RE: [PATCH v8 1/6] ARM: imx6q: provide documentation for new fsl,pmic-stby-poweroff property
From: Robin Gong <hidden>
Date: 2018-07-26 09:51:21
Also in:
linux-arm-kernel, linux-clk, lkml
quoted hunk ↗ jump to hunk
-----Original Message----- From: Oleksij Rempel [mailto:o.rempel@pengutronix.de] Sent: 2018年7月26日 17:22 To: Shawn Guo <shawnguo@kernel.org>; Mark Brown <broonie@kernel.org>; Rafael J. Wysocki [off-list ref] Cc: Oleksij Rempel <o.rempel@pengutronix.de>; kernel@pengutronix.de; devicetree@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux-clk@vger.kernel.org; linux-kernel@vger.kernel.org; Andrew Morton [off-list ref]; Liam Girdwood [off-list ref]; Leonard Crestez [off-list ref]; Rob Herring [off-list ref]; Mark Rutland [off-list ref]; Michael Turquette [off-list ref]; Stephen Boyd [off-list ref]; Fabio Estevam [off-list ref]; Russell King [off-list ref]; dl-linux-imx [off-list ref]; Robin Gong [off-list ref]; A.s. Dong [off-list ref] Subject: [PATCH v8 1/6] ARM: imx6q: provide documentation for new fsl,pmic-stby-poweroff property Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Rob Herring <robh@kernel.org> --- Documentation/devicetree/bindings/clock/imx6q-clock.txt | 8 ++++++++ 1 file changed, 8 insertions(+)diff --git a/Documentation/devicetree/bindings/clock/imx6q-clock.txtb/Documentation/devicetree/bindings/clock/imx6q-clock.txt index a45ca67a9d5f..e1308346e00d 100644--- a/Documentation/devicetree/bindings/clock/imx6q-clock.txt +++ b/Documentation/devicetree/bindings/clock/imx6q-clock.txt@@ -6,6 +6,14 @@ Required properties: - interrupts: Should contain CCM interrupt - #clock-cells: Should be <1> +Optional properties: +- fsl,pmic-stby-poweroff: Configure CCM to assert PMIC_STBY_REQ signal + on power off. + Use this property if the SoC should be powered off by external power + management IC (PMIC) triggered via PMIC_STBY_REQ signal.
PMIC_ON_REQ didn't connect to any pin of PMIC in your case? Don't understand why not follow normal board design guide to power off pmic by PMIC_ON_REQ. How to power on board again then?
+ Boards that are designed to initiate poweroff on PMIC_ON_REQ signal +should + be using "syscon-poweroff" driver instead. + The clock consumer should specify the desired clock by having the clock ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx6qdl-clock.h for the full list of i.MX6 Quad and DualLite clock IDs. -- 2.18.0