Re: [PATCH] arm64/acpi: make ACPI boot preference configurable

2018-02-28 Thread Bhupesh Sharma
On Wed, Feb 28, 2018 at 3:37 PM, Andy Shevchenko wrote: > On Wed, 2018-02-28 at 00:29 +0530, Bhupesh Sharma wrote: >> On Tue, Feb 27, 2018 at 8:14 PM, Jonathan Toppins > > wrote: >> > On 02/27/2018 07:40 AM, Bhupesh Sharma wrote: >> > > > >> > For arm64 DT is suppose to *not* be the preferred meth

Re: [PATCH] arm64/acpi: make ACPI boot preference configurable

2018-02-28 Thread Rafael J. Wysocki
On 2/28/2018 11:07 AM, Andy Shevchenko wrote: On Wed, 2018-02-28 at 00:29 +0530, Bhupesh Sharma wrote: On Tue, Feb 27, 2018 at 8:14 PM, Jonathan Toppins wrote: On 02/27/2018 07:40 AM, Bhupesh Sharma wrote: For arm64 DT is suppose to *not* be the preferred method, yet still DT is preferred if th

Re: [PATCH] arm64/acpi: make ACPI boot preference configurable

2018-02-28 Thread Andy Shevchenko
On Wed, 2018-02-28 at 00:29 +0530, Bhupesh Sharma wrote: > On Tue, Feb 27, 2018 at 8:14 PM, Jonathan Toppins > wrote: > > On 02/27/2018 07:40 AM, Bhupesh Sharma wrote: > > > > > For arm64 DT is suppose to *not* be the preferred method, yet still > > DT > > is preferred if the firmware provides b

Re: [PATCH] arm64/acpi: make ACPI boot preference configurable

2018-02-27 Thread Bhupesh Sharma
On Tue, Feb 27, 2018 at 8:14 PM, Jonathan Toppins wrote: > On 02/27/2018 07:40 AM, Bhupesh Sharma wrote: >> Hi, >> >> On Tue, Feb 27, 2018 at 11:35 AM, Jonathan Toppins >> wrote: >>> This patch allows a user to configure ACPI to be preferred over >>> device-tree. >>> >>> Currently for ACPI to be

Re: [PATCH] arm64/acpi: make ACPI boot preference configurable

2018-02-27 Thread Mark Rutland
On Tue, Feb 27, 2018 at 09:44:09AM -0500, Jonathan Toppins wrote: > For arm64 DT is suppose to *not* be the preferred method, This has never been the upstream position. DT has been the default since day one, and changing this would be a regression, as has been stated several times in the past.

Re: [PATCH] arm64/acpi: make ACPI boot preference configurable

2018-02-27 Thread Robin Murphy
On 27/02/18 14:28, Jonathan Toppins wrote: 'only intended to be booted via ACPI' is a property of the system, not of the OS. If you need this functionality for development, you can append 'acpi=on' to the kernel command line via kconfig. This is not for development this is for production rate s

Re: [PATCH] arm64/acpi: make ACPI boot preference configurable

2018-02-27 Thread Ard Biesheuvel
On 27 February 2018 at 14:28, Jonathan Toppins wrote: > On 02/27/2018 02:22 AM, Ard Biesheuvel wrote: >> Hi Jonathan, >> >> On 27 February 2018 at 06:05, Jonathan Toppins wrote: >>> This patch allows a user to configure ACPI to be preferred over >>> device-tree. >>> >> >> This comes up once a yea

Re: [PATCH] arm64/acpi: make ACPI boot preference configurable

2018-02-27 Thread Jonathan Toppins
On 02/27/2018 07:40 AM, Bhupesh Sharma wrote: > Hi, > > On Tue, Feb 27, 2018 at 11:35 AM, Jonathan Toppins > wrote: >> This patch allows a user to configure ACPI to be preferred over >> device-tree. >> >> Currently for ACPI to be used a user either has to set acpi=on on the >> kernel command lin

Re: [PATCH] arm64/acpi: make ACPI boot preference configurable

2018-02-27 Thread Jonathan Toppins
On 02/27/2018 02:22 AM, Ard Biesheuvel wrote: > Hi Jonathan, > > On 27 February 2018 at 06:05, Jonathan Toppins wrote: >> This patch allows a user to configure ACPI to be preferred over >> device-tree. >> > > This comes up once a year or so, and the consensus has been so far > that it is not up

Re: [PATCH] arm64/acpi: make ACPI boot preference configurable

2018-02-27 Thread Bhupesh Sharma
Hi, On Tue, Feb 27, 2018 at 11:35 AM, Jonathan Toppins wrote: > This patch allows a user to configure ACPI to be preferred over > device-tree. > > Currently for ACPI to be used a user either has to set acpi=on on the > kernel command line or make sure any device tree passed to the kernel > is emp

Re: [PATCH] arm64/acpi: make ACPI boot preference configurable

2018-02-26 Thread Ard Biesheuvel
Hi Jonathan, On 27 February 2018 at 06:05, Jonathan Toppins wrote: > This patch allows a user to configure ACPI to be preferred over > device-tree. > This comes up once a year or so, and the consensus has been so far that it is not up to the kernel to reason about whether DT or ACPI should be pr