From mboxrd@z Thu Jan 1 00:00:00 1970 From: s.hauer@pengutronix.de (Sascha Hauer) Date: Wed, 17 Sep 2014 12:24:20 +0200 Subject: [PATCH v3 1/3] ARM: dts: imx6: add pm_power_off support for i.mx6 chips In-Reply-To: <1410947881-7345-2-git-send-email-b38343@freescale.com> References: <1410947881-7345-1-git-send-email-b38343@freescale.com> <1410947881-7345-2-git-send-email-b38343@freescale.com> Message-ID: <20140917102420.GW4992@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 > --- > 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 at 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 |