_PG1_FLT BIT(1)
> >>> +#define LP87565_PG0_FLT BIT(0)
> >>> +
> >>> +#define LP87565_PLL_MODE 0xC0
> >>> +#define LP87565_EXT_CLK_FREQ 0x1F
> >>> +
> >>> +#define LP87565_EN_SPREAD_SPEC BIT(7)
> >>> +#define LP87565_EN_PIN_CTRL_GPIO3 BIT(6)
> >>> +#define LP87565_EN_PIN_SELECT_GPIO3 BIT(5)
> >>> +#define LP87565_EN_PIN_CTRL_GPIO2 BIT(4)
> >>> +#define LP87565_EN_PIN_SELECT_GPIO2 BIT(3)
> >>> +#define LP87565_GPIO3_SEL BIT(2)
> >>> +#define LP87565_GPIO2_SEL BIT(1)
> >>> +#define LP87565_GPIO1_SEL BIT(0)
> >>> +
> >>> +#define LP87565_GOIO3_OD BIT(6)
> >>> +#define LP87565_GOIO2_OD BIT(5)
> >>> +#define LP87565_GOIO1_OD BIT(4)
> >>> +#define LP87565_GOIO3_DIR BIT(2)
> >>> +#define LP87565_GOIO2_DIR BIT(1)
> >>> +#define LP87565_GOIO1_DIR BIT(0)
> >>> +
> >>> +#define LP87565_GOIO3_IN BIT(2)
> >>> +#define LP87565_GOIO2_IN BIT(1)
> >>> +#define LP87565_GOIO1_IN BIT(0)
> >>> +
> >>> +#define LP87565_GOIO3_OUT BIT(2)
> >>> +#define LP87565_GOIO2_OUT BIT(1)
> >>> +#define LP87565_GOIO1_OUT BIT(0)
> >>> +
> >>> +/* Number of step-down converters available */
> >>> +#define LP87565_NUM_BUCK 6
> >>> +
> >>> +enum LP87565_regulator_id {
> >>> + /* BUCK's */
> >>> + LP87565_BUCK_0,
> >>> + LP87565_BUCK_1,
> >>> + LP87565_BUCK_2,
> >>> + LP87565_BUCK_3,
> >>> + LP87565_BUCK_10,
> >>> + LP87565_BUCK_23,
> >>> +};
> >>> +
> >>> +/**
> >>> + * struct LP87565 - state holder for the LP87565 driver
> >>> + * @dev: struct device pointer for MFD device
> >>> + * @rev: revision of the LP87565
> >>> + * @dev_type: The device type for example lp87565-q1
> >>> + * @lock: lock guarding the data structure
> >>> + * @regmap: register map of the LP87565 PMIC
> >>> + *
> >>> + * Device data may be used to access the LP87565 chip
> >>> + */
> >>> +struct lp87565 {
> >>> + struct device *dev;
> >>> + u8 rev;
> >>> + u8 dev_type;
> >>> + struct regmap *regmap;
> >>> +};
> >>> +#endif /* __LINUX_MFD_LP87565_H */
> >>>
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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