The API configures the PMIC to ignore the PS_HOLD low
signal, which can be used during debugging.
Change-Id: I162657934e34da081eb897d64ffed36ad48e4eff
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
The API configures PMIC for different behaviour on hard reset.
The different options are to disable hard reset, shutdown or
restart on hard reset.
Change-Id: I214d563e904dd7e73c98a454866718a60a11b6dd
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
* changes:
mfd: pm8xxx-misc: Add pm8xxx watchdog reset control API
mfd: pm8xxx-misc: Add pm8xxx smpl based API's
mfd: pm8xxx-misc: Add the pm8xxx coincell chg API
mfd: pm8xxx-misc: Add a ISR to handle 32 kHz OSC halt
The API configures PMIC to either shutdown or reset
when the PS_HOLD line goes low.
Change-Id: I758531966c08ec5acafaeedea13b59019aafa8bc
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
Add APIs to:
1. Configure PMIC to reset/shutdown on a SMPL event
2. Set SMPL delay time
Change-Id: I9e677ebd5b4339b50e7d18e2ba0eb3af694c2d20
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
The API enables/disables the coincell charger. It also configures
the coincell charger's voltage and register settings.
The charger allows the coincell (connected to VCOIN) to charge
from VBAT.
Change-Id: Id3802e37d8100e6a72de9fd263e7d201a7a346d2
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
Merge changes from pm8921-adc to pm8xxx-adc. The
changes are modification to the BTM lookup table
to map voltage vs temperature instead of A/D word
vs temperature and reverse calibration on the
input voltage read for BTM. Fix setting the
mpp_scale value to avoid compile error.
This keeps the pm8xxx-adc and pm8921-adc
functional code as the same except for the name
change allowing future patch to remove the
pm8921-adc driver.
Change-Id: I03a0b809cd232f7fe8dff86248651c9a2593be29
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
wcd9310 CODEC supports notification of excessive current
drawn by headphone power amplifiers. When receiving notification
from CODEC through interrupt, this driver reports this event
through soc jack framework. At this point, power amplifiers will
be locked hence no audio can be heard. Locking would be removed
once user-space application deroutes playback out of headphone path.
Change-Id: If5856ead31c9a6b8d918c09f1fdc517a69d4fa26
Signed-off-by: Patrick Lai <plai@codeaurora.org>
Based on tabla platform data update the legacy mode, txfe bypass and
txfe buff mode on tx path.
CRs-Fixed: 308208
Change-Id: I96df7a213578ed8e975030dc8d4b983d03eb6518
Signed-off-by: Santosh Mardi <gsantosh@codeaurora.org>
Correct a typo where safety time is used for trickle charge time
in the code.
Add the valid ranges and power on defaults for safety timer and
trickle charge timer.
CRs-Fixed: 313652
Change-Id: I49a04c6445d197555b2a434bf4577b6e38e3d3e3
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
-Change BTM threshold table to map temperature vs
input voltage instead of temperature vs A/D word.
Apply reverse calibration to convert the input
voltage to A/D word.
-Fix representing low/high threshold voltage as
a signed int.
CRs-Fixed: 313653
Change-Id: Ib565c672130f8a246a05636c1353ef0d5b373b7d
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
Pass PWM period and other configuration from board file.
Update the LPG LUT based on the duty cycles,
pause count, and period.
Change-Id: Ie1812ae8010d986a943af6f3883b13c25bc7244c
Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>
The pmic 8921 charger has a limit of 2Amp of charge current. This limit
makes it inadequate to charge multi-cell batteries.
The pm8921 charger supports a configuration where an external charger
with more current capacity may be used to charge the battery while the
pm8921 itself can charge from a USB source. In such a configuration
the external charger source is connected to the DCIN pins, this makes the
pmic detect insertion and removal of the external charger source. In turn
this enables automatic switching on or off the usb charging path when an
external charger is plugged out or in respectively. The pm8921 charger
driver has to call start and stop on external charger. The internal
FSM and logic correctly indicates that it is charging from a DC source.
The resume charging of a fully charged battery when an external source
is present needs to start charging from an external source. The driver
relies on VBATDET comparator to signal a low.
Change-Id: Iab5439ac2408ab061bce477f4d41d7b6a8de9b38
Signed-off-by: Amir Samuelov <amirs@codeaurora.org>
PM8921 and PM8018 have a common ADC module. Difference's
are in the channel supported on individual PMIC's and
in the MPP mapping to the ADC device.
MPP configuration on PM8018 is not required. The MPP
is directly connected to the AMUX pre-mux channel.
Change-Id: I9aed3366f20e3985962119274d8b2865b7054a79
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
Alarm interrupt causes automatic wakeup even when the phone is in
powerdown state.
Change-Id: If3ae30304adba4f07284a3dc496956d67a1ae1b0
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
Instead of hard coding the flag into led driver, pass it
from board file.
While at it, re-factor the code to separate led upstream
core data with board specific data.
Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>
Conflicts:
drivers/mfd/pm8921-core.c
These new APIs allow a driver to specify its PWM period,
and raw PWM values separately using chip specific
parameters.
Change-Id: I3e9860f30a50d4f3d9c556133761d51858d2a2e3
Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>
Pmic 8921, has configurable hot and cold battery thresholds as
percent of VREF_THERM. Provide means to configure these via
platform data.
One has to set the config values in the charger platform data defined
in the board file.
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
real_fcc is the remaining capacity in the battery when the charger
driver indicates that the battery is fully charged. This value needs
to be calculated when charging ends with a fully charged battery.
The userspace can read this value via module parameter and preserve it
between restarts.
The real reason for calculating this is to indicate how much the battery
capacity has dropped w.r.t the profiled battery data use this deviation
in calculations.
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
-Add sysfs interface to read PM8921 HK/XOADC
and thermistor temperature measurements mapped
through MPP's.
-Move PM8921 ADC from directory /drivers/mfd to
/drivers/hwmon for userspace clients to read ADC
through hwmon.
CRs-Fixed: 302365
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
Conflicts:
drivers/mfd/Kconfig
Use device id passed from platform data to register
for sysfs.
Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>
Conflicts:
drivers/mfd/pm8xxx-irq.c
Support configuring a MPP to pre-defined AMUX6 channel
which is used for dynamic mapping of the MPP-AMUX channel
for clients having multiple MPP's to read ADC.
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
The userspace should be updated periodically to update it with the
charging progress.
Create a delayed_work and schedule it every update_time milliseconds
to notify the userspace that power supply changed. The userspace
is then supposed to read the power supply properties and know about
the charging progress.
CRs-Fixed: 305572
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Since the BMS can calculate FCC based on the charge cycles and age, use it
to report ENERGY_FULL property in the power supply framework.
CRs-Fixed: 304029
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
The reset interrupt in the pmic indicates the pmic will shutdown
the msm in few seconds - it does so by lowering the reset_n line
to the msm.
When this interrupt is triggered it is required that no more ssbi
transactions are initiated and the msm should cleanup and prepare
for the impending shutdown. There is no need to lower ps_hold in
this case as the pmic will shutdown the msm regardless.
Also since we don't want any ssbi transactions, force shutdown
nonboot cpus. This will prevent ssbi transactions to the pmic for
lower/raising nonboot cpu's voltages as they enter/exit idle states.
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Currently the battery data is passed via the board file. Instead
read the battery id and choose the appropriate battery data to use.
CRs-Fixed: 304376
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
-Modify the existing PM8921 ADC read api to include
reading ADC mapped to devices on the MPP.
-Modify scaling function to support XOTHERM and PATHERM
on PM8921.
-Remove post scaling functions for external charger
as its not used on PM8921.
CRs-Fixed: 307164
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
Add support for the Qualcomm PM8018 PMIC chip. The core driver
will communicate with the PMIC chip via the MSM SSBI bus.
Initial support is provided for: IRQ, GPIO, MPP, RTC, Power Key,
Misc, and Debug
Signed-off-by: David Collins <collinsd@codeaurora.org>
Implement thermal mitigation in the charger driver. The userspace
daemon can get the battery temperature from
/sys/class/power_supply/battery/temp
and set the mitigation levels on
/sys/module/pm8921_charger/parameters/thermal_mitigation
The battery driver supports 4 levels [0 through 3]. O being normal
and 3 being extreme thermal mitigation.
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Add support for the Qualcomm PM8821 PMIC chip. The core driver
will communicate with the PMIC chip via the MSM SSBI bus.
Initial support is provided for: IRQ, MPP, and Debug
Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>
A big struct of pm8xxx_pwm_config is not easy to manage. Split it
to smaller structs and make the period struct public.
Signed-off-by: Willie Ruan <wruan@codeaurora.org>
The pmic charger can take measures such as reducing charing
current if the input charger voltage falls below certain point.
Create api to use this feature.
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Provide mechanism to set trickle, weak voltage and currents via
board file. These settings are used to configure the hardware
controlled auto trickle charging.
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
pm8921 has a special hardware to monitor the battery temperature. Use
this block to program the cool and warm thresholds and reduce charging
current accordingly.
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
BTM (Battery Temperature Module) thermistor lookup
table is computed based on the resistor divider's
used on the board and the specifications of the
thermistor. Its a function of temperature vs the
ADC code for PM8921 ADC and is used to set the
cool/warm thresholds on the BTM.
CRs-Fixed: 299646
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
Use adc reading on the battery_id resistor to check if a battery
is valid. If it is not disable charging.
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Implement API's to
- set maximum battery charging current
- disable drawing current from the source
- detect if battery is being charged and which charger source
is charging the battery
- get battery temperature
- detect battery is present
- detect usb is present
- detect dc is present
- set max trickle charging time
- set max auto charging time
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Add api to enable/disable battery charging. This api will help
start/stop current flowing in the battery for charging purposes, but
it does not affect the current the device draws from a charger source.
CRs-Fixed: 300786
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
WCD9310 has four micbiases and each of them can be programmed to get its
power source from one of 3 available cfilters. Each cfilter can be
programmed to different voltage levels. Essentially, on WCD9310, a user
can have up to three different voltage levels to power various analog
microphones and digital microphones. As it is now, micbias voltage level
of WCD9310 is left to default value. Micbias and cfilter mapping is managed
by codec driver. Different board design can have different micbias
arrangement. Micbias configuration of wcd9310 CODEC for 8960 CDP/MTP/FLUID
is properly defined in this patch.
Signed-off-by: Patrick Lai <plai@codeaurora.org>
Added method to msm_charger to allow programming of max source
current. Created struct for platform data to be passed into
pmic8058_charger
Signed-off-by: Terence Hampson <thampson@codeaurora.org>
