From: Baolin Wang <baolin.wang@linaro.org>
To: sre@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com
Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, yuanjiang.yu@unisoc.com,
baolin.wang@linaro.org, broonie@kernel.org, ctatlor97@gmail.com,
linus.walleij@linaro.org
Subject: [PATCH v2 3/4] dt-bindings: power: Add Spreadtrum SC27XX fuel gauge unit documentation
Date: Wed, 26 Sep 2018 10:59:13 +0800 [thread overview]
Message-ID: <b4b36b7b54cc227e6e7f14c314b4617863a205f5.1537930252.git.baolin.wang@linaro.org> (raw)
In-Reply-To: <358665e3f4f9ec105dc2f8a2dc6dd98dbe761fae.1537930252.git.baolin.wang@linaro.org>
In-Reply-To: <358665e3f4f9ec105dc2f8a2dc6dd98dbe761fae.1537930252.git.baolin.wang@linaro.org>
This patch adds the binding documentation for Spreadtrum SC27XX series PMICs
fuel gauge unit device, which is used to calculate the battery capacity.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
---
Changes from v1:
- Renamed GPIO property.
- Use standand battery properties instead of 'sprd,inner-resist' and
'sprd,ocv-cap-table'.
- Remove battery node's description.
---
.../devicetree/bindings/power/supply/sc27xx-fg.txt | 52 ++++++++++++++++++++
1 file changed, 52 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt
diff --git a/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt b/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt
new file mode 100644
index 0000000..b161468
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt
@@ -0,0 +1,52 @@
+Spreadtrum SC27XX PMICs Fuel Gauge Unit Power Supply Bindings
+
+Required properties:
+- compatible: Should be one of the following:
+ "sprd,sc2720-fgu",
+ "sprd,sc2721-fgu",
+ "sprd,sc2723-fgu",
+ "sprd,sc2730-fgu",
+ "sprd,sc2731-fgu".
+- reg: The address offset of fuel gauge unit.
+- battery-detect-gpios: GPIO for battery detection.
+- io-channels: Specify the IIO ADC channel to get temperature.
+- io-channel-names: Should be "bat-temp".
+- monitored-battery: Phandle of battery characteristics devicetree node.
+ See Documentation/devicetree/bindings/power/supply/battery.txt
+
+Example:
+
+ bat: battery {
+ compatible = "simple-battery";
+ charge-full-design-microamp-hours = <1900000>;
+ constant-charge-voltage-max-microvolt = <4350000>;
+ ocv-capacity-table-temperatures = <20>;
+ ocv-capacity-table-0 = <4185000 100>, <4113000 95>, <4066000 90>,
+ <4022000 85>, <3983000 80>, <3949000 75>,
+ <3917000 70>, <3889000 65>, <3864000 60>,
+ <3835000 55>, <3805000 50>, <3787000 45>,
+ <3777000 40>, <3773000 35>, <3770000 30>,
+ <3765000 25>, <3752000 20>, <3724000 15>,
+ <3680000 10>, <3605000 5>, <3400000 0>;
+ ......
+ };
+
+ sc2731_pmic: pmic@0 {
+ compatible = "sprd,sc2731";
+ reg = <0>;
+ spi-max-frequency = <26000000>;
+ interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ fgu@a00 {
+ compatible = "sprd,sc2731-fgu";
+ reg = <0xa00>;
+ battery-detect-gpios = <&pmic_eic 9 GPIO_ACTIVE_HIGH>;
+ io-channels = <&pmic_adc 5>;
+ io-channel-names = "bat-temp";
+ monitored-battery = <&bat>;
+ };
+ };
--
1.7.9.5
next prev parent reply other threads:[~2018-09-26 3:00 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-26 2:59 [PATCH v2 1/4] power: supply: core: Introduce one property to present the battery internal resistance Baolin Wang
2018-09-26 2:59 ` [PATCH v2 2/4] power: supply: core: Introduce properties to present the battery OCV table Baolin Wang
2018-09-26 8:02 ` Linus Walleij
2018-09-26 13:51 ` Sebastian Reichel
2018-09-27 1:10 ` Baolin Wang
2018-09-27 6:40 ` Sebastian Reichel
2018-09-26 2:59 ` Baolin Wang [this message]
2018-09-26 8:04 ` [PATCH v2 3/4] dt-bindings: power: Add Spreadtrum SC27XX fuel gauge unit documentation Linus Walleij
2018-09-26 14:14 ` Sebastian Reichel
2018-09-26 2:59 ` [PATCH v2 4/4] power: supply: Add Spreadtrum SC27XX fuel gauge unit driver Baolin Wang
2018-09-26 8:09 ` Linus Walleij
2018-09-26 8:33 ` Baolin Wang
2018-09-26 15:30 ` Sebastian Reichel
2018-09-27 5:17 ` Baolin Wang
2018-09-26 8:00 ` [PATCH v2 1/4] power: supply: core: Introduce one property to present the battery internal resistance Linus Walleij
2018-09-26 8:30 ` Baolin Wang
2018-09-26 12:45 ` Sebastian Reichel
2018-09-27 1:06 ` Baolin Wang
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