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Date:	Mon, 8 Jun 2015 21:44:21 -0600
From:	Dann Frazier <dann.frazier@...onical.com>
To:	Tai Nguyen <ttnguyen@....com>
Cc:	arm@...nel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	patches@....com, Jon Masters <jcm@...hat.com>
Subject: Re: [PATCH 2/2 RESEND] power: reset: Add syscon poweroff device node
 for APM X-Gene platform

On Tue, Jun 2, 2015 at 1:19 PM, Tai Nguyen <ttnguyen@....com> wrote:
> This patch adds syscon poweroff device node to support poweroff feature
> on APM X-Gene Mustang platform

hey Tai,
 The reboot changes work just fine for me, but poweroff does not:

[  OK  ] Reached target Final Step.
         Starting Power-Off...
reboot: Power down
Unable to poweroff system
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000

CPU: 0 PID: 1 Comm: systemd-shutdow Tainted: G        W       4.1.0-rc7+ #1
Hardware name: APM X-Gene Mustang board (DT)
Call trace:
[<ffffffc00008990c>] dump_backtrace+0x0/0x11c
[<ffffffc000089a38>] show_stack+0x10/0x1c
[<ffffffc0005b447c>] dump_stack+0x88/0xc8
[<ffffffc0005b3374>] panic+0xe0/0x220
[<ffffffc0000b5f24>] do_exit+0x990/0x994
[<ffffffc0000d06bc>] SyS_reboot+0x14c/0x208
---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000

  -dann

> Signed-off-by: Tai Nguyen <ttnguyen@....com>
> ---
>  arch/arm64/boot/dts/apm/apm-mustang.dts |   12 ++++++++++++
>  1 file changed, 12 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/apm/apm-mustang.dts b/arch/arm64/boot/dts/apm/apm-mustang.dts
> index 83578e7..910d561 100644
> --- a/arch/arm64/boot/dts/apm/apm-mustang.dts
> +++ b/arch/arm64/boot/dts/apm/apm-mustang.dts
> @@ -23,6 +23,18 @@
>                 device_type = "memory";
>                 reg = < 0x1 0x00000000 0x0 0x80000000 >; /* Updated by bootloader */
>         };
> +
> +       poweroff_mbox: poweroff_mbox@...48000 {
> +               compatible = "syscon";
> +               reg = <0x0 0x10548000 0x0 0x30>;
> +       };
> +
> +       poweroff: poweroff@...48010 {
> +               compatible = "syscon-poweroff";
> +               regmap = <&poweroff_mbox>;
> +               offset = <0x10>;
> +               mask = <0x1>;
> +       };
>  };
>
>  &pcie0clk {
> --
> 1.7.9.5
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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