On Fri, Jun 21, 2019 at 01:56:02PM +0200, Paweł Chmiel wrote:
> This patch adds devicetree bindings documentation for
> battery charging controller as the subnode of MAX8998 PMIC.
>
> Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@xxxxxxxxx>
> ---
> Changes from v3:
> - Property prefix should be maxim, not max8998
> - Describe what End of Charge in percent means
>
> 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
> ---
> .../devicetree/bindings/mfd/max8998.txt | 26 +++++++++++++++++++
> 1 file changed, 26 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/mfd/max8998.txt b/Documentation/devicetree/bindings/mfd/max8998.txt
> index 5f2f07c09c90..368f787d6079 100644
> --- a/Documentation/devicetree/bindings/mfd/max8998.txt
> +++ b/Documentation/devicetree/bindings/mfd/max8998.txt
> @@ -48,6 +48,25 @@ 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:
> + - maxim,end-of-charge-percentage: End of Charge in percent.
> + When the charge current in constant-voltage phase drops below
> + end-of-charge-percentage of it's start value, charging is terminated.
> + If value equals 0, leave it unchanged. Otherwise it should be value
> + from 10 to 45 by 5 step.
> +
> + Optional properties:
> + - maxim,charge-restart-threshold: Charge restart threshold in millivolts.
> + If property is not present, this will be disabled.
> + Valid values are: 0, 100, 150, 200. If the value equals 0, leave it
> + unchanged.
Needs a unit suffix as defined in property-units.txt.
> +
> + - maxim,charge-timeout: Charge timeout in hours. If property is not
> + present, this will be disabled. Valid values are: 0, 5, 6, 7.
> + If the value equals 0, leave it unchanged.
Needs a unit suffix as defined in property-units.txt.
> +
> 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.
> @@ -97,6 +116,13 @@ Example:
> max8998,pmic-buck2-dvs-gpio = <&gpx0 0 3 0 0>; /* SET3 */
> max8998,pmic-buck2-dvs-voltage = <1350000>, <1300000>;
>
> + /* Charger configuration */
> + charger {
> + maxim,end-of-charge-percentage = <20>;
> + maxim,charge-restart-threshold = <100>;
> + maxim,charge-timeout = <7>;
> + };
> +
> /* Regulators to instantiate */
> regulators {
> ldo2_reg: LDO2 {
> --
> 2.17.1
>
