linux-kernel - [PATCH v4 0/5] Add TI TPS65214 & TPS65215 PMIC MFD Driver Support

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Message-ID: <20250131221139.342967-1-s-ramamoorthy@ti.com>
Date: Fri, 31 Jan 2025 16:11:34 -0600
From: Shree Ramamoorthy <s-ramamoorthy@...com>
To: <lgirdwood@...il.com>, <broonie@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <aaro.koskinen@....fi>,
        <andreas@...nade.info>, <khilman@...libre.com>, <rogerq@...nel.org>,
        <tony@...mide.com>, <lee@...nel.org>, <linux-omap@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
CC: <m-leonard@...com>, <praneeth@...com>
Subject: [PATCH v4 0/5] Add TI TPS65214 & TPS65215 PMIC MFD Driver Support

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.

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 "mfd: tps65219" since the driver name has not 
  been changed from TPS65219.
- Added dt-bindings patches to mfd series.
- Combined TPS65214 & TPS65215 dt-binding and mfd patches into 1 series, 
  since the series' share a dependency & these patches add more device support
- Elimate the need for TPS65214 gpio patches by registering TPS65214 as 
  "tps65215-gpio" from the MFD driver, since both have the same GPIO module
- "Remove regmap_read" patch: Drop chip_id variable
- move enum pmic_id struct from "remove regmap_read" patch to "Add support 
  for TPS65215" patch.
v2 -> v3:
- Remove duplicated of_device_id table entries
- Re-order mfd patches to clean up diff displayed
v1 -> v2:
- have any PMIC lists be in alpha-numeric order: TPS65215, then TPS65219
- Add driver prefix to chip_data struct
---
Shree Ramamoorthy (5):
  regulator: dt-bindings: Add TI TPS65215 PMIC bindings
  regulator: dt-bindings: Add TI TPS65214 PMIC bindings
  mfd: tps65219: Remove regmap_read check
  mfd: tps65219: Add support for TI TPS65215 PMIC
  mfd: tps65219: Add support for TI TPS65214 PMIC

 .../bindings/regulator/ti,tps65219.yaml       |  35 ++-
 drivers/mfd/tps65219.c                        | 279 +++++++++++++++++-
 include/linux/mfd/tps65219.h                  | 136 ++++++++-
 3 files changed, 425 insertions(+), 25 deletions(-)

-- 
2.43.0