RE: [PATCH v18 4/8] mfd: p3h2x4x: Add driver for NXP P3H2x4x i3c hub and on-die regulator

From: Lakshay Piplani

Date: Fri Sep 11 2026 - 05:52:42 EST



NXP Public
> -----Original Message-----
> From: Lakshay Piplani <lakshay.piplani@xxxxxxx>
> Sent: Thursday, September 3, 2026 11:51 AM
> To: linux-kernel@xxxxxxxxxxxxxxx; linux-i3c@xxxxxxxxxxxxxxxxxxx;
> alexandre.belloni@xxxxxxxxxxx; krzk+dt@xxxxxxxxxx; robh@xxxxxxxxxx;
> conor+dt@xxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; broonie@xxxxxxxxxx;
> lee@xxxxxxxxxx; Frank Li <frank.li@xxxxxxx>; lgirdwood@xxxxxxxxx
> Cc: Vikash Bansal <vikash.bansal@xxxxxxx>; Priyanka Jain
> <priyanka.jain@xxxxxxx>; Aman Kumar Pandey
> <aman.kumarpandey@xxxxxxx>; Lakshay Piplani <lakshay.piplani@xxxxxxx>
> Subject: [PATCH v18 4/8] mfd: p3h2x4x: Add driver for NXP P3H2x4x i3c hub
> and on-die regulator
>
> From: Aman Kumar Pandey <aman.kumarpandey@xxxxxxx>
>
> Add core MFD support for the NXP P3H2x4x
> (P3H2440/P3H2441/P3H2840/P3H2841) family of multiport I3C hub devices.
> These devices connect to a host via I3C/I2C/SMBus and expose multiple
> downstream target ports.
>
> All variants share the same register interface. The driver reads the target-port
> count from DEV_CAPAB and applies the DT configuration, so no per-compatible
> driver data is required.
>
> Signed-off-by: Aman Kumar Pandey <aman.kumarpandey@xxxxxxx>
> Signed-off-by: Vikash Bansal <vikash.bansal@xxxxxxx>
> Signed-off-by: Lakshay Piplani <lakshay.piplani@xxxxxxx>
> Reviewed-by: Frank Li <Frank.Li@xxxxxxx>

Hi Lee,

A gentle follow-up on this MFD patch. Could you please review it when you have a chance?

Regards
Lakshay