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path: root/drivers/hwmon/pmbus/adm1275.c
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Diffstat (limited to 'drivers/hwmon/pmbus/adm1275.c')
-rw-r--r--drivers/hwmon/pmbus/adm1275.c358
1 files changed, 259 insertions, 99 deletions
diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c
index 60aad9570f01..188af4c89f40 100644
--- a/drivers/hwmon/pmbus/adm1275.c
+++ b/drivers/hwmon/pmbus/adm1275.c
@@ -21,46 +21,120 @@
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/i2c.h>
+#include <linux/bitops.h>
#include "pmbus.h"
-enum chips { adm1075, adm1275, adm1276 };
+enum chips { adm1075, adm1275, adm1276, adm1293, adm1294 };
+
+#define ADM1275_MFR_STATUS_IOUT_WARN2 BIT(0)
+#define ADM1293_MFR_STATUS_VAUX_UV_WARN BIT(5)
+#define ADM1293_MFR_STATUS_VAUX_OV_WARN BIT(6)
#define ADM1275_PEAK_IOUT 0xd0
#define ADM1275_PEAK_VIN 0xd1
#define ADM1275_PEAK_VOUT 0xd2
#define ADM1275_PMON_CONFIG 0xd4
-#define ADM1275_VIN_VOUT_SELECT (1 << 6)
-#define ADM1275_VRANGE (1 << 5)
-#define ADM1075_IRANGE_50 (1 << 4)
-#define ADM1075_IRANGE_25 (1 << 3)
-#define ADM1075_IRANGE_MASK ((1 << 3) | (1 << 4))
+#define ADM1275_VIN_VOUT_SELECT BIT(6)
+#define ADM1275_VRANGE BIT(5)
+#define ADM1075_IRANGE_50 BIT(4)
+#define ADM1075_IRANGE_25 BIT(3)
+#define ADM1075_IRANGE_MASK (BIT(3) | BIT(4))
+
+#define ADM1293_IRANGE_25 0
+#define ADM1293_IRANGE_50 BIT(6)
+#define ADM1293_IRANGE_100 BIT(7)
+#define ADM1293_IRANGE_200 (BIT(6) | BIT(7))
+#define ADM1293_IRANGE_MASK (BIT(6) | BIT(7))
+
+#define ADM1293_VIN_SEL_012 BIT(2)
+#define ADM1293_VIN_SEL_074 BIT(3)
+#define ADM1293_VIN_SEL_210 (BIT(2) | BIT(3))
+#define ADM1293_VIN_SEL_MASK (BIT(2) | BIT(3))
+
+#define ADM1293_VAUX_EN BIT(1)
#define ADM1275_IOUT_WARN2_LIMIT 0xd7
#define ADM1275_DEVICE_CONFIG 0xd8
-#define ADM1275_IOUT_WARN2_SELECT (1 << 4)
+#define ADM1275_IOUT_WARN2_SELECT BIT(4)
#define ADM1276_PEAK_PIN 0xda
-
-#define ADM1275_MFR_STATUS_IOUT_WARN2 (1 << 0)
-
#define ADM1075_READ_VAUX 0xdd
#define ADM1075_VAUX_OV_WARN_LIMIT 0xde
#define ADM1075_VAUX_UV_WARN_LIMIT 0xdf
+#define ADM1293_IOUT_MIN 0xe3
+#define ADM1293_PIN_MIN 0xe4
#define ADM1075_VAUX_STATUS 0xf6
-#define ADM1075_VAUX_OV_WARN (1<<7)
-#define ADM1075_VAUX_UV_WARN (1<<6)
+#define ADM1075_VAUX_OV_WARN BIT(7)
+#define ADM1075_VAUX_UV_WARN BIT(6)
struct adm1275_data {
int id;
bool have_oc_fault;
+ bool have_uc_fault;
+ bool have_vout;
+ bool have_vaux_status;
+ bool have_mfr_vaux_status;
+ bool have_iout_min;
+ bool have_pin_min;
+ bool have_pin_max;
struct pmbus_driver_info info;
};
#define to_adm1275_data(x) container_of(x, struct adm1275_data, info)
+struct coefficients {
+ s16 m;
+ s16 b;
+ s16 R;
+};
+
+static const struct coefficients adm1075_coefficients[] = {
+ [0] = { 27169, 0, -1 }, /* voltage */
+ [1] = { 806, 20475, -1 }, /* current, irange25 */
+ [2] = { 404, 20475, -1 }, /* current, irange50 */
+ [3] = { 0, -1, 8549 }, /* power, irange25 */
+ [4] = { 0, -1, 4279 }, /* power, irange50 */
+};
+
+static const struct coefficients adm1275_coefficients[] = {
+ [0] = { 19199, 0, -2 }, /* voltage, vrange set */
+ [1] = { 6720, 0, -1 }, /* voltage, vrange not set */
+ [2] = { 807, 20475, -1 }, /* current */
+};
+
+static const struct coefficients adm1276_coefficients[] = {
+ [0] = { 19199, 0, -2 }, /* voltage, vrange set */
+ [1] = { 6720, 0, -1 }, /* voltage, vrange not set */
+ [2] = { 807, 20475, -1 }, /* current */
+ [3] = { 6043, 0, -2 }, /* power, vrange set */
+ [4] = { 2115, 0, -1 }, /* power, vrange not set */
+};
+
+static const struct coefficients adm1293_coefficients[] = {
+ [0] = { 3333, -1, 0 }, /* voltage, vrange 1.2V */
+ [1] = { 5552, -5, -1 }, /* voltage, vrange 7.4V */
+ [2] = { 19604, -50, -2 }, /* voltage, vrange 21V */
+ [3] = { 8000, -100, -2 }, /* current, irange25 */
+ [4] = { 4000, -100, -2 }, /* current, irange50 */
+ [5] = { 20000, -1000, -3 }, /* current, irange100 */
+ [6] = { 10000, -1000, -3 }, /* current, irange200 */
+ [7] = { 10417, 0, -1 }, /* power, 1.2V, irange25 */
+ [8] = { 5208, 0, -1 }, /* power, 1.2V, irange50 */
+ [9] = { 26042, 0, -2 }, /* power, 1.2V, irange100 */
+ [10] = { 13021, 0, -2 }, /* power, 1.2V, irange200 */
+ [11] = { 17351, 0, -2 }, /* power, 7.4V, irange25 */
+ [12] = { 8676, 0, -2 }, /* power, 7.4V, irange50 */
+ [13] = { 4338, 0, -2 }, /* power, 7.4V, irange100 */
+ [14] = { 21689, 0, -3 }, /* power, 7.4V, irange200 */
+ [15] = { 6126, 0, -2 }, /* power, 21V, irange25 */
+ [16] = { 30631, 0, -3 }, /* power, 21V, irange50 */
+ [17] = { 15316, 0, -3 }, /* power, 21V, irange100 */
+ [18] = { 7658, 0, -3 }, /* power, 21V, irange200 */
+};
+
static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
{
const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
@@ -72,42 +146,37 @@ static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
switch (reg) {
case PMBUS_IOUT_UC_FAULT_LIMIT:
- if (data->have_oc_fault) {
- ret = -ENXIO;
- break;
- }
+ if (!data->have_uc_fault)
+ return -ENXIO;
ret = pmbus_read_word_data(client, 0, ADM1275_IOUT_WARN2_LIMIT);
break;
case PMBUS_IOUT_OC_FAULT_LIMIT:
- if (!data->have_oc_fault) {
- ret = -ENXIO;
- break;
- }
+ if (!data->have_oc_fault)
+ return -ENXIO;
ret = pmbus_read_word_data(client, 0, ADM1275_IOUT_WARN2_LIMIT);
break;
case PMBUS_VOUT_OV_WARN_LIMIT:
- if (data->id != adm1075) {
- ret = -ENODATA;
- break;
- }
+ if (data->have_vout)
+ return -ENODATA;
ret = pmbus_read_word_data(client, 0,
ADM1075_VAUX_OV_WARN_LIMIT);
break;
case PMBUS_VOUT_UV_WARN_LIMIT:
- if (data->id != adm1075) {
- ret = -ENODATA;
- break;
- }
+ if (data->have_vout)
+ return -ENODATA;
ret = pmbus_read_word_data(client, 0,
ADM1075_VAUX_UV_WARN_LIMIT);
break;
case PMBUS_READ_VOUT:
- if (data->id != adm1075) {
- ret = -ENODATA;
- break;
- }
+ if (data->have_vout)
+ return -ENODATA;
ret = pmbus_read_word_data(client, 0, ADM1075_READ_VAUX);
break;
+ case PMBUS_VIRT_READ_IOUT_MIN:
+ if (!data->have_iout_min)
+ return -ENXIO;
+ ret = pmbus_read_word_data(client, 0, ADM1293_IOUT_MIN);
+ break;
case PMBUS_VIRT_READ_IOUT_MAX:
ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_IOUT);
break;
@@ -117,11 +186,14 @@ static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
case PMBUS_VIRT_READ_VIN_MAX:
ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_VIN);
break;
+ case PMBUS_VIRT_READ_PIN_MIN:
+ if (!data->have_pin_min)
+ return -ENXIO;
+ ret = pmbus_read_word_data(client, 0, ADM1293_PIN_MIN);
+ break;
case PMBUS_VIRT_READ_PIN_MAX:
- if (data->id == adm1275) {
- ret = -ENXIO;
- break;
- }
+ if (!data->have_pin_max)
+ return -ENXIO;
ret = pmbus_read_word_data(client, 0, ADM1276_PEAK_PIN);
break;
case PMBUS_VIRT_RESET_IOUT_HISTORY:
@@ -129,8 +201,8 @@ static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
case PMBUS_VIRT_RESET_VIN_HISTORY:
break;
case PMBUS_VIRT_RESET_PIN_HISTORY:
- if (data->id == adm1275)
- ret = -ENXIO;
+ if (!data->have_pin_max)
+ return -ENXIO;
break;
default:
ret = -ENODATA;
@@ -142,6 +214,8 @@ static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
static int adm1275_write_word_data(struct i2c_client *client, int page, int reg,
u16 word)
{
+ const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+ const struct adm1275_data *data = to_adm1275_data(info);
int ret;
if (page)
@@ -155,6 +229,9 @@ static int adm1275_write_word_data(struct i2c_client *client, int page, int reg,
break;
case PMBUS_VIRT_RESET_IOUT_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_IOUT, 0);
+ if (!ret && data->have_iout_min)
+ ret = pmbus_write_word_data(client, 0,
+ ADM1293_IOUT_MIN, 0);
break;
case PMBUS_VIRT_RESET_VOUT_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VOUT, 0);
@@ -164,6 +241,9 @@ static int adm1275_write_word_data(struct i2c_client *client, int page, int reg,
break;
case PMBUS_VIRT_RESET_PIN_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1276_PEAK_PIN, 0);
+ if (!ret && data->have_pin_min)
+ ret = pmbus_write_word_data(client, 0,
+ ADM1293_PIN_MIN, 0);
break;
default:
ret = -ENODATA;
@@ -186,29 +266,40 @@ static int adm1275_read_byte_data(struct i2c_client *client, int page, int reg)
ret = pmbus_read_byte_data(client, page, PMBUS_STATUS_IOUT);
if (ret < 0)
break;
+ if (!data->have_oc_fault && !data->have_uc_fault)
+ break;
mfr_status = pmbus_read_byte_data(client, page,
PMBUS_STATUS_MFR_SPECIFIC);
- if (mfr_status < 0) {
- ret = mfr_status;
- break;
- }
+ if (mfr_status < 0)
+ return mfr_status;
if (mfr_status & ADM1275_MFR_STATUS_IOUT_WARN2) {
ret |= data->have_oc_fault ?
PB_IOUT_OC_FAULT : PB_IOUT_UC_FAULT;
}
break;
case PMBUS_STATUS_VOUT:
- if (data->id != adm1075) {
- ret = -ENODATA;
- break;
- }
+ if (data->have_vout)
+ return -ENODATA;
ret = 0;
- mfr_status = pmbus_read_byte_data(client, 0,
- ADM1075_VAUX_STATUS);
- if (mfr_status & ADM1075_VAUX_OV_WARN)
- ret |= PB_VOLTAGE_OV_WARNING;
- if (mfr_status & ADM1075_VAUX_UV_WARN)
- ret |= PB_VOLTAGE_UV_WARNING;
+ if (data->have_vaux_status) {
+ mfr_status = pmbus_read_byte_data(client, 0,
+ ADM1075_VAUX_STATUS);
+ if (mfr_status < 0)
+ return mfr_status;
+ if (mfr_status & ADM1075_VAUX_OV_WARN)
+ ret |= PB_VOLTAGE_OV_WARNING;
+ if (mfr_status & ADM1075_VAUX_UV_WARN)
+ ret |= PB_VOLTAGE_UV_WARNING;
+ } else if (data->have_mfr_vaux_status) {
+ mfr_status = pmbus_read_byte_data(client, page,
+ PMBUS_STATUS_MFR_SPECIFIC);
+ if (mfr_status < 0)
+ return mfr_status;
+ if (mfr_status & ADM1293_MFR_STATUS_VAUX_OV_WARN)
+ ret |= PB_VOLTAGE_OV_WARNING;
+ if (mfr_status & ADM1293_MFR_STATUS_VAUX_UV_WARN)
+ ret |= PB_VOLTAGE_UV_WARNING;
+ }
break;
default:
ret = -ENODATA;
@@ -221,6 +312,8 @@ static const struct i2c_device_id adm1275_id[] = {
{ "adm1075", adm1075 },
{ "adm1275", adm1275 },
{ "adm1276", adm1276 },
+ { "adm1293", adm1293 },
+ { "adm1294", adm1294 },
{ }
};
MODULE_DEVICE_TABLE(i2c, adm1275_id);
@@ -234,6 +327,8 @@ static int adm1275_probe(struct i2c_client *client,
struct pmbus_driver_info *info;
struct adm1275_data *data;
const struct i2c_device_id *mid;
+ const struct coefficients *coefficients;
+ int vindex = -1, voindex = -1, cindex = -1, pindex = -1;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_READ_BYTE_DATA
@@ -290,61 +385,38 @@ static int adm1275_probe(struct i2c_client *client,
info->format[PSC_VOLTAGE_IN] = direct;
info->format[PSC_VOLTAGE_OUT] = direct;
info->format[PSC_CURRENT_OUT] = direct;
- info->m[PSC_CURRENT_OUT] = 807;
- info->b[PSC_CURRENT_OUT] = 20475;
- info->R[PSC_CURRENT_OUT] = -1;
+ info->format[PSC_POWER] = direct;
info->func[0] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT;
info->read_word_data = adm1275_read_word_data;
info->read_byte_data = adm1275_read_byte_data;
info->write_word_data = adm1275_write_word_data;
- if (data->id == adm1075) {
- info->m[PSC_VOLTAGE_IN] = 27169;
- info->b[PSC_VOLTAGE_IN] = 0;
- info->R[PSC_VOLTAGE_IN] = -1;
- info->m[PSC_VOLTAGE_OUT] = 27169;
- info->b[PSC_VOLTAGE_OUT] = 0;
- info->R[PSC_VOLTAGE_OUT] = -1;
- } else if (config & ADM1275_VRANGE) {
- info->m[PSC_VOLTAGE_IN] = 19199;
- info->b[PSC_VOLTAGE_IN] = 0;
- info->R[PSC_VOLTAGE_IN] = -2;
- info->m[PSC_VOLTAGE_OUT] = 19199;
- info->b[PSC_VOLTAGE_OUT] = 0;
- info->R[PSC_VOLTAGE_OUT] = -2;
- } else {
- info->m[PSC_VOLTAGE_IN] = 6720;
- info->b[PSC_VOLTAGE_IN] = 0;
- info->R[PSC_VOLTAGE_IN] = -1;
- info->m[PSC_VOLTAGE_OUT] = 6720;
- info->b[PSC_VOLTAGE_OUT] = 0;
- info->R[PSC_VOLTAGE_OUT] = -1;
- }
-
- if (device_config & ADM1275_IOUT_WARN2_SELECT)
- data->have_oc_fault = true;
-
switch (data->id) {
case adm1075:
- info->format[PSC_POWER] = direct;
- info->b[PSC_POWER] = 0;
- info->R[PSC_POWER] = -1;
+ if (device_config & ADM1275_IOUT_WARN2_SELECT)
+ data->have_oc_fault = true;
+ else
+ data->have_uc_fault = true;
+ data->have_pin_max = true;
+ data->have_vaux_status = true;
+
+ coefficients = adm1075_coefficients;
+ vindex = 0;
switch (config & ADM1075_IRANGE_MASK) {
case ADM1075_IRANGE_25:
- info->m[PSC_POWER] = 8549;
- info->m[PSC_CURRENT_OUT] = 806;
+ cindex = 1;
+ pindex = 3;
break;
case ADM1075_IRANGE_50:
- info->m[PSC_POWER] = 4279;
- info->m[PSC_CURRENT_OUT] = 404;
+ cindex = 2;
+ pindex = 4;
break;
default:
dev_err(&client->dev, "Invalid input current range");
- info->m[PSC_POWER] = 0;
- info->m[PSC_CURRENT_OUT] = 0;
break;
}
+
info->func[0] |= PMBUS_HAVE_VIN | PMBUS_HAVE_PIN
| PMBUS_HAVE_STATUS_INPUT;
if (config & ADM1275_VIN_VOUT_SELECT)
@@ -352,6 +424,16 @@ static int adm1275_probe(struct i2c_client *client,
PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
break;
case adm1275:
+ if (device_config & ADM1275_IOUT_WARN2_SELECT)
+ data->have_oc_fault = true;
+ else
+ data->have_uc_fault = true;
+ data->have_vout = true;
+
+ coefficients = adm1275_coefficients;
+ vindex = (config & ADM1275_VRANGE) ? 0 : 1;
+ cindex = 2;
+
if (config & ADM1275_VIN_VOUT_SELECT)
info->func[0] |=
PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
@@ -360,22 +442,100 @@ static int adm1275_probe(struct i2c_client *client,
PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT;
break;
case adm1276:
- info->format[PSC_POWER] = direct;
+ if (device_config & ADM1275_IOUT_WARN2_SELECT)
+ data->have_oc_fault = true;
+ else
+ data->have_uc_fault = true;
+ data->have_vout = true;
+ data->have_pin_max = true;
+
+ coefficients = adm1276_coefficients;
+ vindex = (config & ADM1275_VRANGE) ? 0 : 1;
+ cindex = 2;
+ pindex = (config & ADM1275_VRANGE) ? 3 : 4;
+
info->func[0] |= PMBUS_HAVE_VIN | PMBUS_HAVE_PIN
| PMBUS_HAVE_STATUS_INPUT;
if (config & ADM1275_VIN_VOUT_SELECT)
info->func[0] |=
PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
- if (config & ADM1275_VRANGE) {
- info->m[PSC_POWER] = 6043;
- info->b[PSC_POWER] = 0;
- info->R[PSC_POWER] = -2;
- } else {
- info->m[PSC_POWER] = 2115;
- info->b[PSC_POWER] = 0;
- info->R[PSC_POWER] = -1;
+ break;
+ case adm1293:
+ case adm1294:
+ data->have_iout_min = true;
+ data->have_pin_min = true;
+ data->have_pin_max = true;
+ data->have_mfr_vaux_status = true;
+
+ coefficients = adm1293_coefficients;
+
+ voindex = 0;
+ switch (config & ADM1293_VIN_SEL_MASK) {
+ case ADM1293_VIN_SEL_012: /* 1.2V */
+ vindex = 0;
+ break;
+ case ADM1293_VIN_SEL_074: /* 7.4V */
+ vindex = 1;
+ break;
+ case ADM1293_VIN_SEL_210: /* 21V */
+ vindex = 2;
+ break;
+ default: /* disabled */
+ break;
}
+
+ switch (config & ADM1293_IRANGE_MASK) {
+ case ADM1293_IRANGE_25:
+ cindex = 3;
+ break;
+ case ADM1293_IRANGE_50:
+ cindex = 4;
+ break;
+ case ADM1293_IRANGE_100:
+ cindex = 5;
+ break;
+ case ADM1293_IRANGE_200:
+ cindex = 6;
+ break;
+ }
+
+ if (vindex >= 0)
+ pindex = 7 + vindex * 4 + (cindex - 3);
+
+ if (config & ADM1293_VAUX_EN)
+ info->func[0] |=
+ PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
+
+ info->func[0] |= PMBUS_HAVE_PIN |
+ PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT;
+
break;
+ default:
+ dev_err(&client->dev, "Unsupported device\n");
+ return -ENODEV;
+ }
+
+ if (voindex < 0)
+ voindex = vindex;
+ if (vindex >= 0) {
+ info->m[PSC_VOLTAGE_IN] = coefficients[vindex].m;
+ info->b[PSC_VOLTAGE_IN] = coefficients[vindex].b;
+ info->R[PSC_VOLTAGE_IN] = coefficients[vindex].R;
+ }
+ if (voindex >= 0) {
+ info->m[PSC_VOLTAGE_OUT] = coefficients[voindex].m;
+ info->b[PSC_VOLTAGE_OUT] = coefficients[voindex].b;
+ info->R[PSC_VOLTAGE_OUT] = coefficients[voindex].R;
+ }
+ if (cindex >= 0) {
+ info->m[PSC_CURRENT_OUT] = coefficients[cindex].m;
+ info->b[PSC_CURRENT_OUT] = coefficients[cindex].b;
+ info->R[PSC_CURRENT_OUT] = coefficients[cindex].R;
+ }
+ if (pindex >= 0) {
+ info->m[PSC_POWER] = coefficients[pindex].m;
+ info->b[PSC_POWER] = coefficients[pindex].b;
+ info->R[PSC_POWER] = coefficients[pindex].R;
}
return pmbus_do_probe(client, id, info);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 06:45:36 +0000