evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

regulator: qpnp-labibb: Add support for PM660A

Browse source 
Modify the driver to support the new lab/ibb
hardware changes supported on PM660A.

New hardware supports the following features:
1) Smart pulse skip mode
2) LDO mode for LAB
3) PFM mode
4) PBS sequencer handling SWIRE decoding
5) Default output voltage configuration

Change-Id: I5461995cc0ac930dd354c63b97223085306e869d
Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
This commit is contained in:
Kiran Gunda 2016-10-28 17:45:57 +05:30
parent 98a47a0419
commit 3f384542db
2 changed files with 1724 additions and 823 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

201
Documentation/devicetree/bindings/regulator/qpnp-labibb-regulator.txt
View file

@ -26,7 +26,7 @@ Main node optional properties:
in LAB and IBB modules. Make sure the
hardware has needed support before
enabling this property.
- qcom,swire-control: A bool property which indicates if the LAB/IBB is
- qcom,swire-control: A boolean property which indicates if the LAB/IBB is
controlled by the SWIRE interface. Enable only
if qcom,qpnp-labibb-mode = "amoled".
- qcom,labibb-ttw-force-lab-on: A boolean property which forces LAB to be
@ -53,6 +53,15 @@ Main node optional properties:
needed when LAB and IBB are operating
in standalone mode to vote for MBG.
Following properties are available only for PM660A:
- qcom,pbs-control: A boolean property which indicates if
the LAB/IBB is controlled by the PBS
sequencer. If this mode is enabled the
PBS sequencer does the SWIRE remapping
and program the voltages based on the
SWIRE count.
LAB subnode required properties:
- reg: Specifies the SPMI address and size for this peripheral.
@ -72,29 +81,9 @@ LAB subnode required properties:
is configured in amoled mode.
- qcom,qpnp-lab-init-lcd-voltage: The default output voltage when LAB regulator
is configured in lcd mode.
- qcom,qpnp-lab-soft-start: The soft start time in us of LAB regulator.
Supported value are 200, 400, 600 and 800.
- qcom,qpnp-lab-ps-threshold: The threshold in mA of Pulse Skip Mode for
LAB regulator. Supported values are 20, 30,
40 and 50.
- qcom,qpnp-lab-pfet-size: PFET size in percentage. Supported values
are 25, 50, 75 and 100.
- qcom,qpnp-lab-nfet-size: NFET size in percentage. Supported values
are 25, 50, 75 and 100.
- qcom,qpnp-lab-max-precharge-time: Precharge time in uS for LAB regulator.
Supported values are 200, 300, 400 and 500.
Suggested values for LCD and AMOLED mode
are 500 and 300uS respectively.
- qcom,qpnp-lab-switching-clock-frequency: The PWM switching clock frequency in
kHz of Lab regulator, Supported values
are: 3200, 2740, 2400, 2130, 1920,
1750, 1600, 1480, 1370, 1280, 1200,
1130, 1070, 1010, 960, 910.
- qcom,qpnp-lab-limit-maximum-current: The maximum inductor current limit in
mA of LAB regulator. Supported values
are 200, 400, 600, 800, 1000, 1200,
1400 and 1600.
- interrupts: Specify the interrupts as per the interrupt
encoding.
Currently "lab-vreg-ok" is required for
@ -125,9 +114,9 @@ LAB subnode optional properties:
- qcom,qpnp-lab-pull-down-enable: A boolean property which upon set will enable
the pull down for LAB regulator. Otherwise,
it is disabled.
- qcom,qpnp-lab-max-precharge-enable: A boolean property which upon set will
enable fast precharge. Otherwise, it is
disabled.
- qcom,qpnp-lab-max-precharge-enable: A boolean property which upon set will
enable fast precharge. Otherwise, it is
disabled.
- qcom,qpnp-lab-ring-suppression-enable: A boolean property which upon set will
enable ring suppression for LAB
regulator. Otherwise, it is disabled.
@ -135,14 +124,65 @@ LAB subnode optional properties:
enforce maximum inductor current constraint
for LAB regulator. Otherwise, there is no
maximum current constraint.
- qcom,qpnp-lab-use-default-voltage: A boolean property which upon set will
use the value specified in
qcom,qpnp-lab-init-voltage property.
This will be used only if the bootloader
doesn't configure the output voltage
already. If it it not specified, then
output voltage can be configured to
any value in the allowed limit.
- qcom,qpnp-lab-switching-clock-frequency: The PWM switching clock frequency in
kHz of Lab regulator, Supported values
are: 3200, 2740, 2400, 2130, 1920,
1750, 1600, 1480, 1370, 1280, 1200,
1130, 1070, 1010, 960, 910.
- qcom,qpnp-lab-limit-maximum-current: The maximum inductor current limit in
mA of LAB regulator. Supported values
are 200, 400, 600, 800, 1000, 1200,
1400 and 1600.
- qcom,qpnp-lab-pfet-size: PFET size in percentage. Supported values
are 25, 50, 75 and 100.
- qcom,qpnp-lab-nfet-size: NFET size in percentage. Supported values
are 25, 50, 75 and 100.
- qcom,qpnp-lab-max-precharge-time: Precharge time in uS for LAB regulator.
Supported values are 200, 300, 400 and 500.
Suggested values for LCD and AMOLED mode
are 500 and 300uS respectively.
- qcom,qpnp-lab-use-default-voltage: A boolean property which upon set will
use the value specified in
qcom,qpnp-lab-init-voltage property.
This will be used only if the bootloader
doesn't configure the output voltage
already. If it it not specified, then
output voltage can be configured to
any value in the allowed limit.
Following properties are available only for PM660A:
- qcom,qpnp-lab-soft-start: The soft start time in us of LAB regulator.
Supported value are 200, 400, 600 and 800.
- qcom,qpnp-lab-ldo-pulldown-enable: This property is used to enable/disable
the LDO pull down.
1 - enable pulldown
0 - disable pulldown
- qcom,qpnp-lab-enable-sw-high-psrr: A boolean property to enable the
software high psrr
(Power Suppy Rejection Rate) mode.
- qcom,qpnp-lab-high-psrr-src-select: This property is used to select the LAB
HW high psrr source.
The supported values are:
0 = Either vph_high or high_psrr enable
1 = vph_high only
2 = high_psrr enable only
3 = Either vph_high or high_psrr enable
This property is not valid if the
qcom,qpnp-lab-enable-sw-high-psrr property
is specified.
- qcom,qpnp-lab-vref-high-psrr-select: This property is required if the
qcom,qpnp-lab-high-psrr-src-select is
specified. The supported values (in mV)
are 350, 400, 450 and 500. Once the
rejection rate crosses the selected
high-psrr voltage the LDO is enabled
based on the value specified under
qcom,qpnp-lab-high-psrr-src-select
property.
This property is not valid if the
qcom,qpnp-lab-enable-sw-high-psrr property
is specified.
IBB subnode required properties:
@ -154,8 +194,6 @@ IBB subnode required properties:
- qcom,qpnp-ibb-min-voltage: The minimum voltage in microvolts IBB regulator can support.
- qcom,qpnp-ibb-step-size: The step size in microvolts of IBB regulator.
- qcom,qpnp-ibb-slew-rate: The time in us taken by the regulator to change
voltage value in one step.
- qcom,qpnp-ibb-soft-start: The soft start time in us of IBB regulator.
- qcom,qpnp-ibb-init-voltage: The default initial voltage when the bootloader does
@ -168,13 +206,41 @@ IBB subnode required properties:
- qcom,qpnp-ibb-discharge-resistor: The discharge resistor in Kilo Ohms which
controls the soft start time. Supported values
are 300, 64, 32 and 16.
IBB subnode optional properties:
- qcom,qpnp-ibb-slew-rate: The time (in us) taken by the regulator to change
voltage value in one step. This property is not
applicable to PM660A.
The following properties can be used as an
alternate.
qcom,qpnp-ibb-slew-rate-config
qcom,qpnp-ibb-fast-slew-rate
qcom,qpnp-ibb-slow-slew-rate
- qcom,qpnp-ibb-ps-enable: A boolean property which upon set will enable
pulse skip mode for IBB regulator. Otherwise,
it is disabled.
- qcom,qpnp-ibb-num-swire-trans: The number of SWIRE transactions
after which the pulse skipping is
enabled. This property is required when
qpnp-ibb-smart-ps-enable property is
set.
- qcom,qpnp-ibb-neg-curr-limit: This property must be set when the
qpnp-ibb-smart-ps-enable is specified.
The supported values in mA are 1, 2, 3,
4, 5, 6 and 7. The recommended value is
- qcom,qpnp-ibb-full-pull-down: A boolean property which upon set will
enable the pull down strength of IBB
regulator to full. Otherwise, the pull
down strength is configured to half.
- qcom,qpnp-ibb-pull-down-enable: A boolean property which upon set will enable
the pull down for IBB regulator. Otherwise,
it is disabled.
- qcom,qpnp-ibb-lab-pwrup-delay: Power up delay (in us) for IBB regulator when
it is enabled or turned on. Supported values
are 1000, 2000, 4000 and 8000.
- qcom,qpnp-ibb-lab-pwrdn-delay: Power down delay (in us) for IBB regulator
when it is disabled or turned off. Supported
values are 1000, 2000, 4000 and 8000.
- qcom,qpnp-ibb-switching-clock-frequency: The PWM switching clock frequency in
kHz of IBB regulator. Supported values
are: 3200, 2740, 2400, 2130, 1920,
@ -182,26 +248,13 @@ IBB subnode required properties:
1130, 1070, 1010, 960, 910.
- qcom,qpnp-ibb-limit-maximum-current: The maximum inductor current limit in
mA of IBB regulator. Supported values
are: 0, 50, 100, 150, 200, 250, 300,
are: 0, 50, 100, 150, 200, 250, 300,
350, 400, 450, 500, 550, 600, 650, 700,
750, 800, 850, 900, 950, 1000, 1050,
1100, 1150, 1200, 1250, 1300, 1350,
1100, 1150, 1200, 1250, 1300, 1350,
1400, 1450, 1500 and 1550.
- qcom,qpnp-ibb-debounce-cycle: The debounce cycle of IBB regulator.
Supported values are 8, 16, 32 and 64.
IBB subnode optional properties:
- qcom,qpnp-ibb-ps-enable: A boolean property which upon set will enable
pulse skip mode for IBB regulator. Otherwise,
it is disabled.
- qcom,qpnp-ibb-full-pull-down: A boolean property which upon set will enable
the pull down strength of IBB regulator to
full. Otherwise, the pull down strength is
configured to half.
- qcom,qpnp-ibb-pull-down-enable: A boolean property which upon set will enable
the pull down for IBB regulator. Otherwise,
it is disabled.
- qcom,qpnp-ibb-en-discharge: A boolean property which upon set will
enable discharge for IBB regulator.
Otherwise, it is kept disabled.
@ -220,12 +273,58 @@ IBB subnode optional properties:
already. If it it not specified, then
output voltage can be configured to
any value in the allowed limit.
- qcom,output-voltage-one-pulse The expected voltage (in mV) of VDISN signal
- qcom,output-voltage-one-pulse: The expected voltage (in mV) of VDISN signal
on the first SWIRE pulse. This property
can be specified only if 'qcom,swire-control'
is defined. The minimum and maximum values
are 1400mV and 7700mV.
Following properties are available only for PM660A:
- qcom,qpnp-ibb-smart-ps-enable: A boolean property which upon set
enables smart pulse skip mode for IBB
regulator. Otherwise, it is disabled.
This property is only applicable to
PM660A.
- qcom,qpnp-ibb-enable-pfm-mode: A boolean property which enables the IBB to work
in pfm mode.
- qcom,qpnp-ibb-pfm-peak-curr: The PFM peak current limit settings in mA.
Supported values are 150, 200, 250, 300,
350, 400, 450 and 500. This property is
required if the qcom,qpnp-ibb-enable-pfm-mode
is true.
- qcom,qpnp-ibb-pfm-hysteresis: The PFM hysteresis voltage threshold in mV.
Supported values are 0, 25 and 50.
This property is required if the
qcom,qpnp-ibb-enable-pfm-mode is specified.
- qcom,qpnp-ibb-overload-blank: A boolean property which upon set enables
the IBB overload blanking.
- qcom,qpnp-ibb-overload-debounce: The expected overload debounce time (in ms)
values are 1, 2, 4 and 8.
This property is required only when the
qcom,qpnp-ibb-overload-blank is set.
- qcom,qpnp-ibb-vreg-ok-debounce: The expected vreg-ok-debounce time (us)
values are 4, 8, 16 and 32.
This property is required only when the
qcom,qpnp-ibb-overload-blank is set.
- qcom,qpnp-ibb-slew-rate-config: A boolean property to configure the
ibb fast/slow slew rate.
Either qcom,qpnp-ibb-fast-slew-rate or
qcom,qpnp-ibb-slow-slew-rate has to be
specified. Otherwise the
qcom,qpnp-ibb-slow-slew-rate takes precedence
over the qcom,qpnp-ibb-fast-slew-rate.
- qcom,qpnp-ibb-fast-slew-rate: This property is required if the qcom,
qpnp-ibb-slew-rate-config property is
specified. Supported values (in us) are
100, 200, 500, 1000, 2000, 10000, 12000
and 15000.
- qcom,qpnp-ibb-slow-slew-rate: This property is required if the qcom,
qpnp-ibb-slew-rate-config property is
specified. Supported values (in us) are
100, 200, 500, 1000, 2000, 10000, 12000
and 15000.
Example:
qcom,pmi8994@3 {
qpnp-labibb-regulator {

2346
drivers/regulator/qpnp-labibb-regulator.c
View file

File diff suppressed because it is too large Load diff