[PATCH v4 7/8] soc: starfive: Add socinfo driver for JHB100 SoC

Changhuang Liang changhuang.liang at starfivetech.com
Wed Aug 12 03:37:16 PDT 2026


Hi, Conor

Thanks for the review.

> On Tue, Aug 11, 2026 at 05:36:19AM +0000, Changhuang Liang wrote:
> 
> > > On Sat, Aug 08, 2026 at 06:50:53PM -0700, Changhuang Liang wrote:
> 
> > > > +static int __init starfive_socinfo_init(void) {
> > > > +	struct soc_device_attribute *attrs;
> > > > +	struct soc_device *soc_dev;
> > > > +	const char *machine = NULL;
> > > > +	struct device_node *np;
> > > > +	struct regmap *regmap;
> > > > +	char rev_char;
> > > > +	u32 rev_id;
> > > > +	int ret;
> > > > +
> > > > +	np = of_find_compatible_node(NULL, NULL,
> > > > +"starfive,jhb100-sys0-syscon");
> > >
> > > Remind me again why this is not just probed as an mfd cell from the
> > > syscon driver?
> > >
> > > (Hint: please put this info in the commit message).
> >
> > The discussion result with Krzysztof at that time is recorded here:
> > https://lore.kernel.org/all/20260405-strong-watchful-marmot-fdfad6@quo
> > ll/
> >
> > One register should not be treated as a separate device node.
> 
> That's a different question. In the case of an mfd cell probed from the syscon
> driver there would be no devicetree modifications required compared to what
> you have now. e.g. sg2044-topsys.c

This seems feasible, and I can introduce this modification in the next version.

Best Regards,
Changhuang




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