linux-kernel - [RFC PATCH 0/5] Add TI TPS65219 PMIC support for AM642 SK board.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20220613090604.9975-1-jneanne@baylibre.com>
Date:   Mon, 13 Jun 2022 11:05:59 +0200
From:   Jerome NEANNE <jneanne@...libre.com>
To:     lgirdwood@...il.com, broonie@...nel.org, robh+dt@...nel.org,
        nm@...com, kristo@...nel.org, will@...nel.org,
        lee.jones@...aro.org, jneanne@...libre.com
Cc:     khilman@...libre.com, narmstrong@...libre.com, msp@...libre.com,
        j-keerthy@...com, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [RFC PATCH 0/5] Add TI TPS65219 PMIC support for AM642 SK board.

1-Regulators: full implementation
Visual check: cat /sys/kernel/debug/regulator/regulator_summary
Validation: userspace-consumer and virtual-regulator required
to test further

enable/disable:
cat /sys/devices/platform/userspace-consumer-VDDSHV_SD_IO_PMIC/state
echo disabled > /sys/devices/platform/userspace-consumer-VDDSHV_SD_IO_PMIC/state
echo enabled > /sys/devices/platform/userspace-consumer-VDDSHV_SD_IO_PMIC/state

change voltage:
cat /sys/devices/platform/regulator-virtual-ldo1/min_microvolts
echo 1000000 > /sys/devices/platform/regulator-virtual-ldo1/min_microvolts
echo 3000000 > /sys/devices/platform/regulator-virtual-ldo1/max_microvolts

Voltage changes monitored on LDO1 output on TP84 for k3-am642-sk board

2-Low power Mode (STBY)
A regulator set_mode with a standby mode is implemented (not tested)

3-Reset WARM/COLD
implemented not tested

4-SD Card VSEL_SD
Implemented, appears in summary as: tps65219-LDO1-SEL-SD GPIO control
not tested

5-Interrupt Pin (nINT)
Not implemented

6-SW Shutdown
Implemented not tested
Note: enters in competition with other source during probe

7-PB Startup and Shutdown
Can be derived from 65217/8 implementation but postponed,
interrupt support required first.

Jerome NEANNE (5):
  regulator: dt-bindings: Add TI TPS65219 PMIC bindings
  mfd: drivers: Add TI TPS65219 PMIC support
  regulator: drivers: Add TI TPS65219 PMIC regulators support
  arm64: Kconfig: Introduce CONFIG_MFD_TPS65219 and
    CONFIG_REGULATOR_TPS65219
  arm64: dts: ti: Add TI TPS65219 PMIC support for AM642 SK board.

 .../bindings/regulator/ti,tps65219.yaml       | 146 ++++++++
 arch/arm64/boot/dts/ti/k3-am642-sk.dts        | 102 ++++++
 arch/arm64/configs/defconfig                  |   2 +
 drivers/mfd/Kconfig                           |  15 +
 drivers/mfd/Makefile                          |   1 +
 drivers/mfd/tps65219.c                        | 296 ++++++++++++++++
 drivers/regulator/Kconfig                     |   9 +
 drivers/regulator/Makefile                    |   1 +
 drivers/regulator/tps65219-regulator.c        | 334 ++++++++++++++++++
 include/linux/mfd/tps65219.h                  | 245 +++++++++++++
 10 files changed, 1151 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
 create mode 100644 drivers/mfd/tps65219.c
 create mode 100644 drivers/regulator/tps65219-regulator.c
 create mode 100644 include/linux/mfd/tps65219.h

-- 
2.17.1