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authorLinus Torvalds <torvalds@linux-foundation.org>2018-04-09 19:59:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-09 19:59:54 -0700
commit71219b3494a32b5e1f22c4b1a5be2eb0d5524057 (patch)
tree682f2079dd82f5b929aa550e96a2fd417e135419 /drivers/hwmon
parentc18bb396d3d261ebbb4efbc05129c5d354c541e4 (diff)
parente3a2d2be510ec8a35ecd2a17a42467d417962bb7 (diff)
Merge tag 'hwmon-for-linus-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck: - added chip support: new Centaur CPUs, ADM1272, NCT6796D - ucd9000: added debugfs attributes, gpio support - cleanup and minor bug fixes * tag 'hwmon-for-linus-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (via-cputemp) support new centaur CPUs hwmon: (nct6775) Fix writing pwmX_mode hwmon: (lm92) Add max6635 to lm92_id[] hwmon: (pmbus/adm1275) Add support for ADM1272 hwmon: (lm92) Do not try to detect MAX6635 hwmon: (ucd9000) Add debugfs attributes to provide mfr_status hwmon: (ucd9000) Add gpio chip interface hwmon: (nct6775) Add support for NCT6796D hwmon: (nct6775) Initialize boolean variables with declaration hwmon: (nct6775) Improve fan6/pwm6 support hwmon: (nct6775) Use NUM_FAN consistently hwmon: (g762) handle cleanup with devm_add_action hwmon: (sht3x) Update data sheet URL hwmon: (sht21) Update data sheet URLs hwmon: (pmbus/adm1275) Accept negative page register values hwmon: (pmbus/max8688) Accept negative page register values
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/Kconfig5
-rw-r--r--drivers/hwmon/g762.c53
-rw-r--r--drivers/hwmon/lm92.c63
-rw-r--r--drivers/hwmon/nct6775.c231
-rw-r--r--drivers/hwmon/pmbus/Kconfig4
-rw-r--r--drivers/hwmon/pmbus/adm1275.c71
-rw-r--r--drivers/hwmon/pmbus/max8688.c2
-rw-r--r--drivers/hwmon/pmbus/ucd9000.c350
-rw-r--r--drivers/hwmon/sht21.c3
-rw-r--r--drivers/hwmon/via-cputemp.c31
10 files changed, 612 insertions, 201 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 033e57366d56..f249a4428458 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1231,8 +1231,9 @@ config SENSORS_NCT6775
help
If you say yes here you get support for the hardware monitoring
functionality of the Nuvoton NCT6106D, NCT6775F, NCT6776F, NCT6779D,
- NCT6791D, NCT6792D, NCT6793D, and compatible Super-I/O chips. This
- driver replaces the w83627ehf driver for NCT6775F and NCT6776F.
+ NCT6791D, NCT6792D, NCT6793D, NCT6795D, NCT6796D, and compatible
+ Super-I/O chips. This driver replaces the w83627ehf driver for
+ NCT6775F and NCT6776F.
This driver can also be built as a module. If so, the module
will be called nct6775.
diff --git a/drivers/hwmon/g762.c b/drivers/hwmon/g762.c
index 6d1208b2b6d2..6c83c385a7ca 100644
--- a/drivers/hwmon/g762.c
+++ b/drivers/hwmon/g762.c
@@ -128,7 +128,6 @@ enum g762_regs {
G762_REG_FAN_CMD2_GEAR_MODE_1)) >> 2))
struct g762_data {
- struct device *hwmon_dev;
struct i2c_client *client;
struct clk *clk;
@@ -594,6 +593,14 @@ MODULE_DEVICE_TABLE(of, g762_dt_match);
* call to g762_of_clock_disable(). Note that a reference to clock is kept
* in our private data structure to be used in this function.
*/
+static void g762_of_clock_disable(void *data)
+{
+ struct g762_data *g762 = data;
+
+ clk_disable_unprepare(g762->clk);
+ clk_put(g762->clk);
+}
+
static int g762_of_clock_enable(struct i2c_client *client)
{
struct g762_data *data;
@@ -626,6 +633,7 @@ static int g762_of_clock_enable(struct i2c_client *client)
data = i2c_get_clientdata(client);
data->clk = clk;
+ devm_add_action(&client->dev, g762_of_clock_disable, data);
return 0;
clk_unprep:
@@ -637,17 +645,6 @@ static int g762_of_clock_enable(struct i2c_client *client)
return ret;
}
-static void g762_of_clock_disable(struct i2c_client *client)
-{
- struct g762_data *data = i2c_get_clientdata(client);
-
- if (!data->clk)
- return;
-
- clk_disable_unprepare(data->clk);
- clk_put(data->clk);
-}
-
static int g762_of_prop_import_one(struct i2c_client *client,
const char *pname,
int (*psetter)(struct device *dev,
@@ -698,8 +695,6 @@ static int g762_of_clock_enable(struct i2c_client *client)
{
return 0;
}
-
-static void g762_of_clock_disable(struct i2c_client *client) { }
#endif
/*
@@ -1054,6 +1049,7 @@ static inline int g762_fan_init(struct device *dev)
static int g762_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
+ struct device *hwmon_dev;
struct g762_data *data;
int ret;
@@ -1080,35 +1076,15 @@ static int g762_probe(struct i2c_client *client, const struct i2c_device_id *id)
return ret;
ret = g762_of_prop_import(client);
if (ret)
- goto clock_dis;
+ return ret;
/* ... or platform_data */
ret = g762_pdata_prop_import(client);
if (ret)
- goto clock_dis;
+ return ret;
- data->hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
+ hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
data, g762_groups);
- if (IS_ERR(data->hwmon_dev)) {
- ret = PTR_ERR(data->hwmon_dev);
- goto clock_dis;
- }
-
- return 0;
-
- clock_dis:
- g762_of_clock_disable(client);
-
- return ret;
-}
-
-static int g762_remove(struct i2c_client *client)
-{
- struct g762_data *data = i2c_get_clientdata(client);
-
- hwmon_device_unregister(data->hwmon_dev);
- g762_of_clock_disable(client);
-
- return 0;
+ return PTR_ERR_OR_ZERO(hwmon_dev);
}
static struct i2c_driver g762_driver = {
@@ -1117,7 +1093,6 @@ static struct i2c_driver g762_driver = {
.of_match_table = of_match_ptr(g762_dt_match),
},
.probe = g762_probe,
- .remove = g762_remove,
.id_table = g762_id,
};
diff --git a/drivers/hwmon/lm92.c b/drivers/hwmon/lm92.c
index 2a91974a10bb..d40fe5122e94 100644
--- a/drivers/hwmon/lm92.c
+++ b/drivers/hwmon/lm92.c
@@ -52,6 +52,7 @@
*/
static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
I2C_CLIENT_END };
+enum chips { lm92, max6635 };
/* The LM92 registers */
#define LM92_REG_CONFIG 0x01 /* 8-bit, RW */
@@ -259,62 +260,6 @@ static void lm92_init_client(struct i2c_client *client)
config & 0xFE);
}
-/*
- * The MAX6635 has no identification register, so we have to use tricks
- * to identify it reliably. This is somewhat slow.
- * Note that we do NOT rely on the 2 MSB of the configuration register
- * always reading 0, as suggested by the datasheet, because it was once
- * reported not to be true.
- */
-static int max6635_check(struct i2c_client *client)
-{
- u16 temp_low, temp_high, temp_hyst, temp_crit;
- u8 conf;
- int i;
-
- /*
- * No manufacturer ID register, so a read from this address will
- * always return the last read value.
- */
- temp_low = i2c_smbus_read_word_data(client, LM92_REG_TEMP_LOW);
- if (i2c_smbus_read_word_data(client, LM92_REG_MAN_ID) != temp_low)
- return 0;
- temp_high = i2c_smbus_read_word_data(client, LM92_REG_TEMP_HIGH);
- if (i2c_smbus_read_word_data(client, LM92_REG_MAN_ID) != temp_high)
- return 0;
-
- /* Limits are stored as integer values (signed, 9-bit). */
- if ((temp_low & 0x7f00) || (temp_high & 0x7f00))
- return 0;
- temp_hyst = i2c_smbus_read_word_data(client, LM92_REG_TEMP_HYST);
- temp_crit = i2c_smbus_read_word_data(client, LM92_REG_TEMP_CRIT);
- if ((temp_hyst & 0x7f00) || (temp_crit & 0x7f00))
- return 0;
-
- /*
- * Registers addresses were found to cycle over 16-byte boundaries.
- * We don't test all registers with all offsets so as to save some
- * reads and time, but this should still be sufficient to dismiss
- * non-MAX6635 chips.
- */
- conf = i2c_smbus_read_byte_data(client, LM92_REG_CONFIG);
- for (i = 16; i < 96; i *= 2) {
- if (temp_hyst != i2c_smbus_read_word_data(client,
- LM92_REG_TEMP_HYST + i - 16)
- || temp_crit != i2c_smbus_read_word_data(client,
- LM92_REG_TEMP_CRIT + i)
- || temp_low != i2c_smbus_read_word_data(client,
- LM92_REG_TEMP_LOW + i + 16)
- || temp_high != i2c_smbus_read_word_data(client,
- LM92_REG_TEMP_HIGH + i + 32)
- || conf != i2c_smbus_read_byte_data(client,
- LM92_REG_CONFIG + i))
- return 0;
- }
-
- return 1;
-}
-
static struct attribute *lm92_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_crit.dev_attr.attr,
@@ -348,8 +293,6 @@ static int lm92_detect(struct i2c_client *new_client,
if ((config & 0xe0) == 0x00 && man_id == 0x0180)
pr_info("lm92: Found National Semiconductor LM92 chip\n");
- else if (max6635_check(new_client))
- pr_info("lm92: Found Maxim MAX6635 chip\n");
else
return -ENODEV;
@@ -387,8 +330,8 @@ static int lm92_probe(struct i2c_client *new_client,
*/
static const struct i2c_device_id lm92_id[] = {
- { "lm92", 0 },
- /* max6635 could be added here */
+ { "lm92", lm92 },
+ { "max6635", max6635 },
{ }
};
MODULE_DEVICE_TABLE(i2c, lm92_id);
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index c219e43b8f02..aebce560bfaf 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -41,7 +41,7 @@
* nct6792d 15 6 6 2+6 0xc910 0xc1 0x5ca3
* nct6793d 15 6 6 2+6 0xd120 0xc1 0x5ca3
* nct6795d 14 6 6 2+6 0xd350 0xc1 0x5ca3
- *
+ * nct6796d 14 7 7 2+6 0xd420 0xc1 0x5ca3
*
* #temp lists the number of monitored temperature sources (first value) plus
* the number of directly connectable temperature sensors (second value).
@@ -68,7 +68,7 @@
#define USE_ALTERNATE
enum kinds { nct6106, nct6775, nct6776, nct6779, nct6791, nct6792, nct6793,
- nct6795 };
+ nct6795, nct6796 };
/* used to set data->name = nct6775_device_names[data->sio_kind] */
static const char * const nct6775_device_names[] = {
@@ -80,6 +80,7 @@ static const char * const nct6775_device_names[] = {
"nct6792",
"nct6793",
"nct6795",
+ "nct6796",
};
static const char * const nct6775_sio_names[] __initconst = {
@@ -91,6 +92,7 @@ static const char * const nct6775_sio_names[] __initconst = {
"NCT6792D",
"NCT6793D",
"NCT6795D",
+ "NCT6796D",
};
static unsigned short force_id;
@@ -125,6 +127,7 @@ MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
#define SIO_NCT6792_ID 0xc910
#define SIO_NCT6793_ID 0xd120
#define SIO_NCT6795_ID 0xd350
+#define SIO_NCT6796_ID 0xd420
#define SIO_ID_MASK 0xFFF0
enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
@@ -201,7 +204,7 @@ superio_exit(int ioreg)
#define NUM_REG_ALARM 7 /* Max number of alarm registers */
#define NUM_REG_BEEP 5 /* Max number of beep registers */
-#define NUM_FAN 6
+#define NUM_FAN 7
#define TEMP_SOURCE_VIRTUAL 0x1f
@@ -272,26 +275,26 @@ static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
/* Advanced Fan control, some values are common for all fans */
static const u16 NCT6775_REG_TARGET[] = {
- 0x101, 0x201, 0x301, 0x801, 0x901, 0xa01 };
+ 0x101, 0x201, 0x301, 0x801, 0x901, 0xa01, 0xb01 };
static const u16 NCT6775_REG_FAN_MODE[] = {
- 0x102, 0x202, 0x302, 0x802, 0x902, 0xa02 };
+ 0x102, 0x202, 0x302, 0x802, 0x902, 0xa02, 0xb02 };
static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = {
- 0x103, 0x203, 0x303, 0x803, 0x903, 0xa03 };
+ 0x103, 0x203, 0x303, 0x803, 0x903, 0xa03, 0xb03 };
static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = {
- 0x104, 0x204, 0x304, 0x804, 0x904, 0xa04 };
+ 0x104, 0x204, 0x304, 0x804, 0x904, 0xa04, 0xb04 };
static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = {
- 0x105, 0x205, 0x305, 0x805, 0x905, 0xa05 };
+ 0x105, 0x205, 0x305, 0x805, 0x905, 0xa05, 0xb05 };
static const u16 NCT6775_REG_FAN_START_OUTPUT[] = {
- 0x106, 0x206, 0x306, 0x806, 0x906, 0xa06 };
+ 0x106, 0x206, 0x306, 0x806, 0x906, 0xa06, 0xb06 };
static const u16 NCT6775_REG_FAN_MAX_OUTPUT[] = { 0x10a, 0x20a, 0x30a };
static const u16 NCT6775_REG_FAN_STEP_OUTPUT[] = { 0x10b, 0x20b, 0x30b };
static const u16 NCT6775_REG_FAN_STOP_TIME[] = {
- 0x107, 0x207, 0x307, 0x807, 0x907, 0xa07 };
+ 0x107, 0x207, 0x307, 0x807, 0x907, 0xa07, 0xb07 };
static const u16 NCT6775_REG_PWM[] = {
- 0x109, 0x209, 0x309, 0x809, 0x909, 0xa09 };
+ 0x109, 0x209, 0x309, 0x809, 0x909, 0xa09, 0xb09 };
static const u16 NCT6775_REG_PWM_READ[] = {
- 0x01, 0x03, 0x11, 0x13, 0x15, 0xa09 };
+ 0x01, 0x03, 0x11, 0x13, 0x15, 0xa09, 0xb09 };
static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 };
static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d };
@@ -314,7 +317,7 @@ static const u16 NCT6775_REG_TEMP_SOURCE[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
0x621, 0x622, 0x623, 0x624, 0x625, 0x626 };
static const u16 NCT6775_REG_TEMP_SEL[] = {
- 0x100, 0x200, 0x300, 0x800, 0x900, 0xa00 };
+ 0x100, 0x200, 0x300, 0x800, 0x900, 0xa00, 0xb00 };
static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[] = {
0x139, 0x239, 0x339, 0x839, 0x939, 0xa39 };
@@ -330,9 +333,9 @@ static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[] = {
static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 };
static const u16 NCT6775_REG_AUTO_TEMP[] = {
- 0x121, 0x221, 0x321, 0x821, 0x921, 0xa21 };
+ 0x121, 0x221, 0x321, 0x821, 0x921, 0xa21, 0xb21 };
static const u16 NCT6775_REG_AUTO_PWM[] = {
- 0x127, 0x227, 0x327, 0x827, 0x927, 0xa27 };
+ 0x127, 0x227, 0x327, 0x827, 0x927, 0xa27, 0xb27 };
#define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p))
#define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p))
@@ -340,9 +343,9 @@ static const u16 NCT6775_REG_AUTO_PWM[] = {
static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 };
static const u16 NCT6775_REG_CRITICAL_TEMP[] = {
- 0x135, 0x235, 0x335, 0x835, 0x935, 0xa35 };
+ 0x135, 0x235, 0x335, 0x835, 0x935, 0xa35, 0xb35 };
static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = {
- 0x138, 0x238, 0x338, 0x838, 0x938, 0xa38 };
+ 0x138, 0x238, 0x338, 0x838, 0x938, 0xa38, 0xb38 };
static const char *const nct6775_temp_label[] = {
"",
@@ -414,13 +417,15 @@ static const s8 NCT6776_BEEP_BITS[] = {
30, 31 }; /* intrusion0, intrusion1 */
static const u16 NCT6776_REG_TOLERANCE_H[] = {
- 0x10c, 0x20c, 0x30c, 0x80c, 0x90c, 0xa0c };
+ 0x10c, 0x20c, 0x30c, 0x80c, 0x90c, 0xa0c, 0xb0c };
static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0, 0, 0, 0 };
static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0, 0, 0, 0 };
-static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642 };
-static const u16 NCT6776_REG_FAN_PULSES[] = { 0x644, 0x645, 0x646, 0, 0 };
+static const u16 NCT6776_REG_FAN_MIN[] = {
+ 0x63a, 0x63c, 0x63e, 0x640, 0x642, 0x64a, 0x64c };
+static const u16 NCT6776_REG_FAN_PULSES[] = {
+ 0x644, 0x645, 0x646, 0x647, 0x648, 0x649, 0 };
static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[] = {
0x13e, 0x23e, 0x33e, 0x83e, 0x93e, 0xa3e };
@@ -495,15 +500,15 @@ static const s8 NCT6779_BEEP_BITS[] = {
30, 31 }; /* intrusion0, intrusion1 */
static const u16 NCT6779_REG_FAN[] = {
- 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8, 0x4ba };
+ 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8, 0x4ba, 0x660 };
static const u16 NCT6779_REG_FAN_PULSES[] = {
- 0x644, 0x645, 0x646, 0x647, 0x648, 0x649 };
+ 0x644, 0x645, 0x646, 0x647, 0x648, 0x649, 0 };
static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = {
- 0x136, 0x236, 0x336, 0x836, 0x936, 0xa36 };
+ 0x136, 0x236, 0x336, 0x836, 0x936, 0xa36, 0xb36 };
#define NCT6779_CRITICAL_PWM_ENABLE_MASK 0x01
static const u16 NCT6779_REG_CRITICAL_PWM[] = {
- 0x137, 0x237, 0x337, 0x837, 0x937, 0xa37 };
+ 0x137, 0x237, 0x337, 0x837, 0x937, 0xa37, 0xb37 };
static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
static const u16 NCT6779_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b };
@@ -570,12 +575,12 @@ static const u16 NCT6779_REG_TEMP_CRIT[32] = {
#define NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE 0x28
-static const u16 NCT6791_REG_WEIGHT_TEMP_SEL[6] = { 0, 0x239 };
-static const u16 NCT6791_REG_WEIGHT_TEMP_STEP[6] = { 0, 0x23a };
-static const u16 NCT6791_REG_WEIGHT_TEMP_STEP_TOL[6] = { 0, 0x23b };
-static const u16 NCT6791_REG_WEIGHT_DUTY_STEP[6] = { 0, 0x23c };
-static const u16 NCT6791_REG_WEIGHT_TEMP_BASE[6] = { 0, 0x23d };
-static const u16 NCT6791_REG_WEIGHT_DUTY_BASE[6] = { 0, 0x23e };
+static const u16 NCT6791_REG_WEIGHT_TEMP_SEL[NUM_FAN] = { 0, 0x239 };
+static const u16 NCT6791_REG_WEIGHT_TEMP_STEP[NUM_FAN] = { 0, 0x23a };
+static const u16 NCT6791_REG_WEIGHT_TEMP_STEP_TOL[NUM_FAN] = { 0, 0x23b };
+static const u16 NCT6791_REG_WEIGHT_DUTY_STEP[NUM_FAN] = { 0, 0x23c };
+static const u16 NCT6791_REG_WEIGHT_TEMP_BASE[NUM_FAN] = { 0, 0x23d };
+static const u16 NCT6791_REG_WEIGHT_DUTY_BASE[NUM_FAN] = { 0, 0x23e };
static const u16 NCT6791_REG_ALARM[NUM_REG_ALARM] = {
0x459, 0x45A, 0x45B, 0x568, 0x45D };
@@ -707,6 +712,43 @@ static const char *const nct6795_temp_label[] = {
#define NCT6795_TEMP_MASK 0xbfffff7e
+static const char *const nct6796_temp_label[] = {
+ "",
+ "SYSTIN",
+ "CPUTIN",
+ "AUXTIN0",
+ "AUXTIN1",
+ "AUXTIN2",
+ "AUXTIN3",
+ "AUXTIN4",
+ "SMBUSMASTER 0",
+ "SMBUSMASTER 1",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "PECI Agent 0",
+ "PECI Agent 1",
+ "PCH_CHIP_CPU_MAX_TEMP",
+ "PCH_CHIP_TEMP",
+ "PCH_CPU_TEMP",
+ "PCH_MCH_TEMP",
+ "PCH_DIM0_TEMP",
+ "PCH_DIM1_TEMP",
+ "PCH_DIM2_TEMP",
+ "PCH_DIM3_TEMP",
+ "BYTE_TEMP0",
+ "BYTE_TEMP1",
+ "PECI Agent 0 Calibration",
+ "PECI Agent 1 Calibration",
+ "",
+ "Virtual_TEMP"
+};
+
+#define NCT6796_TEMP_MASK 0xbfff03fe
+
/* NCT6102D/NCT6106D specific data */
#define NCT6106_REG_VBAT 0x318
@@ -1231,11 +1273,13 @@ static bool is_word_sized(struct nct6775_data *data, u16 reg)
case nct6792:
case nct6793:
case nct6795:
+ case nct6796:
return reg == 0x150 || reg == 0x153 || reg == 0x155 ||
((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x0b) ||
reg == 0x402 ||
reg == 0x63a || reg == 0x63c || reg == 0x63e ||
- reg == 0x640 || reg == 0x642 ||
+ reg == 0x640 || reg == 0x642 || reg == 0x64a ||
+ reg == 0x64c || reg == 0x660 ||
reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 ||
reg == 0x7b || reg == 0x7d;
}
@@ -1469,7 +1513,7 @@ static void nct6775_update_pwm(struct device *dev)
duty_is_dc = data->REG_PWM_MODE[i] &&
(nct6775_read_value(data, data->REG_PWM_MODE[i])
& data->PWM_MODE_MASK[i]);
- data->pwm_mode[i] = duty_is_dc;
+ data->pwm_mode[i] = !duty_is_dc;
fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]);
for (j = 0; j < ARRAY_SIZE(data->REG_PWM); j++) {
@@ -1584,6 +1628,7 @@ static void nct6775_update_pwm_limits(struct device *dev)
case nct6792:
case nct6793:
case nct6795:
+ case nct6796:
reg = nct6775_read_value(data,
data->REG_CRITICAL_PWM_ENABLE[i]);
if (reg & data->CRITICAL_PWM_ENABLE_MASK)
@@ -2092,6 +2137,8 @@ static umode_t nct6775_fan_is_visible(struct kobject *kobj,
return 0;
if (nr == 2 && data->BEEP_BITS[FAN_ALARM_BASE + fan] == -1)
return 0;
+ if (nr == 3 && !data->REG_FAN_PULSES[fan])
+ return 0;
if (nr == 4 && !(data->has_fan_min & BIT(fan)))
return 0;
if (nr == 5 && data->kind != nct6775)
@@ -2350,7 +2397,7 @@ show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
struct nct6775_data *data = nct6775_update_device(dev);
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
- return sprintf(buf, "%d\n", !data->pwm_mode[sattr->index]);
+ return sprintf(buf, "%d\n", data->pwm_mode[sattr->index]);
}
static ssize_t
@@ -2371,9 +2418,9 @@ store_pwm_mode(struct device *dev, struct device_attribute *attr,
if (val > 1)
return -EINVAL;
- /* Setting DC mode is not supported for all chips/channels */
+ /* Setting DC mode (0) is not supported for all chips/channels */
if (data->REG_PWM_MODE[nr] == 0) {
- if (val)
+ if (!val)
return -EINVAL;
return count;
}
@@ -2382,7 +2429,7 @@ store_pwm_mode(struct device *dev, struct device_attribute *attr,
data->pwm_mode[nr] = val;
reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]);
reg &= ~data->PWM_MODE_MASK[nr];
- if (val)
+ if (!val)
reg |= data->PWM_MODE_MASK[nr];
nct6775_write_value(data, data->REG_PWM_MODE[nr], reg);
mutex_unlock(&data->update_lock);
@@ -3004,6 +3051,7 @@ store_auto_pwm(struct device *dev, struct device_attribute *attr,
case nct6792:
case nct6793:
case nct6795:
+ case nct6796:
nct6775_write_value(data, data->REG_CRITICAL_PWM[nr],
val);
reg = nct6775_read_value(data,
@@ -3358,8 +3406,10 @@ static inline void nct6775_init_device(struct nct6775_data *data)
static void
nct6775_check_fan_inputs(struct nct6775_data *data)
{
- bool fan3pin, fan4pin, fan4min, fan5pin, fan6pin;
- bool pwm3pin, pwm4pin, pwm5pin, pwm6pin;
+ bool fan3pin = false, fan4pin = false, fan4min = false;
+ bool fan5pin = false, fan6pin = false, fan7pin = false;
+ bool pwm3pin = false, pwm4pin = false, pwm5pin = false;
+ bool pwm6pin = false, pwm7pin = false;
int sioreg = data->sioreg;
int regval;
@@ -3376,12 +3426,6 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
/* On NCT6775, fan4 shares pins with the fdc interface */
fan4pin = !(superio_inb(sioreg, 0x2A) & 0x80);
- fan4min = false;
- fan5pin = false;
- fan6pin = false;
- pwm4pin = false;
- pwm5pin = false;
- pwm6pin = false;
} else if (data->kind == nct6776) {
bool gpok = superio_inb(sioreg, 0x27) & 0x80;
const char *board_vendor, *board_name;
@@ -3421,25 +3465,15 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
fan5pin = superio_inb(sioreg, 0x1C) & 0x02;
fan4min = fan4pin;
- fan6pin = false;
pwm3pin = fan3pin;
- pwm4pin = false;
- pwm5pin = false;
- pwm6pin = false;
} else if (data->kind == nct6106) {
regval = superio_inb(sioreg, 0x24);
fan3pin = !(regval & 0x80);
pwm3pin = regval & 0x08;
-
- fan4pin = false;
- fan4min = false;
- fan5pin = false;
- fan6pin = false;
- pwm4pin = false;
- pwm5pin = false;
- pwm6pin = false;
- } else { /* NCT6779D, NCT6791D, NCT6792D, NCT6793D, or NCT6795D */
- int regval_1b, regval_2a, regval_eb;
+ } else {
+ /* NCT6779D, NCT6791D, NCT6792D, NCT6793D, NCT6795D, NCT6796D */
+ int regval_1b, regval_2a, regval_2f;
+ bool dsw_en;
regval = superio_inb(sioreg, 0x1c);
@@ -3460,31 +3494,60 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
break;
case nct6793:
case nct6795:
+ case nct6796:
regval_1b = superio_inb(sioreg, 0x1b);
regval_2a = superio_inb(sioreg, 0x2a);
+ regval_2f = superio_inb(sioreg, 0x2f);
+ dsw_en = regval_2f & BIT(3);
if (!pwm5pin)
pwm5pin = regval & BIT(7);
- fan6pin = regval & BIT(1);
- pwm6pin = regval & BIT(0);
+
if (!fan5pin)
fan5pin = regval_1b & BIT(5);
superio_select(sioreg, NCT6775_LD_12);
- regval_eb = superio_inb(sioreg, 0xeb);
- if (!fan5pin)
- fan5pin = regval_eb & BIT(5);
- if (!pwm5pin)
- pwm5pin = (regval_eb & BIT(4)) &&
- !(regval_2a & BIT(0));
- if (!fan6pin)
- fan6pin = regval_eb & BIT(3);
- if (!pwm6pin)
- pwm6pin = regval_eb & BIT(2);
+ if (data->kind != nct6796) {
+ int regval_eb = superio_inb(sioreg, 0xeb);
+
+ if (!dsw_en) {
+ fan6pin = regval & BIT(1);
+ pwm6pin = regval & BIT(0);
+ }
+
+ if (!fan5pin)
+ fan5pin = regval_eb & BIT(5);
+ if (!pwm5pin)
+ pwm5pin = (regval_eb & BIT(4)) &&
+ !(regval_2a & BIT(0));
+ if (!fan6pin)
+ fan6pin = regval_eb & BIT(3);
+ if (!pwm6pin)
+ pwm6pin = regval_eb & BIT(2);
+ }
+
+ if (data->kind == nct6795 || data->kind == nct6796) {
+ int regval_ed = superio_inb(sioreg, 0xed);
+
+ if (!fan6pin)
+ fan6pin = (regval_2a & BIT(4)) &&
+ (!dsw_en ||
+ (dsw_en && (regval_ed & BIT(4))));
+ if (!pwm6pin)
+ pwm6pin = (regval_2a & BIT(3)) &&
+ (regval_ed & BIT(2));
+ }
+
+ if (data->kind == nct6796) {
+ int regval_1d = superio_inb(sioreg, 0x1d);
+ int regval_2b = superio_inb(sioreg, 0x2b);
+
+ fan7pin = !(regval_2b & BIT(2));
+ pwm7pin = !(regval_1d & (BIT(2) | BIT(3)));
+ }
+
break;
default: /* NCT6779D */
- fan6pin = false;
- pwm6pin = false;
break;
}
@@ -3493,11 +3556,11 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
/* fan 1 and 2 (0x03) are always present */
data->has_fan = 0x03 | (fan3pin << 2) | (fan4pin << 3) |
- (fan5pin << 4) | (fan6pin << 5);
+ (fan5pin << 4) | (fan6pin << 5) | (fan7pin << 6);
data->has_fan_min = 0x03 | (fan3pin << 2) | (fan4min << 3) |
- (fan5pin << 4);
+ (fan5pin << 4) | (fan6pin << 5) | (fan7pin << 6);
data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) |
- (pwm5pin << 4) | (pwm6pin << 5);
+ (pwm5pin << 4) | (pwm6pin << 5) | (pwm7pin << 6);
}
static void add_temp_sensors(struct nct6775_data *data, const u16 *regp,
@@ -3856,8 +3919,9 @@ static int nct6775_probe(struct platform_device *pdev)
case nct6792:
case nct6793:
case nct6795:
+ case nct6796:
data->in_num = 15;
- data->pwm_num = 6;
+ data->pwm_num = (data->kind == nct6796) ? 7 : 6;
data->auto_pwm_num = 4;
data->has_fan_div = false;
data->temp_fixed_num = 6;
@@ -3891,6 +3955,10 @@ static int nct6775_probe(struct platform_device *pdev)
data->temp_label = nct6795_temp_label;
data->temp_mask = NCT6795_TEMP_MASK;
break;
+ case nct6796:
+ data->temp_label = nct6796_temp_label;
+ data->temp_mask = NCT6796_TEMP_MASK;
+ break;
}
data->REG_CONFIG = NCT6775_REG_CONFIG;
@@ -4159,6 +4227,7 @@ static int nct6775_probe(struct platform_device *pdev)
case nct6792:
case nct6793:
case nct6795:
+ case nct6796:
break;
}
@@ -4193,6 +4262,7 @@ static int nct6775_probe(struct platform_device *pdev)
case nct6792:
case nct6793:
case nct6795:
+ case nct6796:
tmp |= 0x7e;
break;
}
@@ -4291,7 +4361,8 @@ static int __maybe_unused nct6775_resume(struct device *dev)
superio_outb(sioreg, SIO_REG_ENABLE, data->sio_reg_enable);
if (data->kind == nct6791 || data->kind == nct6792 ||
- data->kind == nct6793 || data->kind == nct6795)
+ data->kind == nct6793 || data->kind == nct6795 ||
+ data->kind == nct6796)
nct6791_enable_io_mapping(sioreg);
superio_exit(sioreg);
@@ -4391,6 +4462,9 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
case SIO_NCT6795_ID:
sio_data->kind = nct6795;
break;
+ case SIO_NCT6796_ID:
+ sio_data->kind = nct6796;
+ break;
default:
if (val != 0xffff)
pr_debug("unsupported chip ID: 0x%04x\n", val);
@@ -4417,7 +4491,8 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
}
if (sio_data->kind == nct6791 || sio_data->kind == nct6792 ||
- sio_data->kind == nct6793 || sio_data->kind == nct6795)
+ sio_data->kind == nct6793 || sio_data->kind == nct6795 ||
+ sio_data->kind == nct6796)
nct6791_enable_io_mapping(sioaddr);
superio_exit(sioaddr);
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 6e4298e99222..e71aec69e76e 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -31,8 +31,8 @@ config SENSORS_ADM1275
default n
help
If you say yes here you get hardware monitoring support for Analog
- Devices ADM1075, ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294
- Hot-Swap Controller and Digital Power Monitors.
+ Devices ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1293,
+ and ADM1294 Hot-Swap Controller and Digital Power Monitors.
This driver can also be built as a module. If so, the module will
be called adm1275.
diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c
index 00d6995af4c2..13600fa79e7f 100644
--- a/drivers/hwmon/pmbus/adm1275.c
+++ b/drivers/hwmon/pmbus/adm1275.c
@@ -3,6 +3,7 @@
* and Digital Power Monitor
*
* Copyright (c) 2011 Ericsson AB.
+ * Copyright (c) 2018 Guenter Roeck
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -24,7 +25,7 @@
#include <linux/bitops.h>
#include "pmbus.h"
-enum chips { adm1075, adm1275, adm1276, adm1278, adm1293, adm1294 };
+enum chips { adm1075, adm1272, adm1275, adm1276, adm1278, adm1293, adm1294 };
#define ADM1275_MFR_STATUS_IOUT_WARN2 BIT(0)
#define ADM1293_MFR_STATUS_VAUX_UV_WARN BIT(5)
@@ -41,6 +42,8 @@ enum chips { adm1075, adm1275, adm1276, adm1278, adm1293, adm1294 };
#define ADM1075_IRANGE_25 BIT(3)
#define ADM1075_IRANGE_MASK (BIT(3) | BIT(4))
+#define ADM1272_IRANGE BIT(0)
+
#define ADM1278_TEMP1_EN BIT(3)
#define ADM1278_VIN_EN BIT(2)
#define ADM1278_VOUT_EN BIT(1)
@@ -105,6 +108,19 @@ static const struct coefficients adm1075_coefficients[] = {
[4] = { 4279, 0, -1 }, /* power, irange50 */
};
+static const struct coefficients adm1272_coefficients[] = {
+ [0] = { 6770, 0, -2 }, /* voltage, vrange 60V */
+ [1] = { 4062, 0, -2 }, /* voltage, vrange 100V */
+ [2] = { 1326, 20480, -1 }, /* current, vsense range 15mV */
+ [3] = { 663, 20480, -1 }, /* current, vsense range 30mV */
+ [4] = { 3512, 0, -2 }, /* power, vrange 60V, irange 15mV */
+ [5] = { 21071, 0, -3 }, /* power, vrange 100V, irange 15mV */
+ [6] = { 17561, 0, -3 }, /* power, vrange 60V, irange 30mV */
+ [7] = { 10535, 0, -3 }, /* power, vrange 100V, irange 30mV */
+ [8] = { 42, 31871, -1 }, /* temperature */
+
+};
+
static const struct coefficients adm1275_coefficients[] = {
[0] = { 19199, 0, -2 }, /* voltage, vrange set */
[1] = { 6720, 0, -1 }, /* voltage, vrange not set */
@@ -154,7 +170,7 @@ static int adm1275_read_word_data(struct i2c_client *client, int page, int reg)
const struct adm1275_data *data = to_adm1275_data(info);
int ret = 0;
- if (page)
+ if (page > 0)
return -ENXIO;
switch (reg) {
@@ -240,7 +256,7 @@ static int adm1275_write_word_data(struct i2c_client *client, int page, int reg,
const struct adm1275_data *data = to_adm1275_data(info);
int ret;
- if (page)
+ if (page > 0)
return -ENXIO;
switch (reg) {
@@ -335,6 +351,7 @@ static int adm1275_read_byte_data(struct i2c_client *client, int page, int reg)
static const struct i2c_device_id adm1275_id[] = {
{ "adm1075", adm1075 },
+ { "adm1272", adm1272 },
{ "adm1275", adm1275 },
{ "adm1276", adm1276 },
{ "adm1278", adm1278 },
@@ -451,6 +468,54 @@ static int adm1275_probe(struct i2c_client *client,
info->func[0] |=
PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
break;
+ case adm1272:
+ data->have_vout = true;
+ data->have_pin_max = true;
+ data->have_temp_max = true;
+
+ coefficients = adm1272_coefficients;
+ vindex = (config & ADM1275_VRANGE) ? 1 : 0;
+ cindex = (config & ADM1272_IRANGE) ? 3 : 2;
+ /* pindex depends on the combination of the above */
+ switch (config & (ADM1275_VRANGE | ADM1272_IRANGE)) {
+ case 0:
+ default:
+ pindex = 4;
+ break;
+ case ADM1275_VRANGE:
+ pindex = 5;
+ break;
+ case ADM1272_IRANGE:
+ pindex = 6;
+ break;
+ case ADM1275_VRANGE | ADM1272_IRANGE:
+ pindex = 7;
+ break;
+ }
+ tindex = 8;
+
+ info->func[0] |= PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT |
+ PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
+
+ /* Enable VOUT if not enabled (it is disabled by default) */
+ if (!(config & ADM1278_VOUT_EN)) {
+ config |= ADM1278_VOUT_EN;
+ ret = i2c_smbus_write_byte_data(client,
+ ADM1275_PMON_CONFIG,
+ config);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "Failed to enable VOUT monitoring\n");
+ return -ENODEV;
+ }
+ }
+
+ if (config & ADM1278_TEMP1_EN)
+ info->func[0] |=
+ PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
+ if (config & ADM1278_VIN_EN)
+ info->func[0] |= PMBUS_HAVE_VIN;
+ break;
case adm1275:
if (device_config & ADM1275_IOUT_WARN2_SELECT)
data->have_oc_fault = true;
diff --git a/drivers/hwmon/pmbus/max8688.c b/drivers/hwmon/pmbus/max8688.c
index dd4883a19045..e951f9b87abb 100644
--- a/drivers/hwmon/pmbus/max8688.c
+++ b/drivers/hwmon/pmbus/max8688.c
@@ -45,7 +45,7 @@ static int max8688_read_word_data(struct i2c_client *client, int page, int reg)
{
int ret;
- if (page)
+ if (page > 0)
return -ENXIO;
switch (reg) {
diff --git a/drivers/hwmon/pmbus/ucd9000.c b/drivers/hwmon/pmbus/ucd9000.c
index b74dbeca2e8d..70cecb06f93c 100644
--- a/drivers/hwmon/pmbus/ucd9000.c
+++ b/drivers/hwmon/pmbus/ucd9000.c
@@ -19,6 +19,7 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <linux/debugfs.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_device.h>
@@ -27,6 +28,8 @@
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/pmbus.h>
+#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
#include "pmbus.h"
enum chips { ucd9000, ucd90120, ucd90124, ucd90160, ucd9090, ucd90910 };
@@ -35,8 +38,19 @@ enum chips { ucd9000, ucd90120, ucd90124, ucd90160, ucd9090, ucd90910 };
#define UCD9000_NUM_PAGES 0xd6
#define UCD9000_FAN_CONFIG_INDEX 0xe7
#define UCD9000_FAN_CONFIG 0xe8
+#define UCD9000_MFR_STATUS 0xf3
+#define UCD9000_GPIO_SELECT 0xfa
+#define UCD9000_GPIO_CONFIG 0xfb
#define UCD9000_DEVICE_ID 0xfd
+/* GPIO CONFIG bits */
+#define UCD9000_GPIO_CONFIG_ENABLE BIT(0)
+#define UCD9000_GPIO_CONFIG_OUT_ENABLE BIT(1)
+#define UCD9000_GPIO_CONFIG_OUT_VALUE BIT(2)
+#define UCD9000_GPIO_CONFIG_STATUS BIT(3)
+#define UCD9000_GPIO_INPUT 0
+#define UCD9000_GPIO_OUTPUT 1
+
#define UCD9000_MON_TYPE(x) (((x) >> 5) & 0x07)
#define UCD9000_MON_PAGE(x) ((x) & 0x0f)
@@ -47,12 +61,29 @@ enum chips { ucd9000, ucd90120, ucd90124, ucd90160, ucd9090, ucd90910 };
#define UCD9000_NUM_FAN 4
+#define UCD9000_GPIO_NAME_LEN 16
+#define UCD9090_NUM_GPIOS 23
+#define UCD901XX_NUM_GPIOS 26
+#define UCD90910_NUM_GPIOS 26
+
+#define UCD9000_DEBUGFS_NAME_LEN 24
+#define UCD9000_GPI_COUNT 8
+
struct ucd9000_data {
u8 fan_data[UCD9000_NUM_FAN][I2C_SMBUS_BLOCK_MAX];
struct pmbus_driver_info info;
+#ifdef CONFIG_GPIOLIB
+ struct gpio_chip gpio;
+#endif
+ struct dentry *debugfs;
};
#define to_ucd9000_data(_info) container_of(_info, struct ucd9000_data, info)
+struct ucd9000_debugfs_entry {
+ struct i2c_client *client;
+ u8 index;
+};
+
static int ucd9000_get_fan_config(struct i2c_client *client, int fan)
{
int fan_config = 0;
@@ -149,6 +180,312 @@ static const struct of_device_id ucd9000_of_match[] = {
};
MODULE_DEVICE_TABLE(of, ucd9000_of_match);
+#ifdef CONFIG_GPIOLIB
+static int ucd9000_gpio_read_config(struct i2c_client *client,
+ unsigned int offset)
+{
+ int ret;
+
+ /* No page set required */
+ ret = i2c_smbus_write_byte_data(client, UCD9000_GPIO_SELECT, offset);
+ if (ret < 0)
+ return ret;
+
+ return i2c_smbus_read_byte_data(client, UCD9000_GPIO_CONFIG);
+}
+
+static int ucd9000_gpio_get(struct gpio_chip *gc, unsigned int offset)
+{
+ struct i2c_client *client = gpiochip_get_data(gc);
+ int ret;
+
+ ret = ucd9000_gpio_read_config(client, offset);
+ if (ret < 0)
+ return ret;
+
+ return !!(ret & UCD9000_GPIO_CONFIG_STATUS);
+}
+
+static void ucd9000_gpio_set(struct gpio_chip *gc, unsigned int offset,
+ int value)
+{
+ struct i2c_client *client = gpiochip_get_data(gc);
+ int ret;
+
+ ret = ucd9000_gpio_read_config(client, offset);
+ if (ret < 0) {
+ dev_dbg(&client->dev, "failed to read GPIO %d config: %d\n",
+ offset, ret);
+ return;
+ }
+
+ if (value) {
+ if (ret & UCD9000_GPIO_CONFIG_STATUS)
+ return;
+
+ ret |= UCD9000_GPIO_CONFIG_STATUS;
+ } else {
+ if (!(ret & UCD9000_GPIO_CONFIG_STATUS))
+ return;
+
+ ret &= ~UCD9000_GPIO_CONFIG_STATUS;
+ }
+
+ ret |= UCD9000_GPIO_CONFIG_ENABLE;
+
+ /* Page set not required */
+ ret = i2c_smbus_write_byte_data(client, UCD9000_GPIO_CONFIG, ret);
+ if (ret < 0) {
+ dev_dbg(&client->dev, "Failed to write GPIO %d config: %d\n",
+ offset, ret);
+ return;
+ }
+
+ ret &= ~UCD9000_GPIO_CONFIG_ENABLE;
+
+ ret = i2c_smbus_write_byte_data(client, UCD9000_GPIO_CONFIG, ret);
+ if (ret < 0)
+ dev_dbg(&client->dev, "Failed to write GPIO %d config: %d\n",
+ offset, ret);
+}
+
+static int ucd9000_gpio_get_direction(struct gpio_chip *gc,
+ unsigned int offset)
+{
+ struct i2c_client *client = gpiochip_get_data(gc);
+ int ret;
+
+ ret = ucd9000_gpio_read_config(client, offset);
+ if (ret < 0)
+ return ret;
+
+ return !(ret & UCD9000_GPIO_CONFIG_OUT_ENABLE);
+}
+
+static int ucd9000_gpio_set_direction(struct gpio_chip *gc,
+ unsigned int offset, bool direction_out,
+ int requested_out)
+{
+ struct i2c_client *client = gpiochip_get_data(gc);
+ int ret, config, out_val;
+
+ ret = ucd9000_gpio_read_config(client, offset);
+ if (ret < 0)
+ return ret;
+
+ if (direction_out) {
+ out_val = requested_out ? UCD9000_GPIO_CONFIG_OUT_VALUE : 0;
+
+ if (ret & UCD9000_GPIO_CONFIG_OUT_ENABLE) {
+ if ((ret & UCD9000_GPIO_CONFIG_OUT_VALUE) == out_val)
+ return 0;
+ } else {
+ ret |= UCD9000_GPIO_CONFIG_OUT_ENABLE;
+ }
+
+ if (out_val)
+ ret |= UCD9000_GPIO_CONFIG_OUT_VALUE;
+ else
+ ret &= ~UCD9000_GPIO_CONFIG_OUT_VALUE;
+
+ } else {
+ if (!(ret & UCD9000_GPIO_CONFIG_OUT_ENABLE))
+ return 0;
+
+ ret &= ~UCD9000_GPIO_CONFIG_OUT_ENABLE;
+ }
+
+ ret |= UCD9000_GPIO_CONFIG_ENABLE;
+ config = ret;
+
+ /* Page set not required */
+ ret = i2c_smbus_write_byte_data(client, UCD9000_GPIO_CONFIG, config);
+ if (ret < 0)
+ return ret;
+
+ config &= ~UCD9000_GPIO_CONFIG_ENABLE;
+
+ return i2c_smbus_write_byte_data(client, UCD9000_GPIO_CONFIG, config);
+}
+
+static int ucd9000_gpio_direction_input(struct gpio_chip *gc,
+ unsigned int offset)
+{
+ return ucd9000_gpio_set_direction(gc, offset, UCD9000_GPIO_INPUT, 0);
+}
+
+static int ucd9000_gpio_direction_output(struct gpio_chip *gc,
+ unsigned int offset, int val)
+{
+ return ucd9000_gpio_set_direction(gc, offset, UCD9000_GPIO_OUTPUT,
+ val);
+}
+
+static void ucd9000_probe_gpio(struct i2c_client *client,
+ const struct i2c_device_id *mid,
+ struct ucd9000_data *data)
+{
+ int rc;
+
+ switch (mid->driver_data) {
+ case ucd9090:
+ data->gpio.ngpio = UCD9090_NUM_GPIOS;
+ break;
+ case ucd90120:
+ case ucd90124:
+ case ucd90160:
+ data->gpio.ngpio = UCD901XX_NUM_GPIOS;
+ break;
+ case ucd90910:
+ data->gpio.ngpio = UCD90910_NUM_GPIOS;
+ break;
+ default:
+ return; /* GPIO support is optional. */
+ }
+
+ /*
+ * Pinmux support has not been added to the new gpio_chip.
+ * This support should be added when possible given the mux
+ * behavior of these IO devices.
+ */
+ data->gpio.label = client->name;
+ data->gpio.get_direction = ucd9000_gpio_get_direction;
+ data->gpio.direction_input = ucd9000_gpio_direction_input;
+ data->gpio.direction_output = ucd9000_gpio_direction_output;
+ data->gpio.get = ucd9000_gpio_get;
+ data->gpio.set = ucd9000_gpio_set;
+ data->gpio.can_sleep = true;
+ data->gpio.base = -1;
+ data->gpio.parent = &client->dev;
+
+ rc = devm_gpiochip_add_data(&client->dev, &data->gpio, client);
+ if (rc)
+ dev_warn(&client->dev, "Could not add gpiochip: %d\n", rc);
+}
+#else
+static void ucd9000_probe_gpio(struct i2c_client *client,
+ const struct i2c_device_id *mid,
+ struct ucd9000_data *data)
+{
+}
+#endif /* CONFIG_GPIOLIB */
+
+#ifdef CONFIG_DEBUG_FS
+static int ucd9000_get_mfr_status(struct i2c_client *client, u8 *buffer)
+{
+ int ret = pmbus_set_page(client, 0);
+
+ if (ret < 0)
+ return ret;
+
+ return i2c_smbus_read_block_data(client, UCD9000_MFR_STATUS, buffer);
+}
+
+static int ucd9000_debugfs_show_mfr_status_bit(void *data, u64 *val)
+{
+ struct ucd9000_debugfs_entry *entry = data;
+ struct i2c_client *client = entry->client;
+ u8 buffer[I2C_SMBUS_BLOCK_MAX];
+ int ret;
+
+ ret = ucd9000_get_mfr_status(client, buffer);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * Attribute only created for devices with gpi fault bits at bits
+ * 16-23, which is the second byte of the response.
+ */
+ *val = !!(buffer[1] & BIT(entry->index));
+
+ return 0;
+}
+DEFINE_DEBUGFS_ATTRIBUTE(ucd9000_debugfs_mfr_status_bit,
+ ucd9000_debugfs_show_mfr_status_bit, NULL, "%1lld\n");
+
+static ssize_t ucd9000_debugfs_read_mfr_status(struct file *file,
+ char __user *buf, size_t count,
+ loff_t *ppos)
+{
+ struct i2c_client *client = file->private_data;
+ u8 buffer[I2C_SMBUS_BLOCK_MAX];
+ char str[(I2C_SMBUS_BLOCK_MAX * 2) + 2];
+ char *res;
+ int rc;
+
+ rc = ucd9000_get_mfr_status(client, buffer);
+ if (rc < 0)
+ return rc;
+
+ res = bin2hex(str, buffer, min(rc, I2C_SMBUS_BLOCK_MAX));
+ *res++ = '\n';
+ *res = 0;
+
+ return simple_read_from_buffer(buf, count, ppos, str, res - str);
+}
+
+static const struct file_operations ucd9000_debugfs_show_mfr_status_fops = {
+ .llseek = noop_llseek,
+ .read = ucd9000_debugfs_read_mfr_status,
+ .open = simple_open,
+};
+
+static int ucd9000_init_debugfs(struct i2c_client *client,
+ const struct i2c_device_id *mid,
+ struct ucd9000_data *data)
+{
+ struct dentry *debugfs;
+ struct ucd9000_debugfs_entry *entries;
+ int i;
+ char name[UCD9000_DEBUGFS_NAME_LEN];
+
+ debugfs = pmbus_get_debugfs_dir(client);
+ if (!debugfs)
+ return -ENOENT;
+
+ data->debugfs = debugfs_create_dir(client->name, debugfs);
+ if (!data->debugfs)
+ return -ENOENT;
+
+ /*
+ * Of the chips this driver supports, only the UCD9090, UCD90160,
+ * and UCD90910 report GPI faults in their MFR_STATUS register, so only
+ * create the GPI fault debugfs attributes for those chips.
+ */
+ if (mid->driver_data == ucd9090 || mid->driver_data == ucd90160 ||
+ mid->driver_data == ucd90910) {
+ entries = devm_kzalloc(&client->dev,
+ sizeof(*entries) * UCD9000_GPI_COUNT,
+ GFP_KERNEL);
+ if (!entries)
+ return -ENOMEM;
+
+ for (i = 0; i < UCD9000_GPI_COUNT; i++) {
+ entries[i].client = client;
+ entries[i].index = i;
+ scnprintf(name, UCD9000_DEBUGFS_NAME_LEN,
+ "gpi%d_alarm", i + 1);
+ debugfs_create_file(name, 0444, data->debugfs,
+ &entries[i],
+ &ucd9000_debugfs_mfr_status_bit);
+ }
+ }
+
+ scnprintf(name, UCD9000_DEBUGFS_NAME_LEN, "mfr_status");
+ debugfs_create_file(name, 0444, data->debugfs, client,
+ &ucd9000_debugfs_show_mfr_status_fops);
+
+ return 0;
+}
+#else
+static int ucd9000_init_debugfs(struct i2c_client *client,
+ const struct i2c_device_id *mid,
+ struct ucd9000_data *data)
+{
+ return 0;
+}
+#endif /* CONFIG_DEBUG_FS */
+
static int ucd9000_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -263,7 +600,18 @@ static int ucd9000_probe(struct i2c_client *client,
| PMBUS_HAVE_FAN34 | PMBUS_HAVE_STATUS_FAN34;
}
- return pmbus_do_probe(client, mid, info);
+ ucd9000_probe_gpio(client, mid, data);
+
+ ret = pmbus_do_probe(client, mid, info);
+ if (ret)
+ return ret;
+
+ ret = ucd9000_init_debugfs(client, mid, data);
+ if (ret)
+ dev_warn(&client->dev, "Failed to register debugfs: %d\n",
+ ret);
+
+ return 0;
}
/* This is the driver that will be inserted */
diff --git a/drivers/hwmon/sht21.c b/drivers/hwmon/sht21.c
index 190e7b39ce32..2c7ba70921f5 100644
--- a/drivers/hwmon/sht21.c
+++ b/drivers/hwmon/sht21.c
@@ -16,8 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA
*
- * Data sheet available (5/2010) at
- * http://www.sensirion.com/en/pdf/product_information/Datasheet-humidity-sensor-SHT21.pdf
+ * Data sheet available at http://www.sensirion.com/file/datasheet_sht21
*/
#include <linux/module.h>
diff --git a/drivers/hwmon/via-cputemp.c b/drivers/hwmon/via-cputemp.c
index 07a0cb0a1f28..0e81f287d305 100644
--- a/drivers/hwmon/via-cputemp.c
+++ b/drivers/hwmon/via-cputemp.c
@@ -136,20 +136,24 @@ static int via_cputemp_probe(struct platform_device *pdev)
data->id = pdev->id;
data->name = "via_cputemp";
- switch (c->x86_model) {
- case 0xA:
- /* C7 A */
- case 0xD:
- /* C7 D */
- data->msr_temp = 0x1169;
- data->msr_vid = 0x198;
- break;
- case 0xF:
- /* Nano */
+ if (c->x86 == 7) {
data->msr_temp = 0x1423;
- break;
- default:
- return -ENODEV;
+ } else {
+ switch (c->x86_model) {
+ case 0xA:
+ /* C7 A */
+ case 0xD:
+ /* C7 D */
+ data->msr_temp = 0x1169;
+ data->msr_vid = 0x198;
+ break;
+ case 0xF:
+ /* Nano */
+ data->msr_temp = 0x1423;
+ break;
+ default:
+ return -ENODEV;
+ }
}
/* test if we can access the TEMPERATURE MSR */
@@ -283,6 +287,7 @@ static const struct x86_cpu_id __initconst cputemp_ids[] = {
{ X86_VENDOR_CENTAUR, 6, 0xa, }, /* C7 A */
{ X86_VENDOR_CENTAUR, 6, 0xd, }, /* C7 D */
{ X86_VENDOR_CENTAUR, 6, 0xf, }, /* Nano */
+ { X86_VENDOR_CENTAUR, 7, X86_MODEL_ANY, },
{}
};
MODULE_DEVICE_TABLE(x86cpu, cputemp_ids);