On Thu, Apr 21, 2022 at 09:56:03AM +0300, Tony Lindgren wrote: > Hi, > > * Drew Fustini <dfustini@xxxxxxxxxxxx> [220414 19:24]: > > TI AM437x SoCs support isolation of the IOs so that control is taken > > from the peripheral they are connected to and overridden by values > > present in the control register for that pad. This series documents a > > new property 'ti,set-io-isolation' and updates the wkup_m3_ipc driver to > > inform the CM3 firmware when that property is set. > > Care to list what hardware and board revisions you're able to test deep > sleep with? > > Seems like my am437x-evm is too old for this where the board layout > does not match the schematics for removing a resistor to enable this. > > Just wondering if I can still enable tests for this somehow :) > > Regards, > > Tony Do you know what revision of the am437x-gp-evm that you have? The AM437X_GP_EVM_3K0006_SCHEMATIC_REV1_5B schematic [1] for the AM437x-GP-EVM shows that the EN pin on the TPS51200 is connected to SoC ball N25 which is GPIO5_7. Unfortunately, the only AM437x board that I have is the AM437x IDK [2] which unfortunately does not have the TSP51200 EN pin connected to the the SoC. In addition, the am437x-gp-evm is the only board that is allowed to enable off mode due to am43xx_check_off_mode_enable() in arch/arm/mach-omap2/pm33xx-core.c Thank you, Drew [1] https://www.ti.com/lit/zip/tidrc79 [2] https://www.ti.com/lit/zip/sprr396
