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[111.242.101.165]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-76bccfbd656sm10566612b3a.72.2025.08.04.05.48.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Aug 2025 05:48:43 -0700 (PDT) From: ChiShih Tsai To: linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org Cc: jdelvare@suse.com, linux@roeck-us.net, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, corbet@lwn.net, t630619@gmail.com, ChiShih Tsai Subject: [PATCH 2/2] hwmon: (pmbus/adm1275) add sq24905c support Date: Mon, 4 Aug 2025 20:48:05 +0800 Message-ID: <20250804124806.540-3-tomtsai764@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250804124806.540-1-tomtsai764@gmail.com> References: <20250804124806.540-1-tomtsai764@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add support for sq24905c which is similar to adm1275 and other chips of the series. Signed-off-by: ChiShih Tsai --- Documentation/hwmon/adm1275.rst | 24 ++++++++++++++++-------- drivers/hwmon/pmbus/Kconfig | 5 +++-- drivers/hwmon/pmbus/adm1275.c | 27 +++++++++++++++++++-------- 3 files changed, 38 insertions(+), 18 deletions(-) diff --git a/Documentation/hwmon/adm1275.rst b/Documentation/hwmon/adm1275.= rst index 57bd7a850558..914f009f34e0 100644 --- a/Documentation/hwmon/adm1275.rst +++ b/Documentation/hwmon/adm1275.rst @@ -67,6 +67,14 @@ Supported chips: =20 Datasheet: https://www.analog.com/media/en/technical-documentation/dat= a-sheets/ADM1293_1294.pdf =20 + * Silergy SQ24905C + + Prefix: 'sq24905c' + + Addresses scanned: - + + Datasheet: https://www.silergy.com/download/downloadFile?id=3D5669&typ= e=3Dproduct&ftype=3Dnote + Author: Guenter Roeck =20 =20 @@ -74,14 +82,14 @@ Description ----------- =20 This driver supports hardware monitoring for Analog Devices ADM1075, ADM12= 72, -ADM1273, ADM1275, ADM1276, ADM1278, ADM1281, ADM1293, and ADM1294 Hot-Swap -Controller and Digital Power Monitors. +ADM1273, ADM1275, ADM1276, ADM1278, ADM1281, ADM1293, ADM1294, and SQ24905C +Hot-Swap Controller and Digital Power Monitors. =20 -ADM1075, ADM1272, ADM1273, 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), acces= sed -using a PMBus interface. +ADM1075, ADM1272, ADM1273, ADM1275, ADM1276, ADM1278, ADM1281, ADM1293, +ADM1294 and SQ24905C are hot-swap controllers that allow a circuit board t= o 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 PMBus interface. =20 The driver is a client driver to the core PMBus driver. Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers. @@ -160,5 +168,5 @@ temp1_highest Highest observed temperature. temp1_reset_history Write any value to reset history. =20 Temperature attributes are supported on ADM1272, - ADM1273, ADM1278, and ADM1281. + ADM1273, ADM1278, ADM1281 and SQ24905C. =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 55e492452ce8..7485bc6b2e8a 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -51,8 +51,9 @@ 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, ADM1273, ADM1275, ADM1276, ADM1278, ADM1281, - ADM1293, and ADM1294 Hot-Swap Controller and Digital Power Monitors. + Devices ADM1075, ADM1272, ADM1273, ADM1275, ADM1276, ADM1278, + ADM1281, ADM1293, ADM1294 and SQ24905C 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 7d175baa5de2..1c032aaac379 100644 --- a/drivers/hwmon/pmbus/adm1275.c +++ b/drivers/hwmon/pmbus/adm1275.c @@ -18,7 +18,8 @@ #include #include "pmbus.h" =20 -enum chips { adm1075, adm1272, adm1273, adm1275, adm1276, adm1278, adm1281= , adm1293, adm1294 }; +enum chips { adm1075, adm1272, adm1273, adm1275, adm1276, adm1278, adm1281, + adm1293, adm1294, sq24905c }; =20 #define ADM1275_MFR_STATUS_IOUT_WARN2 BIT(0) #define ADM1293_MFR_STATUS_VAUX_UV_WARN BIT(5) @@ -486,6 +487,7 @@ static const struct i2c_device_id adm1275_id[] =3D { { "adm1281", adm1281 }, { "adm1293", adm1293 }, { "adm1294", adm1294 }, + { "MC09C", sq24905c }, { } }; MODULE_DEVICE_TABLE(i2c, adm1275_id); @@ -533,8 +535,10 @@ static int adm1275_probe(struct i2c_client *client) return ret; } if (ret !=3D 3 || strncmp(block_buffer, "ADI", 3)) { - dev_err(&client->dev, "Unsupported Manufacturer ID\n"); - return -ENODEV; + if (ret !=3D 2 || strncmp(block_buffer, "SY", 2)) { + dev_err(&client->dev, "Unsupported Manufacturer ID\n"); + return -ENODEV; + } } =20 ret =3D i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, block_buffer); @@ -558,7 +562,8 @@ static int adm1275_probe(struct i2c_client *client) =20 if (mid->driver_data =3D=3D adm1272 || mid->driver_data =3D=3D adm1273 || mid->driver_data =3D=3D adm1278 || mid->driver_data =3D=3D adm1281 || - mid->driver_data =3D=3D adm1293 || mid->driver_data =3D=3D adm1294) + mid->driver_data =3D=3D adm1293 || mid->driver_data =3D=3D adm1294 || + mid->driver_data =3D=3D sq24905c) config_read_fn =3D i2c_smbus_read_word_data; else config_read_fn =3D i2c_smbus_read_byte_data; @@ -708,6 +713,7 @@ static int adm1275_probe(struct i2c_client *client) break; case adm1278: case adm1281: + case sq24905c: data->have_vout =3D true; data->have_pin_max =3D true; data->have_temp_max =3D true; @@ -786,9 +792,12 @@ static int adm1275_probe(struct i2c_client *client) return -ENODEV; } =20 - if (data->have_power_sampling && + if ((data->have_power_sampling && of_property_read_u32(client->dev.of_node, - "adi,power-sample-average", &avg) =3D=3D 0) { + "adi,power-sample-average", &avg) =3D=3D 0) || + (data->have_power_sampling && + of_property_read_u32(client->dev.of_node, + "silergy,power-sample-average", &avg) =3D=3D 0)) { if (!avg || avg > ADM1275_SAMPLES_AVG_MAX || BIT(__fls(avg)) !=3D avg) { dev_err(&client->dev, @@ -804,8 +813,10 @@ static int adm1275_probe(struct i2c_client *client) } } =20 - if (of_property_read_u32(client->dev.of_node, - "adi,volt-curr-sample-average", &avg) =3D=3D 0) { + if ((of_property_read_u32(client->dev.of_node, + "adi,volt-curr-sample-average", &avg) =3D=3D 0) || + (of_property_read_u32(client->dev.of_node, + "silergy,volt-curr-sample-average", &avg) =3D=3D 0)) { if (!avg || avg > ADM1275_SAMPLES_AVG_MAX || BIT(__fls(avg)) !=3D avg) { dev_err(&client->dev, --=20 2.43.0