linux-kernel - [PATCH 4/6] arm64: dts: qcom: sdm845-db845c: enable pmi8998 charger

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Date:   Wed, 27 Apr 2022 19:40:29 +0100
From:   Caleb Connolly <caleb.connolly@...aro.org>
To:     caleb.connolly@...aro.org, Sebastian Reichel <sre@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Cc:     Amit Pundir <amit.pundir@...aro.org>,
        Sumit Semwal <sumit.semwal@...aro.org>
Subject: [PATCH 4/6] arm64: dts: qcom: sdm845-db845c: enable pmi8998 charger

Enable the smb2 charger driver on the db845c and add a simple-battery
node to report the correct VBAT voltage.

Signed-off-by: Caleb Connolly <caleb.connolly@...aro.org>
---
 arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
index 40a290b6d4f3..3b73b5305c51 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
@@ -240,6 +240,18 @@ vph_pwr: vph-pwr-regulator {
 
 		vin-supply = <&vbat_som>;
 	};
+
+	/*
+	 * The db845c doesn't actually have a battery, but the charger circuitry
+	 * is still wired up to support one, it needs to be programmed for nominal
+	 * vbat voltage. See the vbat-regulator above.
+	 */
+	battery: battery {
+		compatible = "simple-battery";
+
+		voltage-min-design-microvolt = <4200000>;
+		voltage-max-design-microvolt = <4200000>;
+	};
 };
 
 &adsp_pas {
@@ -603,6 +615,12 @@ &pmi8998_rradc {
 	status = "okay";
 };
 
+&pmi8998_charger {
+	status = "okay";
+
+	monitored-battery = <&battery>;
+};
+
 /* QUAT I2S Uses 4 I2S SD Lines for audio on LT9611 HDMI Bridge */
 &q6afedai {
 	qi2s@22 {
-- 
2.36.0