Unverified Commit 083986c2 authored by Mark Brown's avatar Mark Brown
Browse files

Merge series "Add pca9450 driver" from Robin Gong <yibin.gong@nxp.com>: 

Add pca9450 driver for i.mx8mn-evk board. PCA9450A/B/C supported now.
Please refer to below link for PCA9450 datasheet:
https://www.nxp.com/docs/en/data-sheet/PCA9450DS.pdf

v2:
  1. rebase with the latest code to use linear_ranges helper instead.
  2. address Frieder's comments, such as dulipcated buck4 description,
     debug info added etc.

Robin Gong (4):
  regulator: pca9450: add pca9450 pmic driver
  dt-bindings: regulator: add pca9450 regulator yaml
  arm64: dts: imx8mn-evk: add pca9450 for i.mx8mn-evk board
  arm64: configs: add pca9450 pmic driver

 .../bindings/regulator/nxp,pca9450-regulator.yaml  | 190 +++++
 arch/arm64/boot/dts/freescale/imx8mn-evk.dts       |  96 +++
 arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi      |   6 +
 arch/arm64/configs/defconfig                       |   1 +
 drivers/regulator/Kconfig                          |   8 +
 drivers/regulator/Makefile                         |   1 +
 drivers/regulator/pca9450-regulator.c              | 859 +++++++++++++++++++++
 include/linux/regulator/pca9450.h                  | 219 ++++++
 8 files changed, 1380 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml
 create mode 100644 drivers/regulator/pca9450-regulator.c
 create mode 100644 include/linux/regulator/pca9450.h

--
2.7.4

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Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml

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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause

%YAML 1.2

---

$id: http://devicetree.org/schemas/regulator/nxp,pca9450-regulator.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: NXP PCA9450A/B/C Power Management Integrated Circuit regulators



maintainers:

  - Robin Gong <yibin.gong@nxp.com>



description: |

  Regulator nodes should be named to BUCK_<number> and LDO_<number>. The

  definition for each of these nodes is defined using the standard

  binding for regulators at

  Documentation/devicetree/bindings/regulator/regulator.txt.

  Datasheet is available at

  https://www.nxp.com/docs/en/data-sheet/PCA9450DS.pdf



#The valid names for PCA9450 regulator nodes are:

#BUCK1, BUCK2, BUCK3, BUCK4, BUCK5, BUCK6,

#LDO1, LDO2, LDO3, LDO4, LDO5

#Note: Buck3 removed on PCA9450B and connect with Buck1 on PCA9450C.



properties:

  compatible:

    enum:

      - nxp,pca9450a

      - nxp,pca9450b

      - nxp,pca9450c



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  regulators:

    type: object

    description: |

      list of regulators provided by this controller



    patternProperties:

      "^LDO[1-5]$":

        type: object

        $ref: regulator.yaml#

        description:

          Properties for single LDO regulator.



        properties:

          regulator-name:

            pattern: "^LDO[1-5]$"

            description:

              should be "LDO1", ..., "LDO5"



        unevaluatedProperties: false



      "^BUCK[1-6]$":

        type: object

        $ref: regulator.yaml#

        description:

          Properties for single BUCK regulator.



        properties:

          regulator-name:

            pattern: "^BUCK[1-6]$"

            description:

              should be "BUCK1", ..., "BUCK6"



          nxp,dvs-run-voltage:

            $ref: "/schemas/types.yaml#/definitions/uint32"

            minimum: 600000

            maximum: 2187500

            description:

              PMIC default "RUN" state voltage in uV. Only Buck1~3 have such

              dvs(dynamic voltage scaling) property.



          nxp,dvs-standby-voltage:

            $ref: "/schemas/types.yaml#/definitions/uint32"

            minimum: 600000

            maximum: 2187500

            description:

              PMIC default "STANDBY" state voltage in uV. Only Buck1~3 have such

              dvs(dynamic voltage scaling) property.



        unevaluatedProperties: false



    additionalProperties: false



required:

  - compatible

  - reg

  - interrupts

  - regulators



additionalProperties: false



examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>



    i2c {

        #address-cells = <1>;

        #size-cells = <0>;

        pmic: pmic@25 {

            compatible = "nxp,pca9450b";

            reg = <0x25>;

            pinctrl-0 = <&pinctrl_pmic>;

            interrupt-parent = <&gpio1>;

            interrupts = <3 IRQ_TYPE_LEVEL_LOW>;



            regulators {

                buck1: BUCK1 {

                    regulator-name = "BUCK1";

                    regulator-min-microvolt = <600000>;

                    regulator-max-microvolt = <2187500>;

                    regulator-boot-on;

                    regulator-always-on;

                    regulator-ramp-delay = <3125>;

                };

                buck2: BUCK2 {

                    regulator-name = "BUCK2";

                    regulator-min-microvolt = <600000>;

                    regulator-max-microvolt = <2187500>;

                    regulator-boot-on;

                    regulator-always-on;

                    regulator-ramp-delay = <3125>;

                    nxp,dvs-run-voltage = <950000>;

                    nxp,dvs-standby-voltage = <850000>;

                };

                buck4: BUCK4 {

                    regulator-name = "BUCK4";

                    regulator-min-microvolt = <600000>;

                    regulator-max-microvolt = <3400000>;

                    regulator-boot-on;

                    regulator-always-on;

                };

                buck5: BUCK5 {

                    regulator-name = "BUCK5";

                    regulator-min-microvolt = <600000>;

                    regulator-max-microvolt = <3400000>;

                    regulator-boot-on;

                    regulator-always-on;

                };

                buck6: BUCK6 {

                    regulator-name = "BUCK6";

                    regulator-min-microvolt = <600000>;

                    regulator-max-microvolt = <3400000>;

                    regulator-boot-on;

                    regulator-always-on;

                };



                ldo1: LDO1 {

                    regulator-name = "LDO1";

                    regulator-min-microvolt = <1600000>;

                    regulator-max-microvolt = <3300000>;

                    regulator-boot-on;

                    regulator-always-on;

                };

                ldo2: LDO2 {

                    regulator-name = "LDO2";

                    regulator-min-microvolt = <800000>;

                    regulator-max-microvolt = <1150000>;

                    regulator-boot-on;

                    regulator-always-on;

                };

                ldo3: LDO3 {

                    regulator-name = "LDO3";

                    regulator-min-microvolt = <800000>;

                    regulator-max-microvolt = <3300000>;

                    regulator-boot-on;

                    regulator-always-on;

                };

                ldo4: LDO4 {

                    regulator-name = "LDO4";

                    regulator-min-microvolt = <800000>;

                    regulator-max-microvolt = <3300000>;

                    regulator-boot-on;

                    regulator-always-on;

                };

                ldo5: LDO5 {

                    regulator-name = "LDO5";

                    regulator-min-microvolt = <1800000>;

                    regulator-max-microvolt = <3300000>;

                    regulator-boot-on;

                    regulator-always-on;

                };

            };

        };

    };

drivers/regulator/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -750,6 +750,14 @@ config REGULATOR_PBIAS 
	 This driver provides support for OMAP pbias modelled

	 regulators.



config REGULATOR_PCA9450

	tristate "NXP PCA9450A/PCA9450B/PCA9450C regulator driver"

	depends on I2C

	select REGMAP_I2C

	help

	  Say y here to support the NXP PCA9450A/PCA9450B/PCA9450C PMIC

	  regulator driver.



config REGULATOR_PCAP

	tristate "Motorola PCAP2 regulator driver"

	depends on EZX_PCAP

drivers/regulator/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -96,6 +96,7 @@ obj-$(CONFIG_REGULATOR_QCOM_SMD_RPM) += qcom_smd-regulator.o 
obj-$(CONFIG_REGULATOR_QCOM_SPMI) += qcom_spmi-regulator.o

obj-$(CONFIG_REGULATOR_QCOM_USB_VBUS) += qcom_usb_vbus-regulator.o

obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o

obj-$(CONFIG_REGULATOR_PCA9450) += pca9450-regulator.o

obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o

obj-$(CONFIG_REGULATOR_PV88060) += pv88060-regulator.o

obj-$(CONFIG_REGULATOR_PV88080) += pv88080-regulator.o

drivers/regulator/pca9450-regulator.c

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+843 −0

File added.

Preview size limit exceeded, changes collapsed.

include/linux/regulator/pca9450.h

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/* SPDX-License-Identifier: GPL-2.0-or-later */

/* Copyright 2020 NXP. */



#ifndef __LINUX_REG_PCA9450_H__

#define __LINUX_REG_PCA9450_H__



#include <linux/regmap.h>



enum pca9450_chip_type {

	PCA9450_TYPE_PCA9450A = 0,

	PCA9450_TYPE_PCA9450BC,

	PCA9450_TYPE_AMOUNT,

};



enum {

	PCA9450_BUCK1 = 0,

	PCA9450_BUCK2,

	PCA9450_BUCK3,

	PCA9450_BUCK4,

	PCA9450_BUCK5,

	PCA9450_BUCK6,

	PCA9450_LDO1,

	PCA9450_LDO2,

	PCA9450_LDO3,

	PCA9450_LDO4,

	PCA9450_LDO5,

	PCA9450_REGULATOR_CNT,

};



enum {

	PCA9450_DVS_LEVEL_RUN = 0,

	PCA9450_DVS_LEVEL_STANDBY,

	PCA9450_DVS_LEVEL_MAX,

};



#define PCA9450_BUCK1_VOLTAGE_NUM	0x80

#define PCA9450_BUCK2_VOLTAGE_NUM	0x80

#define PCA9450_BUCK3_VOLTAGE_NUM	0x80

#define PCA9450_BUCK4_VOLTAGE_NUM	0x80



#define PCA9450_BUCK5_VOLTAGE_NUM	0x80

#define PCA9450_BUCK6_VOLTAGE_NUM	0x80



#define PCA9450_LDO1_VOLTAGE_NUM	0x08

#define PCA9450_LDO2_VOLTAGE_NUM	0x08

#define PCA9450_LDO3_VOLTAGE_NUM	0x20

#define PCA9450_LDO4_VOLTAGE_NUM	0x20

#define PCA9450_LDO5_VOLTAGE_NUM	0x10



enum {

	PCA9450_REG_DEV_ID	    = 0x00,

	PCA9450_REG_INT1	    = 0x01,

	PCA9450_REG_INT1_MSK	    = 0x02,

	PCA9450_REG_STATUS1	    = 0x03,

	PCA9450_REG_STATUS2	    = 0x04,

	PCA9450_REG_PWRON_STAT	    = 0x05,

	PCA9450_REG_SWRST	    = 0x06,

	PCA9450_REG_PWRCTRL         = 0x07,

	PCA9450_REG_RESET_CTRL      = 0x08,

	PCA9450_REG_CONFIG1         = 0x09,

	PCA9450_REG_CONFIG2         = 0x0A,

	PCA9450_REG_BUCK123_DVS     = 0x0C,

	PCA9450_REG_BUCK1OUT_LIMIT  = 0x0D,

	PCA9450_REG_BUCK2OUT_LIMIT  = 0x0E,

	PCA9450_REG_BUCK3OUT_LIMIT  = 0x0F,

	PCA9450_REG_BUCK1CTRL       = 0x10,

	PCA9450_REG_BUCK1OUT_DVS0   = 0x11,

	PCA9450_REG_BUCK1OUT_DVS1   = 0x12,

	PCA9450_REG_BUCK2CTRL       = 0x13,

	PCA9450_REG_BUCK2OUT_DVS0   = 0x14,

	PCA9450_REG_BUCK2OUT_DVS1   = 0x15,

	PCA9450_REG_BUCK3CTRL       = 0x16,

	PCA9450_REG_BUCK3OUT_DVS0   = 0x17,

	PCA9450_REG_BUCK3OUT_DVS1   = 0x18,

	PCA9450_REG_BUCK4CTRL       = 0x19,

	PCA9450_REG_BUCK4OUT        = 0x1A,

	PCA9450_REG_BUCK5CTRL       = 0x1B,

	PCA9450_REG_BUCK5OUT        = 0x1C,

	PCA9450_REG_BUCK6CTRL       = 0x1D,

	PCA9450_REG_BUCK6OUT        = 0x1E,

	PCA9450_REG_LDO_AD_CTRL     = 0x20,

	PCA9450_REG_LDO1CTRL        = 0x21,

	PCA9450_REG_LDO2CTRL        = 0x22,

	PCA9450_REG_LDO3CTRL        = 0x23,

	PCA9450_REG_LDO4CTRL        = 0x24,

	PCA9450_REG_LDO5CTRL_L      = 0x25,

	PCA9450_REG_LDO5CTRL_H      = 0x26,

	PCA9450_REG_LOADSW_CTRL     = 0x2A,

	PCA9450_REG_VRFLT1_STS      = 0x2B,

	PCA9450_REG_VRFLT2_STS      = 0x2C,

	PCA9450_REG_VRFLT1_MASK     = 0x2D,

	PCA9450_REG_VRFLT2_MASK     = 0x2E,

	PCA9450_MAX_REGISTER	    = 0x2F,

};



/* PCA9450 BUCK ENMODE bits */

#define BUCK_ENMODE_OFF			0x00

#define BUCK_ENMODE_ONREQ		0x01

#define BUCK_ENMODE_ONREQ_STBYREQ	0x02

#define BUCK_ENMODE_ON			0x03



/* PCA9450_REG_BUCK1_CTRL bits */

#define BUCK1_RAMP_MASK			0xC0

#define BUCK1_RAMP_25MV			0x0

#define BUCK1_RAMP_12P5MV		0x1

#define BUCK1_RAMP_6P25MV		0x2

#define BUCK1_RAMP_3P125MV		0x3

#define BUCK1_DVS_CTRL			0x10

#define BUCK1_AD			0x08

#define BUCK1_FPWM			0x04

#define BUCK1_ENMODE_MASK		0x03



/* PCA9450_REG_BUCK2_CTRL bits */

#define BUCK2_RAMP_MASK			0xC0

#define BUCK2_RAMP_25MV			0x0

#define BUCK2_RAMP_12P5MV		0x1

#define BUCK2_RAMP_6P25MV		0x2

#define BUCK2_RAMP_3P125MV		0x3

#define BUCK2_DVS_CTRL			0x10

#define BUCK2_AD			0x08

#define BUCK2_FPWM			0x04

#define BUCK2_ENMODE_MASK		0x03



/* PCA9450_REG_BUCK3_CTRL bits */

#define BUCK3_RAMP_MASK			0xC0

#define BUCK3_RAMP_25MV			0x0

#define BUCK3_RAMP_12P5MV		0x1

#define BUCK3_RAMP_6P25MV		0x2

#define BUCK3_RAMP_3P125MV		0x3

#define BUCK3_DVS_CTRL			0x10

#define BUCK3_AD			0x08

#define BUCK3_FPWM			0x04

#define BUCK3_ENMODE_MASK		0x03



/* PCA9450_REG_BUCK4_CTRL bits */

#define BUCK4_AD			0x08

#define BUCK4_FPWM			0x04

#define BUCK4_ENMODE_MASK		0x03



/* PCA9450_REG_BUCK5_CTRL bits */

#define BUCK5_AD			0x08

#define BUCK5_FPWM			0x04

#define BUCK5_ENMODE_MASK		0x03



/* PCA9450_REG_BUCK6_CTRL bits */

#define BUCK6_AD			0x08

#define BUCK6_FPWM			0x04

#define BUCK6_ENMODE_MASK		0x03



/* PCA9450_BUCK1OUT_DVS0 bits */

#define BUCK1OUT_DVS0_MASK		0x7F

#define BUCK1OUT_DVS0_DEFAULT		0x14



/* PCA9450_BUCK1OUT_DVS1 bits */

#define BUCK1OUT_DVS1_MASK		0x7F

#define BUCK1OUT_DVS1_DEFAULT		0x14



/* PCA9450_BUCK2OUT_DVS0 bits */

#define BUCK2OUT_DVS0_MASK		0x7F

#define BUCK2OUT_DVS0_DEFAULT		0x14



/* PCA9450_BUCK2OUT_DVS1 bits */

#define BUCK2OUT_DVS1_MASK		0x7F

#define BUCK2OUT_DVS1_DEFAULT		0x14



/* PCA9450_BUCK3OUT_DVS0 bits */

#define BUCK3OUT_DVS0_MASK		0x7F

#define BUCK3OUT_DVS0_DEFAULT		0x14



/* PCA9450_BUCK3OUT_DVS1 bits */

#define BUCK3OUT_DVS1_MASK		0x7F

#define BUCK3OUT_DVS1_DEFAULT		0x14



/* PCA9450_REG_BUCK4OUT bits */

#define BUCK4OUT_MASK			0x7F

#define BUCK4OUT_DEFAULT		0x6C



/* PCA9450_REG_BUCK5OUT bits */

#define BUCK5OUT_MASK			0x7F

#define BUCK5OUT_DEFAULT		0x30



/* PCA9450_REG_BUCK6OUT bits */

#define BUCK6OUT_MASK			0x7F

#define BUCK6OUT_DEFAULT		0x14



/* PCA9450_REG_LDO1_VOLT bits */

#define LDO1_EN_MASK			0xC0

#define LDO1OUT_MASK			0x07



/* PCA9450_REG_LDO2_VOLT bits */

#define LDO2_EN_MASK			0xC0

#define LDO2OUT_MASK			0x07



/* PCA9450_REG_LDO3_VOLT bits */

#define LDO3_EN_MASK			0xC0

#define LDO3OUT_MASK			0x0F



/* PCA9450_REG_LDO4_VOLT bits */

#define LDO4_EN_MASK			0xC0

#define LDO4OUT_MASK			0x0F



/* PCA9450_REG_LDO5_VOLT bits */

#define LDO5L_EN_MASK			0xC0

#define LDO5LOUT_MASK			0x0F



#define LDO5H_EN_MASK			0xC0

#define LDO5HOUT_MASK			0x0F



/* PCA9450_REG_IRQ bits */

#define IRQ_PWRON			0x80

#define IRQ_WDOGB			0x40

#define IRQ_RSVD			0x20

#define IRQ_VR_FLT1			0x10

#define IRQ_VR_FLT2			0x08

#define IRQ_LOWVSYS			0x04

#define IRQ_THERM_105			0x02

#define IRQ_THERM_125			0x01



#endif /* __LINUX_REG_PCA9450_H__ */

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