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authorXo Wang <xow@google.com>2017-08-29 14:21:17 -0700
committerGuenter Roeck <linux@roeck-us.net>2017-08-30 06:31:13 -0700
commit5783ec2e5c102a6a04d17e07bd9d008a464ed9bc (patch)
tree3ee810cbf60ba5477bbbe97cff8c838d913b1d6c /drivers/hwmon
parentee983171d49b4b5c957d3f94c68ee1fd7a007281 (diff)
downloadlinux-5783ec2e5c102a6a04d17e07bd9d008a464ed9bc.tar.bz2
hwmon: (pmbus/lm25066) Add support for TI LM5066I
The TI LM5066I hotswap controller is a more accurate version of the LM5066 device already supported. It has different measurement conversion coefficients than the LM5066, so it needs to be recognized as a different device. Signed-off-by: Xo Wang <xow@google.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/pmbus/lm25066.c41
1 files changed, 39 insertions, 2 deletions
diff --git a/drivers/hwmon/pmbus/lm25066.c b/drivers/hwmon/pmbus/lm25066.c
index 232b4af13e12..10d17fb8f283 100644
--- a/drivers/hwmon/pmbus/lm25066.c
+++ b/drivers/hwmon/pmbus/lm25066.c
@@ -28,7 +28,7 @@
#include <linux/i2c.h>
#include "pmbus.h"
-enum chips { lm25056, lm25063, lm25066, lm5064, lm5066 };
+enum chips { lm25056, lm25063, lm25066, lm5064, lm5066, lm5066i };
#define LM25066_READ_VAUX 0xd0
#define LM25066_MFR_READ_IIN 0xd1
@@ -65,7 +65,7 @@ struct __coeff {
#define PSC_CURRENT_IN_L (PSC_NUM_CLASSES)
#define PSC_POWER_L (PSC_NUM_CLASSES + 1)
-static struct __coeff lm25066_coeff[5][PSC_NUM_CLASSES + 2] = {
+static struct __coeff lm25066_coeff[6][PSC_NUM_CLASSES + 2] = {
[lm25056] = {
[PSC_VOLTAGE_IN] = {
.m = 16296,
@@ -210,6 +210,41 @@ static struct __coeff lm25066_coeff[5][PSC_NUM_CLASSES + 2] = {
.m = 16,
},
},
+ [lm5066i] = {
+ [PSC_VOLTAGE_IN] = {
+ .m = 4617,
+ .b = -140,
+ .R = -2,
+ },
+ [PSC_VOLTAGE_OUT] = {
+ .m = 4602,
+ .b = 500,
+ .R = -2,
+ },
+ [PSC_CURRENT_IN] = {
+ .m = 15076,
+ .b = -504,
+ .R = -2,
+ },
+ [PSC_CURRENT_IN_L] = {
+ .m = 7645,
+ .b = 100,
+ .R = -2,
+ },
+ [PSC_POWER] = {
+ .m = 1701,
+ .b = -4000,
+ .R = -3,
+ },
+ [PSC_POWER_L] = {
+ .m = 861,
+ .b = -965,
+ .R = -3,
+ },
+ [PSC_TEMPERATURE] = {
+ .m = 16,
+ },
+ },
};
struct lm25066_data {
@@ -250,6 +285,7 @@ static int lm25066_read_word_data(struct i2c_client *client, int page, int reg)
ret = DIV_ROUND_CLOSEST(ret * 70, 453);
break;
case lm5066:
+ case lm5066i:
/* VIN: 2.18 mV VAUX: 725 uV LSB */
ret = DIV_ROUND_CLOSEST(ret * 725, 2180);
break;
@@ -511,6 +547,7 @@ static const struct i2c_device_id lm25066_id[] = {
{"lm25066", lm25066},
{"lm5064", lm5064},
{"lm5066", lm5066},
+ {"lm5066i", lm5066i},
{ }
};