pmaports/main/linux-postmarketos-exynos4/0009-power-supply-max17042_battery-Clear-status-bits-in-i.patch
Henrik Grimler ed1e314287
linux-postmarketos-exynos4: upgrade to 5.15-rc2 (MR 2546)
Also add patches from the Replicant project to fix so that charging
works, and patches from the linux-pm list to fix the SOC INTR message
that has been spamming our dmesg (issue
https://gitlab.com/postmarketOS/pmaports/-/issues/1214).
2021-09-25 11:51:27 +02:00

38 lines
1.5 KiB
Diff

From 07c817b8abc53b86c58171fe1f706acf466828f7 Mon Sep 17 00:00:00 2001
From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Date: Tue, 14 Sep 2021 14:18:05 +0200
Subject: [PATCH 09/10] power: supply: max17042_battery: Clear status bits in
interrupt handler
The gauge requires us to clear the status bits manually for some alerts
to be properly dismissed. Previously the IRQ was configured to react only
on falling edge, which wasn't technically correct (the ALRT line is active
low), but it had a happy side-effect of preventing interrupt storms
on uncleared alerts from happening.
Fixes: 7fbf6b731bca ("power: supply: max17042: Do not enforce (incorrect) interrupt trigger type")
Cc: <stable@vger.kernel.org>
Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
---
drivers/power/supply/max17042_battery.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c
index 5809ba997093..7cfbca28e703 100644
--- a/drivers/power/supply/max17042_battery.c
+++ b/drivers/power/supply/max17042_battery.c
@@ -879,6 +879,10 @@ static irqreturn_t max17042_thread_handler(int id, void *dev)
max17042_set_soc_threshold(chip, 1);
}
+ /* we implicitly handle all alerts via power_supply_changed */
+ regmap_clear_bits(chip->regmap, MAX17042_STATUS,
+ 0xFFFF & ~(STATUS_POR_BIT | STATUS_BST_BIT));
+
power_supply_changed(chip->battery);
return IRQ_HANDLED;
}
--
2.33.0