Messages in this thread Patch in this message | | | From | Quentin Schulz <> | Subject | [PATCH 1/4] power: supply: axp20x_battery: add support for DT battery | Date | Thu, 11 May 2017 15:42:17 +0200 |
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This adds support in X-Powers AXP20X and AXP22X battery driver for a fixed battery in DT.
It will take the minimum supported voltage by the battery as defined in the battery DT node and set the V_OFF register to this value, telling the system to shut down if the supplied power is below this value.
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> --- drivers/power/supply/axp20x_battery.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/power/supply/axp20x_battery.c b/drivers/power/supply/axp20x_battery.c index 5d29b2eab8fc..66f530541735 100644 --- a/drivers/power/supply/axp20x_battery.c +++ b/drivers/power/supply/axp20x_battery.c @@ -433,6 +433,7 @@ static int axp20x_power_probe(struct platform_device *pdev) { struct axp20x_batt_ps *axp20x_batt; struct power_supply_config psy_cfg = {}; + struct power_supply_battery_info info; if (!of_device_is_available(pdev->dev.of_node)) return -ENODEV; @@ -484,6 +485,15 @@ static int axp20x_power_probe(struct platform_device *pdev) return PTR_ERR(axp20x_batt->batt); } + if (!power_supply_get_battery_info(axp20x_batt->batt, &info)) { + int vmin = info.voltage_min_design_uv; + + if (vmin > 0 && axp20x_set_voltage_min_design(axp20x_batt, + vmin)) + dev_err(&pdev->dev, + "couldn't set voltage_min_design\n"); + } + return 0; } -- 2.11.0
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