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charset="utf-8" Add support for the adm1281 Hot-Swap Controller and Digital Power and Energy Monitor Signed-off-by: Jose Ramon San Buenaventura Acked-by: Conor Dooley --- Documentation/devicetree/bindings/hwmon/adi,adm1275.yaml | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/hwmon/adi,adm1275.yaml b/Doc= umentation/devicetree/bindings/hwmon/adi,adm1275.yaml index b68061294..5b076d677 100644 --- a/Documentation/devicetree/bindings/hwmon/adi,adm1275.yaml +++ b/Documentation/devicetree/bindings/hwmon/adi,adm1275.yaml @@ -5,7 +5,7 @@ $id: http://devicetree.org/schemas/hwmon/adi,adm1275.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# =20 -title: Analog Devices ADM1075/ADM127x/ADM129x digital power monitors +title: Analog Devices ADM1075/ADM127x/ADM1281/ADM129x digital power monito= rs =20 maintainers: - Krzysztof Kozlowski @@ -27,6 +27,7 @@ properties: - adi,adm1275 - adi,adm1276 - adi,adm1278 + - adi,adm1281 - adi,adm1293 - adi,adm1294 =20 @@ -91,6 +92,7 @@ allOf: contains: enum: - adi,adm1278 + - adi,adm1281 - adi,adm1293 - adi,adm1294 then: --=20 2.39.2 From nobody Fri May 17 10:34:32 2024 Received: from mx0b-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 20278196; 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charset="utf-8" Adding support for adm1281 which is similar to adm1275 ADM1281 has STATUS_CML read support which is also being added. Signed-off-by: Jose Ramon San Buenaventura --- Documentation/hwmon/adm1275.rst | 14 +++++++++++--- drivers/hwmon/pmbus/Kconfig | 4 ++-- drivers/hwmon/pmbus/adm1275.c | 27 +++++++++++++++++++++++++-- 3 files changed, 38 insertions(+), 7 deletions(-) diff --git a/Documentation/hwmon/adm1275.rst b/Documentation/hwmon/adm1275.= rst index 804590eea..467daf8ce 100644 --- a/Documentation/hwmon/adm1275.rst +++ b/Documentation/hwmon/adm1275.rst @@ -43,6 +43,14 @@ Supported chips: =20 Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1278.pdf =20 + * Analog Devices ADM1281 + + Prefix: 'adm1281' + + Addresses scanned: - + + Datasheet: https://www.analog.com/media/en/technical-documentation/dat= a-sheets/adm1281.pdf + * Analog Devices ADM1293/ADM1294 =20 Prefix: 'adm1293', 'adm1294' @@ -58,10 +66,10 @@ Description ----------- =20 This driver supports hardware monitoring for Analog Devices ADM1075, ADM12= 72, -ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 Hot-Swap Controller and +ADM1275, ADM1276, ADM1278, ADM1281, ADM1293, and ADM1294 Hot-Swap Controll= er and Digital Power Monitors. =20 -ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 are hot-= swap +ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1281, ADM1293, and ADM1294= are hot-swap controllers that allow a circuit board to be removed from or inserted into a live backplane. They also feature current and voltage readback via an integrated 12 bit analog-to-digital converter (ADC), accessed using a @@ -144,5 +152,5 @@ temp1_highest Highest observed temperature. temp1_reset_history Write any value to reset history. =20 Temperature attributes are supported on ADM1272 and - ADM1278. + ADM1278, and ADM1281. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 557ae0c41..9c1d0d7d5 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -51,8 +51,8 @@ config SENSORS_ADM1275 tristate "Analog Devices ADM1275 and compatibles" help If you say yes here you get hardware monitoring support for Analog - Devices ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1293, - and ADM1294 Hot-Swap Controller and Digital Power Monitors. + Devices ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1281, + ADM1293, and ADM1294 Hot-Swap Controller and Digital Power Monitors. =20 This driver can also be built as a module. If so, the module will be called adm1275. diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c index e2c61d6fa..6c3e8840f 100644 --- a/drivers/hwmon/pmbus/adm1275.c +++ b/drivers/hwmon/pmbus/adm1275.c @@ -18,7 +18,7 @@ #include #include "pmbus.h" =20 -enum chips { adm1075, adm1272, adm1275, adm1276, adm1278, adm1293, adm1294= }; +enum chips { adm1075, adm1272, adm1275, adm1276, adm1278, adm1281, adm1293= , adm1294 }; =20 #define ADM1275_MFR_STATUS_IOUT_WARN2 BIT(0) #define ADM1293_MFR_STATUS_VAUX_UV_WARN BIT(5) @@ -101,6 +101,7 @@ struct adm1275_data { bool have_pin_max; bool have_temp_max; bool have_power_sampling; + bool have_status_cml; struct pmbus_driver_info info; }; =20 @@ -469,6 +470,22 @@ static int adm1275_read_byte_data(struct i2c_client *c= lient, int page, int reg) ret |=3D PB_VOLTAGE_UV_WARNING; } break; + case PMBUS_STATUS_CML: + if (!data->have_status_cml) + return -ENXIO; + + ret =3D pmbus_read_byte_data(client, page, PMBUS_STATUS_BYTE); + if (ret < 0) + break; + + if (ret & PB_STATUS_CML) { + ret =3D pmbus_read_byte_data(client, page, PMBUS_STATUS_CML); + if (ret < 0) + break; + } else { + ret =3D 0; + } + break; default: ret =3D -ENODATA; break; @@ -482,6 +499,7 @@ static const struct i2c_device_id adm1275_id[] =3D { { "adm1275", adm1275 }, { "adm1276", adm1276 }, { "adm1278", adm1278 }, + { "adm1281", adm1281 }, { "adm1293", adm1293 }, { "adm1294", adm1294 }, { } @@ -555,7 +573,8 @@ static int adm1275_probe(struct i2c_client *client) client->name, mid->name); =20 if (mid->driver_data =3D=3D adm1272 || mid->driver_data =3D=3D adm1278 || - mid->driver_data =3D=3D adm1293 || mid->driver_data =3D=3D adm1294) + mid->driver_data =3D=3D adm1281 || mid->driver_data =3D=3D adm1293 || + mid->driver_data =3D=3D adm1294) config_read_fn =3D i2c_smbus_read_word_data; else config_read_fn =3D i2c_smbus_read_byte_data; @@ -703,6 +722,10 @@ static int adm1275_probe(struct i2c_client *client) PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; break; case adm1278: + case adm1281: + if (data->id =3D=3D adm1281) + data->have_status_cml =3D true; + data->have_vout =3D true; data->have_pin_max =3D true; data->have_temp_max =3D true; --=20 2.39.2