Thread (23 messages) 23 messages, 3 authors, 2024-08-27
STALE683d REVIEWED: 1 (0M)

[PATCH v4 08/10] ARM: dts: samsung: exynos4212-tab3: Add battery node with charge current value

From: Artur Weber <aweber.kernel@gmail.com>
Date: 2024-08-16 08:19:31
Also in: linux-devicetree, linux-pm, linux-samsung-soc, lkml
Subsystem: arm/samsung s3c, s5p and exynos arm architectures, the rest · Maintainers: Krzysztof Kozlowski, Peter Griffin, Linus Torvalds

This value was verified by comparing register dumps of the MAX77693
charger with on mainline with a downstream kernel under Android; the
value on downstream was set to 1.8 amps when charging with a proper
charger.

Add it to a new battery node and pass it to the MAX77693 charger
so that the fast charge current setting can be used for charging.

Tested-by: Henrik Grimler <redacted>
Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
---
Changes in v2:
- Switched to monitored-battery
---
 arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)
diff --git a/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi b/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi
index 9bc05961577d..3c905bfedd96 100644
--- a/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi
+++ b/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi
@@ -159,6 +159,7 @@ charger_reg: CHARGER {
 
 			charger {
 				compatible = "maxim,max77693-charger";
+				monitored-battery = <&battery>;
 
 				maxim,constant-microvolt = <4350000>;
 				maxim,min-system-microvolt = <3600000>;
@@ -300,6 +301,11 @@ submic_bias_reg: voltage-regulator-5 {
 		regulator-max-microvolt = <2800000>;
 	};
 
+	battery: battery {
+		compatible = "simple-battery";
+		constant-charge-current-max-microamp = <1800000>;
+	};
+
 	sound: sound {
 		compatible = "samsung,midas-audio";
 		model = "TAB3";
-- 
2.46.0

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