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SubjectRe: [PATCH v2 3/3] dt-bindings: mfd: max8998: Add charger subnode binding
On Sat, Jul 14, 2018 at 02:26:53PM +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@gmail.com>
> ---
> Changes from v1:
> - Removed unneeded Fixes tag
> - Correct description of all charger values
> - Added missing property unit
> ---
> Documentation/devicetree/bindings/mfd/max8998.txt | 24 +++++++++++++++++++++++
> 1 file changed, 24 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/mfd/max8998.txt b/Documentation/devicetree/bindings/mfd/max8998.txt
> index 23a3650ff2a2..196e50097a36 100644
> --- a/Documentation/devicetree/bindings/mfd/max8998.txt
> +++ b/Documentation/devicetree/bindings/mfd/max8998.txt
> @@ -50,6 +50,23 @@ 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.
> +
> + - max8998,charge-restart-level-microvolt: Setup Charge Restart Level.
> + If value equals 0, leave it unchanged.
> + If value equals -1, it will be disabled.

-1 is a bit strange. Why not 'not present' is disabled?

> + Otherwise it should be one of following values: 100, 150, 200.
> +
> + - max8998,charge-timeout-hours: Setup Charge Full Timeout.
> + If value equals 0, leave it unchanged.
> + If value equals -1, it will be disabled.
> + 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 +116,13 @@ 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 = <(-1)>;
> + max8998,charge-timeout-hours = <7>;
> + };
> +
> /* Regulators to instantiate */
> regulators {
> ldo2_reg: LDO2 {
> --
> 2.7.4
>

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