Re: [PATCH v12 22/25] irqchip: Add RISC-V advanced PLIC driver for direct-mode

[Clément Léger]

On 02/02/2024 11:30, Anup Patel wrote:
>>> +int aplic_setup_priv(struct aplic_priv *priv, struct device *dev,
>>> +                  void __iomem *regs)
>>> +{
>>> +     struct of_phandle_args parent;
>>> +     int rc;
>>> +
>>> +     /*
>>> +      * Currently, only OF fwnode is supported so extend this
>>> +      * function for ACPI support.
>>> +      */
>>> +     if (!is_of_node(dev->fwnode))
>>> +             return -EINVAL;
>>> +
>>> +     /* Save device pointer and register base */
>>> +     priv->dev = dev;
>>> +     priv->regs = regs;
>>> +
>>> +     /* Find out number of interrupt sources */
>>> +     rc = of_property_read_u32(to_of_node(dev->fwnode),
>>> +                                          "riscv,num-sources",
>>> +                                          &priv->nr_irqs);
>>
>> Use device_property_read_u32() which works for both ACPI and OF.
> 
> In the previous versions, we did try to unify property reading for
> both ACPI and OF but MarcZ suggested to keep th ACPI and
> OF probe paths totally separate hence we use OF APIs over
> here because we should reach here only for OF probing.

Ok, indeed it makes sense. Discard that comment then !

Thanks,

Clément