On Thu, Apr 2, 2020 at 12:57 PM Markus Reichl <m.reichl@xxxxxxxxxxxxx> wrote: > > Hi Suniel, > > Am 02.04.20 um 06:39 schrieb Suniel Mahesh: > > On Wed, Apr 1, 2020 at 3:40 PM Markus Reichl <m.reichl@xxxxxxxxxxxxx> wrote: > >> > >> Hi Suniel, > >> > >> Am 01.04.20 um 06:53 schrieb Suniel Mahesh: > >> > Hi Markus, Levin and all, > >> > > >> > Can you guys please suggest me on my requirement. > >> > > >> > rk3399-roc-pc board has a Power Key/button. As per the schematics this > >> > Power Key/button > >> > is connected to GPIO0_A5. > >> > >> And to PWRON of RK808. > >> > >> > > >> > My requirement is can I use this button for board powerup (especially > >> > in linux when we issue > >> > "poweroff" command, the board shuts down and it should power back on > >> > after I press the Power Key/button). > >> > > >> > For the above to happen, I think this Power Key/button be connected to > >> > PMIC RK808-D IC, am i correct ? > >> > >> Yes, see P.16 of ROC-3399-PC-V10-A-20180804 schematic. > >> > > >> > In the schematics, it is not very clear as if such arrangement is > >> > there (though it says it can be an option in > >> > RK3399_BOX_REF_V13_20180821.pdf). I am attaching the document. > >> > > >> > Please suggest/comment on my requirement. > >> > >> Should work, everything is in place, just press long enough ;-). > > > > Thanks Markus for your help. its working. > > > >> > >> Btw. could you just revert your recent U-Boot commit > >> checking GPIO0_A5 that prevents unattended booting? > > > > we have sent a patch series(5 patches) which takes care of the above > > issue. attaching patchwork links: > > https://patchwork.ozlabs.org/patch/1258093/ > > I looked at your > [v2,2/5] roc-rk3399-pc: Set low power leds, power key only if POR [1] > and it seems to prevent unattended boot after a power interruption > (brown out), which is a problem for a device with a built in board > and no access to power key or operator. > I really would prefer straight boot without human intervention in > all cases. > reverted the patch, except diy-led(RED LED) is kept as it is. This indicates the board is in full power mode. Thanks > Thanks, > -- > Markus > > [1] https://patchwork.ozlabs.org/patch/1258094/ > > > > > Suniel > >> > >> Thanks, > >> -- > >> Markus > >> > >> > > >> > Thanks and regards > >> > Suniel > >> > > > _______________________________________________ Linux-rockchip mailing list Linux-rockchip@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-rockchip
