From: Matheus Castello <matheus@castello.eng.br>
To: sre@kernel.org, krzk@kernel.org, robh+dt@kernel.org
Cc: mark.rutland@arm.com, cw00.choi@samsung.com,
b.zolnierkie@samsung.com, lee.jones@linaro.org,
linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Matheus Castello <matheus@castello.eng.br>
Subject: [PATCH v7 5/5] power: supply: max17040: Send uevent in SOC and status change
Date: Sun, 17 Nov 2019 11:13:35 -0300 [thread overview]
Message-ID: <20191117141335.23404-6-matheus@castello.eng.br> (raw)
In-Reply-To: <20191117141335.23404-1-matheus@castello.eng.br>
Notify core through power_supply_changed() in case of changes in state
of charge and power supply status. This is useful for user-space to
efficiently update current battery level.
Signed-off-by: Matheus Castello <matheus@castello.eng.br>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
---
drivers/power/supply/max17040_battery.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/power/supply/max17040_battery.c b/drivers/power/supply/max17040_battery.c
index 3fc9e1c7b257..1f5afabdbabc 100644
--- a/drivers/power/supply/max17040_battery.c
+++ b/drivers/power/supply/max17040_battery.c
@@ -209,10 +209,19 @@ static void max17040_check_changes(struct i2c_client *client)
static void max17040_work(struct work_struct *work)
{
struct max17040_chip *chip;
+ int last_soc, last_status;
chip = container_of(work, struct max17040_chip, work.work);
+
+ /* store SOC and status to check changes */
+ last_soc = chip->soc;
+ last_status = chip->status;
max17040_check_changes(chip->client);
+ /* check changes and send uevent */
+ if (last_soc != chip->soc || last_status != chip->status)
+ power_supply_changed(chip->battery);
+
queue_delayed_work(system_power_efficient_wq, &chip->work,
MAX17040_DELAY);
}
--
2.24.0.rc2
prev parent reply other threads:[~2019-11-17 14:15 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-17 14:13 [PATCH v7 0/5] power: supply: MAX17040: Add IRQ for low level and alert SOC changes Matheus Castello
2019-11-17 14:13 ` [PATCH v7 1/5] power: supply: max17040: Add IRQ handler for low SOC alert Matheus Castello
2019-11-17 14:13 ` [PATCH v7 2/5] dt-bindings: power: supply: Max17040: Add DT bindings for max17040 fuel gauge Matheus Castello
2019-11-17 14:13 ` [PATCH v7 3/5] devicetree: mfd: max14577: Add reference to max14040_battery.txt descriptions Matheus Castello
2019-11-17 14:13 ` [PATCH v7 4/5] power: supply: max17040: Config alert SOC low level threshold from FDT Matheus Castello
2019-11-26 14:52 ` Sebastian Reichel
2019-11-28 1:06 ` Matheus Castello
2019-11-29 18:33 ` Sebastian Reichel
2019-11-17 14:13 ` Matheus Castello [this message]
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