i.MX8MM operating points

[pierluigi_p]

Dear NXP team,

in the file imx8mm.dtsi, the opp-table reports the same 3 operating points documented in tabled 10 of the SoC datasheet: 1.2, 1.6 and 1.8 GHz

However, in the file clk-pll14xx.c, the table imx_pll1416x_tbl reports also additional clock frequencies.

Can these additional frequencies be introduced in the opp-table to farther reduce the clock frequency ?

If yes, which values should be used for the properties opp-microvolts, opp-supported-hw, clock-latency-ns ?

Thanks

Best Regards

Pier

[Zhiming_Liu · Accepted solution]

Hi @pierluigi_p 

Have sent your the patch.

[PetersonJA68]

Was the patch mentioned here ever provided publicly?  We are working on a new device using the iMX8MM and are interested in running at operating points below 1.2 GHz.

[m_karabela]

I would love to see this patch. I'm interested in lowest possible power consumption of imx8mm.
Can you share it?

[dev_pcs]

@Zhiming_Liu can you send me also the patch?

[VilleS]

Can you share the patch publicly also?

[jxb4256]

Can you please send this patch to me too?

[pierluigi_p]

Thanks @Zhiming_Liu,

one last question: can I share the patch with customers ?

Thanks

Best Regards

Pier

[Zhiming_Liu]

Yes, you can share it.

[gary_bisson]

Hi,

In that case, can you share that patch here directly?

Also, could you elaborate as to why this isn't in the tree in the first place?

Regards,
Gary

[pierluigi_p]

Hi @Zhiming_Liu ,

can this approach be used for NANO too ?

Thanks

Best Regards

Pier