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Subject[PATCH] hwmon: (pmbus/max16601) Add MAX16602 support
Date
From e2a1f7d1a836188a9b284fc473af9118aa160ddb Mon Sep 17 00:00:00 2001
From: Atif Ofluoglu <mailto:atif.ofluoglu@maximintegrated.com>
Date: Fri, 15 Apr 2022 16:34:29 +0300
Subject: [PATCH] hwmon: (pmbus/max16601) Add MAX16602 support

Adding another MAX16602 chip support to MAX16601 driver
Tested with MAX16602 works as expected.

Signed-off-by: Atif Ofluoglu <mailto:atif.ofluoglu@maximintegrated.com>
---
Documentation/hwmon/max16601.rst | 8 ++++++++
drivers/hwmon/pmbus/Kconfig | 4 ++--
drivers/hwmon/pmbus/max16601.c | 13 ++++++++-----
3 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/Documentation/hwmon/max16601.rst b/Documentation/hwmon/max16601.rst
index 92c0a7d7808c..6a4eef8efbaf 100644
--- a/Documentation/hwmon/max16601.rst
+++ b/Documentation/hwmon/max16601.rst
@@ -21,6 +21,14 @@ Supported chips:

Datasheet: Not published

+ * Maxim MAX16602
+
+ Prefix: 'max16602'
+
+ Addresses scanned: -
+
+ Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX16602.pdf
+
Author: Guenter Roeck <mailto:linux@roeck-us.net>


diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index a2ea1d5a8765..53683d2d0fb2 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -228,10 +228,10 @@ config SENSORS_MAX16064
be called max16064.

config SENSORS_MAX16601
- tristate "Maxim MAX16508, MAX16601"
+ tristate "Maxim MAX16508, MAX16601, MAX16602"
help
If you say yes here you get hardware monitoring support for Maxim
- MAX16508 and MAX16601.
+ MAX16508, MAX16601 and MAX16602.

This driver can also be built as a module. If so, the module will
be called max16601.
diff --git a/drivers/hwmon/pmbus/max16601.c b/drivers/hwmon/pmbus/max16601.c
index 5a226a564776..b628405e6586 100644
--- a/drivers/hwmon/pmbus/max16601.c
+++ b/drivers/hwmon/pmbus/max16601.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * Hardware monitoring driver for Maxim MAX16508 and MAX16601.
+ * Hardware monitoring driver for Maxim MAX16508, MAX16601 and MAX16602.
*
* Implementation notes:
*
@@ -31,7 +31,7 @@

#include "pmbus.h"

-enum chips { max16508, max16601 };
+enum chips { max16508, max16601, max16602 };

#define REG_DEFAULT_NUM_POP 0xc4
#define REG_SETPT_DVID 0xd1
@@ -202,7 +202,7 @@ static int max16601_identify(struct i2c_client *client,
else
info->vrm_version[0] = vr12;

- if (data->id != max16601)
+ if (data->id != max16601 && data->id != max16602)
return 0;

reg = i2c_smbus_read_byte_data(client, REG_DEFAULT_NUM_POP);
@@ -264,6 +264,7 @@ static void max16601_remove(void *_data)
static const struct i2c_device_id max16601_id[] = {
{"max16508", max16508},
{"max16601", max16601},
+ {"max16602", max16602},
{}
};
MODULE_DEVICE_TABLE(i2c, max16601_id);
@@ -280,13 +281,15 @@ static int max16601_get_id(struct i2c_client *client)
return -ENODEV;

/*
- * PMBUS_IC_DEVICE_ID is expected to return "MAX16601y.xx"
- * or "MAX16500y.xx".
+ * PMBUS_IC_DEVICE_ID is expected to return "MAX16601y.xx" or
+ * MAX16602y.xx or "MAX16500y.xx".cdxxcccccccccc
*/
if (!strncmp(buf, "MAX16500", 8)) {
id = max16508;
} else if (!strncmp(buf, "MAX16601", 8)) {
id = max16601;
+ } else if (!strncmp(buf, "MAX16602", 8)) {
+ id = max16602;
} else {
buf[ret] = '\0';
dev_err(dev, "Unsupported chip '%s'\n", buf);
--
2.25.1
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