From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Zhang Subject: [PATCH v2 2/4] mfd: max77620: add documentation for backup battery charging Date: Tue, 29 Jan 2019 16:55:29 +0800 Message-ID: <20190129085531.32364-3-markz@nvidia.com> References: <20190129085531.32364-1-markz@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20190129085531.32364-1-markz@nvidia.com> Sender: linux-kernel-owner@vger.kernel.org To: lee.jones@linaro.org, blaws05@gmail.com, robh+dt@kernel.org, mark.rutland@arm.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: linux-tegra@vger.kernel.org, Mark Zhang List-Id: devicetree@vger.kernel.org Adding documentation for 3 new backup battery charging dts properties: - maxim,backup-battery-charging-current - maxim,backup-battery-charging-voltage - maxim,backup-battery-output-resister Signed-off-by: Mark Zhang --- .../devicetree/bindings/mfd/max77620.txt | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/Documentation/devicetree/bindings/mfd/max77620.txt b/Documenta= tion/devicetree/bindings/mfd/max77620.txt index 9c16d51cc15b..484b17e4fba5 100644 --- a/Documentation/devicetree/bindings/mfd/max77620.txt +++ b/Documentation/devicetree/bindings/mfd/max77620.txt @@ -122,6 +122,26 @@ For DT binding details of different sub modules like G= PIO, pincontrol, regulator, power, please refer respective device-tree binding document under their respective sub-system directories. =20 +Backup Battery: +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D +This sub-node configure charging backup battery of the device. Device has +support of charging the backup battery. The subnode name is "backup-batter= y". +The property for backup-battery child nodes as: +Presence of this child node will enable the backup battery charging. + +Optional properties: + -maxim,backup-battery-charging-current: Charging current setting. + The device supports 50/100/200/400/600/800uA. + If this property is unavailable then it will + charge with 50uA. + -maxim,backup-battery-charging-voltage: Charging Voltage Limit Setting. + Device supports 2500000/3000000/3300000/350000uV. + Default will be set to 2500mV. The voltage will be roundoff + to nearest lower side if other than above is configured. + -maxim,backup-battery-output-resister: Output resistor on Ohm. + Device supports 100/1000/3000/6000 Ohms. + Default will be set to 1000 Ohm. + Example: -------- #include --=20 2.19.2