Re: [PATCH v3 1/3] ARM: dts: imx6: add pm_power_off support for i.mx6 chips
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: 2014-09-17 10:25:14
Also in:
linux-arm-kernel, linux-devicetree, lkml
On Wed, Sep 17, 2014 at 05:57:58PM +0800, Robin Gong wrote:
quoted hunk ↗ jump to hunk
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 <redacted> --- 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 |