linux-kernel - [PATCH RFC 10/11] ARM: dts: samsung: exynos4212-tab3: Set fast charge current for MAX77693

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Message-Id: <20240530-max77693-charger-extcon-v1-10-dc2a9e5bdf30@gmail.com>
Date: Thu, 30 May 2024 10:56:00 +0200
From: Artur Weber <aweber.kernel@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, 
 Chanwoo Choi <cw00.choi@...sung.com>
Cc: Sebastian Reichel <sre@...nel.org>, Rob Herring <robh@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Lee Jones <lee@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Alim Akhtar <alim.akhtar@...sung.com>, linux-pm@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org, 
 ~postmarketos/upstreaming@...ts.sr.ht, Henrik Grimler <henrik@...mler.se>, 
 Wolfgang Wiedmeyer <wolfgit@...dmeyer.de>, 
 Denis 'GNUtoo' Carikli <GNUtoo@...erdimension.org>, 
 Artur Weber <aweber.kernel@...il.com>
Subject: [PATCH RFC 10/11] ARM: dts: samsung: exynos4212-tab3: Set fast
 charge current for MAX77693

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.

Signed-off-by: Artur Weber <aweber.kernel@...il.com>
---
 arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi b/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi
index e5254e32aa8f..b13c135bd944 100644
--- a/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi
+++ b/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi
@@ -158,6 +158,7 @@ charger {
 				maxim,min-system-microvolt = <3600000>;
 				maxim,thermal-regulation-celsius = <100>;
 				maxim,battery-overcurrent-microamp = <3500000>;
+				maxim,fast-charge-current-microamp = <1800000>;
 				maxim,charge-input-threshold-microvolt = <4300000>;
 			};
 		};

-- 
2.45.1