Re: [PATCH v1] power: regulator: mpq8785: match the MPS MPQ8646

On Mon, Aug 24, 2026 at 05:36:40PM +0200, Vincent Jardin wrote:
>Add the MPQ8646, which handles the same case as the MPQ8785.
>
>It shares the info table, and it shares the VOUT:
>both parts report VID in VOUT_MODE while actually encoding VOUT
>as DIRECT with m=64 R=1, which mpq8785_identify_vout() already fixes up.
>
>Linux does the same thing from the other side:
>drivers/hwmon/pmbus/mpq8646.c intercepts PMBUS_VOUT_MODE in
>read_byte_data() and returns DIRECT when the chip says
>VID.
>
>Linux gained the compatible in the shared binding
>(Documentation/devicetree/bindings/hwmon/pmbus/mps,mpq8785.yaml,
>commit e7ba3115134b "dt-bindings: hwmon: pmbus: add MPS MPQ8646"),
>which groups it with mps,mpq8785 for mps,vout-fb-divider-ratio-permille,
>the same here.
>
>Verified against silicon on a board whose +0V8_VDD rail is an
>MPQ8646: the chip self-reports MODEL="MPQ8646" with VOUT_MODE=0x17.
>
>Signed-off-by: Vincent Jardin <[email protected]>
>

Reviewed-by: Peng Fan <[email protected]>