From: Ene Alexandru <ene.alexandru-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: linux-sunxi <linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Cc: lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org,
wens-jdAy2FN1RRM@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
Subject: Re: PATH[1/3] ARM: axp20x_usb_power.c add device tree configuration options for REG 30H: VBUS-IPSOUT
Date: Tue, 17 May 2016 10:50:42 -0700 (PDT) [thread overview]
Message-ID: <35a39bdc-1304-403d-b56a-a45bb8debf5e@googlegroups.com> (raw)
In-Reply-To: <671c7471-b63a-40cc-989f-6b20f00571ee-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
[-- Attachment #1.1: Type: text/plain, Size: 2383 bytes --]
the documentation is updated to describe how to convert actual values to
the provided parameters
---
diff -uprN -X linux-sunxi-original/Documentation/dontdiff
linux-sunxi-original/Documentation/devicetree/bindings/power_supply/axp20x_usb_power.txt
linux-sunxi/Documentation/devicetree/bindings/power_supply/axp20x_usb_power.txt
---
linux-sunxi-original/Documentation/devicetree/bindings/power_supply/axp20x_usb_power.txt
2016-05-09 16:48:46.000000000 +0200
+++
linux-sunxi/Documentation/devicetree/bindings/power_supply/axp20x_usb_power.txt
2016-05-11 13:05:58.995873267 +0200
@@ -5,6 +5,26 @@ Required Properties:
This node is a subnode of the axp20x PMIC.
+The following 3 parameters are configurable from the device-tree:
+ - vhold-enable
+ - bit 6 of register REG 30H: VBUS-IPSOUT Power Path
Management
+ - available values are:
+ - 0x00 : VBUS VHOLD voltage limiting
control disabled
+ - 0x01 : VBUS VHOLD voltage limiting
control enabled
+ - vhold-set
+ - bits <5-3> of register REG 30H: VBUS-IPSOUT Power
Path Management
+ - available values are from 0x00 to 0x07
+ - VHOLD = [4000000 + ( vhold-set & 0x07 ) * 100000]
in uV
+
+ - ibus-limit
+ - bits <1-0> of register REG 30H: VBUS-IPSOUT Power
Path Management
+ - available values are :
+ - 0x00 : 900000uA
+ - 0x01 : 500000uA
+ - 0x02 : 100000uA
+ - 0x03 : unlimited
+
+
Example:
axp209: pmic@34 {
@@ -30,5 +50,8 @@ axp209: pmic@34 {
usb-power-supply: usb-power-supply {
compatible = "x-powers,axp202-usb-power-supply";
+ vhold-enable = <0x01>;
+ vhold-set = <0x04>;
+ ibus-limit = <0x01>;
};
};
---
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next prev parent reply other threads:[~2016-05-17 17:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-17 17:41 PATH[1/3] ARM: axp20x_usb_power.c add device tree configuration options for REG 30H: VBUS-IPSOUT Ene Alexandru
[not found] ` <0f58d2b3-f3d3-45a3-a307-e54df26c1ab1-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
2016-05-17 17:47 ` Ene Alexandru
[not found] ` <671c7471-b63a-40cc-989f-6b20f00571ee-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
2016-05-17 17:50 ` Ene Alexandru [this message]
[not found] ` <35a39bdc-1304-403d-b56a-a45bb8debf5e-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
2016-05-17 23:21 ` Julian Calaby
[not found] ` <CAGRGNgX7A3bx9Dam2j1ovdf4s8L9GTi3DM4zMeyu0x3b0wwCgA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-05-18 4:02 ` Ene Alexandru
2016-05-17 23:15 ` Julian Calaby
2016-05-18 7:21 ` Lee Jones
2016-06-10 9:56 ` [linux-sunxi] " Hans de Goede
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