From 1e01cd0f1f3bff7d169acb842e4dd6c9874e40ad Mon Sep 17 00:00:00 2001
From: Ondrej Jirman <megi@xff.cz>
Date: Sat, 27 Aug 2022 20:50:43 +0200
Subject: [PATCH 296/463] power: supply: axp20x-battery: Enable poweron by RTC
 alarm

For the Pinephone to be able to poweron on RTC alarm, some bits in
PMIC need to be enabled. This will cause PMIC to be wakeable by
SoC pulling the interrupt line low.

This may need some coordination from a bootloader.

Signed-off-by: Ondrej Jirman <megi@xff.cz>
---
 drivers/power/supply/axp20x_battery.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/power/supply/axp20x_battery.c b/drivers/power/supply/axp20x_battery.c
index 4e084b83e7cfd..210be590691cc 100644
--- a/drivers/power/supply/axp20x_battery.c
+++ b/drivers/power/supply/axp20x_battery.c
@@ -856,6 +856,11 @@ static int axp20x_power_probe(struct platform_device *pdev)
 		ret = regmap_update_bits(axp20x_batt->regmap, 0x84, 0x37, 0x31);
 		if (ret)
 			goto warn_bat;
+
+		// enable poweron by RTC
+		ret = regmap_update_bits(axp20x_batt->regmap, 0x8f, BIT(7), BIT(7));
+		if (ret)
+			goto warn_bat;
 	}
 
 	return 0;
-- 
2.46.0

