[PATCH] pmdomain: imx: Make IMX8M/IMX9 BLK_CTRL tristate

[Zhipeng Wang]

> On Mon, Apr 13, 2026 at 03:08:20AM +0000, Zhipeng Wang wrote:
> > > On Fri, Apr 10, 2026 at 06:27:35PM +0900, Zhipeng Wang wrote:
> > > > Convert IMX8M_BLK_CTRL and IMX9_BLK_CTRL from bool to tristate to
> > > > allow building as loadable modules.
> > > >
> > > > Add prompt strings to make these options visible and configurable
> > > > in menuconfig, keeping them enabled by default on appropriate
> platforms.
> > > >
> > > > Also remove the IMX_GPCV2_PM_DOMAINS dependency from
> > > IMX9_BLK_CTRL
> > > > since i.MX93 doesn't use GPCv2 power domains.
> > >
> > > Does it cause build failure at GPCv2 platform? Or previous
> > > dependency actually wrong.
> > >
> > > Frank
> >
> > Hi Frank,
> >
> > The previous dependency was actually wrong. Here's why:
> >
> > i.MX93 uses a different power domain architecture compared to i.MX8M
> series:
> >
> > - i.MX8M uses GPCv2 (General Power Controller v2) for power domain
> > management
> > - i.MX93 uses BLK_CTRL directly without GPCv2.
> >
> > The IMXGPCV2PMDOMAINS dependency was likely copied from
> IMX8MBLKCTRL
> > configuration when IMX9BLKCTRL was initially added, but it was
> > incorrect from the beginning since i.MX93 hardware doesn't have GPCv2 at
> all.
> 
> Okay, please add such information into commit message. Some
> 
> Frank
Hi Frank,

Thanks! I've added the detailed explanation to the commit message and 
sent v2.

Best regards,
Zhipeng