From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Jones Subject: Re: [PATCH v1 02/11] DT: Add documentation for the mfd Maxim max77693 Date: Thu, 26 Mar 2015 14:06:38 +0000 Message-ID: <20150326140638.GM5951@x1> References: <1426863811-12516-1-git-send-email-j.anaszewski@samsung.com> <1426863811-12516-3-git-send-email-j.anaszewski@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: <1426863811-12516-3-git-send-email-j.anaszewski@samsung.com> Sender: linux-media-owner@vger.kernel.org To: Jacek Anaszewski Cc: linux-leds@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, kyungmin.park@samsung.com, pavel@ucw.cz, cooloney@gmail.com, rpurdie@rpsys.net, sakari.ailus@iki.fi, s.nawrocki@samsung.com, Andrzej Hajda , Chanwoo Choi List-Id: devicetree@vger.kernel.org On Fri, 20 Mar 2015, Jacek Anaszewski wrote: > This patch adds device tree binding documentation for > the flash cell of the Maxim max77693 multifunctional device. >=20 > Signed-off-by: Jacek Anaszewski > Signed-off-by: Andrzej Hajda > Acked-by: Kyungmin Park > Cc: Lee Jones > Cc: Chanwoo Choi > Cc: Bryan Wu > Cc: Richard Purdie > --- > Documentation/devicetree/bindings/mfd/max77693.txt | 61 ++++++++++= ++++++++++ > 1 file changed, 61 insertions(+) Bryan and/or one of the DT folks really need to Ack this. > diff --git a/Documentation/devicetree/bindings/mfd/max77693.txt b/Doc= umentation/devicetree/bindings/mfd/max77693.txt > index 38e6440..15c546e 100644 > --- a/Documentation/devicetree/bindings/mfd/max77693.txt > +++ b/Documentation/devicetree/bindings/mfd/max77693.txt > @@ -76,7 +76,53 @@ Optional properties: > Valid values: 4300000, 4700000, 4800000, 4900000 > Default: 4300000 > =20 > +- led : the LED submodule device node > + > +There are two LED outputs available - FLED1 and FLED2. Each of them = can > +control a separate LED or they can be connected together to double > +the maximum current for a single connected LED. One LED is represent= ed > +by one child node. > + > +Required properties: > +- compatible : Must be "maxim,max77693-led". > + > +Optional properties: > +- maxim,trigger-type : Flash trigger type. > + Possible trigger types: > + LEDS_TRIG_TYPE_EDGE (0) - Rising edge of the signal triggers > + the flash, > + LEDS_TRIG_TYPE_LEVEL (1) - Strobe pulse length controls duration > + of the flash. > +- maxim,boost-mode : > + In boost mode the device can produce up to 1.2A of total current > + on both outputs. The maximum current on each output is reduced > + to 625mA then. If not enabled explicitly, boost setting defaults to > + LEDS_BOOST_FIXED in case both current sources are used. > + Possible values: > + LEDS_BOOST_OFF (0) - no boost, > + LEDS_BOOST_ADAPTIVE (1) - adaptive mode, > + LEDS_BOOST_FIXED (2) - fixed mode. > +- maxim,boost-mvout : Output voltage of the boost module in millivol= ts. > +- maxim,mvsys-min : Low input voltage level in millivolts. Flash is = not fired > + if chip estimates that system voltage could drop below this level d= ue > + to flash power consumption. > + > +Required properties of the LED child node: > +- led-sources : see Documentation/devicetree/bindings/leds/common.tx= t; > + device current output identifiers: 0 - FLED1, 1 - FLED2 > + > +Optional properties of the LED child node: > +- label : see Documentation/devicetree/bindings/leds/common.txt > +- max-microamp : see Documentation/devicetree/bindings/leds/common.t= xt > + Range: 15625 - 250000 > +- flash-max-microamp : see Documentation/devicetree/bindings/leds/co= mmon.txt > + Range: 15625 - 1000000 > +- flash-timeout-us : see Documentation/devicetree/bindings/leds/comm= on.txt > + Range: 62500 - 1000000 > + > Example: > +#include > + > max77693@66 { > compatible =3D "maxim,max77693"; > reg =3D <0x66>; > @@ -117,5 +163,20 @@ Example: > maxim,thermal-regulation-celsius =3D <75>; > maxim,battery-overcurrent-microamp =3D <3000000>; > maxim,charge-input-threshold-microvolt =3D <4300000>; > + > + led { > + compatible =3D "maxim,max77693-led"; > + maxim,trigger-type =3D ; > + maxim,boost-mode =3D ; > + maxim,boost-mvout =3D <5000>; > + maxim,mvsys-min =3D <2400>; > + > + camera_flash: flash-led { > + label =3D "max77693-flash"; > + led-sources =3D <0>, <1>; > + max-microamp =3D <500000>; > + flash-max-microamp =3D <1250000>; > + flash-timeout-us =3D <1000000>; > + }; > }; > }; --=20 Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org =E2=94=82 Open source software for ARM SoCs =46ollow Linaro: Facebook | Twitter | Blog