Re: [PATCH 2/5] cpufreq: sun50i: Add D1 support

[Jernej Škrabec]

On Thursday, December 14, 2023 5:40:10 PM CET Andre Przywara wrote:
> On Thu, 14 Dec 2023 17:29:30 +0100
> Jernej Škrabec <jernej.skrabec@xxxxxxxxx> wrote:
> 
> Hi,
> 
> > On Thursday, December 14, 2023 11:33:39 AM CET Brandon Cheo Fusi wrote:
> > > Add support for D1 based devices to the Allwinner H6 cpufreq
> > > driver
> > > 
> > > Signed-off-by: Brandon Cheo Fusi <fusibrandon13@xxxxxxxxx>
> > > ---
> > >  drivers/cpufreq/sun50i-cpufreq-nvmem.c | 1 +
> > >  1 file changed, 1 insertion(+)
> > > 
> > > diff --git a/drivers/cpufreq/sun50i-cpufreq-nvmem.c b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
> > > index 32a9c88f8..ccf83780f 100644
> > > --- a/drivers/cpufreq/sun50i-cpufreq-nvmem.c
> > > +++ b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
> > > @@ -160,6 +160,7 @@ static struct platform_driver sun50i_cpufreq_driver = {
> > >  
> > >  static const struct of_device_id sun50i_cpufreq_match_list[] = {
> > >  	{ .compatible = "allwinner,sun50i-h6" },
> > > +	{ .compatible = "allwinner,sun20i-d1" },  
> > 
> > This is not needed, as there is no functionality change.
> 
> That was my first reflex, too, but this is the *board* (fallback)
> compatible, listed in the root node, so you have to list it here for each
> SoC, together with the respective blocklist in the next patch.
> We are doing the same for the H616, and actually also need that for the
> H618. Weird, I know, but last time I check not easy to fix.

Oh, that's bad. What's the rationale to have so complicated probe method?
Why not using standard, compatible based one?

Best regards,
Jernej