[v10,0/2] power: supply: Add STC3117 Fuel Gauge

Adds initial support for the STC3117 fuel gauge.

Output of test_power_supply_properties.sh

TAP version 13                                                                  
1..33                                                                           
# Testing device stc3117-battery                                                
ok 1 stc3117-battery.exists                                                     
ok 2 stc3117-battery.uevent.NAME                                                
ok 3 stc3117-battery.sysfs.type                                                 
ok 4 stc3117-battery.uevent.TYPE                                                
ok 5 stc3117-battery.sysfs.usb_type # SKIP                                      
ok 6 stc3117-battery.sysfs.online # SKIP                                        
# Reported: '1' ()                                                              
ok 7 stc3117-battery.sysfs.present                                              
# Reported: 'Discharging'                                                       
ok 8 stc3117-battery.sysfs.status                                               
# Reported: '38' % ()                                                           
ok 9 stc3117-battery.sysfs.capacity                                             
ok 10 stc3117-battery.sysfs.capacity_level # SKIP                               
ok 11 stc3117-battery.sysfs.model_name # SKIP                                   
ok 12 stc3117-battery.sysfs.manufacturer # SKIP                                 
ok 13 stc3117-battery.sysfs.serial_number # SKIP                                
ok 14 stc3117-battery.sysfs.technology # SKIP                                   
ok 15 stc3117-battery.sysfs.cycle_count # SKIP                                  
ok 16 stc3117-battery.sysfs.scope # SKIP                                        
ok 17 stc3117-battery.sysfs.input_current_limit # SKIP                          
ok 18 stc3117-battery.sysfs.input_voltage_limit # SKIP                          
# Reported: '3704000' uV (3.704 V)                                              
ok 19 stc3117-battery.sysfs.voltage_now                                         
ok 20 stc3117-battery.sysfs.voltage_min # SKIP                                  
ok 21 stc3117-battery.sysfs.voltage_max # SKIP                                  
# Reported: '3200000' uV (3.2 V)                                                
ok 22 stc3117-battery.sysfs.voltage_min_design                                  
# Reported: '4200000' uV (4.2 V)                                                
ok 23 stc3117-battery.sysfs.voltage_max_design                                  
# Reported: '325000' uA (325 mA)                                                
ok 24 stc3117-battery.sysfs.current_now                                         
ok 25 stc3117-battery.sysfs.current_max # SKIP                                  
ok 26 stc3117-battery.sysfs.charge_now # SKIP                                   
ok 27 stc3117-battery.sysfs.charge_full # SKIP                                  
# Reported: '3000000' uAh (3 Ah)                                                
ok 28 stc3117-battery.sysfs.charge_full_design                                  
ok 29 stc3117-battery.sysfs.power_now # SKIP                                    
ok 30 stc3117-battery.sysfs.energy_now # SKIP                                   
ok 31 stc3117-battery.sysfs.energy_full # SKIP                                  
ok 32 stc3117-battery.sysfs.energy_full_design # SKIP                           
ok 33 stc3117-battery.sysfs.energy_full_design # SKIP                           
# Totals: pass:12 fail:0 xfail:0 xpass:0 skip:21 error:0                        

v9 -> v10

- Use error code instead of arbitrary values
- Use Co-developed-by tag 

Link for V9: https://lore.kernel.org/linux-pm/20241213063813.32371-1-bhavin.sharma@siliconsignals.io/T/#t

v8 -> v9                                                                        
                                                                                
- Corrected the error message                                                   
                                                                                
Link for V8: https://lore.kernel.org/linux-pm/20241210080954.5067-1-bhavin.sharma@siliconsignals.io/T/#t
                                                                                
v7 -> v8                                                                        
                                                                                
- Add output of test_power_supply_properties.sh script.                         
- Change 0X to 0x in macros.                                                    
- Fix typos and Specify units in property comments.                             
- Remove stc3117_update_battery_status function.                                
- Convert voltage and current from mV/mA to uV/uA.                              
- Represent temperature in tenths of a degree Celsius (1/10 °C).                
- Export average current and open-circuit voltage (OCV).                        
- Use devm_delayed_work_autocancel.                                             
                                                                                
Link for V7: https://lore.kernel.org/linux-pm/20241202094328.14395-1-bhavin.sharma@siliconsignals.io/T/#t
                                                                                
v6 -> v7                                                                        
                                                                                
- Removes extra spaces.                                                         
- Fixes error handling.                                                         
- Fixes the logic for checking battery status.                                  
- Fixes typos.                                                                  
- Removes unnecessary commas.                                                   
                                                                                
Link for v6: https://lore.kernel.org/linux-pm/20241130094531.14885-2-bhavin.sharma@siliconsignals.io/T/#t
                                                                                
v5 -> v6                                                                        
                                                                                
- Use shunt-resistor-micro-ohms property instead of sense-resistor.             
- Remove the battery node from the binding examples.                            
- Add interrupt bindings to the example.                                        
- Correct the Signed-off-by (SoB) order in the commit.                          
                                                                                
Link for v5: https://lore.kernel.org/linux-pm/20241129114200.13351-1-bhavin.sharma@siliconsignals.io/T/#t
                                                                                
v4 -> v5                                                                        
                                                                                
- Fix variable names                                                            
- Limit code line length to 80 columns                                          
- Add interrupt and monitor-battery properties to bindings                      
- Correct error handling with return dev_err_probe()                            
                                                                                
Link for v4: https://lore.kernel.org/linux-pm/21c08a45-34f1-443c-97d4-6baf9fa01b67@kernel.org/T/#t
                                                                                
v3 -> v4                                                                        
                                                                                
- Added support for current, soc, temp, and status properties.                  
- Addressed comments and feedback provided by Krzysztof and Sebastian.          
                                                                                
Link for v3: https://lore.kernel.org/linux-pm/20240205051321.4079933-1-bhavin.sharma@siliconsignals.io/T/#t
                                                                                
v2 -> v3                                                                        
                                                                                
- Resolved DTC warnings and errors                                              
- Formatted the changelogs                                                      
- Added monitored battery properties                                            
- Replaced 'additionalProperties' with 'unevaluatedProperties'                  
- Replaced '&i2c6' with 'i2c'                                                   
                                                                                
Link for v2: https://lore.kernel.org/linux-pm/202401080530.0hMWnrIg-lkp@intel.com/T/#t
                                                                                
v1 -> v2                                                                        
                                                                                
- String value is redundantly quoted with any quotes (quoted-strings)           
- Found character '\t' that cannot start any token                              
                                                                                
Link for v1: https://lore.kernel.org/linux-pm/46bba29c-330d-417d-ad84-ceb5207fdb55@wanadoo.fr/T/#t
                                                                                
Hardevsinh Palaniya(1):                                                         
  dt-bindings: power: supply: Add STC3117 Fuel Gauge                            
                                                                                
Bhavin Sharma (2):                                                              
  power: supply: Add STC3117 fuel gauge unit driver                             

 .../bindings/power/supply/st,stc3117.yaml     |  74 +++
 MAINTAINERS                                   |   8 +
 drivers/power/supply/Kconfig                  |   7 +
 drivers/power/supply/Makefile                 |   1 +
 drivers/power/supply/stc3117_fuel_gauge.c     | 608 ++++++++++++++++++
 5 files changed, 698 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/supply/st,stc3117.yaml
 create mode 100644 drivers/power/supply/stc3117_fuel_gauge.c