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From: Philipp Zabel <p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
To: Shawn Guo <shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	Tomasz Figa <tomasz.figa-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
	Geert Uytterhoeven
	<geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>,
	kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Philipp Zabel <p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Subject: [PATCH v9 5/5] ARM: dts: imx6qdl: Allow disabling the PU regulator, add a enable ramp delay
Date: Mon, 23 Feb 2015 18:40:15 +0100	[thread overview]
Message-ID: <1424713215-3357-6-git-send-email-p.zabel@pengutronix.de> (raw)
In-Reply-To: <1424713215-3357-1-git-send-email-p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>

The PU regulator is enabled during boot, but not necessarily always-on.
It can be disabled by the generic pm domain framework when the PU power
domain is shut down. The ramp delay of 150 us might be a bit conservative,
the value is taken from the Freescale kernel.

Signed-off-by: Philipp Zabel <p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
---
Changes since v8:
 - Removed regulator-boot-on, this depends on the bootloader
---
 arch/arm/boot/dts/imx6qdl.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 7ab00a4..4b12ac0 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -598,7 +598,7 @@
 					regulator-name = "vddpu";
 					regulator-min-microvolt = <725000>;
 					regulator-max-microvolt = <1450000>;
-					regulator-always-on;
+					regulator-enable-ramp-delay = <150>;
 					anatop-reg-offset = <0x140>;
 					anatop-vol-bit-shift = <9>;
 					anatop-vol-bit-width = <5>;
-- 
2.1.4

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  parent reply	other threads:[~2015-02-23 17:40 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-23 17:40 [PATCH v9 0/5] i.MX6 PU power domain support Philipp Zabel
     [not found] ` <1424713215-3357-1-git-send-email-p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2015-02-23 17:40   ` [PATCH v9 1/5] Documentation: Add device tree bindings for Freescale i.MX GPC Philipp Zabel
     [not found]     ` <1424713215-3357-2-git-send-email-p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2015-03-03  2:35       ` Shawn Guo
2015-04-22 10:34         ` Lucas Stach
2015-02-23 17:40   ` [PATCH v9 2/5] ARM: imx6: gpc: Add PU power domain for GPU/VPU Philipp Zabel
2015-02-23 17:40   ` [PATCH v9 3/5] ARM: dts: imx6qdl: Add power-domain information to gpc node Philipp Zabel
2015-02-23 17:40   ` [PATCH v9 4/5] ARM: dts: imx6sl: " Philipp Zabel
2015-02-23 17:40   ` Philipp Zabel [this message]
2015-03-11  1:12   ` [PATCH v9 0/5] i.MX6 PU power domain support Shawn Guo
2015-03-11  9:06     ` Philipp Zabel

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