[PATCH v8 15/24] ACPI: Add support for nargs_prop in acpi_fwnode_get_reference_args()

[Andy Shevchenko]

On Fri, Jul 04, 2025 at 12:33:47PM +0530, Anup Patel wrote:
> 
> Currently, ACPI does not support the use of a nargs_prop (e.g.,
> associated with a reference in fwnode_property_get_reference_args().
> Instead, ACPI expects the number of arguments (nargs) to be explicitly
> passed or known.
> 
> This behavior diverges from Open Firmware (OF), which allows the use of
> a #*-cells property in the referenced node to determine the number of
> arguments. Since fwnode_property_get_reference_args() is a common
> interface used across both OF and ACPI firmware paradigms, it is
> desirable to have a unified calling convention that works seamlessly for
> both.
> 
> Add the support for ACPI to parse a nargs_prop from the referenced
> fwnode, aligning its behavior with the OF backend. This allows drivers
> and subsystems using fwnode_property_get_reference_args() to work in a
> firmware-agnostic way without having to hardcode or special-case
> argument counts for ACPI.

Reviewed-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>

-- 
With Best Regards,
Andy Shevchenko