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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-20 17:22:19 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-20 17:22:19 (GMT) |
commit | 8909ff652ddfc83ecdf450f96629c25489d88f77 (patch) | |
tree | 01023e82481e027b7454e97ac2500d214b6cff08 /Documentation | |
parent | 88cff241596f29122e9125a41b20d21dfed873cd (diff) | |
parent | 2730fd82cbb922e6be8df08ba32c21be41757d3d (diff) | |
download | linux-fsl-qoriq-8909ff652ddfc83ecdf450f96629c25489d88f77.tar.xz |
Merge tag 'regulator-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"A fairly quiet release for the regulator API, the bulk of the changes
being lots of small cleanups and API updates contributed by Axel Lin
with just a small set of larger changes:
- New driver for LP8755
- DT support for S5M8767, TPS51632, TPS6507x and TPS65090
- Support for writing a "commit changes" bit in the regmap helper
functions."
* tag 'regulator-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (60 commits)
regulator: Fix memory garbage dev_err printout.
regulator: max77686: Reuse rdev_get_id() function.
regulator: tps51632: Use regulator_[get|set]_voltage_sel_regmap
regulator: as3711: Fix checking if no platform initialization data
regulator: s5m8767: Prevent possible NULL pointer dereference
regulator: s5m8767: Fix dev argument for devm_kzalloc and of_get_regulator_init_data
regulator: core: Optimize _regulator_do_set_voltage if voltage does not change
regulator: max8998: Let regulator core handle the case selector == old_selector
regulator: s5m8767: Use of_get_child_count()
regulator: anatop: improve precision of delay time
regulator: show state for GPIO-controlled regulators
regulator: s5m8767: Fix build in non-DT case
regulator: add device tree support for s5m8767
regulator: palmas: Remove a redundant setting for warm_reset
regulator: mc13xxx: Use of_get_child_count()
regulator: max8997: Use of_get_child_count()
regulator: tps65090: Fix using wrong dev argument for calling of_regulator_match
regulators: anatop: add set_voltage_time_sel interface
regulator: Add missing of_node_put()
regulator: tps6507x: Fix using wrong dev argument for calling of_regulator_match
...
Diffstat (limited to 'Documentation')
4 files changed, 278 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mfd/tps6507x.txt b/Documentation/devicetree/bindings/mfd/tps6507x.txt new file mode 100755 index 0000000..8fffa3c --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/tps6507x.txt @@ -0,0 +1,91 @@ +TPS6507x Power Management Integrated Circuit + +Required properties: +- compatible: "ti,tps6507x" +- reg: I2C slave address +- regulators: This is the list of child nodes that specify the regulator + initialization data for defined regulators. Not all regulators for the + given device need to be present. The definition for each of these nodes + is defined using the standard binding for regulators found at + Documentation/devicetree/bindings/regulator/regulator.txt. + The regulator is matched with the regulator-compatible. + + The valid regulator-compatible values are: + tps6507x: vdcdc1, vdcdc2, vdcdc3, vldo1, vldo2 +- xxx-supply: Input voltage supply regulator. + These entries are required if regulators are enabled for a device. + Missing of these properties can cause the regulator registration + fails. + If some of input supply is powered through battery or always-on + supply then also it is require to have these parameters with proper + node handle of always on power supply. + tps6507x: + vindcdc1_2-supply: VDCDC1 and VDCDC2 input. + vindcdc3-supply : VDCDC3 input. + vldo1_2-supply : VLDO1 and VLDO2 input. + +Regulator Optional properties: +- defdcdc_default: It's property of DCDC2 and DCDC3 regulators. + 0: If defdcdc pin of DCDC2/DCDC3 is pulled to GND. + 1: If defdcdc pin of DCDC2/DCDC3 is driven HIGH. + If this property is not defined, it defaults to 0 (not enabled). + +Example: + + pmu: tps6507x@48 { + compatible = "ti,tps6507x"; + reg = <0x48>; + + vindcdc1_2-supply = <&vbat>; + vindcdc3-supply = <...>; + vinldo1_2-supply = <...>; + + regulators { + #address-cells = <1>; + #size-cells = <0>; + + vdcdc1_reg: regulator@0 { + regulator-compatible = "VDCDC1"; + reg = <0>; + regulator-min-microvolt = <3150000>; + regulator-max-microvolt = <3450000>; + regulator-always-on; + regulator-boot-on; + }; + vdcdc2_reg: regulator@1 { + regulator-compatible = "VDCDC2"; + reg = <1>; + regulator-min-microvolt = <1710000>; + regulator-max-microvolt = <3450000>; + regulator-always-on; + regulator-boot-on; + defdcdc_default = <1>; + }; + vdcdc3_reg: regulator@2 { + regulator-compatible = "VDCDC3"; + reg = <2>; + regulator-min-microvolt = <950000> + regulator-max-microvolt = <1350000>; + regulator-always-on; + regulator-boot-on; + defdcdc_default = <1>; + }; + ldo1_reg: regulator@3 { + regulator-compatible = "LDO1"; + reg = <3>; + regulator-min-microvolt = <1710000>; + regulator-max-microvolt = <1890000>; + regulator-always-on; + regulator-boot-on; + }; + ldo2_reg: regulator@4 { + regulator-compatible = "LDO2"; + reg = <4>; + regulator-min-microvolt = <1140000>; + regulator-max-microvolt = <1320000>; + regulator-always-on; + regulator-boot-on; + }; + }; + + }; diff --git a/Documentation/devicetree/bindings/regulator/anatop-regulator.txt b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt index 357758c..758eae2 100644 --- a/Documentation/devicetree/bindings/regulator/anatop-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt @@ -9,6 +9,11 @@ Required properties: - anatop-min-voltage: Minimum voltage of this regulator - anatop-max-voltage: Maximum voltage of this regulator +Optional properties: +- anatop-delay-reg-offset: Anatop MFD step time register offset +- anatop-delay-bit-shift: Bit shift for the step time register +- anatop-delay-bit-width: Number of bits used in the step time register + Any property defined as part of the core regulator binding, defined in regulator.txt, can also be used. @@ -23,6 +28,9 @@ Example: anatop-reg-offset = <0x140>; anatop-vol-bit-shift = <9>; anatop-vol-bit-width = <5>; + anatop-delay-reg-offset = <0x170>; + anatop-delay-bit-shift = <24>; + anatop-delay-bit-width = <2>; anatop-min-bit-val = <1>; anatop-min-voltage = <725000>; anatop-max-voltage = <1300000>; diff --git a/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt b/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt new file mode 100644 index 0000000..a35ff99 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt @@ -0,0 +1,152 @@ +* Samsung S5M8767 Voltage and Current Regulator + +The Samsung S5M8767 is a multi-function device which includes volatage and +current regulators, rtc, charger controller and other sub-blocks. It is +interfaced to the host controller using a i2c interface. Each sub-block is +addressed by the host system using different i2c slave address. This document +describes the bindings for 'pmic' sub-block of s5m8767. + +Required properties: +- compatible: Should be "samsung,s5m8767-pmic". +- reg: Specifies the i2c slave address of the pmic block. It should be 0x66. + +- s5m8767,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV) + units for buck2 when changing voltage using gpio dvs. Refer to [1] below + for additional information. + +- s5m8767,pmic-buck3-dvs-voltage: A set of 8 voltage values in micro-volt (uV) + units for buck3 when changing voltage using gpio dvs. Refer to [1] below + for additional information. + +- s5m8767,pmic-buck4-dvs-voltage: A set of 8 voltage values in micro-volt (uV) + units for buck4 when changing voltage using gpio dvs. Refer to [1] below + for additional information. + +- s5m8767,pmic-buck-ds-gpios: GPIO specifiers for three host gpio's used + for selecting GPIO DVS lines. It is one-to-one mapped to dvs gpio lines. + +[1] If none of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional + property is specified, the 's5m8767,pmic-buck[2/3/4]-dvs-voltage' + property should specify atleast one voltage level (which would be a + safe operating voltage). + + If either of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional + property is specified, then all the eight voltage values for the + 's5m8767,pmic-buck[2/3/4]-dvs-voltage' should be specified. + +Optional properties: +- interrupt-parent: Specifies the phandle of the interrupt controller to which + the interrupts from s5m8767 are delivered to. +- interrupts: Interrupt specifiers for two interrupt sources. + - First interrupt specifier is for 'irq1' interrupt. + - Second interrupt specifier is for 'alert' interrupt. +- s5m8767,pmic-buck2-uses-gpio-dvs: 'buck2' can be controlled by gpio dvs. +- s5m8767,pmic-buck3-uses-gpio-dvs: 'buck3' can be controlled by gpio dvs. +- s5m8767,pmic-buck4-uses-gpio-dvs: 'buck4' can be controlled by gpio dvs. + +Additional properties required if either of the optional properties are used: + +- s5m8767,pmic-buck234-default-dvs-idx: Default voltage setting selected from + the possible 8 options selectable by the dvs gpios. The value of this + property should be between 0 and 7. If not specified or if out of range, the + default value of this property is set to 0. + +- s5m8767,pmic-buck-dvs-gpios: GPIO specifiers for three host gpio's used + for dvs. The format of the gpio specifier depends in the gpio controller. + +Regulators: The regulators of s5m8767 that have to be instantiated should be +included in a sub-node named 'regulators'. Regulator nodes included in this +sub-node should be of the format as listed below. + + regulator_name { + ldo1_reg: LDO1 { + regulator-name = "VDD_ALIVE_1.0V"; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1100000>; + regulator-always-on; + regulator-boot-on; + op_mode = <1>; /* Normal Mode */ + }; + }; +The above regulator entries are defined in regulator bindings documentation +except op_mode description. + - op_mode: describes the different operating modes of the LDO's with + power mode change in SOC. The different possible values are, + 0 - always off mode + 1 - on in normal mode + 2 - low power mode + 3 - suspend mode + +The following are the names of the regulators that the s5m8767 pmic block +supports. Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number +as per the datasheet of s5m8767. + + - LDOn + - valid values for n are 1 to 28 + - Example: LDO0, LD01, LDO28 + - BUCKn + - valid values for n are 1 to 9. + - Example: BUCK1, BUCK2, BUCK9 + +The bindings inside the regulator nodes use the standard regulator bindings +which are documented elsewhere. + +Example: + + s5m8767_pmic@66 { + compatible = "samsung,s5m8767-pmic"; + reg = <0x66>; + + s5m8767,pmic-buck2-uses-gpio-dvs; + s5m8767,pmic-buck3-uses-gpio-dvs; + s5m8767,pmic-buck4-uses-gpio-dvs; + + s5m8767,pmic-buck-default-dvs-idx = <0>; + + s5m8767,pmic-buck-dvs-gpios = <&gpx0 0 1 0 0>, /* DVS1 */ + <&gpx0 1 1 0 0>, /* DVS2 */ + <&gpx0 2 1 0 0>; /* DVS3 */ + + s5m8767,pmic-buck-ds-gpios = <&gpx2 3 1 0 0>, /* SET1 */ + <&gpx2 4 1 0 0>, /* SET2 */ + <&gpx2 5 1 0 0>; /* SET3 */ + + s5m8767,pmic-buck2-dvs-voltage = <1350000>, <1300000>, + <1250000>, <1200000>, + <1150000>, <1100000>, + <1000000>, <950000>; + + s5m8767,pmic-buck3-dvs-voltage = <1100000>, <1100000>, + <1100000>, <1100000>, + <1000000>, <1000000>, + <1000000>, <1000000>; + + s5m8767,pmic-buck4-dvs-voltage = <1200000>, <1200000>, + <1200000>, <1200000>, + <1200000>, <1200000>, + <1200000>, <1200000>; + + regulators { + ldo1_reg: LDO1 { + regulator-name = "VDD_ABB_3.3V"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + op_mode = <1>; /* Normal Mode */ + }; + + ldo2_reg: LDO2 { + regulator-name = "VDD_ALIVE_1.1V"; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1100000>; + regulator-always-on; + }; + + buck1_reg: BUCK1 { + regulator-name = "VDD_MIF_1.2V"; + regulator-min-microvolt = <950000>; + regulator-max-microvolt = <1350000>; + regulator-always-on; + regulator-boot-on; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/regulator/tps51632-regulator.txt b/Documentation/devicetree/bindings/regulator/tps51632-regulator.txt new file mode 100644 index 0000000..2f7e44a --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/tps51632-regulator.txt @@ -0,0 +1,27 @@ +TPS51632 Voltage regulators + +Required properties: +- compatible: Must be "ti,tps51632" +- reg: I2C slave address + +Optional properties: +- ti,enable-pwm-dvfs: Enable the DVFS voltage control through the PWM interface. +- ti,dvfs-step-20mV: The 20mV step voltage when PWM DVFS enabled. Missing this + will set 10mV step voltage in PWM DVFS mode. In normal mode, the voltage + step is 10mV as per datasheet. + +Any property defined as part of the core regulator binding, defined in +regulator.txt, can also be used. + +Example: + + tps51632 { + compatible = "ti,tps51632"; + reg = <0x43>; + regulator-name = "tps51632-vout"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <1500000>; + regulator-boot-on; + ti,enable-pwm-dvfs; + ti,dvfs-step-20mV; + }; |