Re: [PATCH v3 1/3] ARM: dts: imx6: add pm_power_off support for i.mx6 chips

[Sascha Hauer]

On Wed, Sep 17, 2014 at 05:57:58PM +0800, Robin Gong wrote:
> All chips of i.mx6 can be powered off by programming SNVS.
> For example :
> On i.mx6q-sabresd board, PMIC_ON_REQ connect with external
> pmic ON/OFF pin, that will cause the whole PMIC powered off
> except VSNVS. And system can restart once PMIC_ON_REQ goes
> high by push POWRER key.
> 
> Signed-off-by: Robin Gong <b38343@xxxxxxxxxxxxx>
> ---
>  arch/arm/boot/dts/imx6qdl.dtsi |    5 +++++
>  arch/arm/boot/dts/imx6sl.dtsi  |    5 +++++
>  arch/arm/boot/dts/imx6sx.dtsi  |    5 +++++
>  3 files changed, 15 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
> index c701af9..fffa1c6 100644
> --- a/arch/arm/boot/dts/imx6qdl.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl.dtsi
> @@ -645,6 +645,11 @@
>  					interrupts = <0 19 IRQ_TYPE_LEVEL_HIGH>,
>  						     <0 20 IRQ_TYPE_LEVEL_HIGH>;
>  				};
> +
> +				snvs-poweroff@38 {
> +					compatible = "fsl,sec-v4.0-poweroff";
> +					reg = <0x38 0x4>;
> +				};

As said: This makes board specific assumptions on SoC level. Whether or
not this function is available is *BOARD* specific, so at SoC level this
needs a status = "disabled";

So: NACK.

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/