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Subject[PATCH v3 3/3] dt-bindings: mfd: max8998: Add charger subnode binding
Date
This patch adds devicetree bindings documentation for
battery charging controller as the subnode of MAX8998 PMIC.

Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
---
Changes from v2:
- Make charge-restart-level-microvolt optional.
- Make charge-timeout-hours optional.

Changes from v1:
- Removed unneeded Fixes tag
- Correct description of all charger values
- Added missing property unit
---
Documentation/devicetree/bindings/mfd/max8998.txt | 25 +++++++++++++++++++++++
1 file changed, 25 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/max8998.txt b/Documentation/devicetree/bindings/mfd/max8998.txt
index 23a3650ff2a2..264040f4ad15 100644
--- a/Documentation/devicetree/bindings/mfd/max8998.txt
+++ b/Documentation/devicetree/bindings/mfd/max8998.txt
@@ -50,6 +50,24 @@ Additional properties required if max8998,pmic-buck2-dvs-gpio is defined:
- max8998,pmic-buck2-dvs-voltage: An array of 2 voltage values in microvolts
for buck2 regulator that can be selected using dvs gpio.

+Charger: Configuration for battery charging controller should be added
+inside a child node named 'charger'.
+ Required properties:
+ - max8998,charge-eoc-percent: Setup End of Charge Level.
+ If value equals 0, leave it unchanged.
+ Otherwise it should be value from 10 to 45 by 5 step.
+
+ Optional properties:
+ - max8998,charge-restart-level-microvolt: Setup Charge Restart Level.
+ If property is not present, this will be disabled.
+ If value equals 0, leave it unchanged.
+ Otherwise it should be one of following values: 100, 150, 200.
+
+ - max8998,charge-timeout-hours: Setup Charge Full Timeout.
+ If property is not present, this will be disabled.
+ If value equals 0, leave it unchanged.
+ Otherwise it should be one of following values: 5, 6, 7.
+
Regulators: All the regulators of MAX8998 to be instantiated shall be
listed in a child node named 'regulators'. Each regulator is represented
by a child node of the 'regulators' node.
@@ -99,6 +117,13 @@ Example:
max8998,pmic-buck2-dvs-gpio = <&gpx0 0 3 0 0>; /* SET3 */
max8998,pmic-buck2-dvs-voltage = <1350000>, <1300000>;

+ /* Charger configuration */
+ charger {
+ max8998,charge-eoc-percent = <0>;
+ max8998,charge-restart-level-microvolt = <100>;
+ max8998,charge-timeout-hours = <7>;
+ };
+
/* Regulators to instantiate */
regulators {
ldo2_reg: LDO2 {
--
2.7.4
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