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Date: Mon, 25 Jan 2016 10:46:28 +0100
From: Petr Štetiar <ynezz@...e.cz>
To: Marcel Ziswiler <marcel.ziswiler@...adex.com>
Cc: linux-arm-kernel@...ts.infradead.org,
Lucas Stach <l.stach@...gutronix.de>,
Russell King <linux@....linux.org.uk>,
Sascha Hauer <kernel@...gutronix.de>,
Petr Štetiar <ynezz@...e.cz>,
Shawn Guo <shawn.guo@...aro.org>,
Fabio Estevam <festevam@...il.com>,
Kumar Gala <galak@...eaurora.org>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Stefan Agner <stefan@...er.ch>,
Joshua Clayton <stillcompiling@...il.com>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Shawn Guo <shawnguo@...nel.org>
Subject: Re: [PATCH v4 1/2] ARM: dts: imx6: Add support for Toradex Apalis
iMX6Q/D SoM
Marcel Ziswiler <marcel.ziswiler@...adex.com> [2016-01-24 23:48:22]:
Hi Marcel,
sorry for not commenting on your v3, I've missed it :(
> + regulators {
> + compatible = "simple-bus";
> +
I've commented this on your v2 already. One of the Lucas's comments[1] about
this node was following:
"Get rid of this simple bus. It's not there in hardware and regulators
care board level components just like the nodes above and below."
It works for me(tm) with following Apalis dtsi[2] on 4.4.0-rc3+ from
arm-soc/for-next[3] with my changes based on this commit:
commit ce504c3d47508fd5590bc9b644e4318a2b5b9aa5
Author: Olof Johansson <olof@...om.net>
Date: Tue Jan 12 10:29:35 2016 -0800
ARM: SoC: document merges
root@...nWrt:/# uname -a
Linux OpenWrt 4.4.0-rc3+ #121 SMP Mon Jan 25 10:06:14 CET 2016 armv7l GNU/Linux
root@...nWrt:/# cat /proc/device-tree/model
Toradex Apalis iMX6Q/D on Gaben Flexi SBC
root@...nWrt:/# cat /sys/kernel/debug/regulator/regulator_summary
regulator use open bypass voltage current min max
-------------------------------------------------------------------------------
regulator-dummy 0 2 0 0mV 0mA 0mV 0mV
2188000.ethernet 0mV 0mV
2090000.flexcan 0mV 0mV
vdd1p1 0 0 0 1100mV 0mA 800mV 1375mV
vdd3p0 0 0 0 3000mV 0mA 2800mV 3150mV
vdd2p5 0 0 0 2400mV 0mA 2000mV 2750mV
vddarm 0 1 0 1250mV 0mA 725mV 1450mV
cpu0 1250mV 1250mV
vddpu 1 2 0 1250mV 0mA 725mV 1450mV
cpu0 1250mV 1250mV
20dc000.gpc 0mV 0mV
vddsoc 0 1 0 1250mV 0mA 725mV 1450mV
cpu0 1250mV 1250mV
1P8V 0 0 0 1800mV 0mA 1800mV 1800mV
2P5V 0 0 0 2500mV 0mA 2500mV 2500mV
3P3V 0 2 0 3300mV 0mA 3300mV 3300mV
2198000.usdhc 3300mV 3400mV
2194000.usdhc 3300mV 3400mV
usb_host_vbus_hub 1 1 0 5000mV 0mA 5000mV 5000mV
usb_host_vbus 1 1 0 5000mV 0mA 5000mV 5000mV
2184200.usb 0mV 0mV
usb_otg_vbus 0 1 0 5000mV 0mA 5000mV 5000mV
2184000.usb 0mV 0mV
SW1AB 0 0 0 1375mV 0mA 300mV 1875mV
SW1C 0 0 0 1375mV 0mA 300mV 1875mV
SW2 0 0 0 1000mV 0mA 0mV 0mV
SW3A 0 0 0 1500mV 0mA 400mV 1975mV
SW3B 0 0 0 1500mV 0mA 0mV 0mV
SW4 0 0 0 1000mV 0mA 0mV 0mV
SWBST 0 0 0 5000mV 0mA 5000mV 5150mV
VSNVS 0 0 0 3000mV 0mA 1000mV 3000mV
VREFDDR 0 0 0 750mV 0mA 750mV 750mV
VGEN1 0 0 0 1500mV 0mA 800mV 1550mV
VGEN2 0 0 0 1500mV 0mA 800mV 1550mV
VGEN3 0 0 0 3000mV 0mA 1800mV 3300mV
VGEN4 0 0 0 1800mV 0mA 1800mV 3300mV
VGEN5 0 0 0 2500mV 0mA 1800mV 3300mV
VGEN6 0 0 0 2800mV 0mA 1800mV 3300mV
What problems are you having if you remove that parent regulators node?
1. http://lists.infradead.org/pipermail/linux-arm-kernel/2015-November/386456.html
2. https://raw.githubusercontent.com/ynezz/linux-2.6/5a211784544a3a460df7e7e45479010ae3feaf76/arch/arm/boot/dts/imx6qdl-apalis.dtsi
3. git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Thanks for your work!
-- ynezz
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