linux-kernel - [PATCHv2 04/12] power: supply: generic-adc-battery: fix unit scaling

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Message-Id: <20230314225535.1321736-5-sre@kernel.org>
Date:   Tue, 14 Mar 2023 23:55:27 +0100
From:   Sebastian Reichel <sre@...nel.org>
To:     Sebastian Reichel <sre@...nel.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Matti Vaittinen <mazziesaccount@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: [PATCHv2 04/12] power: supply: generic-adc-battery: fix unit scaling

power-supply properties are reported in µV, µA and µW.
The IIO API provides mV, mA, mW, so the values need to
be multiplied by 1000.

Fixes: e60fea794e6e ("power: battery: Generic battery driver using IIO")
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
Reviewed-by: Matti Vaittinen <mazziesaccount@...il.com>
Signed-off-by: Sebastian Reichel <sre@...nel.org>
---
 drivers/power/supply/generic-adc-battery.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/power/supply/generic-adc-battery.c b/drivers/power/supply/generic-adc-battery.c
index 917bd2a6cc52..535972a332b3 100644
--- a/drivers/power/supply/generic-adc-battery.c
+++ b/drivers/power/supply/generic-adc-battery.c
@@ -136,6 +136,9 @@ static int read_channel(struct gab *adc_bat, enum power_supply_property psp,
 			result);
 	if (ret < 0)
 		pr_err("read channel error\n");
+	else
+		*result *= 1000;
+
 	return ret;
 }
 
-- 
2.39.2