Re: [PATCH 0/1] pmic on imx8mm

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

Hi,

On 04.01.23 06:23, Johannes Schneider wrote:
> current(?) imx8mm EVKs come with a different PMIC: used to be "rohm,bd71847", which is now replaced by "nxp,pca9450a" on the LPDDR4 variant at least

So you have a LPDDR4 EVK.

> the register settings etc where "backported" from current u-boot sources for the EVK
> 
> Note: not sure if the changes should go in the ddr4-evk.dts or elsewhere;

Why change the DDR4 EVK's device tree?

> what about backwards compatibility? = users/holders of the EVKs with the bd71847 IC?

It's a new device, so give it a new device tree and a new DT compatible.

Thanks,
Ahmad

> 
> 
> Johannes Schneider (1):
>   arm64: dts: imx8mm: set PCA9450a as PMIC
> 
>  .../boot/dts/freescale/imx8mm-ddr4-evk.dts    | 124 ++++++++++++++++++
>  1 file changed, 124 insertions(+)
> 

-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |