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

[Zhipeng Wang]

> 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.

So this patch corrects the Kconfig to match the actual hardware architecture.

Best regards,
Zhipeng
> >
> > Signed-off-by: Zhipeng Wang <zhipeng.wang_1@xxxxxxx>
> > ---
> >  drivers/pmdomain/imx/Kconfig | 11 +++++++----
> >  1 file changed, 7 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/pmdomain/imx/Kconfig
> > b/drivers/pmdomain/imx/Kconfig index 00203615c65e..9168d183b0c5
> 100644
> > --- a/drivers/pmdomain/imx/Kconfig
> > +++ b/drivers/pmdomain/imx/Kconfig
> > @@ -10,15 +10,18 @@ config IMX_GPCV2_PM_DOMAINS
> >  	default y if SOC_IMX7D
> >
> >  config IMX8M_BLK_CTRL
> > -	bool
> > -	default SOC_IMX8M && IMX_GPCV2_PM_DOMAINS
> > +	tristate "i.MX8M BLK CTRL driver"
> > +	depends on SOC_IMX8M
> > +	depends on IMX_GPCV2_PM_DOMAINS
> >  	depends on PM_GENERIC_DOMAINS
> >  	depends on COMMON_CLK
> > +	default y
> >
> >  config IMX9_BLK_CTRL
> > -	bool
> > -	default SOC_IMX9 && IMX_GPCV2_PM_DOMAINS
> > +	tristate "i.MX93 BLK CTRL driver"
> > +	depends on SOC_IMX9
> >  	depends on PM_GENERIC_DOMAINS
> > +	default y
> >
> >  config IMX_SCU_PD
> >  	bool "IMX SCU Power Domain driver"
> > --
> > 2.34.1
> >