[v4,0/4] Add TI TPS65214 & TPS65215 Regulator Support

Message

Shree Ramamoorthy Feb. 12, 2025, 7:11 p.m. UTC

TPS65214 and TPS65215 are Power Management Integrated Circuits (PMICs) that
have significant register map overlap with TPS65219 and each other. The 
series introduces the 2 new PMICs and restructures the existing driver to 
support multiple devices.

- TPS65214, TPS65215, and TPS65219 each have 3 Buck regulators
- TPS65214 has 2 LDOS and 1 GPO, whereas TPS65219 has 4 LDOs and 2 GPOs.
- TPS65214's LDO1 maps to TPS65219's LDO3.
- A key difference between TPS65215 & TPS65214 are the LDO current and
  voltage output ranges and the configurable options available.
- TPS65215 has 2 LDOs, whereas TPS65219 has 4 LDOs.
- TPS65215's LDO2 maps to TPS65219's LDO3.
- TPS65215 has 1 GPO, whereas TPS65219 has 2 GPOs.

Dependencies:
- Patches 2 & 3 depend on https://lore.kernel.org/all/[e-mail]/
- Patch 4 depends on https://lore.kernel.org/all/[e-mail]/

TPS65214 TRM: https://www.ti.com/lit/pdf/slvud30
TPS65215 TRM: https://www.ti.com/lit/pdf/slvucw5/

AM62L + TPS65214 Test Logs:
https://gist.github.com/ramamoorthyhs/0793f7813332d94423ca1baee02f62c9
AM62L + TPS65215 Test Logs:
https://gist.github.com/ramamoorthyhs/7560eca6110fafc77b51894fa2c0fd22

---
Change Log:
v3 -> v4:
- Update commit header to be "regulator: tps65219" since the driver name has not 
  been changed from TPS65219.
- Combined TPS65214 & TPS65215 regulator patches into 1 series, 
  since the series' share a dependency & these patches have overlapping changes
- Drop tps65215_regulator_irq_types empty array and instead: set irq_types to NULL and dev_irq_size to 0

v2 -> v3:
dt-bindings: 
- Alphanumeric order for PMIC list
- add allOf:if:then: which will disallow :false two LDOs and their supplies

regulator.c:
- Revert addition of 2 probe helper functions
- Add empty tps65215_regulator_irq_types struct to minimize loops in probe
- Consolidate patches to define and use func/structs in the same patches to
  prevent build error due to no users of the defined functions
- Apply reverse xmas tree style to variable defintions in functions
- Remove unnecessary new lines & add new line after declarations

v1 -> v2:
- have any PMIC lists be in alpha-numeric order: TPS65215, then TPS65219
- Add driver prefix to chip_data struct
- Have probe() helper functions use dev_err_probe instead of dev_err() to 
  log the error code in a human readable format & combined with return, it 
  saves a few LoC since { } can be removed.
- Add error handling of 'irq_data' in probe() as previously done.
---
Shree Ramamoorthy (4):
  regulator: tps65219: Update struct names
  regulator: tps65219: Add support for TPS65215 regulator resources
  regulator: tps65219: Add support for TPS65215 Regulator IRQs
  regulator: tps65219: Add TI TPS65214 Regulator Support

 drivers/regulator/Kconfig              |  12 +-
 drivers/regulator/tps65219-regulator.c | 242 ++++++++++++++++++++-----
 2 files changed, 202 insertions(+), 52 deletions(-)