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Commit ffe167b0 authored by Mark Brown's avatar Mark Brown
Browse files

Merge remote-tracking branches 'regulator/topic/max8649',... 

Merge remote-tracking branches 'regulator/topic/max8649', 'regulator/topic/mode', 'regulator/topic/mt6397', 'regulator/topic/pfuze100' and 'regulator/topic/qcom-rpm' into regulator-next
parents f3ba7299 035f3324 8460ef38 26967575 e5a7a72c 00cea31f

Documentation/devicetree/bindings/regulator/mt6397-regulator.txt

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Mediatek MT6397 Regulator Driver



Required properties:

- compatible: "mediatek,mt6397-regulator"

- mt6397regulator: List of regulators provided by this controller. It is named

  according to its regulator type, buck_<name> and ldo_<name>.

  The definition for each of these nodes is defined using the standard binding

  for regulators at Documentation/devicetree/bindings/regulator/regulator.txt.



The valid names for regulators are::

BUCK:

  buck_vpca15, buck_vpca7, buck_vsramca15, buck_vsramca7, buck_vcore, buck_vgpu,

  buck_vdrm, buck_vio18

LDO:

  ldo_vtcxo, ldo_va28, ldo_vcama, ldo_vio28, ldo_vusb, ldo_vmc, ldo_vmch,

  ldo_vemc3v3, ldo_vgp1, ldo_vgp2, ldo_vgp3, ldo_vgp4, ldo_vgp5, ldo_vgp6,

  ldo_vibr



Example:

	pmic {

		compatible = "mediatek,mt6397";



		mt6397regulator: mt6397regulator {

			compatible = "mediatek,mt6397-regulator";



			mt6397_vpca15_reg: buck_vpca15 {

				regulator-compatible = "buck_vpca15";

				regulator-name = "vpca15";

				regulator-min-microvolt = < 850000>;

				regulator-max-microvolt = <1350000>;

				regulator-ramp-delay = <12500>;

				regulator-enable-ramp-delay = <200>;

			};



			mt6397_vpca7_reg: buck_vpca7 {

				regulator-compatible = "buck_vpca7";

				regulator-name = "vpca7";

				regulator-min-microvolt = < 850000>;

				regulator-max-microvolt = <1350000>;

				regulator-ramp-delay = <12500>;

				regulator-enable-ramp-delay = <115>;

			};



			mt6397_vsramca15_reg: buck_vsramca15 {

				regulator-compatible = "buck_vsramca15";

				regulator-name = "vsramca15";

				regulator-min-microvolt = < 850000>;

				regulator-max-microvolt = <1350000>;

				regulator-ramp-delay = <12500>;

				regulator-enable-ramp-delay = <115>;



			};



			mt6397_vsramca7_reg: buck_vsramca7 {

				regulator-compatible = "buck_vsramca7";

				regulator-name = "vsramca7";

				regulator-min-microvolt = < 850000>;

				regulator-max-microvolt = <1350000>;

				regulator-ramp-delay = <12500>;

				regulator-enable-ramp-delay = <115>;



			};



			mt6397_vcore_reg: buck_vcore {

				regulator-compatible = "buck_vcore";

				regulator-name = "vcore";

				regulator-min-microvolt = < 850000>;

				regulator-max-microvolt = <1350000>;

				regulator-ramp-delay = <12500>;

				regulator-enable-ramp-delay = <115>;

			};



			mt6397_vgpu_reg: buck_vgpu {

				regulator-compatible = "buck_vgpu";

				regulator-name = "vgpu";

				regulator-min-microvolt = < 700000>;

				regulator-max-microvolt = <1350000>;

				regulator-ramp-delay = <12500>;

				regulator-enable-ramp-delay = <115>;

			};



			mt6397_vdrm_reg: buck_vdrm {

				regulator-compatible = "buck_vdrm";

				regulator-name = "vdrm";

				regulator-min-microvolt = < 800000>;

				regulator-max-microvolt = <1400000>;

				regulator-ramp-delay = <12500>;

				regulator-enable-ramp-delay = <500>;

			};



			mt6397_vio18_reg: buck_vio18 {

				regulator-compatible = "buck_vio18";

				regulator-name = "vio18";

				regulator-min-microvolt = <1500000>;

				regulator-max-microvolt = <2120000>;

				regulator-ramp-delay = <12500>;

				regulator-enable-ramp-delay = <500>;

			};



			mt6397_vtcxo_reg: ldo_vtcxo {

				regulator-compatible = "ldo_vtcxo";

				regulator-name = "vtcxo";

				regulator-min-microvolt = <2800000>;

				regulator-max-microvolt = <2800000>;

				regulator-enable-ramp-delay = <90>;

			};



			mt6397_va28_reg: ldo_va28 {

				regulator-compatible = "ldo_va28";

				regulator-name = "va28";

				/* fixed output 2.8 V */

				regulator-enable-ramp-delay = <218>;

			};



			mt6397_vcama_reg: ldo_vcama {

				regulator-compatible = "ldo_vcama";

				regulator-name = "vcama";

				regulator-min-microvolt = <1500000>;

				regulator-max-microvolt = <2800000>;

				regulator-enable-ramp-delay = <218>;

			};



			mt6397_vio28_reg: ldo_vio28 {

				regulator-compatible = "ldo_vio28";

				regulator-name = "vio28";

				/* fixed output 2.8 V */

				regulator-enable-ramp-delay = <240>;

			};



			mt6397_usb_reg: ldo_vusb {

				regulator-compatible = "ldo_vusb";

				regulator-name = "vusb";

				/* fixed output 3.3 V */

				regulator-enable-ramp-delay = <218>;

			};



			mt6397_vmc_reg: ldo_vmc {

				regulator-compatible = "ldo_vmc";

				regulator-name = "vmc";

				regulator-min-microvolt = <1800000>;

				regulator-max-microvolt = <3300000>;

				regulator-enable-ramp-delay = <218>;

			};



			mt6397_vmch_reg: ldo_vmch {

				regulator-compatible = "ldo_vmch";

				regulator-name = "vmch";

				regulator-min-microvolt = <3000000>;

				regulator-max-microvolt = <3300000>;

				regulator-enable-ramp-delay = <218>;

			};



			mt6397_vemc_3v3_reg: ldo_vemc3v3 {

				regulator-compatible = "ldo_vemc3v3";

				regulator-name = "vemc_3v3";

				regulator-min-microvolt = <3000000>;

				regulator-max-microvolt = <3300000>;

				regulator-enable-ramp-delay = <218>;

			};



			mt6397_vgp1_reg: ldo_vgp1 {

				regulator-compatible = "ldo_vgp1";

				regulator-name = "vcamd";

				regulator-min-microvolt = <1220000>;

				regulator-max-microvolt = <3300000>;

				regulator-enable-ramp-delay = <240>;

			};



			mt6397_vgp2_reg: ldo_vgp2 {

				egulator-compatible = "ldo_vgp2";

				regulator-name = "vcamio";

				regulator-min-microvolt = <1000000>;

				regulator-max-microvolt = <3300000>;

				regulator-enable-ramp-delay = <218>;

			};



			mt6397_vgp3_reg: ldo_vgp3 {

				regulator-compatible = "ldo_vgp3";

				regulator-name = "vcamaf";

				regulator-min-microvolt = <1200000>;

				regulator-max-microvolt = <3300000>;

				regulator-enable-ramp-delay = <218>;

			};



			mt6397_vgp4_reg: ldo_vgp4 {

				regulator-compatible = "ldo_vgp4";

				regulator-name = "vgp4";

				regulator-min-microvolt = <1200000>;

				regulator-max-microvolt = <3300000>;

				regulator-enable-ramp-delay = <218>;

			};



			mt6397_vgp5_reg: ldo_vgp5 {

				regulator-compatible = "ldo_vgp5";

				regulator-name = "vgp5";

				regulator-min-microvolt = <1200000>;

				regulator-max-microvolt = <3000000>;

				regulator-enable-ramp-delay = <218>;

			};



			mt6397_vgp6_reg: ldo_vgp6 {

				regulator-compatible = "ldo_vgp6";

				regulator-name = "vgp6";

				regulator-min-microvolt = <1200000>;

				regulator-max-microvolt = <3300000>;

				regulator-enable-ramp-delay = <218>;

			};



			mt6397_vibr_reg: ldo_vibr {

				regulator-compatible = "ldo_vibr";

				regulator-name = "vibr";

				regulator-min-microvolt = <1200000>;

				regulator-max-microvolt = <3300000>;

				regulator-enable-ramp-delay = <218>;

			};

		};

	};

Documentation/devicetree/bindings/regulator/pfuze100.txt

+93 −1
Original line number Diff line number Diff line 
PFUZE100 family of regulators



Required properties:

- compatible: "fsl,pfuze100" or "fsl,pfuze200"

- compatible: "fsl,pfuze100", "fsl,pfuze200", "fsl,pfuze3000"

- reg: I2C slave address



Required child node:
@@ -14,6 +14,8 @@ Required child node: 
  sw1ab,sw1c,sw2,sw3a,sw3b,sw4,swbst,vsnvs,vrefddr,vgen1~vgen6

  --PFUZE200

  sw1ab,sw2,sw3a,sw3b,swbst,vsnvs,vrefddr,vgen1~vgen6

  --PFUZE3000

  sw1a,sw1b,sw2,sw3,swbst,vsnvs,vrefddr,vldo1,vldo2,vccsd,v33,vldo3,vldo4



Each regulator is defined using the standard binding for regulators.
@@ -205,3 +207,93 @@ Example 2: PFUZE200 
			};

		};

	};



Example 3: PFUZE3000



	pmic: pfuze3000@08 {

		compatible = "fsl,pfuze3000";

		reg = <0x08>;



		regulators {

			sw1a_reg: sw1a {

				regulator-min-microvolt = <700000>;

				regulator-max-microvolt = <1475000>;

				regulator-boot-on;

				regulator-always-on;

				regulator-ramp-delay = <6250>;

			};

			/* use sw1c_reg to align with pfuze100/pfuze200 */

			sw1c_reg: sw1b {

				regulator-min-microvolt = <700000>;

				regulator-max-microvolt = <1475000>;

				regulator-boot-on;

				regulator-always-on;

				regulator-ramp-delay = <6250>;

			};



			sw2_reg: sw2 {

				regulator-min-microvolt = <2500000>;

				regulator-max-microvolt = <3300000>;

				regulator-boot-on;

				regulator-always-on;

			};



			sw3a_reg: sw3 {

				regulator-min-microvolt = <900000>;

				regulator-max-microvolt = <1650000>;

				regulator-boot-on;

				regulator-always-on;

			};



			swbst_reg: swbst {

				regulator-min-microvolt = <5000000>;

				regulator-max-microvolt = <5150000>;

			};



			snvs_reg: vsnvs {

				regulator-min-microvolt = <1000000>;

				regulator-max-microvolt = <3000000>;

				regulator-boot-on;

				regulator-always-on;

			};



			vref_reg: vrefddr {

				regulator-boot-on;

				regulator-always-on;

			};



			vgen1_reg: vldo1 {

				regulator-min-microvolt = <1800000>;

				regulator-max-microvolt = <3300000>;

				regulator-always-on;

			};



			vgen2_reg: vldo2 {

				regulator-min-microvolt = <800000>;

				regulator-max-microvolt = <1550000>;

			};



			vgen3_reg: vccsd {

				regulator-min-microvolt = <2850000>;

				regulator-max-microvolt = <3300000>;

				regulator-always-on;

			};



			vgen4_reg: v33 {

				regulator-min-microvolt = <2850000>;

				regulator-max-microvolt = <3300000>;

			};



			vgen5_reg: vldo3 {

				regulator-min-microvolt = <1800000>;

				regulator-max-microvolt = <3300000>;

				regulator-always-on;

			};



			vgen6_reg: vldo4 {

				regulator-min-microvolt = <1800000>;

				regulator-max-microvolt = <3300000>;

				regulator-always-on;

			};

		};

	};

drivers/regulator/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -441,6 +441,15 @@ config REGULATOR_MC13892 
	  Say y here to support the regulators found on the Freescale MC13892

	  PMIC.



config REGULATOR_MT6397

	tristate "MediaTek MT6397 PMIC"

	depends on MFD_MT6397

	help

	  Say y here to select this option to enable the power regulator of

	  MediaTek MT6397 PMIC.

	  This driver supports the control of different power rails of device

	  through regulator interface.



config REGULATOR_PALMAS

	tristate "TI Palmas PMIC Regulators"

	depends on MFD_PALMAS

drivers/regulator/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -59,6 +59,7 @@ obj-$(CONFIG_REGULATOR_MAX77843) += max77843.o 
obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o

obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o

obj-$(CONFIG_REGULATOR_MC13XXX_CORE) +=  mc13xxx-regulator-core.o

obj-$(CONFIG_REGULATOR_MT6397)	+= mt6397-regulator.o

obj-$(CONFIG_REGULATOR_QCOM_RPM) += qcom_rpm-regulator.o

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

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

drivers/regulator/core.c

+35 −77
Original line number Diff line number Diff line
@@ -634,23 +634,32 @@ static DEVICE_ATTR(bypass, 0444, 


/* Calculate the new optimum regulator operating mode based on the new total

 * consumer load. All locks held by caller */

static void drms_uA_update(struct regulator_dev *rdev)

static int drms_uA_update(struct regulator_dev *rdev)

{

	struct regulator *sibling;

	int current_uA = 0, output_uV, input_uV, err;

	unsigned int mode;



	/*

	 * first check to see if we can set modes at all, otherwise just

	 * tell the consumer everything is OK.

	 */

	err = regulator_check_drms(rdev);

	if (err < 0 || !rdev->desc->ops->get_optimum_mode ||

	    (!rdev->desc->ops->get_voltage &&

	     !rdev->desc->ops->get_voltage_sel) ||

	    !rdev->desc->ops->set_mode)

		return;

	if (err < 0)

		return 0;



	if (!rdev->desc->ops->get_optimum_mode)

		return 0;



	if (!rdev->desc->ops->set_mode)

		return -EINVAL;



	/* get output voltage */

	output_uV = _regulator_get_voltage(rdev);

	if (output_uV <= 0)

		return;

	if (output_uV <= 0) {

		rdev_err(rdev, "invalid output voltage found\n");

		return -EINVAL;

	}



	/* get input voltage */

	input_uV = 0;
@@ -658,8 +667,10 @@ static void drms_uA_update(struct regulator_dev *rdev) 
		input_uV = regulator_get_voltage(rdev->supply);

	if (input_uV <= 0)

		input_uV = rdev->constraints->input_uV;

	if (input_uV <= 0)

		return;

	if (input_uV <= 0) {

		rdev_err(rdev, "invalid input voltage found\n");

		return -EINVAL;

	}



	/* calc total requested load */

	list_for_each_entry(sibling, &rdev->consumer_list, list)
@@ -671,8 +682,17 @@ static void drms_uA_update(struct regulator_dev *rdev) 


	/* check the new mode is allowed */

	err = regulator_mode_constrain(rdev, &mode);

	if (err == 0)

		rdev->desc->ops->set_mode(rdev, mode);

	if (err < 0) {

		rdev_err(rdev, "failed to get optimum mode @ %d uA %d -> %d uV\n",

			 current_uA, input_uV, output_uV);

		return err;

	}



	err = rdev->desc->ops->set_mode(rdev, mode);

	if (err < 0)

		rdev_err(rdev, "failed to set optimum mode %x\n", mode);



	return err;

}



static int suspend_set_state(struct regulator_dev *rdev,
@@ -3002,75 +3022,13 @@ EXPORT_SYMBOL_GPL(regulator_get_mode); 
int regulator_set_optimum_mode(struct regulator *regulator, int uA_load)

{

	struct regulator_dev *rdev = regulator->rdev;

	struct regulator *consumer;

	int ret, output_uV, input_uV = 0, total_uA_load = 0;

	unsigned int mode;



	if (rdev->supply)

		input_uV = regulator_get_voltage(rdev->supply);

	int ret;



	mutex_lock(&rdev->mutex);



	/*

	 * first check to see if we can set modes at all, otherwise just

	 * tell the consumer everything is OK.

	 */

	regulator->uA_load = uA_load;

	ret = regulator_check_drms(rdev);

	if (ret < 0) {

		ret = 0;

		goto out;

	}



	if (!rdev->desc->ops->get_optimum_mode)

		goto out;



	/*

	 * we can actually do this so any errors are indicators of

	 * potential real failure.

	 */

	ret = -EINVAL;



	if (!rdev->desc->ops->set_mode)

		goto out;



	/* get output voltage */

	output_uV = _regulator_get_voltage(rdev);

	if (output_uV <= 0) {

		rdev_err(rdev, "invalid output voltage found\n");

		goto out;

	}



	/* No supply? Use constraint voltage */

	if (input_uV <= 0)

		input_uV = rdev->constraints->input_uV;

	if (input_uV <= 0) {

		rdev_err(rdev, "invalid input voltage found\n");

		goto out;

	}



	/* calc total requested load for this regulator */

	list_for_each_entry(consumer, &rdev->consumer_list, list)

		total_uA_load += consumer->uA_load;



	mode = rdev->desc->ops->get_optimum_mode(rdev,

						 input_uV, output_uV,

						 total_uA_load);

	ret = regulator_mode_constrain(rdev, &mode);

	if (ret < 0) {

		rdev_err(rdev, "failed to get optimum mode @ %d uA %d -> %d uV\n",

			 total_uA_load, input_uV, output_uV);

		goto out;

	}



	ret = rdev->desc->ops->set_mode(rdev, mode);

	if (ret < 0) {

		rdev_err(rdev, "failed to set optimum mode %x\n", mode);

		goto out;

	}

	ret = mode;

out:

	ret = drms_uA_update(rdev);

	mutex_unlock(&rdev->mutex);



	return ret;

}

EXPORT_SYMBOL_GPL(regulator_set_optimum_mode);