forked from Minki/linux
regulator: Updates for v5.20
This has been a fairly quiet release for the regulator API, a few new
drivers and a small API update:
- Support for specifying an initial load as part of requesting
regulators through the bulk API.
- Support for Maxim MAX597x, Qualcomm PM8074, PM8909 and Realtek RT5120
devices.
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Merge tag 'regulator-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This has been a fairly quiet release for the regulator API, a few new
drivers and a small API update:
- Support for specifying an initial load as part of requesting
regulators through the bulk API
- Support for Maxim MAX597x, Qualcomm PM8074, PM8909 and Realtek
RT5120 devices"
* tag 'regulator-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (35 commits)
regulator: core: Allow drivers to define their init data as const
regulator: core: Allow specifying an initial load w/ the bulk API
regulator: mt6380: Fix unused array warning
regulator: Add missing type for 'regulator-microvolt-offset'
regulator: core: Fix off-on-delay-us for always-on/boot-on regulators
regulator: of: Fix refcount leak bug in of_get_regulation_constraints()
regulator: pwm: Update Lee Jones' email address
regulator: max597x: Don't return uninitialized variable in .probe
regulator: qcom,spmi-regulator: add PMP8074 PMIC
regulator: qcom,spmi-regulator: Convert to dtschema
regulator: qcom_spmi: add support for PMP8074 regulators
regulator: qcom_spmi: add support for HT_P600
regulator: qcom_spmi: add support for HT_P150
regulator: max597x: Remove unused including <linux/version.h>
regulator: Fix MFD_MAX597X dependency
regulator: Fix parameter declaration and spelling mistake.
regulator: max597x: Add support for max597x regulator
regulator: scmi: Add missing of_node_get()
regulator: qcom_smd: Add PM8909 RPM regulators
regulator: dt-bindings: qcom,smd-rpm: Add PM8909
...
This commit is contained in:
Linus Torvalds
commit
416e05e5b7
@ -15,6 +15,7 @@ properties:
|
||||
compatible:
|
||||
enum:
|
||||
- mps,mp5416
|
||||
- mps,mp5496
|
||||
|
||||
reg:
|
||||
maxItems: 1
|
||||
|
||||
@ -1,92 +0,0 @@
|
||||
Bindings for the Generic PWM Regulator
|
||||
======================================
|
||||
|
||||
Currently supports 2 modes of operation:
|
||||
|
||||
Voltage Table: When in this mode, a voltage table (See below) of
|
||||
predefined voltage <=> duty-cycle values must be
|
||||
provided via DT. Limitations are that the regulator can
|
||||
only operate at the voltages supplied in the table.
|
||||
Intermediary duty-cycle values which would normally
|
||||
allow finer grained voltage selection are ignored and
|
||||
rendered useless. Although more control is given to
|
||||
the user if the assumptions made in continuous-voltage
|
||||
mode do not reign true.
|
||||
|
||||
Continuous Voltage: This mode uses the regulator's maximum and minimum
|
||||
supplied voltages specified in the
|
||||
regulator-{min,max}-microvolt properties to calculate
|
||||
appropriate duty-cycle values. This allows for a much
|
||||
more fine grained solution when compared with
|
||||
voltage-table mode above. This solution does make an
|
||||
assumption that a %50 duty-cycle value will cause the
|
||||
regulator voltage to run at half way between the
|
||||
supplied max_uV and min_uV values.
|
||||
|
||||
Required properties:
|
||||
--------------------
|
||||
- compatible: Should be "pwm-regulator"
|
||||
|
||||
- pwms: PWM specification (See: ../pwm/pwm.txt)
|
||||
|
||||
Only required for Voltage Table Mode:
|
||||
- voltage-table: Voltage and Duty-Cycle table consisting of 2 cells
|
||||
First cell is voltage in microvolts (uV)
|
||||
Second cell is duty-cycle in percent (%)
|
||||
|
||||
Optional properties for Continuous mode:
|
||||
- pwm-dutycycle-unit: Integer value encoding the duty cycle unit. If not
|
||||
defined, <100> is assumed, meaning that
|
||||
pwm-dutycycle-range contains values expressed in
|
||||
percent.
|
||||
|
||||
- pwm-dutycycle-range: Should contain 2 entries. The first entry is encoding
|
||||
the dutycycle for regulator-min-microvolt and the
|
||||
second one the dutycycle for regulator-max-microvolt.
|
||||
Duty cycle values are expressed in pwm-dutycycle-unit.
|
||||
If not defined, <0 100> is assumed.
|
||||
|
||||
NB: To be clear, if voltage-table is provided, then the device will be used
|
||||
in Voltage Table Mode. If no voltage-table is provided, then the device will
|
||||
be used in Continuous Voltage Mode.
|
||||
|
||||
Optional properties:
|
||||
--------------------
|
||||
- enable-gpios: GPIO to use to enable/disable the regulator
|
||||
|
||||
Any property defined as part of the core regulator binding can also be used.
|
||||
(See: ../regulator/regulator.txt)
|
||||
|
||||
Continuous Voltage With Enable GPIO Example:
|
||||
pwm_regulator {
|
||||
compatible = "pwm-regulator";
|
||||
pwms = <&pwm1 0 8448 0>;
|
||||
enable-gpios = <&gpio0 23 GPIO_ACTIVE_HIGH>;
|
||||
regulator-min-microvolt = <1016000>;
|
||||
regulator-max-microvolt = <1114000>;
|
||||
regulator-name = "vdd_logic";
|
||||
/* unit == per-mille */
|
||||
pwm-dutycycle-unit = <1000>;
|
||||
/*
|
||||
* Inverted PWM logic, and the duty cycle range is limited
|
||||
* to 30%-70%.
|
||||
*/
|
||||
pwm-dutycycle-range = <700 300>; /* */
|
||||
};
|
||||
|
||||
Voltage Table Example:
|
||||
pwm_regulator {
|
||||
compatible = "pwm-regulator";
|
||||
pwms = <&pwm1 0 8448 0>;
|
||||
regulator-min-microvolt = <1016000>;
|
||||
regulator-max-microvolt = <1114000>;
|
||||
regulator-name = "vdd_logic";
|
||||
|
||||
/* Voltage Duty-Cycle */
|
||||
voltage-table = <1114000 0>,
|
||||
<1095000 10>,
|
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<1076000 20>,
|
||||
<1056000 30>,
|
||||
<1036000 40>,
|
||||
<1016000 50>;
|
||||
};
|
||||
126
Documentation/devicetree/bindings/regulator/pwm-regulator.yaml
Normal file
126
Documentation/devicetree/bindings/regulator/pwm-regulator.yaml
Normal file
@ -0,0 +1,126 @@
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
%YAML 1.2
|
||||
---
|
||||
$id: http://devicetree.org/schemas/regulator/pwm-regulator.yaml#
|
||||
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||||
|
||||
title: Bindings for the Generic PWM Regulator
|
||||
|
||||
maintainers:
|
||||
- Brian Norris <briannorris@chromium.org>
|
||||
- Lee Jones <lee@kernel.org>
|
||||
- Alexandre Courbot <acourbot@nvidia.com>
|
||||
|
||||
description: |
|
||||
Currently supports 2 modes of operation:
|
||||
|
||||
Voltage Table:
|
||||
When in this mode, a voltage table (See below) of predefined voltage <=>
|
||||
duty-cycle values must be provided via DT. Limitations are that the
|
||||
regulator can only operate at the voltages supplied in the table.
|
||||
Intermediary duty-cycle values which would normally allow finer grained
|
||||
voltage selection are ignored and rendered useless. Although more control
|
||||
is given to the user if the assumptions made in continuous-voltage mode do
|
||||
not reign true.
|
||||
|
||||
Continuous Voltage:
|
||||
This mode uses the regulator's maximum and minimum supplied voltages
|
||||
specified in the regulator-{min,max}-microvolt properties to calculate
|
||||
appropriate duty-cycle values. This allows for a much more fine grained
|
||||
solution when compared with voltage-table mode above. This solution does
|
||||
make an assumption that a %50 duty-cycle value will cause the regulator
|
||||
voltage to run at half way between the supplied max_uV and min_uV values.
|
||||
|
||||
If voltage-table is provided, then the device will be used in Voltage Table
|
||||
Mode. If no voltage-table is provided, then the device will be used in
|
||||
Continuous Voltage Mode.
|
||||
|
||||
allOf:
|
||||
- $ref: regulator.yaml#
|
||||
|
||||
properties:
|
||||
compatible:
|
||||
const: pwm-regulator
|
||||
|
||||
pwms:
|
||||
maxItems: 1
|
||||
|
||||
voltage-table:
|
||||
description: Voltage and Duty-Cycle table.
|
||||
$ref: /schemas/types.yaml#/definitions/uint32-matrix
|
||||
items:
|
||||
items:
|
||||
- description: voltage in microvolts (uV)
|
||||
- description: duty-cycle in percent (%)
|
||||
|
||||
enable-gpios:
|
||||
description: Regulator enable GPIO
|
||||
maxItems: 1
|
||||
|
||||
# Optional properties for Continuous mode:
|
||||
pwm-dutycycle-unit:
|
||||
description:
|
||||
Integer value encoding the duty cycle unit. If not
|
||||
defined, <100> is assumed, meaning that
|
||||
pwm-dutycycle-range contains values expressed in
|
||||
percent.
|
||||
default: 100
|
||||
|
||||
pwm-dutycycle-range:
|
||||
description:
|
||||
Should contain 2 entries. The first entry is encoding
|
||||
the dutycycle for regulator-min-microvolt and the
|
||||
second one the dutycycle for regulator-max-microvolt.
|
||||
Duty cycle values are expressed in pwm-dutycycle-unit.
|
||||
If not defined, <0 100> is assumed.
|
||||
$ref: /schemas/types.yaml#/definitions/uint32-array
|
||||
items:
|
||||
- description: the dutycycle for regulator-min-microvolt
|
||||
- description: the dutycycle for regulator-max-microvolt
|
||||
default: [ 0 100 ]
|
||||
|
||||
required:
|
||||
- compatible
|
||||
- pwms
|
||||
|
||||
unevaluatedProperties: false
|
||||
|
||||
examples:
|
||||
- |
|
||||
#include <dt-bindings/gpio/gpio.h>
|
||||
|
||||
// Continuous Voltage With Enable GPIO Example:
|
||||
regulator {
|
||||
compatible = "pwm-regulator";
|
||||
pwms = <&pwm1 0 8448 0>;
|
||||
enable-gpios = <&gpio0 23 GPIO_ACTIVE_HIGH>;
|
||||
regulator-min-microvolt = <1016000>;
|
||||
regulator-max-microvolt = <1114000>;
|
||||
regulator-name = "vdd_logic";
|
||||
/* unit == per-mille */
|
||||
pwm-dutycycle-unit = <1000>;
|
||||
/*
|
||||
* Inverted PWM logic, and the duty cycle range is limited
|
||||
* to 30%-70%.
|
||||
*/
|
||||
pwm-dutycycle-range = <700 300>; /* */
|
||||
};
|
||||
|
||||
- |
|
||||
// Voltage Table Example:
|
||||
regulator {
|
||||
compatible = "pwm-regulator";
|
||||
pwms = <&pwm1 0 8448 0>;
|
||||
regulator-min-microvolt = <1016000>;
|
||||
regulator-max-microvolt = <1114000>;
|
||||
regulator-name = "vdd_logic";
|
||||
|
||||
/* Voltage Duty-Cycle */
|
||||
voltage-table = <1114000 0>,
|
||||
<1095000 10>,
|
||||
<1076000 20>,
|
||||
<1056000 30>,
|
||||
<1036000 40>,
|
||||
<1016000 50>;
|
||||
};
|
||||
...
|
||||
@ -30,6 +30,9 @@ description:
|
||||
|
||||
For pm8841, s1, s2, s3, s4, s5, s6, s7, s8
|
||||
|
||||
For pm8909, s1, s2, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13,
|
||||
l14, l15, l17, l18
|
||||
|
||||
For pm8916, s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11,
|
||||
l12, l13, l14, l15, l16, l17, l18
|
||||
|
||||
@ -78,6 +81,7 @@ properties:
|
||||
- qcom,rpm-mp5496-regulators
|
||||
- qcom,rpm-pm8226-regulators
|
||||
- qcom,rpm-pm8841-regulators
|
||||
- qcom,rpm-pm8909-regulators
|
||||
- qcom,rpm-pm8916-regulators
|
||||
- qcom,rpm-pm8941-regulators
|
||||
- qcom,rpm-pm8950-regulators
|
||||
|
||||
@ -1,347 +0,0 @@
|
||||
Qualcomm SPMI Regulators
|
||||
|
||||
- compatible:
|
||||
Usage: required
|
||||
Value type: <string>
|
||||
Definition: must be one of:
|
||||
"qcom,pm8004-regulators"
|
||||
"qcom,pm8005-regulators"
|
||||
"qcom,pm8226-regulators"
|
||||
"qcom,pm8841-regulators"
|
||||
"qcom,pm8916-regulators"
|
||||
"qcom,pm8941-regulators"
|
||||
"qcom,pm8950-regulators"
|
||||
"qcom,pm8994-regulators"
|
||||
"qcom,pmi8994-regulators"
|
||||
"qcom,pm660-regulators"
|
||||
"qcom,pm660l-regulators"
|
||||
"qcom,pms405-regulators"
|
||||
|
||||
- interrupts:
|
||||
Usage: optional
|
||||
Value type: <prop-encoded-array>
|
||||
Definition: List of OCP interrupts.
|
||||
|
||||
- interrupt-names:
|
||||
Usage: required if 'interrupts' property present
|
||||
Value type: <string-array>
|
||||
Definition: List of strings defining the names of the
|
||||
interrupts in the 'interrupts' property 1-to-1.
|
||||
Supported values are "ocp-<regulator_name>", where
|
||||
<regulator_name> corresponds to a voltage switch
|
||||
type regulator.
|
||||
|
||||
- vdd_s1-supply:
|
||||
- vdd_s2-supply:
|
||||
- vdd_s3-supply:
|
||||
- vdd_s4-supply:
|
||||
- vdd_s5-supply:
|
||||
- vdd_s6-supply:
|
||||
- vdd_s7-supply:
|
||||
- vdd_s8-supply:
|
||||
Usage: optional (pm8841 only)
|
||||
Value type: <phandle>
|
||||
Definition: Reference to regulator supplying the input pin, as
|
||||
described in the data sheet.
|
||||
|
||||
- vdd_s1-supply:
|
||||
- vdd_s2-supply:
|
||||
- vdd_s3-supply:
|
||||
- vdd_s4-supply:
|
||||
- vdd_l1_l3-supply:
|
||||
- vdd_l2-supply:
|
||||
- vdd_l4_l5_l6-supply:
|
||||
- vdd_l7-supply:
|
||||
- vdd_l8_l11_l14_l15_l16-supply:
|
||||
- vdd_l9_l10_l12_l13_l17_l18-supply:
|
||||
Usage: optional (pm8916 only)
|
||||
Value type: <phandle>
|
||||
Definition: Reference to regulator supplying the input pin, as
|
||||
described in the data sheet.
|
||||
|
||||
- vdd_s1-supply:
|
||||
- vdd_s2-supply:
|
||||
- vdd_s3-supply:
|
||||
- vdd_l1_l3-supply:
|
||||
- vdd_l2_lvs_1_2_3-supply:
|
||||
- vdd_l4_l11-supply:
|
||||
- vdd_l5_l7-supply:
|
||||
- vdd_l6_l12_l14_l15-supply:
|
||||
- vdd_l8_l16_l18_19-supply:
|
||||
- vdd_l9_l10_l17_l22-supply:
|
||||
- vdd_l13_l20_l23_l24-supply:
|
||||
- vdd_l21-supply:
|
||||
- vin_5vs-supply:
|
||||
Usage: optional (pm8941 only)
|
||||
Value type: <phandle>
|
||||
Definition: Reference to regulator supplying the input pin, as
|
||||
described in the data sheet.
|
||||
|
||||
- vdd_s1-supply:
|
||||
- vdd_s2-supply:
|
||||
- vdd_s3-supply:
|
||||
- vdd_s4-supply:
|
||||
- vdd_s4-supply:
|
||||
- vdd_s5-supply:
|
||||
- vdd_s6-supply:
|
||||
- vdd_l1_l19-supply:
|
||||
- vdd_l2_l23-supply:
|
||||
- vdd_l3-supply:
|
||||
- vdd_l4_l5_l6_l7_l16-supply:
|
||||
- vdd_l8_l11_l12_l17_l22-supply:
|
||||
- vdd_l9_l10_l13_l14_l15_l18-supply:
|
||||
- vdd_l20-supply:
|
||||
- vdd_l21-supply:
|
||||
Usage: optional (pm8950 only)
|
||||
Value type: <phandle>
|
||||
Definition: reference to regulator supplying the input pin, as
|
||||
described in the data sheet
|
||||
|
||||
- vdd_s1-supply:
|
||||
- vdd_s2-supply:
|
||||
- vdd_s3-supply:
|
||||
- vdd_s4-supply:
|
||||
- vdd_s5-supply:
|
||||
- vdd_s6-supply:
|
||||
- vdd_s7-supply:
|
||||
- vdd_s8-supply:
|
||||
- vdd_s9-supply:
|
||||
- vdd_s10-supply:
|
||||
- vdd_s11-supply:
|
||||
- vdd_s12-supply:
|
||||
- vdd_l1-supply:
|
||||
- vdd_l2_l26_l28-supply:
|
||||
- vdd_l3_l11-supply:
|
||||
- vdd_l4_l27_l31-supply:
|
||||
- vdd_l5_l7-supply:
|
||||
- vdd_l6_l12_l32-supply:
|
||||
- vdd_l8_l16_l30-supply:
|
||||
- vdd_l9_l10_l18_l22-supply:
|
||||
- vdd_l13_l19_l23_l24-supply:
|
||||
- vdd_l14_l15-supply:
|
||||
- vdd_l17_l29-supply:
|
||||
- vdd_l20_l21-supply:
|
||||
- vdd_l25-supply:
|
||||
- vdd_lvs_1_2-supply:
|
||||
Usage: optional (pm8994 only)
|
||||
Value type: <phandle>
|
||||
Definition: Reference to regulator supplying the input pin, as
|
||||
described in the data sheet.
|
||||
|
||||
- vdd_s1-supply:
|
||||
- vdd_s2-supply:
|
||||
- vdd_s3-supply:
|
||||
- vdd_l1-supply:
|
||||
Usage: optional (pmi8994 only)
|
||||
Value type: <phandle>
|
||||
Definition: Reference to regulator supplying the input pin, as
|
||||
described in the data sheet.
|
||||
|
||||
- vdd_l1_l6_l7-supply:
|
||||
- vdd_l2_l3-supply:
|
||||
- vdd_l5-supply:
|
||||
- vdd_l8_l9_l10_l11_l12_l13_l14-supply:
|
||||
- vdd_l15_l16_l17_l18_l19-supply:
|
||||
- vdd_s1-supply:
|
||||
- vdd_s2-supply:
|
||||
- vdd_s3-supply:
|
||||
- vdd_s5-supply:
|
||||
- vdd_s6-supply:
|
||||
Usage: optional (pm660 only)
|
||||
Value type: <phandle>
|
||||
Definition: Reference to regulator supplying the input pin, as
|
||||
described in the data sheet.
|
||||
|
||||
- vdd_l1_l9_l10-supply:
|
||||
- vdd_l2-supply:
|
||||
- vdd_l3_l5_l7_l8-supply:
|
||||
- vdd_l4_l6-supply:
|
||||
- vdd_s1-supply:
|
||||
- vdd_s2-supply:
|
||||
- vdd_s3-supply:
|
||||
- vdd_s4-supply:
|
||||
- vdd_s5-supply:
|
||||
Usage: optional (pm660l only)
|
||||
Value type: <phandle>
|
||||
Definition: Reference to regulator supplying the input pin, as
|
||||
described in the data sheet.
|
||||
|
||||
- vdd_l1_l2-supply:
|
||||
- vdd_l3_l8-supply:
|
||||
- vdd_l4-supply:
|
||||
- vdd_l5_l6-supply:
|
||||
- vdd_l10_l11_l12_l13-supply:
|
||||
- vdd_l7-supply:
|
||||
- vdd_l9-supply:
|
||||
- vdd_s1-supply:
|
||||
- vdd_s2-supply:
|
||||
- vdd_s3-supply:
|
||||
- vdd_s4-supply:
|
||||
- vdd_s5-supply
|
||||
Usage: optional (pms405 only)
|
||||
Value type: <phandle>
|
||||
Definition: Reference to regulator supplying the input pin, as
|
||||
described in the data sheet.
|
||||
|
||||
- qcom,saw-reg:
|
||||
Usage: optional
|
||||
Value type: <phandle>
|
||||
Description: Reference to syscon node defining the SAW registers.
|
||||
|
||||
|
||||
The regulator node houses sub-nodes for each regulator within the device. Each
|
||||
sub-node is identified using the node's name, with valid values listed for each
|
||||
of the PMICs below.
|
||||
|
||||
pm8004:
|
||||
s2, s5
|
||||
|
||||
pm8005:
|
||||
s1, s2, s3, s4
|
||||
|
||||
pm8841:
|
||||
s1, s2, s3, s4, s5, s6, s7, s8
|
||||
|
||||
pm8916:
|
||||
s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13,
|
||||
l14, l15, l16, l17, l18
|
||||
|
||||
pm8941:
|
||||
s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13,
|
||||
l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, lvs1, lvs2, lvs3,
|
||||
5vs1, 5vs2
|
||||
|
||||
pm8994:
|
||||
s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, l1, l2, l3, l4, l5,
|
||||
l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19, l20,
|
||||
l21, l22, l23, l24, l25, l26, l27, l28, l29, l30, l31, l32, lvs1, lvs2
|
||||
|
||||
pmi8994:
|
||||
s1, s2, s3, l1
|
||||
|
||||
The content of each sub-node is defined by the standard binding for regulators -
|
||||
see regulator.txt - with additional custom properties described below:
|
||||
|
||||
- regulator-initial-mode:
|
||||
Usage: optional
|
||||
Value type: <u32>
|
||||
Description: 2 = Set initial mode to auto mode (automatically select
|
||||
between HPM and LPM); not available on boost type
|
||||
regulators.
|
||||
|
||||
1 = Set initial mode to high power mode (HPM), also referred
|
||||
to as NPM. HPM consumes more ground current than LPM, but
|
||||
it can source significantly higher load current. HPM is not
|
||||
available on boost type regulators. For voltage switch type
|
||||
regulators, HPM implies that over current protection and
|
||||
soft start are active all the time.
|
||||
|
||||
0 = Set initial mode to low power mode (LPM).
|
||||
|
||||
- qcom,ocp-max-retries:
|
||||
Usage: optional
|
||||
Value type: <u32>
|
||||
Description: Maximum number of times to try toggling a voltage switch
|
||||
off and back on as a result of consecutive over current
|
||||
events.
|
||||
|
||||
- qcom,ocp-retry-delay:
|
||||
Usage: optional
|
||||
Value type: <u32>
|
||||
Description: Time to delay in milliseconds between each voltage switch
|
||||
toggle after an over current event takes place.
|
||||
|
||||
- qcom,pin-ctrl-enable:
|
||||
Usage: optional
|
||||
Value type: <u32>
|
||||
Description: Bit mask specifying which hardware pins should be used to
|
||||
enable the regulator, if any; supported bits are:
|
||||
0 = ignore all hardware enable signals
|
||||
BIT(0) = follow HW0_EN signal
|
||||
BIT(1) = follow HW1_EN signal
|
||||
BIT(2) = follow HW2_EN signal
|
||||
BIT(3) = follow HW3_EN signal
|
||||
|
||||
- qcom,pin-ctrl-hpm:
|
||||
Usage: optional
|
||||
Value type: <u32>
|
||||
Description: Bit mask specifying which hardware pins should be used to
|
||||
force the regulator into high power mode, if any;
|
||||
supported bits are:
|
||||
0 = ignore all hardware enable signals
|
||||
BIT(0) = follow HW0_EN signal
|
||||
BIT(1) = follow HW1_EN signal
|
||||
BIT(2) = follow HW2_EN signal
|
||||
BIT(3) = follow HW3_EN signal
|
||||
BIT(4) = follow PMIC awake state
|
||||
|
||||
- qcom,vs-soft-start-strength:
|
||||
Usage: optional
|
||||
Value type: <u32>
|
||||
Description: This property sets the soft start strength for voltage
|
||||
switch type regulators; supported values are:
|
||||
0 = 0.05 uA
|
||||
1 = 0.25 uA
|
||||
2 = 0.55 uA
|
||||
3 = 0.75 uA
|
||||
|
||||
- qcom,saw-slave:
|
||||
Usage: optional
|
||||
Value type: <boo>
|
||||
Description: SAW controlled gang slave. Will not be configured.
|
||||
|
||||
- qcom,saw-leader:
|
||||
Usage: optional
|
||||
Value type: <boo>
|
||||
Description: SAW controlled gang leader. Will be configured as
|
||||
SAW regulator.
|
||||
|
||||
Example:
|
||||
|
||||
regulators {
|
||||
compatible = "qcom,pm8941-regulators";
|
||||
vdd_l1_l3-supply = <&s1>;
|
||||
|
||||
s1: s1 {
|
||||
regulator-min-microvolt = <1300000>;
|
||||
regulator-max-microvolt = <1400000>;
|
||||
};
|
||||
|
||||
...
|
||||
|
||||
l1: l1 {
|
||||
regulator-min-microvolt = <1225000>;
|
||||
regulator-max-microvolt = <1300000>;
|
||||
};
|
||||
|
||||
....
|
||||
};
|
||||
|
||||
Example 2:
|
||||
|
||||
saw3: syscon@9A10000 {
|
||||
compatible = "syscon";
|
||||
reg = <0x9A10000 0x1000>;
|
||||
};
|
||||
|
||||
...
|
||||
|
||||
spm-regulators {
|
||||
compatible = "qcom,pm8994-regulators";
|
||||
qcom,saw-reg = <&saw3>;
|
||||
s8 {
|
||||
qcom,saw-slave;
|
||||
};
|
||||
s9 {
|
||||
qcom,saw-slave;
|
||||
};
|
||||
s10 {
|
||||
qcom,saw-slave;
|
||||
};
|
||||
pm8994_s11_saw: s11 {
|
||||
qcom,saw-leader;
|
||||
regulator-always-on;
|
||||
regulator-min-microvolt = <900000>;
|
||||
regulator-max-microvolt = <1140000>;
|
||||
};
|
||||
};
|
||||
@ -0,0 +1,323 @@
|
||||
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
|
||||
%YAML 1.2
|
||||
---
|
||||
$id: http://devicetree.org/schemas/regulator/qcom,spmi-regulator.yaml#
|
||||
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||||
|
||||
title: Qualcomm SPMI Regulators
|
||||
|
||||
maintainers:
|
||||
- Robert Marko <robimarko@gmail.com>
|
||||
|
||||
properties:
|
||||
compatible:
|
||||
enum:
|
||||
- qcom,pm660-regulators
|
||||
- qcom,pm660l-regulators
|
||||
- qcom,pm8004-regulators
|
||||
- qcom,pm8005-regulators
|
||||
- qcom,pm8226-regulators
|
||||
- qcom,pm8841-regulators
|
||||
- qcom,pm8916-regulators
|
||||
- qcom,pm8941-regulators
|
||||
- qcom,pm8950-regulators
|
||||
- qcom,pm8994-regulators
|
||||
- qcom,pmi8994-regulators
|
||||
- qcom,pmp8074-regulators
|
||||
- qcom,pms405-regulators
|
||||
|
||||
qcom,saw-reg:
|
||||
description: Reference to syscon node defining the SAW registers
|
||||
$ref: /schemas/types.yaml#/definitions/phandle
|
||||
|
||||
patternProperties:
|
||||
"^(5vs[1-2]|(l|s)[1-9][0-9]?|lvs[1-3])$":
|
||||
description: List of regulators and its properties
|
||||
type: object
|
||||
$ref: regulator.yaml#
|
||||
|
||||
properties:
|
||||
qcom,ocp-max-retries:
|
||||
description:
|
||||
Maximum number of times to try toggling a voltage switch off and
|
||||
back on as a result of consecutive over current events
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
|
||||
qcom,ocp-retry-delay:
|
||||
description:
|
||||
Time to delay in milliseconds between each voltage switch toggle
|
||||
after an over current event takes place
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
|
||||
qcom,pin-ctrl-enable:
|
||||
description:
|
||||
Bit mask specifying which hardware pins should be used to enable the
|
||||
regulator, if any.
|
||||
Supported bits are
|
||||
0 = ignore all hardware enable signals
|
||||
BIT(0) = follow HW0_EN signal
|
||||
BIT(1) = follow HW1_EN signal
|
||||
BIT(2) = follow HW2_EN signal
|
||||
BIT(3) = follow HW3_EN signal
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 15
|
||||
|
||||
qcom,pin-ctrl-hpm:
|
||||
description:
|
||||
Bit mask specifying which hardware pins should be used to force the
|
||||
regulator into high power mode, if any.
|
||||
Supported bits are
|
||||
0 = ignore all hardware enable signals
|
||||
BIT(0) = follow HW0_EN signal
|
||||
BIT(1) = follow HW1_EN signal
|
||||
BIT(2) = follow HW2_EN signal
|
||||
BIT(3) = follow HW3_EN signal
|
||||
BIT(4) = follow PMIC awake state
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 31
|
||||
|
||||
qcom,vs-soft-start-strength:
|
||||
description:
|
||||
This property sets the soft start strength for voltage switch type
|
||||
regulators.
|
||||
Supported values are
|
||||
0 = 0.05 uA
|
||||
1 = 0.25 uA
|
||||
2 = 0.55 uA
|
||||
3 = 0.75 uA
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 3
|
||||
|
||||
qcom,saw-slave:
|
||||
description: SAW controlled gang slave. Will not be configured.
|
||||
type: boolean
|
||||
|
||||
qcom,saw-leader:
|
||||
description:
|
||||
SAW controlled gang leader. Will be configured as SAW regulator.
|
||||
type: boolean
|
||||
|
||||
unevaluatedProperties: false
|
||||
|
||||
required:
|
||||
- compatible
|
||||
|
||||
allOf:
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pm660-regulators
|
||||
then:
|
||||
properties:
|
||||
vdd_l15_l16_l17_l18_l19-supply: true
|
||||
vdd_l1_l6_l7-supply: true
|
||||
vdd_l2_l3-supply: true
|
||||
vdd_l5-supply: true
|
||||
vdd_l8_l9_l10_l11_l12_l13_l14-supply: true
|
||||
patternProperties:
|
||||
"^vdd_s[1-6]-supply$": true
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pm660l-regulators
|
||||
then:
|
||||
properties:
|
||||
vdd_l1_l9_l10-supply: true
|
||||
vdd_l2-supply: true
|
||||
vdd_l3_l5_l7_l8-supply: true
|
||||
vdd_l4_l6-supply: true
|
||||
patternProperties:
|
||||
"^vdd_s[1-5]-supply$": true
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pm8004-regulators
|
||||
then:
|
||||
patternProperties:
|
||||
"^vdd_s[25]-supply$": true
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pm8005-regulators
|
||||
then:
|
||||
patternProperties:
|
||||
"^vdd_s[1-4]-supply$": true
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pm8226-regulators
|
||||
then:
|
||||
properties:
|
||||
vdd_l10_l11_l13-supply: true
|
||||
vdd_l12_l14-supply: true
|
||||
vdd_l15_l16_l17_l18-supply: true
|
||||
vdd_l19_l20_l21_l22_l23_l28-supply: true
|
||||
vdd_l1_l2_l4_l5-supply: true
|
||||
vdd_l25-supply: true
|
||||
vdd_l3_l24_l26-supply: true
|
||||
vdd_l6_l7_l8_l9_l27-supply: true
|
||||
vdd_lvs1-supply: true
|
||||
patternProperties:
|
||||
"^vdd_s[1-5]-supply$": true
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pm8841-regulators
|
||||
then:
|
||||
patternProperties:
|
||||
"^vdd_s[1-8]-supply$": true
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pm8916-regulators
|
||||
then:
|
||||
properties:
|
||||
vdd_l1_l3-supply: true
|
||||
vdd_l4_l5_l6-supply: true
|
||||
vdd_l8_l11_l14_l15_l16-supply: true
|
||||
vdd_l9_l10_l12_l13_l17_l18-supply: true
|
||||
patternProperties:
|
||||
"^vdd_l[27]-supply$": true
|
||||
"^vdd_s[1-4]-supply$": true
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pm8941-regulators
|
||||
then:
|
||||
properties:
|
||||
interrupts:
|
||||
items:
|
||||
- description: Over-current protection interrupt for 5V S1
|
||||
- description: Over-current protection interrupt for 5V S2
|
||||
interrupt-names:
|
||||
items:
|
||||
- const: ocp-5vs1
|
||||
- const: ocp-5vs2
|
||||
vdd_l13_l20_l23_l24-supply: true
|
||||
vdd_l1_l3-supply: true
|
||||
vdd_l21-supply: true
|
||||
vdd_l2_lvs_1_2_3-supply: true
|
||||
vdd_l4_l11-supply: true
|
||||
vdd_l5_l7-supply: true
|
||||
vdd_l6_l12_l14_l15-supply: true
|
||||
vdd_l8_l16_l18_19-supply: true
|
||||
vdd_l9_l10_l17_l22-supply: true
|
||||
vin_5vs-supply: true
|
||||
patternProperties:
|
||||
"^vdd_s[1-3]-supply$": true
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pm8950-regulators
|
||||
then:
|
||||
properties:
|
||||
vdd_l1_l19-supply: true
|
||||
vdd_l20-supply: true
|
||||
vdd_l21-supply: true
|
||||
vdd_l2_l23-supply: true
|
||||
vdd_l3-supply: true
|
||||
vdd_l4_l5_l6_l7_l16-supply: true
|
||||
vdd_l8_l11_l12_l17_l22-supply: true
|
||||
vdd_l9_l10_l13_l14_l15_l18-supply: true
|
||||
patternProperties:
|
||||
"^vdd_s[1-6]-supply$": true
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pm8994-regulators
|
||||
then:
|
||||
properties:
|
||||
vdd_l1-supply: true
|
||||
vdd_l13_l19_l23_l24-supply: true
|
||||
vdd_l14_l15-supply: true
|
||||
vdd_l17_l29-supply: true
|
||||
vdd_l20_l21-supply: true
|
||||
vdd_l25-supply: true
|
||||
vdd_l2_l26_l28-supply: true
|
||||
vdd_l3_l11-supply: true
|
||||
vdd_l4_l27_l31-supply: true
|
||||
vdd_l5_l7-supply: true
|
||||
vdd_l6_l12_l32-supply: true
|
||||
vdd_l8_l16_l30-supply: true
|
||||
vdd_l9_l10_l18_l22-supply: true
|
||||
vdd_lvs_1_2-supply: true
|
||||
patternProperties:
|
||||
"^vdd_s[1-9][0-2]?-supply$": true
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pmi8994-regulators
|
||||
then:
|
||||
properties:
|
||||
vdd_l1-supply: true
|
||||
patternProperties:
|
||||
"^vdd_s[1-3]-supply$": true
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pmp8074-regulators
|
||||
then:
|
||||
properties:
|
||||
vdd_l10_l11_l12_l13-supply: true
|
||||
vdd_l1_l2-supply: true
|
||||
vdd_l3_l8-supply: true
|
||||
vdd_l5_l6_l15-supply: true
|
||||
patternProperties:
|
||||
"^vdd_l[479]-supply$": true
|
||||
"^vdd_s[1-5]-supply$": true
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
enum:
|
||||
- qcom,pms405-regulators
|
||||
then:
|
||||
properties:
|
||||
vdd_s3-supply: true
|
||||
|
||||
unevaluatedProperties: false
|
||||
|
||||
examples:
|
||||
- |
|
||||
regulators {
|
||||
compatible = "qcom,pm8941-regulators";
|
||||
vdd_l1_l3-supply = <&s1>;
|
||||
|
||||
s1: s1 {
|
||||
regulator-min-microvolt = <1300000>;
|
||||
regulator-max-microvolt = <1400000>;
|
||||
};
|
||||
|
||||
l1: l1 {
|
||||
regulator-min-microvolt = <1225000>;
|
||||
regulator-max-microvolt = <1300000>;
|
||||
};
|
||||
};
|
||||
...
|
||||
@ -23,6 +23,7 @@ properties:
|
||||
|
||||
regulator-microvolt-offset:
|
||||
description: Offset applied to voltages to compensate for voltage drops
|
||||
$ref: "/schemas/types.yaml#/definitions/uint32"
|
||||
|
||||
regulator-min-microamp:
|
||||
description: smallest current consumers may set
|
||||
|
||||
@ -546,6 +546,16 @@ config REGULATOR_MAX1586
|
||||
regulator via I2C bus. The provided regulator is suitable
|
||||
for PXA27x chips to control VCC_CORE and VCC_USIM voltages.
|
||||
|
||||
config REGULATOR_MAX597X
|
||||
tristate "Maxim 597x power switch and monitor"
|
||||
depends on I2C
|
||||
depends on OF
|
||||
depends on MFD_MAX597X
|
||||
help
|
||||
This driver controls a Maxim 5970/5978 switch via I2C bus.
|
||||
The MAX5970/5978 is a smart switch with no output regulation, but
|
||||
fault protection and voltage and current monitoring capabilities.
|
||||
|
||||
config REGULATOR_MAX77620
|
||||
tristate "Maxim 77620/MAX20024 voltage regulator"
|
||||
depends on MFD_MAX77620 || COMPILE_TEST
|
||||
@ -804,6 +814,14 @@ config REGULATOR_MT6360
|
||||
2-channel buck with Thermal Shutdown and Overload Protection
|
||||
6-channel High PSRR and Low Dropout LDO.
|
||||
|
||||
config REGULATOR_MT6370
|
||||
tristate "MT6370 SubPMIC Regulator"
|
||||
depends on MFD_MT6370
|
||||
help
|
||||
Say Y here to enable MT6370 regulator support.
|
||||
This driver supports the control for DisplayBias voltages and one
|
||||
general purpose LDO which is commonly used to drive the vibrator.
|
||||
|
||||
config REGULATOR_MT6380
|
||||
tristate "MediaTek MT6380 PMIC"
|
||||
depends on MTK_PMIC_WRAP
|
||||
@ -1047,6 +1065,16 @@ config REGULATOR_RT5033
|
||||
RT5033 PMIC. The device supports multiple regulators like
|
||||
current source, LDO and Buck.
|
||||
|
||||
config REGULATOR_RT5120
|
||||
tristate "Richtek RT5120 PMIC Regulators"
|
||||
depends on MFD_RT5120
|
||||
help
|
||||
This adds support for voltage regulator in Richtek RT5120 PMIC.
|
||||
It integrates 4 channels buck controller, 1 channel LDO, 1 EXTEN
|
||||
to control external power source. Only BUCK1 is adjustable from
|
||||
600mV to 1395mV, per step 6.250mV. The others are all fixed voltage
|
||||
by external hardware circuit.
|
||||
|
||||
config REGULATOR_RT5190A
|
||||
tristate "Richtek RT5190A PMIC"
|
||||
depends on I2C
|
||||
|
||||
@ -67,6 +67,7 @@ obj-$(CONFIG_REGULATOR_LTC3589) += ltc3589.o
|
||||
obj-$(CONFIG_REGULATOR_LTC3676) += ltc3676.o
|
||||
obj-$(CONFIG_REGULATOR_MAX14577) += max14577-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_MAX1586) += max1586.o
|
||||
obj-$(CONFIG_REGULATOR_MAX597X) += max597x-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_MAX77620) += max77620-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_MAX77650) += max77650-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_MAX8649) += max8649.o
|
||||
@ -97,6 +98,7 @@ obj-$(CONFIG_REGULATOR_MT6323) += mt6323-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_MT6358) += mt6358-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_MT6359) += mt6359-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_MT6360) += mt6360-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_MT6370) += mt6370-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_MT6380) += mt6380-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_MT6397) += mt6397-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_MTK_DVFSRC) += mtk-dvfsrc-regulator.o
|
||||
@ -126,6 +128,7 @@ obj-$(CONFIG_REGULATOR_ROHM) += rohm-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_RT4801) += rt4801-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_RT4831) += rt4831-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_RT5033) += rt5033-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_RT5120) += rt5120-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_RT5190A) += rt5190a-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_RT5759) += rt5759-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_RT6160) += rt6160-regulator.o
|
||||
|
||||
@ -1565,6 +1565,9 @@ static int set_machine_constraints(struct regulator_dev *rdev)
|
||||
rdev->constraints->always_on = true;
|
||||
}
|
||||
|
||||
if (rdev->desc->off_on_delay)
|
||||
rdev->last_off = ktime_get();
|
||||
|
||||
/* If the constraints say the regulator should be on at this point
|
||||
* and we have control then make sure it is enabled.
|
||||
*/
|
||||
@ -1592,8 +1595,6 @@ static int set_machine_constraints(struct regulator_dev *rdev)
|
||||
|
||||
if (rdev->constraints->always_on)
|
||||
rdev->use_count++;
|
||||
} else if (rdev->desc->off_on_delay) {
|
||||
rdev->last_off = ktime_get();
|
||||
}
|
||||
|
||||
print_constraints(rdev);
|
||||
@ -4783,22 +4784,26 @@ int regulator_bulk_get(struct device *dev, int num_consumers,
|
||||
consumers[i].consumer = regulator_get(dev,
|
||||
consumers[i].supply);
|
||||
if (IS_ERR(consumers[i].consumer)) {
|
||||
ret = PTR_ERR(consumers[i].consumer);
|
||||
consumers[i].consumer = NULL;
|
||||
ret = dev_err_probe(dev, PTR_ERR(consumers[i].consumer),
|
||||
"Failed to get supply '%s'",
|
||||
consumers[i].supply);
|
||||
goto err;
|
||||
}
|
||||
|
||||
if (consumers[i].init_load_uA > 0) {
|
||||
ret = regulator_set_load(consumers[i].consumer,
|
||||
consumers[i].init_load_uA);
|
||||
if (ret) {
|
||||
i++;
|
||||
goto err;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
err:
|
||||
if (ret != -EPROBE_DEFER)
|
||||
dev_err(dev, "Failed to get supply '%s': %pe\n",
|
||||
consumers[i].supply, ERR_PTR(ret));
|
||||
else
|
||||
dev_dbg(dev, "Failed to get supply '%s', deferring\n",
|
||||
consumers[i].supply);
|
||||
|
||||
while (--i >= 0)
|
||||
regulator_put(consumers[i].consumer);
|
||||
|
||||
|
||||
@ -166,6 +166,34 @@ int devm_regulator_bulk_get(struct device *dev, int num_consumers,
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(devm_regulator_bulk_get);
|
||||
|
||||
/**
|
||||
* devm_regulator_bulk_get_const - devm_regulator_bulk_get() w/ const data
|
||||
*
|
||||
* @dev: device to supply
|
||||
* @num_consumers: number of consumers to register
|
||||
* @in_consumers: const configuration of consumers
|
||||
* @out_consumers: in_consumers is copied here and this is passed to
|
||||
* devm_regulator_bulk_get().
|
||||
*
|
||||
* This is a convenience function to allow bulk regulator configuration
|
||||
* to be stored "static const" in files.
|
||||
*
|
||||
* Return: 0 on success, an errno on failure.
|
||||
*/
|
||||
int devm_regulator_bulk_get_const(struct device *dev, int num_consumers,
|
||||
const struct regulator_bulk_data *in_consumers,
|
||||
struct regulator_bulk_data **out_consumers)
|
||||
{
|
||||
*out_consumers = devm_kmemdup(dev, in_consumers,
|
||||
num_consumers * sizeof(*in_consumers),
|
||||
GFP_KERNEL);
|
||||
if (*out_consumers == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
return devm_regulator_bulk_get(dev, num_consumers, *out_consumers);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(devm_regulator_bulk_get_const);
|
||||
|
||||
static void devm_rdev_release(struct device *dev, void *res)
|
||||
{
|
||||
regulator_unregister(*(struct regulator_dev **)res);
|
||||
|
||||
502
drivers/regulator/max597x-regulator.c
Normal file
502
drivers/regulator/max597x-regulator.c
Normal file
@ -0,0 +1,502 @@
|
||||
// SPDX-License-Identifier: GPL-2.0
|
||||
/*
|
||||
* Device driver for regulators in MAX5970 and MAX5978 IC
|
||||
*
|
||||
* Copyright (c) 2022 9elements GmbH
|
||||
*
|
||||
* Author: Patrick Rudolph <patrick.rudolph@9elements.com>
|
||||
*/
|
||||
|
||||
#include <linux/bitops.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/regulator/driver.h>
|
||||
#include <linux/regulator/machine.h>
|
||||
#include <linux/regulator/of_regulator.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
#include <linux/mfd/max597x.h>
|
||||
|
||||
struct max597x_regulator {
|
||||
int num_switches, mon_rng, irng, shunt_micro_ohms, lim_uA;
|
||||
struct regmap *regmap;
|
||||
};
|
||||
|
||||
enum max597x_regulator_id {
|
||||
MAX597X_SW0,
|
||||
MAX597X_SW1,
|
||||
};
|
||||
|
||||
static int max597x_uvp_ovp_check_mode(struct regulator_dev *rdev, int severity)
|
||||
{
|
||||
int ret, reg;
|
||||
|
||||
/* Status1 register contains the soft strap values sampled at POR */
|
||||
ret = regmap_read(rdev->regmap, MAX5970_REG_STATUS1, ®);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* Check soft straps match requested mode */
|
||||
if (severity == REGULATOR_SEVERITY_PROT) {
|
||||
if (STATUS1_PROT(reg) != STATUS1_PROT_SHUTDOWN)
|
||||
return -EOPNOTSUPP;
|
||||
|
||||
return 0;
|
||||
}
|
||||
if (STATUS1_PROT(reg) == STATUS1_PROT_SHUTDOWN)
|
||||
return -EOPNOTSUPP;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max597x_set_vp(struct regulator_dev *rdev, int lim_uV, int severity,
|
||||
bool enable, bool overvoltage)
|
||||
{
|
||||
int off_h, off_l, reg, ret;
|
||||
struct max597x_regulator *data = rdev_get_drvdata(rdev);
|
||||
int channel = rdev_get_id(rdev);
|
||||
|
||||
if (overvoltage) {
|
||||
if (severity == REGULATOR_SEVERITY_WARN) {
|
||||
off_h = MAX5970_REG_CH_OV_WARN_H(channel);
|
||||
off_l = MAX5970_REG_CH_OV_WARN_L(channel);
|
||||
} else {
|
||||
off_h = MAX5970_REG_CH_OV_CRIT_H(channel);
|
||||
off_l = MAX5970_REG_CH_OV_CRIT_L(channel);
|
||||
}
|
||||
} else {
|
||||
if (severity == REGULATOR_SEVERITY_WARN) {
|
||||
off_h = MAX5970_REG_CH_UV_WARN_H(channel);
|
||||
off_l = MAX5970_REG_CH_UV_WARN_L(channel);
|
||||
} else {
|
||||
off_h = MAX5970_REG_CH_UV_CRIT_H(channel);
|
||||
off_l = MAX5970_REG_CH_UV_CRIT_L(channel);
|
||||
}
|
||||
}
|
||||
|
||||
if (enable)
|
||||
/* reg = ADC_MASK * (lim_uV / 1000000) / (data->mon_rng / 1000000) */
|
||||
reg = ADC_MASK * lim_uV / data->mon_rng;
|
||||
else
|
||||
reg = 0;
|
||||
|
||||
ret = regmap_write(rdev->regmap, off_h, MAX5970_VAL2REG_H(reg));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = regmap_write(rdev->regmap, off_l, MAX5970_VAL2REG_L(reg));
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max597x_set_uvp(struct regulator_dev *rdev, int lim_uV, int severity,
|
||||
bool enable)
|
||||
{
|
||||
int ret;
|
||||
|
||||
/*
|
||||
* MAX5970 has enable control as a special value in limit reg. Can't
|
||||
* set limit but keep feature disabled or enable W/O given limit.
|
||||
*/
|
||||
if ((lim_uV && !enable) || (!lim_uV && enable))
|
||||
return -EINVAL;
|
||||
|
||||
ret = max597x_uvp_ovp_check_mode(rdev, severity);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return max597x_set_vp(rdev, lim_uV, severity, enable, false);
|
||||
}
|
||||
|
||||
static int max597x_set_ovp(struct regulator_dev *rdev, int lim_uV, int severity,
|
||||
bool enable)
|
||||
{
|
||||
int ret;
|
||||
|
||||
/*
|
||||
* MAX5970 has enable control as a special value in limit reg. Can't
|
||||
* set limit but keep feature disabled or enable W/O given limit.
|
||||
*/
|
||||
if ((lim_uV && !enable) || (!lim_uV && enable))
|
||||
return -EINVAL;
|
||||
|
||||
ret = max597x_uvp_ovp_check_mode(rdev, severity);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return max597x_set_vp(rdev, lim_uV, severity, enable, true);
|
||||
}
|
||||
|
||||
static int max597x_set_ocp(struct regulator_dev *rdev, int lim_uA,
|
||||
int severity, bool enable)
|
||||
{
|
||||
int ret, val, reg;
|
||||
unsigned int vthst, vthfst;
|
||||
|
||||
struct max597x_regulator *data = rdev_get_drvdata(rdev);
|
||||
int rdev_id = rdev_get_id(rdev);
|
||||
/*
|
||||
* MAX5970 doesn't has enable control for ocp.
|
||||
* If limit is specified but enable is not set then hold the value in
|
||||
* variable & later use it when ocp needs to be enabled.
|
||||
*/
|
||||
if (lim_uA != 0 && lim_uA != data->lim_uA)
|
||||
data->lim_uA = lim_uA;
|
||||
|
||||
if (severity != REGULATOR_SEVERITY_PROT)
|
||||
return -EINVAL;
|
||||
|
||||
if (enable) {
|
||||
|
||||
/* Calc Vtrip threshold in uV. */
|
||||
vthst =
|
||||
div_u64(mul_u32_u32(data->shunt_micro_ohms, data->lim_uA),
|
||||
1000000);
|
||||
|
||||
/*
|
||||
* As recommended in datasheed, add 20% margin to avoid
|
||||
* spurious event & passive component tolerance.
|
||||
*/
|
||||
vthst = div_u64(mul_u32_u32(vthst, 120), 100);
|
||||
|
||||
/* Calc fast Vtrip threshold in uV */
|
||||
vthfst = vthst * (MAX5970_FAST2SLOW_RATIO / 100);
|
||||
|
||||
if (vthfst > data->irng) {
|
||||
dev_err(&rdev->dev, "Current limit out of range\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
/* Fast trip threshold to be programmed */
|
||||
val = div_u64(mul_u32_u32(0xFF, vthfst), data->irng);
|
||||
} else
|
||||
/*
|
||||
* Since there is no option to disable ocp, set limit to max
|
||||
* value
|
||||
*/
|
||||
val = 0xFF;
|
||||
|
||||
reg = MAX5970_REG_DAC_FAST(rdev_id);
|
||||
ret = regmap_write(rdev->regmap, reg, val);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int max597x_get_status(struct regulator_dev *rdev)
|
||||
{
|
||||
int val, ret;
|
||||
|
||||
ret = regmap_read(rdev->regmap, MAX5970_REG_STATUS3, &val);
|
||||
if (ret)
|
||||
return REGULATOR_FAILED_RETRY;
|
||||
|
||||
if (val & MAX5970_STATUS3_ALERT)
|
||||
return REGULATOR_STATUS_ERROR;
|
||||
|
||||
ret = regulator_is_enabled_regmap(rdev);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
if (ret)
|
||||
return REGULATOR_STATUS_ON;
|
||||
|
||||
return REGULATOR_STATUS_OFF;
|
||||
}
|
||||
|
||||
static const struct regulator_ops max597x_switch_ops = {
|
||||
.enable = regulator_enable_regmap,
|
||||
.disable = regulator_disable_regmap,
|
||||
.is_enabled = regulator_is_enabled_regmap,
|
||||
.get_status = max597x_get_status,
|
||||
.set_over_voltage_protection = max597x_set_ovp,
|
||||
.set_under_voltage_protection = max597x_set_uvp,
|
||||
.set_over_current_protection = max597x_set_ocp,
|
||||
};
|
||||
|
||||
static int max597x_dt_parse(struct device_node *np,
|
||||
const struct regulator_desc *desc,
|
||||
struct regulator_config *cfg)
|
||||
{
|
||||
struct max597x_regulator *data = cfg->driver_data;
|
||||
int ret = 0;
|
||||
|
||||
ret =
|
||||
of_property_read_u32(np, "shunt-resistor-micro-ohms",
|
||||
&data->shunt_micro_ohms);
|
||||
if (ret < 0)
|
||||
dev_err(cfg->dev,
|
||||
"property 'shunt-resistor-micro-ohms' not found, err %d\n",
|
||||
ret);
|
||||
return ret;
|
||||
|
||||
}
|
||||
|
||||
#define MAX597X_SWITCH(_ID, _ereg, _chan, _supply) { \
|
||||
.name = #_ID, \
|
||||
.of_match = of_match_ptr(#_ID), \
|
||||
.ops = &max597x_switch_ops, \
|
||||
.regulators_node = of_match_ptr("regulators"), \
|
||||
.type = REGULATOR_VOLTAGE, \
|
||||
.id = MAX597X_##_ID, \
|
||||
.owner = THIS_MODULE, \
|
||||
.supply_name = _supply, \
|
||||
.enable_reg = _ereg, \
|
||||
.enable_mask = CHXEN((_chan)), \
|
||||
.of_parse_cb = max597x_dt_parse, \
|
||||
}
|
||||
|
||||
static const struct regulator_desc regulators[] = {
|
||||
MAX597X_SWITCH(SW0, MAX5970_REG_CHXEN, 0, "vss1"),
|
||||
MAX597X_SWITCH(SW1, MAX5970_REG_CHXEN, 1, "vss2"),
|
||||
};
|
||||
|
||||
static int max597x_regmap_read_clear(struct regmap *map, unsigned int reg,
|
||||
unsigned int *val)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = regmap_read(map, reg, val);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (*val)
|
||||
return regmap_write(map, reg, *val);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max597x_irq_handler(int irq, struct regulator_irq_data *rid,
|
||||
unsigned long *dev_mask)
|
||||
{
|
||||
struct regulator_err_state *stat;
|
||||
struct max597x_regulator *d = (struct max597x_regulator *)rid->data;
|
||||
int val, ret, i;
|
||||
|
||||
ret = max597x_regmap_read_clear(d->regmap, MAX5970_REG_FAULT0, &val);
|
||||
if (ret)
|
||||
return REGULATOR_FAILED_RETRY;
|
||||
|
||||
*dev_mask = 0;
|
||||
for (i = 0; i < d->num_switches; i++) {
|
||||
stat = &rid->states[i];
|
||||
stat->notifs = 0;
|
||||
stat->errors = 0;
|
||||
}
|
||||
|
||||
for (i = 0; i < d->num_switches; i++) {
|
||||
stat = &rid->states[i];
|
||||
|
||||
if (val & UV_STATUS_CRIT(i)) {
|
||||
*dev_mask |= 1 << i;
|
||||
stat->notifs |= REGULATOR_EVENT_UNDER_VOLTAGE;
|
||||
stat->errors |= REGULATOR_ERROR_UNDER_VOLTAGE;
|
||||
} else if (val & UV_STATUS_WARN(i)) {
|
||||
*dev_mask |= 1 << i;
|
||||
stat->notifs |= REGULATOR_EVENT_UNDER_VOLTAGE_WARN;
|
||||
stat->errors |= REGULATOR_ERROR_UNDER_VOLTAGE_WARN;
|
||||
}
|
||||
}
|
||||
|
||||
ret = max597x_regmap_read_clear(d->regmap, MAX5970_REG_FAULT1, &val);
|
||||
if (ret)
|
||||
return REGULATOR_FAILED_RETRY;
|
||||
|
||||
for (i = 0; i < d->num_switches; i++) {
|
||||
stat = &rid->states[i];
|
||||
|
||||
if (val & OV_STATUS_CRIT(i)) {
|
||||
*dev_mask |= 1 << i;
|
||||
stat->notifs |= REGULATOR_EVENT_REGULATION_OUT;
|
||||
stat->errors |= REGULATOR_ERROR_REGULATION_OUT;
|
||||
} else if (val & OV_STATUS_WARN(i)) {
|
||||
*dev_mask |= 1 << i;
|
||||
stat->notifs |= REGULATOR_EVENT_OVER_VOLTAGE_WARN;
|
||||
stat->errors |= REGULATOR_ERROR_OVER_VOLTAGE_WARN;
|
||||
}
|
||||
}
|
||||
|
||||
ret = max597x_regmap_read_clear(d->regmap, MAX5970_REG_FAULT2, &val);
|
||||
if (ret)
|
||||
return REGULATOR_FAILED_RETRY;
|
||||
|
||||
for (i = 0; i < d->num_switches; i++) {
|
||||
stat = &rid->states[i];
|
||||
|
||||
if (val & OC_STATUS_WARN(i)) {
|
||||
*dev_mask |= 1 << i;
|
||||
stat->notifs |= REGULATOR_EVENT_OVER_CURRENT_WARN;
|
||||
stat->errors |= REGULATOR_ERROR_OVER_CURRENT_WARN;
|
||||
}
|
||||
}
|
||||
|
||||
ret = regmap_read(d->regmap, MAX5970_REG_STATUS0, &val);
|
||||
if (ret)
|
||||
return REGULATOR_FAILED_RETRY;
|
||||
|
||||
for (i = 0; i < d->num_switches; i++) {
|
||||
stat = &rid->states[i];
|
||||
|
||||
if ((val & MAX5970_CB_IFAULTF(i))
|
||||
|| (val & MAX5970_CB_IFAULTS(i))) {
|
||||
*dev_mask |= 1 << i;
|
||||
stat->notifs |=
|
||||
REGULATOR_EVENT_OVER_CURRENT |
|
||||
REGULATOR_EVENT_DISABLE;
|
||||
stat->errors |=
|
||||
REGULATOR_ERROR_OVER_CURRENT | REGULATOR_ERROR_FAIL;
|
||||
|
||||
/* Clear the sub-IRQ status */
|
||||
regulator_disable_regmap(stat->rdev);
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct regmap_config max597x_regmap_config = {
|
||||
.reg_bits = 8,
|
||||
.val_bits = 8,
|
||||
.max_register = MAX_REGISTERS,
|
||||
};
|
||||
|
||||
static int max597x_adc_range(struct regmap *regmap, const int ch,
|
||||
u32 *irng, u32 *mon_rng)
|
||||
{
|
||||
unsigned int reg;
|
||||
int ret;
|
||||
|
||||
/* Decode current ADC range */
|
||||
ret = regmap_read(regmap, MAX5970_REG_STATUS2, ®);
|
||||
if (ret)
|
||||
return ret;
|
||||
switch (MAX5970_IRNG(reg, ch)) {
|
||||
case 0:
|
||||
*irng = 100000; /* 100 mV */
|
||||
break;
|
||||
case 1:
|
||||
*irng = 50000; /* 50 mV */
|
||||
break;
|
||||
case 2:
|
||||
*irng = 25000; /* 25 mV */
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* Decode current voltage monitor range */
|
||||
ret = regmap_read(regmap, MAX5970_REG_MON_RANGE, ®);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
*mon_rng = MAX5970_MON_MAX_RANGE_UV >> MAX5970_MON(reg, ch);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max597x_setup_irq(struct device *dev,
|
||||
int irq,
|
||||
struct regulator_dev *rdevs[MAX5970_NUM_SWITCHES],
|
||||
int num_switches, struct max597x_regulator *data)
|
||||
{
|
||||
struct regulator_irq_desc max597x_notif = {
|
||||
.name = "max597x-irq",
|
||||
.map_event = max597x_irq_handler,
|
||||
.data = data,
|
||||
};
|
||||
int errs = REGULATOR_ERROR_UNDER_VOLTAGE |
|
||||
REGULATOR_ERROR_UNDER_VOLTAGE_WARN |
|
||||
REGULATOR_ERROR_OVER_VOLTAGE_WARN |
|
||||
REGULATOR_ERROR_REGULATION_OUT |
|
||||
REGULATOR_ERROR_OVER_CURRENT |
|
||||
REGULATOR_ERROR_OVER_CURRENT_WARN | REGULATOR_ERROR_FAIL;
|
||||
void *irq_helper;
|
||||
|
||||
/* Register notifiers - can fail if IRQ is not given */
|
||||
irq_helper = devm_regulator_irq_helper(dev, &max597x_notif,
|
||||
irq, 0, errs, NULL,
|
||||
&rdevs[0], num_switches);
|
||||
if (IS_ERR(irq_helper)) {
|
||||
if (PTR_ERR(irq_helper) == -EPROBE_DEFER)
|
||||
return -EPROBE_DEFER;
|
||||
|
||||
dev_warn(dev, "IRQ disabled %pe\n", irq_helper);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max597x_regulator_probe(struct platform_device *pdev)
|
||||
{
|
||||
|
||||
|
||||
struct max597x_data *max597x = dev_get_drvdata(pdev->dev.parent);
|
||||
struct max597x_regulator *data;
|
||||
|
||||
struct regulator_config config = { };
|
||||
struct regulator_dev *rdev;
|
||||
struct regulator_dev *rdevs[MAX5970_NUM_SWITCHES];
|
||||
int num_switches = max597x->num_switches;
|
||||
int ret, i;
|
||||
|
||||
for (i = 0; i < num_switches; i++) {
|
||||
data =
|
||||
devm_kzalloc(max597x->dev, sizeof(struct max597x_regulator),
|
||||
GFP_KERNEL);
|
||||
if (!data)
|
||||
return -ENOMEM;
|
||||
|
||||
data->num_switches = num_switches;
|
||||
data->regmap = max597x->regmap;
|
||||
|
||||
ret = max597x_adc_range(data->regmap, i, &max597x->irng[i], &max597x->mon_rng[i]);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
data->irng = max597x->irng[i];
|
||||
data->mon_rng = max597x->mon_rng[i];
|
||||
|
||||
config.dev = max597x->dev;
|
||||
config.driver_data = (void *)data;
|
||||
config.regmap = data->regmap;
|
||||
rdev = devm_regulator_register(max597x->dev,
|
||||
®ulators[i], &config);
|
||||
if (IS_ERR(rdev)) {
|
||||
dev_err(max597x->dev, "failed to register regulator %s\n",
|
||||
regulators[i].name);
|
||||
return PTR_ERR(rdev);
|
||||
}
|
||||
rdevs[i] = rdev;
|
||||
max597x->shunt_micro_ohms[i] = data->shunt_micro_ohms;
|
||||
}
|
||||
|
||||
if (max597x->irq) {
|
||||
ret =
|
||||
max597x_setup_irq(max597x->dev, max597x->irq, rdevs, num_switches,
|
||||
data);
|
||||
if (ret) {
|
||||
dev_err(max597x->dev, "IRQ setup failed");
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct platform_driver max597x_regulator_driver = {
|
||||
.driver = {
|
||||
.name = "max597x-regulator",
|
||||
},
|
||||
.probe = max597x_regulator_probe,
|
||||
};
|
||||
|
||||
module_platform_driver(max597x_regulator_driver);
|
||||
|
||||
|
||||
MODULE_AUTHOR("Patrick Rudolph <patrick.rudolph@9elements.com>");
|
||||
MODULE_DESCRIPTION("MAX5970_hot-swap controller driver");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
@ -6,14 +6,14 @@
|
||||
//
|
||||
// Author: Saravanan Sekar <sravanhome@gmail.com>
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of_device.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/regulator/driver.h>
|
||||
#include <linux/i2c.h>
|
||||
|
||||
#define MP5416_REG_CTL0 0x00
|
||||
#define MP5416_REG_CTL1 0x01
|
||||
@ -174,10 +174,22 @@ static struct regulator_desc mp5416_regulators_desc[MP5416_MAX_REGULATORS] = {
|
||||
MP5416LDO("ldo4", 4, BIT(1)),
|
||||
};
|
||||
|
||||
static struct regulator_desc mp5496_regulators_desc[MP5416_MAX_REGULATORS] = {
|
||||
MP5416BUCK("buck1", 1, mp5416_I_limits1, MP5416_REG_CTL1, BIT(0), 1),
|
||||
MP5416BUCK("buck2", 2, mp5416_I_limits2, MP5416_REG_CTL1, BIT(1), 1),
|
||||
MP5416BUCK("buck3", 3, mp5416_I_limits1, MP5416_REG_CTL1, BIT(2), 1),
|
||||
MP5416BUCK("buck4", 4, mp5416_I_limits2, MP5416_REG_CTL2, BIT(5), 1),
|
||||
MP5416LDO("ldo1", 1, BIT(4)),
|
||||
MP5416LDO("ldo2", 2, BIT(3)),
|
||||
MP5416LDO("ldo3", 3, BIT(2)),
|
||||
MP5416LDO("ldo4", 4, BIT(1)),
|
||||
};
|
||||
|
||||
static int mp5416_i2c_probe(struct i2c_client *client)
|
||||
{
|
||||
struct device *dev = &client->dev;
|
||||
struct regulator_config config = { NULL, };
|
||||
static const struct regulator_desc *desc;
|
||||
struct regulator_dev *rdev;
|
||||
struct regmap *regmap;
|
||||
int i;
|
||||
@ -188,12 +200,16 @@ static int mp5416_i2c_probe(struct i2c_client *client)
|
||||
return PTR_ERR(regmap);
|
||||
}
|
||||
|
||||
desc = of_device_get_match_data(dev);
|
||||
if (!desc)
|
||||
return -ENODEV;
|
||||
|
||||
config.dev = dev;
|
||||
config.regmap = regmap;
|
||||
|
||||
for (i = 0; i < MP5416_MAX_REGULATORS; i++) {
|
||||
rdev = devm_regulator_register(dev,
|
||||
&mp5416_regulators_desc[i],
|
||||
&desc[i],
|
||||
&config);
|
||||
if (IS_ERR(rdev)) {
|
||||
dev_err(dev, "Failed to register regulator!\n");
|
||||
@ -205,13 +221,15 @@ static int mp5416_i2c_probe(struct i2c_client *client)
|
||||
}
|
||||
|
||||
static const struct of_device_id mp5416_of_match[] = {
|
||||
{ .compatible = "mps,mp5416" },
|
||||
{ .compatible = "mps,mp5416", .data = &mp5416_regulators_desc },
|
||||
{ .compatible = "mps,mp5496", .data = &mp5496_regulators_desc },
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, mp5416_of_match);
|
||||
|
||||
static const struct i2c_device_id mp5416_id[] = {
|
||||
{ "mp5416", },
|
||||
{ "mp5496", },
|
||||
{ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, mp5416_id);
|
||||
|
||||
390
drivers/regulator/mt6370-regulator.c
Normal file
390
drivers/regulator/mt6370-regulator.c
Normal file
@ -0,0 +1,390 @@
|
||||
// SPDX-License-Identifier: GPL-2.0+
|
||||
|
||||
#include <linux/bits.h>
|
||||
#include <linux/gpio/consumer.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/mod_devicetable.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/regulator/driver.h>
|
||||
#include <linux/regulator/machine.h>
|
||||
|
||||
enum {
|
||||
MT6370_IDX_DSVBOOST = 0,
|
||||
MT6370_IDX_DSVPOS,
|
||||
MT6370_IDX_DSVNEG,
|
||||
MT6370_IDX_VIBLDO,
|
||||
MT6370_MAX_IDX
|
||||
};
|
||||
|
||||
#define MT6370_REG_LDO_CFG 0x180
|
||||
#define MT6370_REG_LDO_VOUT 0x181
|
||||
#define MT6370_REG_DB_CTRL1 0x1B0
|
||||
#define MT6370_REG_DB_CTRL2 0x1B1
|
||||
#define MT6370_REG_DB_VBST 0x1B2
|
||||
#define MT6370_REG_DB_VPOS 0x1B3
|
||||
#define MT6370_REG_DB_VNEG 0x1B4
|
||||
#define MT6370_REG_LDO_STAT 0x1DC
|
||||
#define MT6370_REG_DB_STAT 0x1DF
|
||||
|
||||
#define MT6370_LDOOMS_MASK BIT(7)
|
||||
#define MT6370_LDOEN_MASK BIT(7)
|
||||
#define MT6370_LDOVOUT_MASK GENMASK(3, 0)
|
||||
#define MT6370_DBPERD_MASK (BIT(7) | BIT(4))
|
||||
#define MT6370_DBEXTEN_MASK BIT(0)
|
||||
#define MT6370_DBVPOSEN_MASK BIT(6)
|
||||
#define MT6370_DBVPOSDISG_MASK BIT(5)
|
||||
#define MT6370_DBVNEGEN_MASK BIT(3)
|
||||
#define MT6370_DBVNEGDISG_MASK BIT(2)
|
||||
#define MT6370_DBALLON_MASK (MT6370_DBVPOSEN_MASK | MT6370_DBVNEGEN_MASK)
|
||||
#define MT6370_DBSLEW_MASK GENMASK(7, 6)
|
||||
#define MT6370_DBVOUT_MASK GENMASK(5, 0)
|
||||
#define MT6370_LDOOC_EVT_MASK BIT(7)
|
||||
#define MT6370_POSSCP_EVT_MASK BIT(7)
|
||||
#define MT6370_NEGSCP_EVT_MASK BIT(6)
|
||||
#define MT6370_BSTOCP_EVT_MASK BIT(5)
|
||||
#define MT6370_POSOCP_EVT_MASK BIT(4)
|
||||
#define MT6370_NEGOCP_EVT_MASK BIT(3)
|
||||
|
||||
#define MT6370_LDO_MINUV 1600000
|
||||
#define MT6370_LDO_STPUV 200000
|
||||
#define MT6370_LDO_N_VOLT 13
|
||||
#define MT6370_DBVBOOST_MINUV 4000000
|
||||
#define MT6370_DBVBOOST_STPUV 50000
|
||||
#define MT6370_DBVBOOST_N_VOLT 45
|
||||
#define MT6370_DBVOUT_MINUV 4000000
|
||||
#define MT6370_DBVOUT_STPUV 50000
|
||||
#define MT6370_DBVOUT_N_VOLT 41
|
||||
|
||||
struct mt6370_priv {
|
||||
struct device *dev;
|
||||
struct regmap *regmap;
|
||||
struct regulator_dev *rdev[MT6370_MAX_IDX];
|
||||
bool use_external_ctrl;
|
||||
};
|
||||
|
||||
static const unsigned int mt6370_vpos_ramp_tbl[] = { 8540, 5840, 4830, 3000 };
|
||||
static const unsigned int mt6370_vneg_ramp_tbl[] = { 10090, 6310, 5050, 3150 };
|
||||
|
||||
static int mt6370_get_error_flags(struct regulator_dev *rdev,
|
||||
unsigned int *flags)
|
||||
{
|
||||
struct regmap *regmap = rdev_get_regmap(rdev);
|
||||
unsigned int stat_reg, stat, rpt_flags = 0;
|
||||
int rid = rdev_get_id(rdev), ret;
|
||||
|
||||
if (rid == MT6370_IDX_VIBLDO)
|
||||
stat_reg = MT6370_REG_LDO_STAT;
|
||||
else
|
||||
stat_reg = MT6370_REG_DB_STAT;
|
||||
|
||||
ret = regmap_read(regmap, stat_reg, &stat);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
switch (rid) {
|
||||
case MT6370_IDX_DSVBOOST:
|
||||
if (stat & MT6370_BSTOCP_EVT_MASK)
|
||||
rpt_flags |= REGULATOR_ERROR_OVER_CURRENT;
|
||||
break;
|
||||
case MT6370_IDX_DSVPOS:
|
||||
if (stat & MT6370_POSSCP_EVT_MASK)
|
||||
rpt_flags |= REGULATOR_ERROR_UNDER_VOLTAGE;
|
||||
|
||||
if (stat & MT6370_POSOCP_EVT_MASK)
|
||||
rpt_flags |= REGULATOR_ERROR_OVER_CURRENT;
|
||||
break;
|
||||
case MT6370_IDX_DSVNEG:
|
||||
if (stat & MT6370_NEGSCP_EVT_MASK)
|
||||
rpt_flags |= REGULATOR_ERROR_UNDER_VOLTAGE;
|
||||
|
||||
if (stat & MT6370_NEGOCP_EVT_MASK)
|
||||
rpt_flags |= REGULATOR_ERROR_OVER_CURRENT;
|
||||
break;
|
||||
default:
|
||||
if (stat & MT6370_LDOOC_EVT_MASK)
|
||||
rpt_flags |= REGULATOR_ERROR_OVER_CURRENT;
|
||||
break;
|
||||
}
|
||||
|
||||
*flags = rpt_flags;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct regulator_ops mt6370_dbvboost_ops = {
|
||||
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
||||
.set_voltage_sel = regulator_set_voltage_sel_regmap,
|
||||
.list_voltage = regulator_list_voltage_linear,
|
||||
.get_bypass = regulator_get_bypass_regmap,
|
||||
.set_bypass = regulator_set_bypass_regmap,
|
||||
.get_error_flags = mt6370_get_error_flags,
|
||||
};
|
||||
|
||||
static const struct regulator_ops mt6370_dbvout_ops = {
|
||||
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
||||
.set_voltage_sel = regulator_set_voltage_sel_regmap,
|
||||
.list_voltage = regulator_list_voltage_linear,
|
||||
.is_enabled = regulator_is_enabled_regmap,
|
||||
.enable = regulator_enable_regmap,
|
||||
.disable = regulator_disable_regmap,
|
||||
.set_active_discharge = regulator_set_active_discharge_regmap,
|
||||
.set_ramp_delay = regulator_set_ramp_delay_regmap,
|
||||
.get_error_flags = mt6370_get_error_flags,
|
||||
};
|
||||
|
||||
static const struct regulator_ops mt6370_ldo_ops = {
|
||||
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
||||
.set_voltage_sel = regulator_set_voltage_sel_regmap,
|
||||
.list_voltage = regulator_list_voltage_linear,
|
||||
.is_enabled = regulator_is_enabled_regmap,
|
||||
.enable = regulator_enable_regmap,
|
||||
.disable = regulator_disable_regmap,
|
||||
.set_active_discharge = regulator_set_active_discharge_regmap,
|
||||
.get_error_flags = mt6370_get_error_flags,
|
||||
};
|
||||
|
||||
static int mt6370_of_parse_cb(struct device_node *np,
|
||||
const struct regulator_desc *desc,
|
||||
struct regulator_config *config)
|
||||
{
|
||||
struct mt6370_priv *priv = config->driver_data;
|
||||
struct gpio_desc *enable_gpio;
|
||||
int ret;
|
||||
|
||||
enable_gpio = fwnode_gpiod_get_index(of_fwnode_handle(np), "enable", 0,
|
||||
GPIOD_OUT_HIGH |
|
||||
GPIOD_FLAGS_BIT_NONEXCLUSIVE,
|
||||
desc->name);
|
||||
if (IS_ERR(enable_gpio)) {
|
||||
config->ena_gpiod = NULL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* RG control by default
|
||||
* Only if all are using external pin, change all by external control
|
||||
*/
|
||||
if (priv->use_external_ctrl) {
|
||||
ret = regmap_update_bits(priv->regmap, MT6370_REG_DB_CTRL1,
|
||||
MT6370_DBEXTEN_MASK,
|
||||
MT6370_DBEXTEN_MASK);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
config->ena_gpiod = enable_gpio;
|
||||
priv->use_external_ctrl = true;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct regulator_desc mt6370_regulator_descs[] = {
|
||||
{
|
||||
.name = "mt6370-dsv-vbst",
|
||||
.of_match = of_match_ptr("dsvbst"),
|
||||
.regulators_node = of_match_ptr("regulators"),
|
||||
.id = MT6370_IDX_DSVBOOST,
|
||||
.type = REGULATOR_VOLTAGE,
|
||||
.owner = THIS_MODULE,
|
||||
.ops = &mt6370_dbvboost_ops,
|
||||
.min_uV = MT6370_DBVBOOST_MINUV,
|
||||
.uV_step = MT6370_DBVBOOST_STPUV,
|
||||
.n_voltages = MT6370_DBVBOOST_N_VOLT,
|
||||
.vsel_reg = MT6370_REG_DB_VBST,
|
||||
.vsel_mask = MT6370_DBVOUT_MASK,
|
||||
.bypass_reg = MT6370_REG_DB_CTRL1,
|
||||
.bypass_mask = MT6370_DBPERD_MASK,
|
||||
.bypass_val_on = MT6370_DBPERD_MASK,
|
||||
},
|
||||
{
|
||||
.name = "mt6370-dsv-vpos",
|
||||
.of_match = of_match_ptr("dsvpos"),
|
||||
.regulators_node = of_match_ptr("regulators"),
|
||||
.id = MT6370_IDX_DSVPOS,
|
||||
.type = REGULATOR_VOLTAGE,
|
||||
.owner = THIS_MODULE,
|
||||
.of_parse_cb = mt6370_of_parse_cb,
|
||||
.ops = &mt6370_dbvout_ops,
|
||||
.min_uV = MT6370_DBVOUT_MINUV,
|
||||
.uV_step = MT6370_DBVOUT_STPUV,
|
||||
.n_voltages = MT6370_DBVOUT_N_VOLT,
|
||||
.vsel_reg = MT6370_REG_DB_VPOS,
|
||||
.vsel_mask = MT6370_DBVOUT_MASK,
|
||||
.enable_reg = MT6370_REG_DB_CTRL2,
|
||||
.enable_mask = MT6370_DBVPOSEN_MASK,
|
||||
.ramp_reg = MT6370_REG_DB_VPOS,
|
||||
.ramp_mask = MT6370_DBSLEW_MASK,
|
||||
.ramp_delay_table = mt6370_vpos_ramp_tbl,
|
||||
.n_ramp_values = ARRAY_SIZE(mt6370_vpos_ramp_tbl),
|
||||
.active_discharge_reg = MT6370_REG_DB_CTRL2,
|
||||
.active_discharge_mask = MT6370_DBVPOSDISG_MASK,
|
||||
.active_discharge_on = MT6370_DBVPOSDISG_MASK,
|
||||
},
|
||||
{
|
||||
.name = "mt6370-dsv-vneg",
|
||||
.of_match = of_match_ptr("dsvneg"),
|
||||
.regulators_node = of_match_ptr("regulators"),
|
||||
.id = MT6370_IDX_DSVNEG,
|
||||
.type = REGULATOR_VOLTAGE,
|
||||
.owner = THIS_MODULE,
|
||||
.of_parse_cb = mt6370_of_parse_cb,
|
||||
.ops = &mt6370_dbvout_ops,
|
||||
.min_uV = MT6370_DBVOUT_MINUV,
|
||||
.uV_step = MT6370_DBVOUT_STPUV,
|
||||
.n_voltages = MT6370_DBVOUT_N_VOLT,
|
||||
.vsel_reg = MT6370_REG_DB_VNEG,
|
||||
.vsel_mask = MT6370_DBVOUT_MASK,
|
||||
.enable_reg = MT6370_REG_DB_CTRL2,
|
||||
.enable_mask = MT6370_DBVNEGEN_MASK,
|
||||
.ramp_reg = MT6370_REG_DB_VNEG,
|
||||
.ramp_mask = MT6370_DBSLEW_MASK,
|
||||
.ramp_delay_table = mt6370_vneg_ramp_tbl,
|
||||
.n_ramp_values = ARRAY_SIZE(mt6370_vneg_ramp_tbl),
|
||||
.active_discharge_reg = MT6370_REG_DB_CTRL2,
|
||||
.active_discharge_mask = MT6370_DBVNEGDISG_MASK,
|
||||
.active_discharge_on = MT6370_DBVNEGDISG_MASK,
|
||||
},
|
||||
{
|
||||
.name = "mt6370-vib-ldo",
|
||||
.of_match = of_match_ptr("vibldo"),
|
||||
.regulators_node = of_match_ptr("regulators"),
|
||||
.id = MT6370_IDX_VIBLDO,
|
||||
.type = REGULATOR_VOLTAGE,
|
||||
.owner = THIS_MODULE,
|
||||
.ops = &mt6370_ldo_ops,
|
||||
.min_uV = MT6370_LDO_MINUV,
|
||||
.uV_step = MT6370_LDO_STPUV,
|
||||
.n_voltages = MT6370_LDO_N_VOLT,
|
||||
.vsel_reg = MT6370_REG_LDO_VOUT,
|
||||
.vsel_mask = MT6370_LDOVOUT_MASK,
|
||||
.enable_reg = MT6370_REG_LDO_VOUT,
|
||||
.enable_mask = MT6370_LDOEN_MASK,
|
||||
.active_discharge_reg = MT6370_REG_LDO_CFG,
|
||||
.active_discharge_mask = MT6370_LDOOMS_MASK,
|
||||
.active_discharge_on = MT6370_LDOOMS_MASK,
|
||||
}
|
||||
};
|
||||
|
||||
static irqreturn_t mt6370_scp_handler(int irq, void *data)
|
||||
{
|
||||
struct regulator_dev *rdev = data;
|
||||
|
||||
regulator_notifier_call_chain(rdev, REGULATOR_EVENT_UNDER_VOLTAGE,
|
||||
NULL);
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static irqreturn_t mt6370_ocp_handler(int irq, void *data)
|
||||
{
|
||||
struct regulator_dev *rdev = data;
|
||||
|
||||
regulator_notifier_call_chain(rdev, REGULATOR_EVENT_OVER_CURRENT, NULL);
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static int mt6370_regulator_irq_register(struct mt6370_priv *priv)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(priv->dev);
|
||||
static const struct {
|
||||
const char *name;
|
||||
int rid;
|
||||
irq_handler_t handler;
|
||||
} mt6370_irqs[] = {
|
||||
{ "db_vpos_scp", MT6370_IDX_DSVPOS, mt6370_scp_handler },
|
||||
{ "db_vneg_scp", MT6370_IDX_DSVNEG, mt6370_scp_handler },
|
||||
{ "db_vbst_ocp", MT6370_IDX_DSVBOOST, mt6370_ocp_handler },
|
||||
{ "db_vpos_ocp", MT6370_IDX_DSVPOS, mt6370_ocp_handler },
|
||||
{ "db_vneg_ocp", MT6370_IDX_DSVNEG, mt6370_ocp_handler },
|
||||
{ "ldo_oc", MT6370_IDX_VIBLDO, mt6370_ocp_handler }
|
||||
};
|
||||
struct regulator_dev *rdev;
|
||||
int i, irq, ret;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(mt6370_irqs); i++) {
|
||||
irq = platform_get_irq_byname(pdev, mt6370_irqs[i].name);
|
||||
|
||||
rdev = priv->rdev[mt6370_irqs[i].rid];
|
||||
|
||||
ret = devm_request_threaded_irq(priv->dev, irq, NULL,
|
||||
mt6370_irqs[i].handler, 0,
|
||||
mt6370_irqs[i].name, rdev);
|
||||
if (ret) {
|
||||
dev_err(priv->dev,
|
||||
"Failed to register (%d) interrupt\n", i);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int mt6370_regualtor_register(struct mt6370_priv *priv)
|
||||
{
|
||||
struct regulator_dev *rdev;
|
||||
struct regulator_config cfg = {};
|
||||
struct device *parent = priv->dev->parent;
|
||||
int i;
|
||||
|
||||
cfg.dev = parent;
|
||||
cfg.driver_data = priv;
|
||||
|
||||
for (i = 0; i < MT6370_MAX_IDX; i++) {
|
||||
rdev = devm_regulator_register(priv->dev,
|
||||
mt6370_regulator_descs + i,
|
||||
&cfg);
|
||||
if (IS_ERR(rdev)) {
|
||||
dev_err(priv->dev,
|
||||
"Failed to register (%d) regulator\n", i);
|
||||
return PTR_ERR(rdev);
|
||||
}
|
||||
|
||||
priv->rdev[i] = rdev;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int mt6370_regulator_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct mt6370_priv *priv;
|
||||
int ret;
|
||||
|
||||
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv)
|
||||
return -ENOMEM;
|
||||
|
||||
priv->dev = &pdev->dev;
|
||||
|
||||
priv->regmap = dev_get_regmap(pdev->dev.parent, NULL);
|
||||
if (!priv->regmap) {
|
||||
dev_err(&pdev->dev, "Failed to init regmap\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = mt6370_regualtor_register(priv);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return mt6370_regulator_irq_register(priv);
|
||||
}
|
||||
|
||||
static const struct platform_device_id mt6370_devid_table[] = {
|
||||
{ "mt6370-regulator", 0},
|
||||
{}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(platform, mt6370_devid_table);
|
||||
|
||||
static struct platform_driver mt6370_regulator_driver = {
|
||||
.driver = {
|
||||
.name = "mt6370-regulator",
|
||||
},
|
||||
.id_table = mt6370_devid_table,
|
||||
.probe = mt6370_regulator_probe,
|
||||
};
|
||||
module_platform_driver(mt6370_regulator_driver);
|
||||
|
||||
MODULE_AUTHOR("ChiYuan Huang <cy_huang@richtek.com>");
|
||||
MODULE_DESCRIPTION("Mediatek MT6370 Regulator Driver");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
@ -319,7 +319,7 @@ static const struct platform_device_id mt6380_platform_ids[] = {
|
||||
};
|
||||
MODULE_DEVICE_TABLE(platform, mt6380_platform_ids);
|
||||
|
||||
static const struct of_device_id mt6380_of_match[] = {
|
||||
static const struct of_device_id __maybe_unused mt6380_of_match[] = {
|
||||
{ .compatible = "mediatek,mt6380-regulator", },
|
||||
{ /* sentinel */ },
|
||||
};
|
||||
|
||||
@ -264,8 +264,12 @@ static int of_get_regulation_constraints(struct device *dev,
|
||||
}
|
||||
|
||||
suspend_np = of_get_child_by_name(np, regulator_states[i]);
|
||||
if (!suspend_np || !suspend_state)
|
||||
if (!suspend_np)
|
||||
continue;
|
||||
if (!suspend_state) {
|
||||
of_node_put(suspend_np);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!of_property_read_u32(suspend_np, "regulator-mode",
|
||||
&pval)) {
|
||||
|
||||
@ -205,6 +205,7 @@ static const struct regulator_ops rpm_mp5496_ops = {
|
||||
.is_enabled = rpm_reg_is_enabled,
|
||||
.list_voltage = regulator_list_voltage_linear_range,
|
||||
|
||||
.get_voltage = rpm_reg_get_voltage,
|
||||
.set_voltage = rpm_reg_set_voltage,
|
||||
};
|
||||
|
||||
@ -357,10 +358,10 @@ static const struct regulator_desc pm8941_switch = {
|
||||
|
||||
static const struct regulator_desc pm8916_pldo = {
|
||||
.linear_ranges = (struct linear_range[]) {
|
||||
REGULATOR_LINEAR_RANGE(750000, 0, 208, 12500),
|
||||
REGULATOR_LINEAR_RANGE(1750000, 0, 127, 12500),
|
||||
},
|
||||
.n_linear_ranges = 1,
|
||||
.n_voltages = 209,
|
||||
.n_voltages = 128,
|
||||
.ops = &rpm_smps_ldo_ops,
|
||||
};
|
||||
|
||||
@ -783,6 +784,29 @@ static const struct rpm_regulator_data rpm_pm8841_regulators[] = {
|
||||
{}
|
||||
};
|
||||
|
||||
static const struct rpm_regulator_data rpm_pm8909_regulators[] = {
|
||||
{ "s1", QCOM_SMD_RPM_SMPA, 1, &pm8916_buck_lvo_smps, "vdd_s1" },
|
||||
{ "s2", QCOM_SMD_RPM_SMPA, 2, &pm8916_buck_hvo_smps, "vdd_s2" },
|
||||
{ "l1", QCOM_SMD_RPM_LDOA, 1, &pm8916_nldo, "vdd_l1" },
|
||||
{ "l2", QCOM_SMD_RPM_LDOA, 2, &pm8916_nldo, "vdd_l2_l5" },
|
||||
{ "l3", QCOM_SMD_RPM_LDOA, 3, &pm8916_nldo, "vdd_l3_l6_l10" },
|
||||
{ "l4", QCOM_SMD_RPM_LDOA, 4, &pm8916_pldo, "vdd_l4_l7" },
|
||||
{ "l5", QCOM_SMD_RPM_LDOA, 5, &pm8226_pldo, "vdd_l2_l5" },
|
||||
{ "l6", QCOM_SMD_RPM_LDOA, 6, &pm8226_pldo, "vdd_l3_l6_l10" },
|
||||
{ "l7", QCOM_SMD_RPM_LDOA, 7, &pm8226_pldo, "vdd_l4_l7" },
|
||||
{ "l8", QCOM_SMD_RPM_LDOA, 8, &pm8916_pldo, "vdd_l8_l11_l15_l18" },
|
||||
{ "l9", QCOM_SMD_RPM_LDOA, 9, &pm8916_pldo, "vdd_l9_l12_l14_l17" },
|
||||
{ "l10", QCOM_SMD_RPM_LDOA, 10, &pm8916_nldo, "vdd_l3_l6_l10" },
|
||||
{ "l11", QCOM_SMD_RPM_LDOA, 11, &pm8226_pldo, "vdd_l8_l11_l15_l18" },
|
||||
{ "l12", QCOM_SMD_RPM_LDOA, 12, &pm8916_pldo, "vdd_l9_l12_l14_l17" },
|
||||
{ "l13", QCOM_SMD_RPM_LDOA, 13, &pm8916_pldo, "vdd_l13" },
|
||||
{ "l14", QCOM_SMD_RPM_LDOA, 14, &pm8916_pldo, "vdd_l9_l12_l14_l17" },
|
||||
{ "l15", QCOM_SMD_RPM_LDOA, 15, &pm8916_pldo, "vdd_l8_l11_l15_l18" },
|
||||
{ "l17", QCOM_SMD_RPM_LDOA, 17, &pm8916_pldo, "vdd_l9_l12_l14_l17" },
|
||||
{ "l18", QCOM_SMD_RPM_LDOA, 18, &pm8916_pldo, "vdd_l8_l11_l15_l18" },
|
||||
{}
|
||||
};
|
||||
|
||||
static const struct rpm_regulator_data rpm_pm8916_regulators[] = {
|
||||
{ "s1", QCOM_SMD_RPM_SMPA, 1, &pm8916_buck_lvo_smps, "vdd_s1" },
|
||||
{ "s2", QCOM_SMD_RPM_SMPA, 2, &pm8916_buck_lvo_smps, "vdd_s2" },
|
||||
@ -1221,6 +1245,7 @@ static const struct rpm_regulator_data rpm_pm2250_regulators[] = {
|
||||
static const struct of_device_id rpm_of_match[] = {
|
||||
{ .compatible = "qcom,rpm-mp5496-regulators", .data = &rpm_mp5496_regulators },
|
||||
{ .compatible = "qcom,rpm-pm8841-regulators", .data = &rpm_pm8841_regulators },
|
||||
{ .compatible = "qcom,rpm-pm8909-regulators", .data = &rpm_pm8909_regulators },
|
||||
{ .compatible = "qcom,rpm-pm8916-regulators", .data = &rpm_pm8916_regulators },
|
||||
{ .compatible = "qcom,rpm-pm8226-regulators", .data = &rpm_pm8226_regulators },
|
||||
{ .compatible = "qcom,rpm-pm8941-regulators", .data = &rpm_pm8941_regulators },
|
||||
|
||||
@ -164,6 +164,8 @@ enum spmi_regulator_subtype {
|
||||
SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL3 = 0x0f,
|
||||
SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL4 = 0x10,
|
||||
SPMI_REGULATOR_SUBTYPE_HFS430 = 0x0a,
|
||||
SPMI_REGULATOR_SUBTYPE_HT_P150 = 0x35,
|
||||
SPMI_REGULATOR_SUBTYPE_HT_P600 = 0x3d,
|
||||
};
|
||||
|
||||
enum spmi_common_regulator_registers {
|
||||
@ -544,6 +546,14 @@ static struct spmi_voltage_range hfs430_ranges[] = {
|
||||
SPMI_VOLTAGE_RANGE(0, 320000, 320000, 2040000, 2040000, 8000),
|
||||
};
|
||||
|
||||
static struct spmi_voltage_range ht_p150_ranges[] = {
|
||||
SPMI_VOLTAGE_RANGE(0, 1616000, 1616000, 3304000, 3304000, 8000),
|
||||
};
|
||||
|
||||
static struct spmi_voltage_range ht_p600_ranges[] = {
|
||||
SPMI_VOLTAGE_RANGE(0, 1704000, 1704000, 1896000, 1896000, 8000),
|
||||
};
|
||||
|
||||
static DEFINE_SPMI_SET_POINTS(pldo);
|
||||
static DEFINE_SPMI_SET_POINTS(nldo1);
|
||||
static DEFINE_SPMI_SET_POINTS(nldo2);
|
||||
@ -564,6 +574,8 @@ static DEFINE_SPMI_SET_POINTS(nldo660);
|
||||
static DEFINE_SPMI_SET_POINTS(ht_lvpldo);
|
||||
static DEFINE_SPMI_SET_POINTS(ht_nldo);
|
||||
static DEFINE_SPMI_SET_POINTS(hfs430);
|
||||
static DEFINE_SPMI_SET_POINTS(ht_p150);
|
||||
static DEFINE_SPMI_SET_POINTS(ht_p600);
|
||||
|
||||
static inline int spmi_vreg_read(struct spmi_regulator *vreg, u16 addr, u8 *buf,
|
||||
int len)
|
||||
@ -1458,6 +1470,8 @@ static const struct regulator_ops spmi_hfs430_ops = {
|
||||
|
||||
static const struct spmi_regulator_mapping supported_regulators[] = {
|
||||
/* type subtype dig_min dig_max ltype ops setpoints hpm_min */
|
||||
SPMI_VREG(LDO, HT_P600, 0, INF, HFS430, hfs430, ht_p600, 10000),
|
||||
SPMI_VREG(LDO, HT_P150, 0, INF, HFS430, hfs430, ht_p150, 10000),
|
||||
SPMI_VREG(BUCK, GP_CTL, 0, INF, SMPS, smps, smps, 100000),
|
||||
SPMI_VREG(BUCK, HFS430, 0, INF, HFS430, hfs430, hfs430, 10000),
|
||||
SPMI_VREG(LDO, N300, 0, INF, LDO, ldo, nldo1, 10000),
|
||||
@ -2125,6 +2139,28 @@ static const struct spmi_regulator_data pm8005_regulators[] = {
|
||||
{ }
|
||||
};
|
||||
|
||||
static const struct spmi_regulator_data pmp8074_regulators[] = {
|
||||
{ "s1", 0x1400, "vdd_s1"},
|
||||
{ "s2", 0x1700, "vdd_s2"},
|
||||
{ "s3", 0x1a00, "vdd_s3"},
|
||||
{ "s4", 0x1d00, "vdd_s4"},
|
||||
{ "s5", 0x2000, "vdd_s5"},
|
||||
{ "l1", 0x4000, "vdd_l1_l2"},
|
||||
{ "l2", 0x4100, "vdd_l1_l2"},
|
||||
{ "l3", 0x4200, "vdd_l3_l8"},
|
||||
{ "l4", 0x4300, "vdd_l4"},
|
||||
{ "l5", 0x4400, "vdd_l5_l6_l15"},
|
||||
{ "l6", 0x4500, "vdd_l5_l6_l15"},
|
||||
{ "l7", 0x4600, "vdd_l7"},
|
||||
{ "l8", 0x4700, "vdd_l3_l8"},
|
||||
{ "l9", 0x4800, "vdd_l9"},
|
||||
/* l10 is currently unsupported HT_P50 */
|
||||
{ "l11", 0x4a00, "vdd_l10_l11_l12_l13"},
|
||||
{ "l12", 0x4b00, "vdd_l10_l11_l12_l13"},
|
||||
{ "l13", 0x4c00, "vdd_l10_l11_l12_l13"},
|
||||
{ }
|
||||
};
|
||||
|
||||
static const struct spmi_regulator_data pms405_regulators[] = {
|
||||
{ "s3", 0x1a00, "vdd_s3"},
|
||||
{ }
|
||||
@ -2142,6 +2178,7 @@ static const struct of_device_id qcom_spmi_regulator_match[] = {
|
||||
{ .compatible = "qcom,pmi8994-regulators", .data = &pmi8994_regulators },
|
||||
{ .compatible = "qcom,pm660-regulators", .data = &pm660_regulators },
|
||||
{ .compatible = "qcom,pm660l-regulators", .data = &pm660l_regulators },
|
||||
{ .compatible = "qcom,pmp8074-regulators", .data = &pmp8074_regulators },
|
||||
{ .compatible = "qcom,pms405-regulators", .data = &pms405_regulators },
|
||||
{ }
|
||||
};
|
||||
|
||||
@ -187,15 +187,11 @@ static int attiny_update_status(struct backlight_device *bl)
|
||||
{
|
||||
struct attiny_lcd *state = bl_get_data(bl);
|
||||
struct regmap *regmap = state->regmap;
|
||||
int brightness = bl->props.brightness;
|
||||
int brightness = backlight_get_brightness(bl);
|
||||
int ret, i;
|
||||
|
||||
mutex_lock(&state->lock);
|
||||
|
||||
if (bl->props.power != FB_BLANK_UNBLANK ||
|
||||
bl->props.fb_blank != FB_BLANK_UNBLANK)
|
||||
brightness = 0;
|
||||
|
||||
for (i = 0; i < 10; i++) {
|
||||
ret = regmap_write(regmap, REG_PWM, brightness);
|
||||
if (!ret)
|
||||
|
||||
420
drivers/regulator/rt5120-regulator.c
Normal file
420
drivers/regulator/rt5120-regulator.c
Normal file
@ -0,0 +1,420 @@
|
||||
// SPDX-License-Identifier: GPL-2.0+
|
||||
|
||||
#include <linux/bits.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/regulator/driver.h>
|
||||
#include <linux/regulator/machine.h>
|
||||
#include <linux/regulator/of_regulator.h>
|
||||
|
||||
#define RT5120_REG_PGSTAT 0x03
|
||||
#define RT5120_REG_CH1VID 0x06
|
||||
#define RT5120_REG_CH1SLPVID 0x07
|
||||
#define RT5120_REG_ENABLE 0x08
|
||||
#define RT5120_REG_MODECTL 0x09
|
||||
#define RT5120_REG_UVOVPROT 0x0A
|
||||
#define RT5120_REG_SLPCTL 0x0C
|
||||
#define RT5120_REG_INTSTAT 0x1E
|
||||
#define RT5120_REG_DISCHG 0x1F
|
||||
|
||||
#define RT5120_OUTPG_MASK(rid) BIT(rid + 1)
|
||||
#define RT5120_OUTUV_MASK(rid) BIT(rid + 9)
|
||||
#define RT5120_OUTOV_MASK(rid) BIT(rid + 16)
|
||||
#define RT5120_CH1VID_MASK GENMASK(6, 0)
|
||||
#define RT5120_RIDEN_MASK(rid) BIT(rid + 1)
|
||||
#define RT5120_RADEN_MASK(rid) BIT(rid)
|
||||
#define RT5120_FPWM_MASK(rid) BIT(rid + 1)
|
||||
#define RT5120_UVHICCUP_MASK BIT(1)
|
||||
#define RT5120_OVHICCUP_MASK BIT(0)
|
||||
#define RT5120_HOTDIE_MASK BIT(1)
|
||||
|
||||
#define RT5120_BUCK1_MINUV 600000
|
||||
#define RT5120_BUCK1_MAXUV 1393750
|
||||
#define RT5120_BUCK1_STEPUV 6250
|
||||
#define RT5120_BUCK1_NUM_VOLT 0x80
|
||||
|
||||
#define RT5120_AUTO_MODE 0
|
||||
#define RT5120_FPWM_MODE 1
|
||||
|
||||
enum {
|
||||
RT5120_REGULATOR_BUCK1 = 0,
|
||||
RT5120_REGULATOR_BUCK2,
|
||||
RT5120_REGULATOR_BUCK3,
|
||||
RT5120_REGULATOR_BUCK4,
|
||||
RT5120_REGULATOR_LDO,
|
||||
RT5120_REGULATOR_EXTEN,
|
||||
RT5120_MAX_REGULATOR
|
||||
};
|
||||
|
||||
struct rt5120_priv {
|
||||
struct device *dev;
|
||||
struct regmap *regmap;
|
||||
struct regulator_desc rdesc[RT5120_MAX_REGULATOR];
|
||||
};
|
||||
|
||||
static int rt5120_buck_set_mode(struct regulator_dev *rdev, unsigned int mode)
|
||||
{
|
||||
struct regmap *regmap = rdev_get_regmap(rdev);
|
||||
int rid = rdev_get_id(rdev);
|
||||
unsigned int mask = RT5120_FPWM_MASK(rid), val;
|
||||
|
||||
switch (mode) {
|
||||
case REGULATOR_MODE_NORMAL:
|
||||
val = 0;
|
||||
break;
|
||||
case REGULATOR_MODE_FAST:
|
||||
val = RT5120_FPWM_MASK(rid);
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return regmap_update_bits(regmap, RT5120_REG_MODECTL, mask, val);
|
||||
}
|
||||
|
||||
static unsigned int rt5120_buck_get_mode(struct regulator_dev *rdev)
|
||||
{
|
||||
struct regmap *regmap = rdev_get_regmap(rdev);
|
||||
int ret, rid = rdev_get_id(rdev);
|
||||
unsigned int val;
|
||||
|
||||
ret = regmap_read(regmap, RT5120_REG_MODECTL, &val);
|
||||
if (ret)
|
||||
return REGULATOR_MODE_INVALID;
|
||||
|
||||
if (val & RT5120_FPWM_MASK(rid))
|
||||
return REGULATOR_MODE_FAST;
|
||||
|
||||
return REGULATOR_MODE_NORMAL;
|
||||
}
|
||||
|
||||
static int rt5120_regulator_get_error_flags(struct regulator_dev *rdev,
|
||||
unsigned int *flags)
|
||||
{
|
||||
struct regmap *regmap = rdev_get_regmap(rdev);
|
||||
unsigned int stat, hd_stat, cur_flags = 0;
|
||||
int rid = rdev_get_id(rdev), ret;
|
||||
|
||||
/*
|
||||
* reg 0x03/0x04/0x05 to indicate PG/UV/OV
|
||||
* use block read to descrease I/O xfer time
|
||||
*/
|
||||
ret = regmap_raw_read(regmap, RT5120_REG_PGSTAT, &stat, 3);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = regmap_read(regmap, RT5120_REG_INTSTAT, &hd_stat);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (!(stat & RT5120_OUTPG_MASK(rid))) {
|
||||
if (stat & RT5120_OUTUV_MASK(rid))
|
||||
cur_flags |= REGULATOR_ERROR_UNDER_VOLTAGE;
|
||||
|
||||
if (stat & RT5120_OUTOV_MASK(rid))
|
||||
cur_flags |= REGULATOR_ERROR_REGULATION_OUT;
|
||||
}
|
||||
|
||||
if (hd_stat & RT5120_HOTDIE_MASK)
|
||||
cur_flags |= REGULATOR_ERROR_OVER_TEMP;
|
||||
|
||||
*flags = cur_flags;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rt5120_buck1_set_suspend_voltage(struct regulator_dev *rdev, int uV)
|
||||
{
|
||||
struct regmap *regmap = rdev_get_regmap(rdev);
|
||||
int sel;
|
||||
|
||||
if (uV < RT5120_BUCK1_MINUV || uV > RT5120_BUCK1_MAXUV)
|
||||
return -EINVAL;
|
||||
|
||||
sel = (uV - RT5120_BUCK1_MINUV) / RT5120_BUCK1_STEPUV;
|
||||
return regmap_write(regmap, RT5120_REG_CH1SLPVID, sel);
|
||||
}
|
||||
|
||||
static int rt5120_regulator_set_suspend_enable(struct regulator_dev *rdev)
|
||||
{
|
||||
struct regmap *regmap = rdev_get_regmap(rdev);
|
||||
int rid = rdev_get_id(rdev);
|
||||
unsigned int mask = RT5120_RIDEN_MASK(rid);
|
||||
|
||||
return regmap_update_bits(regmap, RT5120_REG_SLPCTL, mask, mask);
|
||||
}
|
||||
|
||||
static int rt5120_regulator_set_suspend_disable(struct regulator_dev *rdev)
|
||||
{
|
||||
struct regmap *regmap = rdev_get_regmap(rdev);
|
||||
int rid = rdev_get_id(rdev);
|
||||
unsigned int mask = RT5120_RIDEN_MASK(rid);
|
||||
|
||||
return regmap_update_bits(regmap, RT5120_REG_SLPCTL, mask, 0);
|
||||
}
|
||||
|
||||
static const struct regulator_ops rt5120_buck1_ops = {
|
||||
.enable = regulator_enable_regmap,
|
||||
.disable = regulator_disable_regmap,
|
||||
.is_enabled = regulator_is_enabled_regmap,
|
||||
.list_voltage = regulator_list_voltage_linear,
|
||||
.set_voltage_sel = regulator_set_voltage_sel_regmap,
|
||||
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
||||
.set_active_discharge = regulator_set_active_discharge_regmap,
|
||||
.set_mode = rt5120_buck_set_mode,
|
||||
.get_mode = rt5120_buck_get_mode,
|
||||
.get_error_flags = rt5120_regulator_get_error_flags,
|
||||
.set_suspend_voltage = rt5120_buck1_set_suspend_voltage,
|
||||
.set_suspend_enable = rt5120_regulator_set_suspend_enable,
|
||||
.set_suspend_disable = rt5120_regulator_set_suspend_disable,
|
||||
};
|
||||
|
||||
static const struct regulator_ops rt5120_buck234_ops = {
|
||||
.enable = regulator_enable_regmap,
|
||||
.disable = regulator_disable_regmap,
|
||||
.is_enabled = regulator_is_enabled_regmap,
|
||||
.set_active_discharge = regulator_set_active_discharge_regmap,
|
||||
.set_mode = rt5120_buck_set_mode,
|
||||
.get_mode = rt5120_buck_get_mode,
|
||||
.get_error_flags = rt5120_regulator_get_error_flags,
|
||||
.set_suspend_enable = rt5120_regulator_set_suspend_enable,
|
||||
.set_suspend_disable = rt5120_regulator_set_suspend_disable,
|
||||
};
|
||||
|
||||
static const struct regulator_ops rt5120_ldo_ops = {
|
||||
.enable = regulator_enable_regmap,
|
||||
.disable = regulator_disable_regmap,
|
||||
.is_enabled = regulator_is_enabled_regmap,
|
||||
.set_active_discharge = regulator_set_active_discharge_regmap,
|
||||
.get_error_flags = rt5120_regulator_get_error_flags,
|
||||
.set_suspend_enable = rt5120_regulator_set_suspend_enable,
|
||||
.set_suspend_disable = rt5120_regulator_set_suspend_disable,
|
||||
};
|
||||
|
||||
static const struct regulator_ops rt5120_exten_ops = {
|
||||
.enable = regulator_enable_regmap,
|
||||
.disable = regulator_disable_regmap,
|
||||
.is_enabled = regulator_is_enabled_regmap,
|
||||
.set_suspend_enable = rt5120_regulator_set_suspend_enable,
|
||||
.set_suspend_disable = rt5120_regulator_set_suspend_disable,
|
||||
};
|
||||
|
||||
static unsigned int rt5120_buck_of_map_mode(unsigned int mode)
|
||||
{
|
||||
switch (mode) {
|
||||
case RT5120_AUTO_MODE:
|
||||
return REGULATOR_MODE_NORMAL;
|
||||
case RT5120_FPWM_MODE:
|
||||
return REGULATOR_MODE_FAST;
|
||||
default:
|
||||
return REGULATOR_MODE_INVALID;
|
||||
}
|
||||
}
|
||||
|
||||
static void rt5120_fillin_regulator_desc(struct regulator_desc *desc, int rid)
|
||||
{
|
||||
static const char * const name[] = {
|
||||
"buck1", "buck2", "buck3", "buck4", "ldo", "exten" };
|
||||
static const char * const sname[] = {
|
||||
"vin1", "vin2", "vin3", "vin4", "vinldo", NULL };
|
||||
|
||||
/* Common regulator property */
|
||||
desc->name = name[rid];
|
||||
desc->supply_name = sname[rid];
|
||||
desc->owner = THIS_MODULE;
|
||||
desc->type = REGULATOR_VOLTAGE;
|
||||
desc->id = rid;
|
||||
desc->enable_reg = RT5120_REG_ENABLE;
|
||||
desc->enable_mask = RT5120_RIDEN_MASK(rid);
|
||||
desc->active_discharge_reg = RT5120_REG_DISCHG;
|
||||
desc->active_discharge_mask = RT5120_RADEN_MASK(rid);
|
||||
desc->active_discharge_on = RT5120_RADEN_MASK(rid);
|
||||
/* Config n_voltages to 1 for all*/
|
||||
desc->n_voltages = 1;
|
||||
|
||||
/* Only buck support mode change */
|
||||
if (rid >= RT5120_REGULATOR_BUCK1 && rid <= RT5120_REGULATOR_BUCK4)
|
||||
desc->of_map_mode = rt5120_buck_of_map_mode;
|
||||
|
||||
/* RID specific property init */
|
||||
switch (rid) {
|
||||
case RT5120_REGULATOR_BUCK1:
|
||||
/* Only buck1 support voltage change by I2C */
|
||||
desc->n_voltages = RT5120_BUCK1_NUM_VOLT;
|
||||
desc->min_uV = RT5120_BUCK1_MINUV;
|
||||
desc->uV_step = RT5120_BUCK1_STEPUV;
|
||||
desc->vsel_reg = RT5120_REG_CH1VID,
|
||||
desc->vsel_mask = RT5120_CH1VID_MASK,
|
||||
desc->ops = &rt5120_buck1_ops;
|
||||
break;
|
||||
case RT5120_REGULATOR_BUCK2 ... RT5120_REGULATOR_BUCK4:
|
||||
desc->ops = &rt5120_buck234_ops;
|
||||
break;
|
||||
case RT5120_REGULATOR_LDO:
|
||||
desc->ops = &rt5120_ldo_ops;
|
||||
break;
|
||||
default:
|
||||
desc->ops = &rt5120_exten_ops;
|
||||
}
|
||||
}
|
||||
|
||||
static int rt5120_of_parse_cb(struct rt5120_priv *priv, int rid,
|
||||
struct of_regulator_match *match)
|
||||
{
|
||||
struct regulator_desc *desc = priv->rdesc + rid;
|
||||
struct regulator_init_data *init_data = match->init_data;
|
||||
|
||||
if (!init_data || rid == RT5120_REGULATOR_BUCK1)
|
||||
return 0;
|
||||
|
||||
if (init_data->constraints.min_uV != init_data->constraints.max_uV) {
|
||||
dev_err(priv->dev, "Variable voltage for fixed regulator\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
desc->fixed_uV = init_data->constraints.min_uV;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct of_regulator_match rt5120_regu_match[RT5120_MAX_REGULATOR] = {
|
||||
[RT5120_REGULATOR_BUCK1] = { .name = "buck1", },
|
||||
[RT5120_REGULATOR_BUCK2] = { .name = "buck2", },
|
||||
[RT5120_REGULATOR_BUCK3] = { .name = "buck3", },
|
||||
[RT5120_REGULATOR_BUCK4] = { .name = "buck4", },
|
||||
[RT5120_REGULATOR_LDO] = { .name = "ldo", },
|
||||
[RT5120_REGULATOR_EXTEN] = { .name = "exten", }
|
||||
};
|
||||
|
||||
static int rt5120_parse_regulator_dt_data(struct rt5120_priv *priv)
|
||||
{
|
||||
struct device *dev = priv->dev->parent;
|
||||
struct device_node *reg_node;
|
||||
int i, ret;
|
||||
|
||||
for (i = 0; i < RT5120_MAX_REGULATOR; i++) {
|
||||
rt5120_fillin_regulator_desc(priv->rdesc + i, i);
|
||||
|
||||
rt5120_regu_match[i].desc = priv->rdesc + i;
|
||||
}
|
||||
|
||||
reg_node = of_get_child_by_name(dev->of_node, "regulators");
|
||||
if (!reg_node) {
|
||||
dev_err(priv->dev, "Couldn't find 'regulators' node\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = of_regulator_match(priv->dev, reg_node, rt5120_regu_match,
|
||||
ARRAY_SIZE(rt5120_regu_match));
|
||||
|
||||
of_node_put(reg_node);
|
||||
|
||||
if (ret < 0) {
|
||||
dev_err(priv->dev,
|
||||
"Error parsing regulator init data (%d)\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
for (i = 0; i < RT5120_MAX_REGULATOR; i++) {
|
||||
ret = rt5120_of_parse_cb(priv, i, rt5120_regu_match + i);
|
||||
if (ret) {
|
||||
dev_err(priv->dev, "Failed in [%d] of_passe_cb\n", i);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rt5120_device_property_init(struct rt5120_priv *priv)
|
||||
{
|
||||
struct device *dev = priv->dev->parent;
|
||||
struct device_node *np = dev->of_node;
|
||||
bool prot_enable;
|
||||
unsigned int prot_enable_val = 0;
|
||||
|
||||
/* Assign UV/OV HW protection behavior */
|
||||
prot_enable = of_property_read_bool(np,
|
||||
"richtek,enable-undervolt-hiccup");
|
||||
if (prot_enable)
|
||||
prot_enable_val |= RT5120_UVHICCUP_MASK;
|
||||
|
||||
prot_enable = of_property_read_bool(np,
|
||||
"richtek,enable-overvolt-hiccup");
|
||||
if (prot_enable)
|
||||
prot_enable_val |= RT5120_OVHICCUP_MASK;
|
||||
|
||||
return regmap_update_bits(priv->regmap, RT5120_REG_UVOVPROT,
|
||||
RT5120_UVHICCUP_MASK | RT5120_OVHICCUP_MASK,
|
||||
prot_enable_val);
|
||||
}
|
||||
|
||||
static int rt5120_regulator_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct rt5120_priv *priv;
|
||||
struct regulator_dev *rdev;
|
||||
struct regulator_config config = {};
|
||||
int i, ret;
|
||||
|
||||
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv)
|
||||
return -ENOMEM;
|
||||
|
||||
priv->dev = &pdev->dev;
|
||||
|
||||
priv->regmap = dev_get_regmap(pdev->dev.parent, NULL);
|
||||
if (!priv->regmap) {
|
||||
dev_err(&pdev->dev, "Failed to init regmap\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = rt5120_device_property_init(priv);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "Failed to do property init\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = rt5120_parse_regulator_dt_data(priv);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "Failed to parse dt data\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
config.dev = &pdev->dev;
|
||||
config.regmap = priv->regmap;
|
||||
|
||||
for (i = 0; i < RT5120_MAX_REGULATOR; i++) {
|
||||
config.of_node = rt5120_regu_match[i].of_node;
|
||||
config.init_data = rt5120_regu_match[i].init_data;
|
||||
|
||||
rdev = devm_regulator_register(&pdev->dev, priv->rdesc + i,
|
||||
&config);
|
||||
if (IS_ERR(rdev)) {
|
||||
dev_err(&pdev->dev,
|
||||
"Failed to register regulator [%d]\n", i);
|
||||
return PTR_ERR(rdev);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct platform_device_id rt5120_regulator_dev_table[] = {
|
||||
{ "rt5120-regulator", 0 },
|
||||
{}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(platform, rt5120_regulator_dev_table);
|
||||
|
||||
static struct platform_driver rt5120_regulator_driver = {
|
||||
.driver = {
|
||||
.name = "rt5120-regulator",
|
||||
},
|
||||
.id_table = rt5120_regulator_dev_table,
|
||||
.probe = rt5120_regulator_probe,
|
||||
};
|
||||
module_platform_driver(rt5120_regulator_driver);
|
||||
|
||||
MODULE_AUTHOR("ChiYuan Huang <cy_huang@richtek.com>");
|
||||
MODULE_DESCRIPTION("Richtek RT5120 regulator driver");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
@ -224,6 +224,9 @@ static int rt5190a_of_parse_cb(struct rt5190a_priv *priv, int rid,
|
||||
bool latchup_enable;
|
||||
unsigned int mask = RT5190A_RID_BITMASK(rid), val;
|
||||
|
||||
if (!init_data)
|
||||
return 0;
|
||||
|
||||
switch (rid) {
|
||||
case RT5190A_IDX_BUCK1:
|
||||
case RT5190A_IDX_BUCK4:
|
||||
|
||||
@ -343,6 +343,7 @@ static int scmi_regulator_probe(struct scmi_device *sdev)
|
||||
* plausible SCMI Voltage Domain number, all belonging to this SCMI
|
||||
* platform instance node (handle->dev->of_node).
|
||||
*/
|
||||
of_node_get(handle->dev->of_node);
|
||||
np = of_find_node_by_name(handle->dev->of_node, "regulators");
|
||||
for_each_child_of_node(np, child) {
|
||||
ret = process_scmi_regulator_of_node(sdev, ph, child, rinfo);
|
||||
|
||||
@ -309,7 +309,7 @@ out:
|
||||
*
|
||||
* Return: 0 on success or appropriate error value when fails
|
||||
*/
|
||||
static int ti_abb_set_voltage_sel(struct regulator_dev *rdev, unsigned sel)
|
||||
static int ti_abb_set_voltage_sel(struct regulator_dev *rdev, unsigned int sel)
|
||||
{
|
||||
const struct regulator_desc *desc = rdev->desc;
|
||||
struct ti_abb *abb = rdev_get_drvdata(rdev);
|
||||
@ -344,7 +344,7 @@ static int ti_abb_set_voltage_sel(struct regulator_dev *rdev, unsigned sel)
|
||||
|
||||
info = &abb->info[sel];
|
||||
/*
|
||||
* When Linux kernel is starting up, we are'nt sure of the
|
||||
* When Linux kernel is starting up, we aren't sure of the
|
||||
* Bias configuration that bootloader has configured.
|
||||
* So, we get to know the actual setting the first time
|
||||
* we are asked to transition.
|
||||
|
||||
@ -171,10 +171,13 @@ struct regulator;
|
||||
/**
|
||||
* struct regulator_bulk_data - Data used for bulk regulator operations.
|
||||
*
|
||||
* @supply: The name of the supply. Initialised by the user before
|
||||
* using the bulk regulator APIs.
|
||||
* @consumer: The regulator consumer for the supply. This will be managed
|
||||
* by the bulk API.
|
||||
* @supply: The name of the supply. Initialised by the user before
|
||||
* using the bulk regulator APIs.
|
||||
* @init_load_uA: After getting the regulator, regulator_set_load() will be
|
||||
* called with this load. Initialised by the user before
|
||||
* using the bulk regulator APIs.
|
||||
* @consumer: The regulator consumer for the supply. This will be managed
|
||||
* by the bulk API.
|
||||
*
|
||||
* The regulator APIs provide a series of regulator_bulk_() API calls as
|
||||
* a convenience to consumers which require multiple supplies. This
|
||||
@ -182,6 +185,7 @@ struct regulator;
|
||||
*/
|
||||
struct regulator_bulk_data {
|
||||
const char *supply;
|
||||
int init_load_uA;
|
||||
struct regulator *consumer;
|
||||
|
||||
/* private: Internal use */
|
||||
@ -240,6 +244,10 @@ int __must_check regulator_bulk_get(struct device *dev, int num_consumers,
|
||||
struct regulator_bulk_data *consumers);
|
||||
int __must_check devm_regulator_bulk_get(struct device *dev, int num_consumers,
|
||||
struct regulator_bulk_data *consumers);
|
||||
int __must_check devm_regulator_bulk_get_const(
|
||||
struct device *dev, int num_consumers,
|
||||
const struct regulator_bulk_data *in_consumers,
|
||||
struct regulator_bulk_data **out_consumers);
|
||||
int __must_check regulator_bulk_enable(int num_consumers,
|
||||
struct regulator_bulk_data *consumers);
|
||||
int regulator_bulk_disable(int num_consumers,
|
||||
|
||||
@ -348,6 +348,7 @@ enum regulator_type {
|
||||
* @ramp_delay_table: Table for mapping the regulator ramp-rate values. Values
|
||||
* should be given in units of V/S (uV/uS). See the
|
||||
* regulator_set_ramp_delay_regmap().
|
||||
* @n_ramp_values: number of elements at @ramp_delay_table.
|
||||
*
|
||||
* @enable_time: Time taken for initial enable of regulator (in uS).
|
||||
* @off_on_delay: guard time (in uS), before re-enabling a regulator
|
||||
|
||||
Loading…
Reference in New Issue
Block a user