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Mon, 08 Dec 2025 06:59:26 -0800 (PST) From: Erikas Bitovtas Date: Mon, 08 Dec 2025 16:59:20 +0200 Subject: [PATCH v3 1/2] arm64: dts: qcom: msm8939-asus-z00t: add battery Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251208-b4-battery-hall-v3-1-84e2157705a4@gmail.com> References: <20251208-b4-battery-hall-v3-0-84e2157705a4@gmail.com> In-Reply-To: <20251208-b4-battery-hall-v3-0-84e2157705a4@gmail.com> To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, Erikas Bitovtas X-Mailer: b4 0.14.3 This device tracks remaining battery capacity percentage using voltage mode BMS. This commit enables the pm8916_bms node and adds a battery node to track its capacity. Battery properties were taken from the information printed on the battery itself and downstream device tree for a battery named "nvt+atl_3000mah" [1] [1] https://github.com/Asus-MSM8916/android_kernel_asus_msm8916/blob/10.x/a= rch/arm/boot/dts/qcom/ASUS_ZE550KL_1936167_3000mAh_3p4COV_VBMS_Final.dtsi Signed-off-by: Erikas Bitovtas Reviewed-by: Konrad Dybcio --- arch/arm64/boot/dts/qcom/msm8939-asus-z00t.dts | 61 ++++++++++++++++++++++= ++++ 1 file changed, 61 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/msm8939-asus-z00t.dts b/arch/arm64/bo= ot/dts/qcom/msm8939-asus-z00t.dts index ebb548e62e02..d0f0f80dd326 100644 --- a/arch/arm64/boot/dts/qcom/msm8939-asus-z00t.dts +++ b/arch/arm64/boot/dts/qcom/msm8939-asus-z00t.dts @@ -20,6 +20,61 @@ aliases { serial0 =3D &blsp_uart2; }; =20 + battery: battery { + compatible =3D "simple-battery"; + device-chemistry =3D "lithium-ion-polymer"; + voltage-min-design-microvolt =3D <3400000>; + voltage-max-design-microvolt =3D <4400000>; + energy-full-design-microwatt-hours =3D <11500000>; + charge-full-design-microamp-hours =3D <3000000>; + + ocv-capacity-celsius =3D <(-20) 0 25 40 60>; + ocv-capacity-table-0 =3D <4378000 100>, <4220000 95>, <4125000 90>, + <4071000 85>, <3977000 80>, <3916000 75>, <3866000 70>, + <3838000 65>, <3822000 60>, <3809000 55>, <3797000 50>, + <3784000 45>, <3771000 40>, <3757000 35>, <3743000 30>, + <3726000 25>, <3707000 20>, <3688000 16>, <3670000 13>, + <3655000 11>, <3648000 10>, <3636000 9>, <3624000 8>, + <3612000 7>, <3592000 6>, <3569000 5>, <3540000 4>, + <3494000 3>, <3418000 2>, <3289000 1>, <3000000 0>; + + ocv-capacity-table-1 =3D <4378000 100>, <4292000 95>, <4226000 90>, + <4166000 85>, <4109000 80>, <4064000 75>, <3992000 70>, + <3942000 65>, <3898000 60>, <3859000 55>, <3826000 50>, + <3802000 45>, <3788000 40>, <3779000 35>, <3768000 30>, + <3752000 25>, <3732000 20>, <3712000 16>, <3696000 13>, + <3688000 11>, <3684000 10>, <3680000 9>, <3675000 8>, + <3669000 7>, <3658000 6>, <3636000 5>, <3599000 4>, + <3544000 3>, <3466000 2>, <3341000 1>, <3000000 0>; + + ocv-capacity-table-2 =3D <4372000 100>, <4306000 95>, <4247000 90>, + <4190000 85>, <4134000 80>, <4081000 75>, <4030000 70>, + <3984000 65>, <3930000 60>, <3884000 55>, <3850000 50>, + <3826000 45>, <3804000 40>, <3786000 35>, <3770000 30>, + <3753000 25>, <3734000 20>, <3712000 16>, <3693000 13>, + <3686000 11>, <3684000 10>, <3682000 9>, <3680000 8>, + <3676000 7>, <3668000 6>, <3643000 5>, <3600000 4>, + <3542000 3>, <3462000 2>, <3340000 1>, <3000000 0>; + + ocv-capacity-table-3 =3D <4365000 100>, <4304000 95>, <4246000 90>, + <4189000 85>, <4133000 80>, <4080000 75>, <4030000 70>, + <3985000 65>, <3933000 60>, <3886000 55>, <3852000 50>, + <3827000 45>, <3806000 40>, <3789000 35>, <3769000 30>, + <3746000 25>, <3726000 20>, <3706000 16>, <3688000 13>, + <3681000 11>, <3678000 10>, <3676000 9>, <3676000 8>, + <3672000 7>, <3660000 6>, <3634000 5>, <3588000 4>, + <3528000 3>, <3448000 2>, <3322000 1>, <3000000 0>; + + ocv-capacity-table-4 =3D <4358000 100>, <4298000 95>, <4240000 90>, + <4183000 85>, <4128000 80>, <4076000 75>, <4027000 70>, + <3983000 65>, <3935000 60>, <3887000 55>, <3852000 50>, + <3827000 45>, <3806000 40>, <3789000 35>, <3764000 30>, + <3738000 25>, <3715000 20>, <3695000 16>, <3677000 13>, + <3672000 11>, <3669000 10>, <3667000 9>, <3666000 8>, + <3662000 7>, <3652000 6>, <3622000 5>, <3577000 4>, + <3518000 3>, <3440000 2>, <3321000 1>, <3000000 0>; + }; + chosen { stdout-path =3D "serial0"; }; @@ -135,6 +190,12 @@ &mpss_mem { reg =3D <0x0 0x86800000 0x0 0x5500000>; }; =20 +&pm8916_bms { + monitored-battery =3D <&battery>; + + status =3D "okay"; +}; + &pm8916_codec { qcom,micbias-lvl =3D <2800>; qcom,mbhc-vthreshold-low =3D <75 150 237 450 500>; --=20 2.52.0