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[34.141.175.244]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b935aeee867sm124205066b.66.2026.02.26.23.15.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Feb 2026 23:15:12 -0800 (PST) From: =?utf-8?q?Andr=C3=A9_Draszik?= Date: Fri, 27 Feb 2026 07:15:12 +0000 Subject: [PATCH v2 07/11] power: supply: max17042: time to empty is meaningless when charging 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: <20260227-max77759-fg-v2-7-e50be5f191f0@linaro.org> References: <20260227-max77759-fg-v2-0-e50be5f191f0@linaro.org> In-Reply-To: <20260227-max77759-fg-v2-0-e50be5f191f0@linaro.org> To: Hans de Goede , Krzysztof Kozlowski , Marek Szyprowski , Sebastian Krzyszkowiak , Purism Kernel Team , Sebastian Reichel , Rob Herring , Conor Dooley Cc: Peter Griffin , Tudor Ambarus , Juan Yescas , Amit Sunil Dhamne , kernel-team@android.com, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, =?utf-8?q?Andr=C3=A9_Draszik?= X-Mailer: b4 0.14.3 When charging, the fuel gauge reports U16_MAX as time to empty. Ignoring this special case (as this driver currently does), causes the remaining time to be reported as ~102hours, which is incorrect. Update the code to not return anything in this case. Signed-off-by: Andr=C3=A9 Draszik Reviewed-by: Peter Griffin --- drivers/power/supply/max17042_battery.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply= /max17042_battery.c index 8808c0d2ad10..bae0670e2496 100644 --- a/drivers/power/supply/max17042_battery.c +++ b/drivers/power/supply/max17042_battery.c @@ -434,6 +434,10 @@ static int max17042_get_property(struct power_supply *= psy, if (ret < 0) return ret; =20 + /* when charging, the value is not meaningful */ + if (data =3D=3D U16_MAX) + return -ENODATA; + val->intval =3D data * 5625 / 1000; break; default: --=20 2.53.0.473.g4a7958ca14-goog