From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?utf-8?B?UGF3ZcWC?= Chmiel Subject: Re: [PATCH 4/4] dt-bindings: mfd: max8998: Add charger subnode binding Date: Tue, 01 May 2018 16:43:07 +0200 Message-ID: <2089055.mctyXeETjz@acerlaptop> References: <1524844982-4714-1-git-send-email-pawel.mikolaj.chmiel@gmail.com> <1524844982-4714-5-git-send-email-pawel.mikolaj.chmiel@gmail.com> <20180501124540.3icpjevaxp44ew2e@earth.universe> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20180501124540.3icpjevaxp44ew2e@earth.universe> Sender: linux-kernel-owner@vger.kernel.org To: Sebastian Reichel Cc: lgirdwood@gmail.com, broonie@kernel.org, lee.jones@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org List-Id: linux-pm@vger.kernel.org On Tuesday, May 1, 2018 2:45:40 PM CEST Sebastian Reichel wrote: > Hi, >=20 > On Fri, Apr 27, 2018 at 06:03:02PM +0200, Pawe=C5=82 Chmiel wrote: > > This patch adds devicetree bindings documentation for > > battery charging controller as the subnode of MAX8998 PMIC. > > It's based on current behavior of driver. > >=20 > > Fixes: ee999fb3f17f ("mfd: max8998: Add support for Device Tree") > > Signed-off-by: Pawe=C5=82 Chmiel > > --- > > Documentation/devicetree/bindings/mfd/max8998.txt | 22 +++++++++++++++= +++++++ > > 1 file changed, 22 insertions(+) > >=20 > > diff --git a/Documentation/devicetree/bindings/mfd/max8998.txt b/Docume= ntation/devicetree/bindings/mfd/max8998.txt > > index 23a3650ff2a2..f95610afb57f 100644 > > --- a/Documentation/devicetree/bindings/mfd/max8998.txt > > +++ b/Documentation/devicetree/bindings/mfd/max8998.txt > > @@ -50,6 +50,21 @@ Additional properties required if max8998,pmic-buck2= =2Ddvs-gpio is defined: > > - max8998,pmic-buck2-dvs-voltage: An array of 2 voltage values in micr= ovolts > > for buck2 regulator that can be selected using dvs gpio. > > =20 > > +Charger: Configuration for battery charging controller should be added > > +inside a child node named 'charger'. > > + Required properties: > > + - max8998,charge-eoc: Setup "End of Charge". If value equals 0, > > + remain value set from bootloader or default value will be used. > > + Valid values: 0, 10 - 45 > > + > > + - max8998,charge-restart: Setup "Charge Restart Level". If value equ= als 0, > > + remain value set from bootloader or default value will be used. > > + Valid values: -1, 0, 100, 150, 200 > > + > > + - max8998,charge-timeout: Setup "Charge Full Timeout". If value equa= ls 0, > > + remain value set from bootloader or default value will be used. > > + Valid values: -1, 0, 5, 6, 7 >=20 > What are those values? seconds? >=20 Honestly i don't know. I've just documented values accepted currently by ch= arger driver, so we can use it from devicetree. I couldn't find any max8998 datasheet with this information (units, possibl= e values etc for those properties). If this is not acceptable, i can drop this patch. > > + > > Regulators: All the regulators of MAX8998 to be instantiated shall be > > listed in a child node named 'regulators'. Each regulator is represent= ed > > by a child node of the 'regulators' node. > > @@ -99,6 +114,13 @@ Example: > > max8998,pmic-buck2-dvs-gpio =3D <&gpx0 0 3 0 0>; /* SET3 */ > > max8998,pmic-buck2-dvs-voltage =3D <1350000>, <1300000>; > > =20 > > + /* Charger configuration */ > > + charger { > > + max8998,charge-eoc =3D <0>; > > + max8998,charge-restart =3D <(-1)>; > > + max8998,charge-timeout =3D <7>; > > + }; > > + > > /* Regulators to instantiate */ > > regulators { > > ldo2_reg: LDO2 { >=20