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[34.91.210.221]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-65fabf6d1c6sm3282988a12.17.2026.03.02.05.32.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Mar 2026 05:32:20 -0800 (PST) From: =?utf-8?q?Andr=C3=A9_Draszik?= Date: Mon, 02 Mar 2026 13:32:07 +0000 Subject: [PATCH v3 08/11] power: supply: max17042: support standard shunt-resistor-micro-ohms DT property 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: <20260302-max77759-fg-v3-8-3c5f01dbda23@linaro.org> References: <20260302-max77759-fg-v3-0-3c5f01dbda23@linaro.org> In-Reply-To: <20260302-max77759-fg-v3-0-3c5f01dbda23@linaro.org> To: Hans de Goede , Krzysztof Kozlowski , Marek Szyprowski , Sebastian Krzyszkowiak , Purism Kernel Team , Sebastian Reichel , Rob Herring , Conor Dooley , Ramakrishna Pallala 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 shunt-resistor-micro-ohms is a standard property used to describe the value of a shunt resistor required when measuring currents. Standard properties should be used instead of vendor-specific ones of similar intention when possible. Try to read it from DT, and fall back to the vendor-specific property maxim,rsns-microohm if unsuccessful for compatibility with existing DTs. Reviewed-by: Peter Griffin Signed-off-by: Andr=C3=A9 Draszik --- drivers/power/supply/max17042_battery.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply= /max17042_battery.c index 0a6960bbf3a2..e21d2bd7e231 100644 --- a/drivers/power/supply/max17042_battery.c +++ b/drivers/power/supply/max17042_battery.c @@ -925,8 +925,12 @@ max17042_get_of_pdata(struct max17042_chip *chip) /* * Require current sense resistor value to be specified for * current-sense functionality to be enabled at all. + * maxim,rsns-microohm is the property name used by older DTs and kept + * for compatibility. */ - if (of_property_read_u32(np, "maxim,rsns-microohm", &prop) =3D=3D 0) { + if ((of_property_read_u32(np, "shunt-resistor-micro-ohms", + &prop) =3D=3D 0) || + (of_property_read_u32(np, "maxim,rsns-microohm", &prop) =3D=3D 0)) { pdata->r_sns =3D prop; pdata->enable_current_sense =3D true; } --=20 2.53.0.473.g4a7958ca14-goog