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hwmon: (pmbus/zl6100) Add support for ZLS1003, ZLS4009 and ZL8802

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Add support for Renesas ZL8802 Dual Channel/Dual Phase PMBus DC/DC
Digital Controller as well as ZLS1003 and ZLS4009 custom DC/DC
controller chips.

Signed-off-by: Erik Rosen <erik.rosen@metormote.com>
Link: https://lore.kernel.org/r/20210423153329.33457-2-erik.rosen@metormote.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Erik Rosen 2021-04-23 17:33:28 +02:00 committed by Guenter Roeck
parent 6e9ef8ca68
commit ab9d85e9d5
1 changed files with 80 additions and 14 deletions
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84
drivers/hwmon/pmbus/zl6100.c
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@ -18,7 +18,7 @@
#include "pmbus.h"
enum chips { zl2004, zl2005, zl2006, zl2008, zl2105, zl2106, zl6100, zl6105,
zl9101, zl9117 };
zl8802, zl9101, zl9117, zls1003, zls4009 };
struct zl6100_data {
int id;
@ -34,6 +34,13 @@ struct zl6100_data {
#define ZL6100_MFR_XTEMP_ENABLE BIT(7)
#define ZL8802_MFR_USER_GLOBAL_CONFIG 0xe9
#define ZL8802_MFR_TMON_ENABLE BIT(12)
#define ZL8802_MFR_USER_CONFIG 0xd1
#define ZL8802_MFR_XTEMP_ENABLE_2 BIT(1)
#define ZL8802_MFR_DDC_CONFIG 0xd3
#define ZL8802_MFR_PHASES_MASK 0x0007
#define MFR_VMON_OV_FAULT_LIMIT 0xf5
#define MFR_VMON_UV_FAULT_LIMIT 0xf6
#define MFR_READ_VMON 0xf7
@ -132,7 +139,7 @@ static int zl6100_read_word_data(struct i2c_client *client, int page,
struct zl6100_data *data = to_zl6100_data(info);
int ret, vreg;
if (page > 0)
if (page >= info->pages)
return -ENXIO;
if (data->id == zl2005) {
@ -191,7 +198,7 @@ static int zl6100_read_byte_data(struct i2c_client *client, int page, int reg)
struct zl6100_data *data = to_zl6100_data(info);
int ret, status;
if (page > 0)
if (page >= info->pages)
return -ENXIO;
zl6100_wait(data);
@ -230,7 +237,7 @@ static int zl6100_write_word_data(struct i2c_client *client, int page, int reg,
struct zl6100_data *data = to_zl6100_data(info);
int ret, vreg;
if (page > 0)
if (page >= info->pages)
return -ENXIO;
switch (reg) {
@ -271,7 +278,7 @@ static int zl6100_write_byte(struct i2c_client *client, int page, u8 value)
struct zl6100_data *data = to_zl6100_data(info);
int ret;
if (page > 0)
if (page >= info->pages)
return -ENXIO;
zl6100_wait(data);
@ -287,6 +294,10 @@ static const struct i2c_device_id zl6100_id[] = {
{"bmr462", zl2008},
{"bmr463", zl2008},
{"bmr464", zl2008},
{"bmr465", zls4009},
{"bmr466", zls1003},
{"bmr467", zls4009},
{"bmr469", zl8802},
{"zl2004", zl2004},
{"zl2005", zl2005},
{"zl2006", zl2006},
@ -295,15 +306,18 @@ static const struct i2c_device_id zl6100_id[] = {
{"zl2106", zl2106},
{"zl6100", zl6100},
{"zl6105", zl6105},
{"zl8802", zl8802},
{"zl9101", zl9101},
{"zl9117", zl9117},
{"zls1003", zls1003},
{"zls4009", zls4009},
{ }
};
MODULE_DEVICE_TABLE(i2c, zl6100_id);
static int zl6100_probe(struct i2c_client *client)
{
int ret;
int ret, i;
struct zl6100_data *data;
struct pmbus_driver_info *info;
u8 device_id[I2C_SMBUS_BLOCK_MAX + 1];
@ -367,18 +381,70 @@ static int zl6100_probe(struct i2c_client *client)
| PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
/*
* ZL2004, ZL9101M, and ZL9117M support monitoring an extra voltage
* (VMON for ZL2004, VDRV for ZL9101M and ZL9117M). Report it as vmon.
* ZL2004, ZL8802, ZL9101M, ZL9117M and ZLS4009 support monitoring
* an extra voltage (VMON for ZL2004, ZL8802 and ZLS4009,
* VDRV for ZL9101M and ZL9117M). Report it as vmon.
*/
if (data->id == zl2004 || data->id == zl9101 || data->id == zl9117)
if (data->id == zl2004 || data->id == zl8802 || data->id == zl9101 ||
data->id == zl9117 || data->id == zls4009)
info->func[0] |= PMBUS_HAVE_VMON | PMBUS_HAVE_STATUS_VMON;
/*
* ZL8802 has two outputs that can be used either independently or in
* a current sharing configuration. The driver uses the DDC_CONFIG
* register to check if the module is running with independent or
* shared outputs. If the module is in shared output mode, only one
* output voltage will be reported.
*/
if (data->id == zl8802) {
info->pages = 2;
info->func[0] |= PMBUS_HAVE_IIN;
ret = i2c_smbus_read_word_data(client, ZL8802_MFR_DDC_CONFIG);
if (ret < 0)
return ret;
data->access = ktime_get();
zl6100_wait(data);
if (ret & ZL8802_MFR_PHASES_MASK)
info->func[1] |= PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT;
else
info->func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
| PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT;
for (i = 0; i < 2; i++) {
ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, i);
if (ret < 0)
return ret;
data->access = ktime_get();
zl6100_wait(data);
ret = i2c_smbus_read_word_data(client, ZL8802_MFR_USER_CONFIG);
if (ret < 0)
return ret;
if (ret & ZL8802_MFR_XTEMP_ENABLE_2)
info->func[i] |= PMBUS_HAVE_TEMP2;
data->access = ktime_get();
zl6100_wait(data);
}
ret = i2c_smbus_read_word_data(client, ZL8802_MFR_USER_GLOBAL_CONFIG);
if (ret < 0)
return ret;
if (ret & ZL8802_MFR_TMON_ENABLE)
info->func[0] |= PMBUS_HAVE_TEMP3;
} else {
ret = i2c_smbus_read_word_data(client, ZL6100_MFR_CONFIG);
if (ret < 0)
return ret;
if (ret & ZL6100_MFR_XTEMP_ENABLE)
info->func[0] |= PMBUS_HAVE_TEMP2;
}
data->access = ktime_get();
zl6100_wait(data);