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Message-Id: <20240510213858.20327-1-andrei1998@gmail.com>
Date: Fri, 10 May 2024 16:38:58 -0500
From: Andrei Aldea <andrei1998@...il.com>
To: linux@...ck-us.net
Cc: jdelvare@...e.com,
linux-hwmon@...r.kernel.org,
linux-kernel@...r.kernel.org,
Andrei Aldea <andrei1998@...il.com>
Subject: Re: [PATCH v2] hwmon: (lm80) Add support for Texas Instruments AMC80
Add support for AMC80 which is register compatible with LM96080
PS -let me know if you'd like me to update other broken links in docs.
Signed-off-by: Andrei Aldea <andrei1998@...il.com>
---
Documentation/hwmon/lm80.rst | 20 +++++++++++++++-----
drivers/hwmon/Kconfig | 4 ++--
drivers/hwmon/lm80.c | 6 ++++++
3 files changed, 23 insertions(+), 7 deletions(-)
diff --git a/Documentation/hwmon/lm80.rst b/Documentation/hwmon/lm80.rst
index c53186abd82e..bb223b408e15 100644
--- a/Documentation/hwmon/lm80.rst
+++ b/Documentation/hwmon/lm80.rst
@@ -9,9 +9,9 @@ Supported chips:
Addresses scanned: I2C 0x28 - 0x2f
- Datasheet: Publicly available at the National Semiconductor website
+ Datasheet: Publicly available at the Texas Instruments website
- http://www.national.com/
+ http://www.ti.com/product/LM80
* National Semiconductor LM96080
@@ -19,10 +19,19 @@ Supported chips:
Addresses scanned: I2C 0x28 - 0x2f
- Datasheet: Publicly available at the National Semiconductor website
+ Datasheet: Publicly available at the Texas Instruments website
- http://www.national.com/
+ http://www.ti.com/product/LM96080
+ * Texas Instruments AMC80
+
+ Prefix: "amc80"
+
+ Addresses scanned: I2C 0x28 - 0x2f
+
+ Datasheet: Publicly available at the Texas Instruments website
+
+ http://www.ti.com/product/AMC80
Authors:
- Frodo Looijaard <frodol@....nl>,
@@ -35,7 +44,8 @@ This driver implements support for the National Semiconductor LM80.
It is described as a 'Serial Interface ACPI-Compatible Microprocessor
System Hardware Monitor'. The LM96080 is a more recent incarnation,
it is pin and register compatible, with a few additional features not
-yet supported by the driver.
+yet supported by the driver. The AMC80 is pin and register compatible
+with the LM96080 and only changes the manufacturer ID.
The LM80 implements one temperature sensor, two fan rotation speed sensors,
seven voltage sensors, alarms, and some miscellaneous stuff.
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 83945397b6eb..7a2a7e854c8c 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1446,11 +1446,11 @@ config SENSORS_LM78
will be called lm78.
config SENSORS_LM80
- tristate "National Semiconductor LM80 and LM96080"
+ tristate "National Semiconductor LM80 and compatibles"
depends on I2C
help
If you say yes here you get support for National Semiconductor
- LM80 and LM96080 sensor chips.
+ LM80, LM96080 and Texas Instruments AMC80 sensor chips.
This driver can also be built as a module. If so, the module
will be called lm80.
diff --git a/drivers/hwmon/lm80.c b/drivers/hwmon/lm80.c
index 63c7831bd3e1..0355b9d849be 100644
--- a/drivers/hwmon/lm80.c
+++ b/drivers/hwmon/lm80.c
@@ -573,6 +573,11 @@ static int lm80_detect(struct i2c_client *client, struct i2c_board_info *info)
return -ENODEV;
name = "lm96080";
+
+ /* Check for AMC80 version which is register compatible with lm96080 */
+ } else if (man_id == 0x80 && dev_id == 0x08) {
+ name = "amc80";
+
} else {
/* Check 6-bit addressing */
for (i = 0x2a; i <= 0x3d; i++) {
@@ -624,6 +629,7 @@ static int lm80_probe(struct i2c_client *client)
static const struct i2c_device_id lm80_id[] = {
{ "lm80", 0 },
{ "lm96080", 1 },
+ { "amc80", 2},
{ }
};
MODULE_DEVICE_TABLE(i2c, lm80_id);
--
2.39.3 (Apple Git-146)
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