topic Re: Linux driver for PF1550 and iMX6ULZ in Power Management

Linux driver for PF1550 and iMX6ULZ

ian3 — Mon, 24 Aug 2020 17:27:33 GMT

Could somebody clarify which linux driver to use for the the PF1550 with the iMX6ULZ and where I can find an example device tree binding.

Thanks

Ian

Re: Linux driver for PF1550 and iMX6ULZ

Yuri — Tue, 25 Aug 2020 04:50:00 GMT

ian@etwoc.com

Hello,

PMIC PF1550 is supported by NXP Linux BSP. Use section 2.5.2 (PMIC PF Regulator)

of i.MX Linux Reference Manual (Rev. L5.4.24_2.1.0) for more details.

Embedded Linux for i.MX Applications Processors | NXP

Regards,

Yuri.

Re: Linux driver for PF1550 and iMX6ULZ

ian3 — Tue, 25 Aug 2020 08:40:08 GMT

In L5.4.24_2.1.0 I see the pf1550-regulator-rpmsg driver but not the pf1550 client driver. I just checked and the client driver was available in the 4.19.35_1.1.0 release (pf1550.c) but has been removed in latest BSP. I also noticed the pf1550 charger driver was removed in the latest release, pf1550-charger.c in /drivers/power/supply.

Do I have to use the rpmsg drive now, even in a iMX6ULZ application? What about the battery charger driver as that has now been removed?

Thanks

Ian

Re: Linux driver for PF1550 and iMX6ULZ

norman_stetter — Wed, 07 Oct 2020 13:00:36 GMT

I too would like to know what the status of the PF1550 driver is.

Re: Linux driver for PF1550 and iMX6ULZ

Yuri — Tue, 13 Oct 2020 02:43:45 GMT

@ian3
Hello,

Yes, It has been removed from L5.4.24_2.1.0 release. However, if customers are using pf1550 with i.MX6ULZ then they can still port/integrate those drivers in their BSP. The BSP team has been requested about reasons behind the removal of the driver; I will inform You in case of an update.

Regards,
Yuri.