From mboxrd@z Thu Jan  1 00:00:00 1970
From: Will Deacon <will.deacon@arm.com>
Subject: Re: [PATCH v10 3/4] ARM64: ACPI: enable ACPI_SPCR_TABLE
Date: Thu, 8 Sep 2016 12:16:55 +0100
Message-ID: <20160908111654.GH1493@arm.com>
References: <20160905123617.18775-1-aleksey.makarov@linaro.org>
 <20160905123617.18775-4-aleksey.makarov@linaro.org>
 <7e5486cc-4080-2d1e-8f6d-98874379887d@gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Return-path: <linux-kernel-owner@vger.kernel.org>
Content-Disposition: inline
In-Reply-To: <7e5486cc-4080-2d1e-8f6d-98874379887d@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
To: Aleksey Makarov <amakarov.linux@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>, Aleksey Makarov <aleksey.makarov@linaro.org>, "Rafael J . Wysocki" <rjw@rjwysocki.net>, "Zheng, Lv" <lv.zheng@intel.com>, Kefeng Wang <wangkefeng.wang@huawei.com>, Russell King <linux@arm.linux.org.uk>, Peter Hurley <peter@hurleysoftware.com>, Graeme Gregory <graeme.gregory@linaro.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Andy Shevchenko <andy.shevchenko@gmail.com>, linux-kernel@vger.kernel.org, Leif Lindholm <leif.lindholm@linaro.org>, linux-acpi@vger.kernel.org, Yury Norov <ynorov@caviumnetworks.com>, Christopher Covington <cov@codeaurora.org>, linux-serial@vger.kernel.org, Mark Salter <msalter@redhat.com>, Al Stone <ahs3@redhat.com>, linux-arm-kernel@lists.infradead.org, Len Brown <lenb@kernel.org>
List-Id: linux-acpi@vger.kernel.org

On Wed, Sep 07, 2016 at 12:30:19PM +0300, Aleksey Makarov wrote:
> 
> On 09/05/2016 03:36 PM, Aleksey Makarov wrote:
> > SBBR mentions SPCR as a mandatory ACPI table.  So enable it for ARM64
> > 
> > Earlycon should be set up as early as possible.  ACPI boot tables are
> > mapped in arch/arm64/kernel/acpi.c:acpi_boot_table_init() that
> > is called from setup_arch() and that's where we parse SPCR.
> > So it has to be opted-in per-arch.
> > 
> > When ACPI_SPCR_TABLE is defined initialization of DT earlycon is
> > deferred until the DT/ACPI decision is done.  Initialize DT earlycon
> > if ACPI is disabled.
> 
> Hi Will, Catalin,
> 
> Can you review this patch and consider ACKing it please?

Hanjun, Al, Mark, Graeme -- any comments on this?

Will

From mboxrd@z Thu Jan  1 00:00:00 1970
From: will.deacon@arm.com (Will Deacon)
Date: Thu, 8 Sep 2016 12:16:55 +0100
Subject: [PATCH v10 3/4] ARM64: ACPI: enable ACPI_SPCR_TABLE
In-Reply-To: <7e5486cc-4080-2d1e-8f6d-98874379887d@gmail.com>
References: <20160905123617.18775-1-aleksey.makarov@linaro.org>
 <20160905123617.18775-4-aleksey.makarov@linaro.org>
 <7e5486cc-4080-2d1e-8f6d-98874379887d@gmail.com>
Message-ID: <20160908111654.GH1493@arm.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Wed, Sep 07, 2016 at 12:30:19PM +0300, Aleksey Makarov wrote:
> 
> On 09/05/2016 03:36 PM, Aleksey Makarov wrote:
> > SBBR mentions SPCR as a mandatory ACPI table.  So enable it for ARM64
> > 
> > Earlycon should be set up as early as possible.  ACPI boot tables are
> > mapped in arch/arm64/kernel/acpi.c:acpi_boot_table_init() that
> > is called from setup_arch() and that's where we parse SPCR.
> > So it has to be opted-in per-arch.
> > 
> > When ACPI_SPCR_TABLE is defined initialization of DT earlycon is
> > deferred until the DT/ACPI decision is done.  Initialize DT earlycon
> > if ACPI is disabled.
> 
> Hi Will, Catalin,
> 
> Can you review this patch and consider ACKing it please?

Hanjun, Al, Mark, Graeme -- any comments on this?

Will