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hwmon: (lm90) Add support for Philips SA56004
Add support for Philips SA56004, an LM86 compatible temperature sensor. Signed-off-by: Stijn Devriendt <sdevrien@cisco.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
This commit is contained in:
Stijn Devriendt
Guenter Roeck
parent
f22aaaa70d
commit
2ef017935d
@ -113,7 +113,11 @@ Supported chips:
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Prefix: 'w83l771'
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Addresses scanned: I2C 0x4c
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Datasheet: Not publicly available, can be requested from Nuvoton
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* Philips/NXP SA56004X
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Prefix: 'sa56004'
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Addresses scanned: I2C 0x48 through 0x4F
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Datasheet: Publicly available at NXP website
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http://ics.nxp.com/products/interface/datasheet/sa56004x.pdf
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Author: Jean Delvare <khali@linux-fr.org>
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@ -193,6 +197,9 @@ W83L771AWG/ASG
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* The AWG and ASG variants only differ in package format.
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* Diode ideality factor configuration (remote sensor) at 0xE3
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SA56004X:
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* Better local resolution
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All temperature values are given in degrees Celsius. Resolution
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is 1.0 degree for the local temperature, 0.125 degree for the remote
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temperature, except for the MAX6657, MAX6658 and MAX6659 which have a
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@ -623,7 +623,7 @@ config SENSORS_LM90
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LM86, LM89 and LM99, Analog Devices ADM1032, ADT7461, and ADT7461A,
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Maxim MAX6646, MAX6647, MAX6648, MAX6649, MAX6657, MAX6658, MAX6659,
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MAX6680, MAX6681, MAX6692, MAX6695, MAX6696, ON Semiconductor NCT1008,
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and Winbond/Nuvoton W83L771W/G/AWG/ASG sensor chips.
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Winbond/Nuvoton W83L771W/G/AWG/ASG and Philips SA56004 sensor chips.
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This driver can also be built as a module. If so, the module
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will be called lm90.
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@ -54,6 +54,9 @@
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* and extended mode. They are mostly compatible with LM90 except for a data
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* format difference for the temperature value registers.
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*
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* This driver also supports the SA56004 from Philips. This device is
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* pin-compatible with the LM86, the ED/EDP parts are also address-compatible.
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*
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* Since the LM90 was the first chipset supported by this driver, most
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* comments will refer to this chipset, but are actually general and
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* concern all supported chipsets, unless mentioned otherwise.
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@ -96,13 +99,15 @@
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* MAX6659 can have address 0x4c, 0x4d or 0x4e.
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* MAX6680 and MAX6681 can have address 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b,
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* 0x4c, 0x4d or 0x4e.
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* SA56004 can have address 0x48 through 0x4F.
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*/
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static const unsigned short normal_i2c[] = {
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0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
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0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x48, 0x49, 0x4a, 0x4b, 0x4c,
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0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
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enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
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max6646, w83l771, max6696 };
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max6646, w83l771, max6696, sa56004 };
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/*
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* The LM90 registers
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@ -152,6 +157,10 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
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#define MAX6659_REG_R_LOCAL_EMERG 0x17
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#define MAX6659_REG_W_LOCAL_EMERG 0x17
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/* SA56004 registers */
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#define SA56004_REG_R_LOCAL_TEMPL 0x22
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#define LM90_DEF_CONVRATE_RVAL 6 /* Def conversion rate register value */
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#define LM90_MAX_CONVRATE_MS 16000 /* Maximum conversion rate in ms */
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@ -192,6 +201,7 @@ static const struct i2c_device_id lm90_id[] = {
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{ "max6696", max6696 },
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{ "nct1008", adt7461 },
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{ "w83l771", w83l771 },
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{ "sa56004", sa56004 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, lm90_id);
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@ -204,6 +214,8 @@ struct lm90_params {
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u16 alert_alarms; /* Which alarm bits trigger ALERT# */
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/* Upper 8 bits for max6695/96 */
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u8 max_convrate; /* Maximum conversion rate register value */
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u8 reg_local_ext; /* Local extension register if
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LM90_HAVE_LOCAL_EXT is set*/
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};
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static const struct lm90_params lm90_params[] = {
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@ -238,16 +250,19 @@ static const struct lm90_params lm90_params[] = {
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.flags = LM90_HAVE_LOCAL_EXT,
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.alert_alarms = 0x7c,
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.max_convrate = 6,
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.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
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},
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[max6657] = {
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.flags = LM90_HAVE_LOCAL_EXT,
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.alert_alarms = 0x7c,
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.max_convrate = 8,
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.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
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},
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[max6659] = {
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.flags = LM90_HAVE_LOCAL_EXT | LM90_HAVE_EMERGENCY,
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.alert_alarms = 0x7c,
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.max_convrate = 8,
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.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
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},
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[max6680] = {
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.flags = LM90_HAVE_OFFSET,
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@ -259,12 +274,20 @@ static const struct lm90_params lm90_params[] = {
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| LM90_HAVE_EMERGENCY_ALARM | LM90_HAVE_TEMP3,
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.alert_alarms = 0x187c,
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.max_convrate = 6,
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.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
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},
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[w83l771] = {
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.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
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.alert_alarms = 0x7c,
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.max_convrate = 8,
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},
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[sa56004] = {
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.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
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| LM90_HAVE_LOCAL_EXT,
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.alert_alarms = 0x7b,
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.max_convrate = 9,
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.reg_local_ext = SA56004_REG_R_LOCAL_TEMPL,
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},
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};
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/*
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@ -286,6 +309,7 @@ struct lm90_data {
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u16 alert_alarms; /* Which alarm bits trigger ALERT# */
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/* Upper 8 bits for max6695/96 */
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u8 max_convrate; /* Maximum conversion rate */
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u8 reg_local_ext; /* local extension register offset */
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/* registers values */
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s8 temp8[8]; /* 0: local low limit
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@ -454,7 +478,7 @@ static struct lm90_data *lm90_update_device(struct device *dev)
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if (data->flags & LM90_HAVE_LOCAL_EXT) {
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lm90_read16(client, LM90_REG_R_LOCAL_TEMP,
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MAX6657_REG_R_LOCAL_TEMPL,
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data->reg_local_ext,
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&data->temp11[4]);
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} else {
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if (lm90_read_reg(client, LM90_REG_R_LOCAL_TEMP,
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@ -1263,6 +1287,11 @@ static int lm90_detect(struct i2c_client *new_client,
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name = "w83l771";
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}
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}
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} else
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if (man_id == 0xA1) { /* NXP Semiconductor/Philips */
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if (chip_id == 0x00 && address >= 0x48 && address <= 0x4F) {
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name = "sa56004";
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}
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}
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if (!name) { /* identification failed */
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@ -1372,6 +1401,11 @@ static int lm90_probe(struct i2c_client *new_client,
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/* Set maximum conversion rate */
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data->max_convrate = lm90_params[data->kind].max_convrate;
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if (data->flags & LM90_HAVE_LOCAL_EXT) {
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data->reg_local_ext = lm90_params[data->kind].reg_local_ext;
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WARN_ON(data->reg_local_ext == 0);
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}
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/* Initialize the LM90 chip */
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lm90_init_client(new_client);
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