[PATCH v3 21/23] irqchip/riscv-rpmi-sysmsi: Add ACPI support

[Andy Shevchenko]

On Sun, May 11, 2025 at 07:09:37PM +0530, Anup Patel wrote:
> 
> Add ACPI support for the RISC-V RPMI system MSI based irqchip driver.

...

	struct fwnode_handle *fwnode;
	...
	fwnode = dev_fwnode(dev);

> +	if (is_acpi_node(dev_fwnode(dev))) {
> +		u32 nr_irqs;
> +
> +		rc = riscv_acpi_get_gsi_info(dev_fwnode(dev), &priv->gsi_base, &id,
> +					     &nr_irqs, NULL);

		...(fwnode, ...)

...and so on...

> +		if (rc) {
> +			dev_err(dev, "failed to find GSI mapping\n");
> +			return rc;
> +		}
> +
> +		/* Update with actual GSI range */
> +		if (nr_irqs != priv->nr_irqs)
> +			riscv_acpi_update_gsi_range(priv->gsi_base, priv->nr_irqs);
> +	}

> -		if (is_of_node(dev_fwnode(dev)))
> +		if (is_of_node(dev_fwnode(dev))) {
>  			of_msi_configure(dev, to_of_node(dev_fwnode(dev)));
> +		} else {

		} else if (is_acpi_..._node(...)) {

> +			msi_domain = irq_find_matching_fwnode(imsic_acpi_get_fwnode(dev),
> +							      DOMAIN_BUS_PLATFORM_MSI);
> +			dev_set_msi_domain(dev, msi_domain);
> +		}

...

> +#ifdef CONFIG_ACPI
> +	if (!acpi_disabled)

Why?

> +		acpi_dev_clear_dependencies(ACPI_COMPANION(dev));
> +#endif

-- 
With Best Regards,
Andy Shevchenko