Re: [PATCH v13 05/12] spmi: Implement spmi_subdevice_alloc_and_add() and devm variant

From: Abel Vesa

Date: Thu Sep 17 2026 - 13:17:02 EST


On 26-07-21 11:36:19, AngeloGioacchino Del Regno wrote:
> Some devices connected over the SPMI bus may be big, in the sense
> that those may be a complex of devices managed by a single chip
> over the SPMI bus, reachable through a single SID.
>
> Add new functions aimed at managing sub-devices of a SPMI device
> spmi_subdevice_alloc_and_add() and a spmi_subdevice_remove() for
> adding a new subdevice and removing it respectively, and also
> add their devm_* variants.
>
> The need for such functions comes from the existence of those
> complex Power Management ICs (PMICs), which feature one or many
> sub-devices, in some cases with these being even addressable on
> the chip in form of SPMI register ranges.
>
> Examples of those devices can be found in both Qualcomm platforms
> with their PMICs having PON, RTC, SDAM, GPIO controller, and other
> sub-devices, and in newer MediaTek platforms showing similar HW
> features and a similar layout with those also having many subdevs.
>
> Also, instead of generally exporting symbols, export them with a
> new "SPMI" namespace: all users will have to import this namespace
> to make use of the newly introduced exports.
>
> Reviewed-by: Jonathan Cameron <jonathan.cameron@xxxxxxxxxx>
> Tested-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx> # on SM8650-QRD
> Acked-by: Stephen Boyd <sboyd@xxxxxxxxxx>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxx>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>

Reviewed-by: Abel Vesa <abel.vesa@xxxxxxxxxxxxxxxx>