From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 20 May 2020 11:17:17 +0300
Subject: Warnings on Edison
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References: <CAPnjgZ1J2V0UaGZyCdTOsuc7DxtUA2+GZ6RYpE9NcJaqtsAbtw@mail.gmail.com>
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On Tue, May 19, 2020 at 10:47:27AM -0600, Simon Glass wrote:
> Hi Andy,
> 
> When I build edison on master I recently started seeing this warning:
> 
> +board/intel/edison/dsdt.asl.tmp    210:         Name (SSCN, Package ()
> +Warning  4089 -                Object is not referenced ^
> +
> +board/intel/edison/dsdt.asl.tmp    214:         Name (FMCN, Package ()
> +board/intel/edison/dsdt.asl.tmp    218:         Name (HSCN, Package ()
> +board/intel/edison/dsdt.asl.tmp    239:         Name (SSCN, Package ()
> +board/intel/edison/dsdt.asl.tmp    243:         Name (FMCN, Package ()
> +board/intel/edison/dsdt.asl.tmp    247:         Name (HSCN, Package ()
> +board/intel/edison/dsdt.asl.tmp    291:             Method (GPLD, 1,
> Serialized) {
> +Warning  4089 -                      Object is not referenced ^

Can't reproduce.
ASL+ Optimizing Compiler/Disassembler version 20190509

> Do you have any thoughts on how to fix it?

Yes, file a bug in ACPICA bugzilla.

-- 
With Best Regards,
Andy Shevchenko