TPS6594 is a Power Management IC which provides regulators and others features like GPIOs, RTC, watchdog, ESMs (Error Signal Monitor), and PFSM (Pre-configurable Finite State Machine). The SoC and the PMIC can communicate through the I2C or SPI interfaces. TPS6594 is the super-set device while TPS6593 and LP8764 are derivatives.
This series fixes LDO voltage conversion for TPS6594 PMIC, it adds support for its derivatives.
The features implemented are: - Regulators - Watchdog disable
Watchdog disable is not a watchdog driver implementation. Watchdog is active by default causing a reboot even if not used. This implementation allows to disable the watchdog at boot time.
This patch suite can be applied only after u-boot dts upstream is re-synced on latest Linux dts: Link: https://gist.github.com/nmenon/030b11b085473fa008145429b39fcc75
This should be applied on top of Linux patch series (for dts inheritence): Link: https://lore.kernel.org/all/20230417154832.216774-1-eblanc@baylibre.com/
Additionally, it should also be applied on top of U-Boot patch series for j784s4 initial board support: Link: https://lore.kernel.org/all/20230321141028.24456-1-hnagalla@ti.com/
Tested on boards listed below (resynched manually on Linux 6.3 dts)
Supported boards: - j721eXSOMXEVM: Link: https://www.ti.com/tool/J721EXSOMXEVM - j721S2XSOMXEVM: Link: https://www.ti.com/tool/J721S2XSOMXEVM - j7200XSOMXEVM: Link: https://www.ti.com/tool/J7200XSOMXEVM - j784S4XEVM Link: https://www.ti.com/tool/J784S4XEVM - AM62A-SKEVM: Link: https://www.ti.com/tool/SK-AM62A-LP
basic tests: => pmic list => regulator list => regulator dev reg_name_to_be_tested => regulator info => regulator value => regulator value my_test_val => regulator value Check watchdog reset is not happening when dip switch SW2 on GPIO8 is High.
History:
v1 Changes: - Link: https://lore.kernel.org/all/20230406153820.2800054-1-jneanne@baylibre.com/
v2 Changes: - added support for 2 additional boards: j721s2 and j7200 - Convert driver model tags to use new schema: 8c103c33f - Link: https://lore.kernel.org/all/20230407133347.2957435-1-jneanne@baylibre.com/
v3 Changes: - addressed v2 review comments - clear WD_EN bit in stop_watchdog() function - use generic node names for pmic and watchdog - added support for 1 additional board: j784s4
Apelete Seketeli (3): DONOTMERGE: arch: arm: dts: k3-j784s4-evm: Add TI TPS6594 PMIC support arch: arm: dts: k3-j784s4-r5-evm: Add TI TPS6594 PMIC support configs: j784s4_evm_a72: Enable TI TPS6594 PMIC support
Esteban Blanc (4): configs: j7200_evm: Enable TP6594 family PMICs configs: j721s2_evm: Enable TP6594 PMIC and AVS0 board: ti: k3-j721s2: Force TPS65941 PMIC WD disable board: ti: k3-j721s2: Enable AVS0 on board init
Jerome Neanne (10): drivers: pmic: TPS65941 add support for WD disable drivers: regulator: Fixes for TPS65941 LDO voltage conversion configs: j721e_evm: Add support for TPS65941 PMICs on j721e TI EVM board board: ti: k3-j721e: Force TPS65941 PMIC WD disable on j721e TI EVM board DONOTMERGE: arm: dts: k3-j721e: u-boot overlay for TI tps6594 PMIC DONOTMERGE: arm: dts: k3-j721e: refactor r5 board file to use Linux dts tps6594 description DONOTMERGE: arm: dts: k3-j721e: realign node name on linux dts name DONOTMERGE: arm: dts: k3-am62a7-sk: Add TI TPS6593 PMIC support DONOTMERGE: arm: dts: k3-j7200: Add TP6594 family PMICs DONOTMERGE: arch: arm: dts: k3-j721s2: Add TPS6594 family PMICs
Julien Panis (1): configs: am62ax_evm_a53: Enable support for TI TPS6593 PMIC
arch/arm/dts/k3-am62a7-sk-u-boot.dtsi | 24 +++- .../k3-j7200-common-proc-board-u-boot.dtsi | 27 ++++ .../arm/dts/k3-j7200-r5-common-proc-board.dts | 56 +++----- .../k3-j721e-common-proc-board-u-boot.dtsi | 22 +++ .../k3-j721e-r5-common-proc-board-u-boot.dtsi | 2 +- .../arm/dts/k3-j721e-r5-common-proc-board.dts | 48 +++---- .../k3-j721s2-common-proc-board-u-boot.dtsi | 37 ++++- .../dts/k3-j721s2-r5-common-proc-board.dts | 44 ++++++ arch/arm/dts/k3-j784s4-evm-u-boot.dtsi | 12 ++ arch/arm/dts/k3-j784s4-r5-evm.dts | 134 ++++++++++++++++++ board/ti/j721e/evm.c | 8 ++ board/ti/j721s2/evm.c | 18 ++- configs/am62ax_evm_a53_defconfig | 8 +- configs/j7200_evm_a72_defconfig | 6 + configs/j721e_evm_a72_defconfig | 6 + configs/j721s2_evm_a72_defconfig | 6 + configs/j721s2_evm_r5_defconfig | 6 + configs/j784s4_evm_a72_defconfig | 19 +-- drivers/power/pmic/tps65941.c | 61 ++++++++ drivers/power/regulator/tps65941_regulator.c | 71 ++++++++-- include/power/tps65941.h | 27 +++- 21 files changed, 558 insertions(+), 84 deletions(-)