Drop digital thermometer and thermostat (DTT) drivers

This subsystem is quite old. It has been replaced with a driver-model
version (UCLASS_THERMAL). Boards are free to convert to that if required,
but here is a removal patch that could be applied in the meantime.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>

14 files changed, 0 insertions, 1301 deletions

diff --git a/drivers/Kconfig b/drivers/Kconfig
index a5f24d7..a736386 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -30,8 +30,6 @@ source "drivers/fpga/Kconfig"
 
 source "drivers/gpio/Kconfig"
 
-source "drivers/hwmon/Kconfig"
-
 source "drivers/i2c/Kconfig"
 
 source "drivers/input/Kconfig"
diff --git a/drivers/Makefile b/drivers/Makefile
index f16d7fd..058bccb 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -74,7 +74,6 @@ obj-$(CONFIG_CPU) += cpu/
 obj-y += crypto/
 obj-y += firmware/
 obj-$(CONFIG_FPGA) += fpga/
-obj-y += hwmon/
 obj-y += misc/
 obj-$(CONFIG_MMC) += mmc/
 obj-y += pcmcia/
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
deleted file mode 100644
index e69de29..0000000
--- a/drivers/hwmon/Kconfig
+++ /dev/null
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
deleted file mode 100644
index b4fb057..0000000
--- a/drivers/hwmon/Makefile
+++ /dev/null
@@ -1,22 +0,0 @@
-#
-# (C) Copyright 2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# (C) Copyright 2001
-# Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-
-#ccflags-y += -DDEBUG
-
-obj-$(CONFIG_DTT_ADM1021) += adm1021.o
-obj-$(CONFIG_DTT_ADT7460) += adt7460.o
-obj-$(CONFIG_DTT_DS1621) += ds1621.o
-obj-$(CONFIG_DTT_DS1722) += ds1722.o
-obj-$(CONFIG_DTT_DS1775) += ds1775.o
-obj-$(CONFIG_DTT_DS620) += ds620.o
-obj-$(CONFIG_DTT_LM63) += lm63.o
-obj-$(CONFIG_DTT_LM73) += lm73.o
-obj-$(CONFIG_DTT_LM75) += lm75.o
-obj-$(CONFIG_DTT_LM81) += lm81.o
diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c
deleted file mode 100644
index 99e942b..0000000
--- a/drivers/hwmon/adm1021.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * (C) Copyright 2003
- * Murray Jensen, CSIRO-MIT, Murray.Jensen@csiro.au
- *
- * based on dtt/lm75.c which is ...
- *
- * (C) Copyright 2001
- * Bill Hunter,  Wave 7 Optics, williamhunter@mediaone.net
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-/*
- * Analog Devices's ADM1021
- * "Low Cost Microprocessor System Temperature Monitor"
- */
-
-#include <common.h>
-
-#include <i2c.h>
-#include <dtt.h>
-
-#define DTT_READ_LOC_VALUE	0x00
-#define DTT_READ_REM_VALUE	0x01
-#define DTT_READ_STATUS		0x02
-#define DTT_READ_CONFIG		0x03
-#define DTT_READ_CONVRATE	0x04
-#define DTT_READ_LOC_HIGHLIM	0x05
-#define DTT_READ_LOC_LOWLIM	0x06
-#define DTT_READ_REM_HIGHLIM	0x07
-#define DTT_READ_REM_LOWLIM	0x08
-#define DTT_READ_DEVID		0xfe
-
-#define DTT_WRITE_CONFIG	0x09
-#define DTT_WRITE_CONVRATE	0x0a
-#define DTT_WRITE_LOC_HIGHLIM	0x0b
-#define DTT_WRITE_LOC_LOWLIM	0x0c
-#define DTT_WRITE_REM_HIGHLIM	0x0d
-#define DTT_WRITE_REM_LOWLIM	0x0e
-#define DTT_WRITE_ONESHOT	0x0f
-
-#define DTT_STATUS_BUSY		0x80	/* 1=ADC Converting */
-#define DTT_STATUS_LHIGH	0x40	/* 1=Local High Temp Limit Tripped */
-#define DTT_STATUS_LLOW		0x20	/* 1=Local Low Temp Limit Tripped */
-#define DTT_STATUS_RHIGH	0x10	/* 1=Remote High Temp Limit Tripped */
-#define DTT_STATUS_RLOW		0x08	/* 1=Remote Low Temp Limit Tripped */
-#define DTT_STATUS_OPEN		0x04	/* 1=Remote Sensor Open-Circuit */
-
-#define DTT_CONFIG_ALERT_MASKED	0x80	/* 0=ALERT Enabled, 1=ALERT Masked */
-#define DTT_CONFIG_STANDBY	0x40	/* 0=Run, 1=Standby */
-
-#define DTT_ADM1021_DEVID	0x41
-
-typedef
-	struct {
-		uint i2c_addr:7;	/* 7bit i2c chip address */
-		uint conv_rate:3;	/* conversion rate */
-		uint enable_alert:1;	/* enable alert output pin */
-		uint enable_local:1;	/* enable internal temp sensor */
-		uint max_local:8;	/* internal temp maximum */
-		uint min_local:8;	/* internal temp minimum */
-		uint enable_remote:1;	/* enable remote temp sensor */
-		uint max_remote:8;	/* remote temp maximum */
-		uint min_remote:8;	/* remote temp minimum */
-	}
-dtt_cfg_t;
-
-dtt_cfg_t dttcfg[] = CONFIG_SYS_DTT_ADM1021;
-
-int
-dtt_read (int sensor, int reg)
-{
-	dtt_cfg_t *dcp = &dttcfg[sensor >> 1];
-	uchar data;
-
-	if (i2c_read(dcp->i2c_addr, reg, 1, &data, 1) != 0)
-		return -1;
-
-	return (int)data;
-} /* dtt_read() */
-
-int
-dtt_write (int sensor, int reg, int val)
-{
-	dtt_cfg_t *dcp = &dttcfg[sensor >> 1];
-	uchar data;
-
-	data = (uchar)(val & 0xff);
-
-	if (i2c_write(dcp->i2c_addr, reg, 1, &data, 1) != 0)
-		return 1;
-
-	return 0;
-} /* dtt_write() */
-
-int
-dtt_init_one(int sensor)
-{
-	dtt_cfg_t *dcp = &dttcfg[sensor >> 1];
-	int reg, val;
-
-	if (((sensor & 1) == 0 ? dcp->enable_local : dcp->enable_remote) == 0)
-		return 1;	/* sensor is disabled (or rather ignored) */
-
-	/*
-	 * Setup High Limit register
-	 */
-	if ((sensor & 1) == 0) {
-		reg = DTT_WRITE_LOC_HIGHLIM;
-		val = dcp->max_local;
-	}
-	else {
-		reg = DTT_WRITE_REM_HIGHLIM;
-		val = dcp->max_remote;
-	}
-	if (dtt_write (sensor, reg, val) != 0)
-		return 1;
-
-	/*
-	 * Setup Low Limit register
-	 */
-	if ((sensor & 1) == 0) {
-		reg = DTT_WRITE_LOC_LOWLIM;
-		val = dcp->min_local;
-	}
-	else {
-		reg = DTT_WRITE_REM_LOWLIM;
-		val = dcp->min_remote;
-	}
-	if (dtt_write (sensor, reg, val) != 0)
-		return 1;
-
-	/* shouldn't hurt if the rest gets done twice */
-
-	/*
-	 * Setup Conversion Rate register
-	 */
-	if (dtt_write (sensor, DTT_WRITE_CONVRATE, dcp->conv_rate) != 0)
-		return 1;
-
-	/*
-	 * Setup configuraton register
-	 */
-	val = 0;				/* running */
-	if (dcp->enable_alert == 0)
-		val |= DTT_CONFIG_ALERT_MASKED;	/* mask ALERT pin */
-	if (dtt_write (sensor, DTT_WRITE_CONFIG, val) != 0)
-		return 1;
-
-	return 0;
-} /* dtt_init_one() */
-
-int
-dtt_get_temp (int sensor)
-{
-	signed char val;
-
-	if ((sensor & 1) == 0)
-		val = dtt_read(sensor, DTT_READ_LOC_VALUE);
-	else
-		val = dtt_read(sensor, DTT_READ_REM_VALUE);
-
-	return (int) val;
-} /* dtt_get_temp() */
diff --git a/drivers/hwmon/adt7460.c b/drivers/hwmon/adt7460.c
deleted file mode 100644
index 9b2c5b6..0000000
--- a/drivers/hwmon/adt7460.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * (C) Copyright 2008
- * Ricado Ribalda-Universidad Autonoma de Madrid, ricardo.ribalda@gmail.com
- * This work has been supported by: QTechnology  http://qtec.com/
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <i2c.h>
-#include <dtt.h>
-
-#define ADT7460_ADDRESS		0x2c
-#define ADT7460_INVALID		128
-#define ADT7460_CONFIG		0x40
-#define ADT7460_REM1_TEMP	0x25
-#define ADT7460_LOCAL_TEMP	0x26
-#define ADT7460_REM2_TEMP	0x27
-
-int dtt_read(int sensor, int reg)
-{
-	u8 dir = reg;
-	u8 data;
-
-	if (i2c_read(ADT7460_ADDRESS, dir, 1, &data, 1) == -1)
-		return -1;
-	if (data == ADT7460_INVALID)
-		return -1;
-
-	return data;
-}
-
-int dtt_write(int sensor, int reg, int val)
-{
-	u8 dir = reg;
-	u8 data = val;
-
-	if (i2c_write(ADT7460_ADDRESS, dir, 1, &data, 1) == -1)
-		return -1;
-
-	return 0;
-}
-
-int dtt_init_one(int sensor)
-{
-	printf("ADT7460 at I2C address 0x%2x\n", ADT7460_ADDRESS);
-
-	if (dtt_write(0, ADT7460_CONFIG, 1) == -1) {
-		puts("Error initialiting ADT7460\n");
-		return -1;
-	}
-
-	return 0;
-}
-
-int dtt_get_temp(int sensor)
-{
-	int aux;
-	u8 table[] =
-	    { ADT7460_REM1_TEMP, ADT7460_LOCAL_TEMP, ADT7460_REM2_TEMP };
-
-	if (sensor > 2) {
-		puts("DTT sensor does not exist\n");
-		return -1;
-	}
-
-	aux = dtt_read(0, table[sensor]);
-	if (aux == -1) {
-		puts("DTT temperature read failed\n");
-		return -1;
-	}
-
-	return aux;
-}
diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c
deleted file mode 100644
index 66947a6..0000000
--- a/drivers/hwmon/ds1621.c
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * (C) Copyright 2001
- * Erik Theisen,  Wave 7 Optics, etheisen@mindspring.com.
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-/*
- * Dallas Semiconductor's DS1621/1631 Digital Thermometer and Thermostat.
- */
-
-#include <common.h>
-#include <i2c.h>
-#include <dtt.h>
-
-/*
- * Device code
- */
-#define DTT_I2C_DEV_CODE 	0x48	/* Dallas Semi's DS1621 */
-#define DTT_READ_TEMP		0xAA
-#define DTT_READ_COUNTER	0xA8
-#define DTT_READ_SLOPE		0xA9
-#define DTT_WRITE_START_CONV	0xEE
-#define DTT_WRITE_STOP_CONV	0x22
-#define DTT_TEMP_HIGH		0xA1
-#define DTT_TEMP_LOW		0xA2
-#define DTT_CONFIG		0xAC
-
-/*
- * Config register bits
- */
-#define DTT_CONFIG_1SHOT	0x01
-#define DTT_CONFIG_POLARITY	0x02
-#define DTT_CONFIG_R0		0x04	/* ds1631 only */
-#define DTT_CONFIG_R1		0x08	/* ds1631 only */
-#define DTT_CONFIG_NVB		0x10
-#define DTT_CONFIG_TLF		0x20
-#define DTT_CONFIG_THF		0x40
-#define DTT_CONFIG_DONE		0x80
-
-
-int dtt_read(int sensor, int reg)
-{
-	int dlen;
-	uchar data[2];
-
-	/* Calculate sensor address and command */
-	sensor = DTT_I2C_DEV_CODE + (sensor & 0x07); /* Calculate addr of ds1621*/
-
-	/* Prepare to handle 2 byte result */
-	switch(reg) {
-	case DTT_READ_TEMP:
-	case DTT_TEMP_HIGH:
-	case DTT_TEMP_LOW:
-		dlen = 2;
-		break;
-	default:
-		dlen = 1;
-	}
-
-	/* Now try to read the register */
-	if (i2c_read(sensor, reg, 1, data, dlen) != 0)
-		return 1;
-
-	/* Handle 2 byte result */
-	if (dlen == 2)
-		return (short)((data[0] << 8) | data[1]);
-
-	return (int)data[0];
-}
-
-
-int dtt_write(int sensor, int reg, int val)
-{
-	int dlen;
-	uchar data[2];
-
-	/* Calculate sensor address and register */
-	sensor = DTT_I2C_DEV_CODE + (sensor & 0x07);
-
-	/* Handle various data sizes. */
-	switch(reg) {
-	case DTT_READ_TEMP:
-	case DTT_TEMP_HIGH:
-	case DTT_TEMP_LOW:
-		dlen = 2;
-		data[0] = (char)((val >> 8) & 0xff);	/* MSB first */
-		data[1] = (char)(val & 0xff);
-		break;
-	case DTT_WRITE_START_CONV:
-	case DTT_WRITE_STOP_CONV:
-		dlen = 0;
-		data[0] = (char)0;
-		data[1] = (char)0;
-		break;
-	default:
-		dlen = 1;
-		data[0] = (char)(val & 0xff);
-	}
-
-	/* Write value to device */
-	if (i2c_write(sensor, reg, 1, data, dlen) != 0)
-		return 1;
-
-	/* Poll NV memory busy bit in case write was to register stored in EEPROM */
-	while(i2c_reg_read(sensor, DTT_CONFIG) & DTT_CONFIG_NVB)
-		;
-
-	return 0;
-}
-
-
-int dtt_init_one(int sensor)
-{
-	int val;
-
-	/* Setup High Temp */
-	val = ((CONFIG_SYS_DTT_MAX_TEMP * 2) << 7) & 0xff80;
-	if (dtt_write(sensor, DTT_TEMP_HIGH, val) != 0)
-		return 1;
-
-	/* Setup Low Temp - hysteresis */
-	val = (((CONFIG_SYS_DTT_MAX_TEMP - CONFIG_SYS_DTT_HYSTERESIS) * 2) << 7) & 0xff80;
-	if (dtt_write(sensor, DTT_TEMP_LOW, val) != 0)
-		return 1;
-
-	/*
-	 * Setup configuraton register
-	 *
-	 * Clear THF & TLF, Reserved = 1, Polarity = Active Low, One Shot = YES
-	 *
-	 * We run in polled mode, since there isn't any way to know if this
-	 * lousy device is ready to provide temperature readings on power up.
-	 */
-	val = 0x9;
-	if (dtt_write(sensor, DTT_CONFIG, val) != 0)
-		return 1;
-
-	return 0;
-}
-
-int dtt_get_temp(int sensor)
-{
-	int i;
-
-	/* Start a conversion, may take up to 1 second. */
-	dtt_write(sensor, DTT_WRITE_START_CONV, 0);
-	for (i = 0; i <= 10; i++) {
-		udelay(100000);
-		if (dtt_read(sensor, DTT_CONFIG) & DTT_CONFIG_DONE)
-			break;
-	}
-
-	return (dtt_read(sensor, DTT_READ_TEMP) / 256);
-}
diff --git a/drivers/hwmon/ds1722.c b/drivers/hwmon/ds1722.c
deleted file mode 100644
index c469588..0000000
--- a/drivers/hwmon/ds1722.c
+++ /dev/null
@@ -1,137 +0,0 @@
-#include <common.h>
-#include <asm/ic/ssi.h>
-#include <ds1722.h>
-
-static void ds1722_select(int dev)
-{
-	ssi_set_interface(4096, 0, 0, 0);
-	ssi_chip_select(0);
-	udelay(1);
-	ssi_chip_select(dev);
-	udelay(1);
-}
-
-
-u8 ds1722_read(int dev, int addr)
-{
-	u8 res;
-
-	ds1722_select(dev);
-
-	ssi_tx_byte(addr);
-	res = ssi_rx_byte();
-
-	ssi_chip_select(0);
-
-	return res;
-}
-
-void ds1722_write(int dev, int addr, u8 data)
-{
-	ds1722_select(dev);
-
-	ssi_tx_byte(0x80|addr);
-	ssi_tx_byte(data);
-
-	ssi_chip_select(0);
-}
-
-
-u16 ds1722_temp(int dev, int resolution)
-{
-	static int useconds[] = {
-		75000, 150000, 300000, 600000, 1200000
-	};
-	char temp;
-	u16 res;
-
-
-	/* set up the desired resulotion ... */
-	ds1722_write(dev, 0, 0xe0 | (resolution << 1));
-
-	/* wait while the chip measures the tremperature */
-	udelay(useconds[resolution]);
-
-	res = (temp = ds1722_read(dev, 2)) << 8;
-
-	if (temp < 0) {
-		temp = (16 - (ds1722_read(dev, 1) >> 4)) & 0x0f;
-	} else {
-		temp = (ds1722_read(dev, 1) >> 4);
-	}
-
-	switch (temp) {
-	case 0:
-		/* .0000 */
-		break;
-	case 1:
-		/* .0625 */
-		res |=1;
-		break;
-	case 2:
-		/* .1250 */
-		res |=1;
-		break;
-	case 3:
-		/* .1875 */
-		res |=2;
-		break;
-	case 4:
-		/* .2500 */
-		res |=3;
-		break;
-	case 5:
-		/* .3125 */
-		res |=3;
-		break;
-	case 6:
-		/* .3750 */
-		res |=4;
-		break;
-	case 7:
-		/* .4375 */
-		res |=4;
-		break;
-	case 8:
-		/* .5000 */
-		res |=5;
-		break;
-	case 9:
-		/* .5625 */
-		res |=6;
-		break;
-	case 10:
-		/* .6250 */
-		res |=6;
-		break;
-	case 11:
-		/* .6875 */
-		res |=7;
-		break;
-	case 12:
-		/* .7500 */
-		res |=8;
-		break;
-	case 13:
-		/* .8125 */
-		res |=8;
-		break;
-	case 14:
-		/* .8750 */
-		res |=9;
-		break;
-	case 15:
-		/* .9375 */
-		res |=9;
-		break;
-	}
-	return res;
-
-}
-
-int ds1722_probe(int dev)
-{
-	u16 temp = ds1722_temp(dev, DS1722_RESOLUTION_12BIT);
-	printf("%d.%d deg C\n\n", (char)(temp >> 8), temp & 0xff);
-	return 0;
-}
diff --git a/drivers/hwmon/ds1775.c b/drivers/hwmon/ds1775.c
deleted file mode 100644
index 4c0c0b8..0000000
--- a/drivers/hwmon/ds1775.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-/*
- * Dallas Semiconductor's DS1775 Digital Thermometer and Thermostat
- */
-
-#include <common.h>
-
-#include <i2c.h>
-#include <dtt.h>
-
-#define DTT_I2C_DEV_CODE	0x48 /* Dallas Semi's DS1775 device code */
-#define DTT_READ_TEMP		0x0
-#define DTT_CONFIG		0x1
-#define DTT_TEMP_HYST		0x2
-#define DTT_TEMP_OS		0x3
-
-int dtt_read(int sensor, int reg)
-{
-	int dlen;
-	uchar data[2];
-
-	/*
-	 * Calculate sensor address and command
-	 */
-	sensor = DTT_I2C_DEV_CODE + (sensor & 0x07); /* Calculate addr of ds1775 */
-
-	/*
-	 * Prepare to handle 2 byte result
-	 */
-	if ((reg == DTT_READ_TEMP) ||
-	    (reg == DTT_TEMP_OS) || (reg == DTT_TEMP_HYST))
-		dlen = 2;
-	else
-		dlen = 1;
-
-	/*
-	 * Now try to read the register
-	 */
-	if (i2c_read(sensor, reg, 1, data, dlen) != 0)
-		return 1;
-
-	/*
-	 * Handle 2 byte result
-	 */
-	if (dlen == 2)
-		return ((int)((short)data[1] + (((short)data[0]) << 8)));
-
-	return (int) data[0];
-}
-
-
-int dtt_write(int sensor, int reg, int val)
-{
-	int dlen;
-	uchar data[2];
-
-	/*
-	 * Calculate sensor address and register
-	 */
-	sensor = DTT_I2C_DEV_CODE + (sensor & 0x07);
-
-	/*
-	 * Handle various data sizes
-	 */
-	if ((reg == DTT_READ_TEMP) ||
-	    (reg == DTT_TEMP_OS) || (reg == DTT_TEMP_HYST)) {
-		dlen = 2;
-		data[0] = (char)((val >> 8) & 0xff); /* MSB first */
-		data[1] = (char)(val & 0xff);
-	} else {
-		dlen = 1;
-		data[0] = (char)(val & 0xff);
-	}
-
-	/*
-	 * Write value to device
-	 */
-	if (i2c_write(sensor, reg, 1, data, dlen) != 0)
-		return 1;
-
-	return 0;
-}
-
-
-int dtt_init_one(int sensor)
-{
-	int val;
-
-	/*
-	 * Setup High Temp
-	 */
-	val = ((CONFIG_SYS_DTT_MAX_TEMP * 2) << 7) & 0xff80;
-	if (dtt_write(sensor, DTT_TEMP_OS, val) != 0)
-		return 1;
-	udelay(50000);			/* Max 50ms */
-
-	/*
-	 * Setup Low Temp - hysteresis
-	 */
-	val = (((CONFIG_SYS_DTT_MAX_TEMP - CONFIG_SYS_DTT_HYSTERESIS) * 2) << 7) & 0xff80;
-	if (dtt_write(sensor, DTT_TEMP_HYST, val) != 0)
-		return 1;
-	udelay(50000);			/* Max 50ms */
-
-	/*
-	 * Setup configuraton register
-	 *
-	 * Fault Tolerance limits 4, Thermometer resolution bits is 9,
-	 * Polarity = Active Low,continuous conversion mode, Thermostat
-	 * mode is interrupt mode
-	 */
-	val = 0xa;
-	if (dtt_write(sensor, DTT_CONFIG, val) != 0)
-		return 1;
-	udelay(50000);			/* Max 50ms */
-
-	return 0;
-}
-
-int dtt_get_temp(int sensor)
-{
-	return (dtt_read(sensor, DTT_READ_TEMP) / 256);
-}
diff --git a/drivers/hwmon/ds620.c b/drivers/hwmon/ds620.c
deleted file mode 100644
index 1ecc3da..0000000
--- a/drivers/hwmon/ds620.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * DS620 DTT support
- *
- * (C) Copyright 2014 3ADEV <http://www.3adev.com>
- * Written-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-/*
- * Dallas Semiconductor's DS1621/1631 Digital Thermometer and Thermostat.
- */
-
-#include <common.h>
-#include <i2c.h>
-#include <dtt.h>
-
-/*
- * Device code
- */
-#define DTT_I2C_DEV_CODE	0x48
-#define DTT_START_CONVERT	0x51
-#define DTT_TEMP		0xAA
-#define DTT_CONFIG		0xAC
-
-/*
- * Config register MSB bits
- */
-#define DTT_CONFIG_1SHOT	0x01
-#define DTT_CONFIG_AUTOC	0x02
-#define DTT_CONFIG_R0		0x04 /* always 1 */
-#define DTT_CONFIG_R1		0x08 /* always 1 */
-#define DTT_CONFIG_TLF	0x10
-#define DTT_CONFIG_THF	0x20
-#define DTT_CONFIG_NVB	0x40
-#define DTT_CONFIG_DONE	0x80
-
-#define CHIP(sensor) (DTT_I2C_DEV_CODE + (sensor & 0x07))
-
-int dtt_init_one(int sensor)
-{
-	uint8_t config = DTT_CONFIG_1SHOT
-			| DTT_CONFIG_R0
-			| DTT_CONFIG_R1;
-	return i2c_write(CHIP(sensor), DTT_CONFIG, 1, &config, 1);
-}
-
-int dtt_get_temp(int sensor)
-{
-	uint8_t status;
-	uint8_t temp[2];
-
-	/* Start a conversion, may take up to 1 second. */
-	i2c_write(CHIP(sensor), DTT_START_CONVERT, 1, NULL, 0);
-	do {
-		if (i2c_read(CHIP(sensor), DTT_CONFIG, 1, &status, 1))
-			/* bail out if I2C error */
-			status |= DTT_CONFIG_DONE;
-	} while (!(status & DTT_CONFIG_DONE));
-	if (i2c_read(CHIP(sensor), DTT_TEMP, 1, temp, 2))
-		/* bail out if I2C error */
-		return -274; /* below absolute zero == error */
-
-	return ((int16_t)(temp[1] | (temp[0] << 8))) >> 7;
-}
diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
deleted file mode 100644
index 053c785..0000000
--- a/drivers/hwmon/lm63.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * (C) Copyright 2007-2008
- * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
- * based on lm75.c by Bill Hunter
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-/*
- * National LM63/LM64 Temperature Sensor
- * Main difference: LM 64 has -16 Kelvin temperature offset
- */
-
-#include <common.h>
-#include <i2c.h>
-#include <dtt.h>
-
-#define DTT_I2C_LM63_ADDR	0x4C	/* National LM63 device */
-
-#define DTT_READ_TEMP_RMT_MSB	0x01
-#define DTT_CONFIG		0x03
-#define DTT_READ_TEMP_RMT_LSB	0x10
-#define DTT_TACHLIM_LSB		0x48
-#define DTT_TACHLIM_MSB		0x49
-#define DTT_FAN_CONFIG		0x4A
-#define DTT_PWM_FREQ		0x4D
-#define DTT_PWM_LOOKUP_BASE	0x50
-
-struct pwm_lookup_entry {
-	u8 temp;
-	u8 pwm;
-};
-
-/*
- * Device code
- */
-
-int dtt_read(int sensor, int reg)
-{
-	int dlen;
-	uchar data[2];
-
-	/*
-	 * Calculate sensor address and register.
-	 */
-	if (!sensor)
-		sensor = DTT_I2C_LM63_ADDR;	/* legacy config */
-
-	dlen = 1;
-
-	/*
-	 * Now try to read the register.
-	 */
-	if (i2c_read(sensor, reg, 1, data, dlen) != 0)
-		return -1;
-
-	return (int)data[0];
-}				/* dtt_read() */
-
-int dtt_write(int sensor, int reg, int val)
-{
-	int dlen;
-	uchar data[2];
-
-	/*
-	 * Calculate sensor address and register.
-	 */
-	if (!sensor)
-		sensor = DTT_I2C_LM63_ADDR;	/* legacy config */
-
-	dlen = 1;
-	data[0] = (char)(val & 0xff);
-
-	/*
-	 * Write value to register.
-	 */
-	if (i2c_write(sensor, reg, 1, data, dlen) != 0)
-		return 1;
-
-	return 0;
-}				/* dtt_write() */
-
-static int is_lm64(int sensor)
-{
-	return sensor && (sensor != DTT_I2C_LM63_ADDR);
-}
-
-int dtt_init_one(int sensor)
-{
-	int i;
-	int val;
-
-	struct pwm_lookup_entry pwm_lookup[] = CONFIG_DTT_PWM_LOOKUPTABLE;
-
-	/*
-	 * Set PWM Frequency to 2.5% resolution
-	 */
-	val = 20;
-	if (dtt_write(sensor, DTT_PWM_FREQ, val) != 0)
-		return 1;
-
-	/*
-	 * Set Tachometer Limit
-	 */
-	val = CONFIG_DTT_TACH_LIMIT;
-	if (dtt_write(sensor, DTT_TACHLIM_LSB, val & 0xff) != 0)
-		return 1;
-	if (dtt_write(sensor, DTT_TACHLIM_MSB, (val >> 8) & 0xff) != 0)
-		return 1;
-
-	/*
-	 * Make sure PWM Lookup-Table is writeable
-	 */
-	if (dtt_write(sensor, DTT_FAN_CONFIG, 0x20) != 0)
-		return 1;
-
-	/*
-	 * Setup PWM Lookup-Table
-	 */
-	for (i = 0; i < ARRAY_SIZE(pwm_lookup); i++) {
-		int address = DTT_PWM_LOOKUP_BASE + 2 * i;
-		val = pwm_lookup[i].temp;
-		if (is_lm64(sensor))
-			val -= 16;
-		if (dtt_write(sensor, address, val) != 0)
-			return 1;
-		val = dtt_read(sensor, address);
-		val = pwm_lookup[i].pwm;
-		if (dtt_write(sensor, address + 1, val) != 0)
-			return 1;
-	}
-
-	/*
-	 * Enable PWM Lookup-Table, PWM Clock 360 kHz, Tachometer Mode 2
-	 */
-	val = 0x02;
-	if (dtt_write(sensor, DTT_FAN_CONFIG, val) != 0)
-		return 1;
-
-	/*
-	 * Enable Tach input
-	 */
-	val = dtt_read(sensor, DTT_CONFIG) | 0x04;
-	if (dtt_write(sensor, DTT_CONFIG, val) != 0)
-		return 1;
-
-	return 0;
-}
-
-int dtt_get_temp(int sensor)
-{
-	s16 temp = (dtt_read(sensor, DTT_READ_TEMP_RMT_MSB) << 8)
-	    | (dtt_read(sensor, DTT_READ_TEMP_RMT_LSB));
-
-	if (is_lm64(sensor))
-		temp += 16 << 8;
-
-	/* Ignore LSB for now, U-Boot only prints natural numbers */
-	return temp >> 8;
-}
diff --git a/drivers/hwmon/lm73.c b/drivers/hwmon/lm73.c
deleted file mode 100644
index c15c751..0000000
--- a/drivers/hwmon/lm73.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * (C) Copyright 2007-2008
- * Larry Johnson, lrj@acm.org
- *
- * based on dtt/lm75.c which is ...
- *
- * (C) Copyright 2001
- * Bill Hunter,  Wave 7 Optics, williamhunter@mediaone.net
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-/*
- * National Semiconductor LM73 Temperature Sensor
- */
-
-#include <common.h>
-#include <i2c.h>
-#include <dtt.h>
-
-/*
- * Device code
- */
-#define DTT_I2C_DEV_CODE 0x48	/* National Semi's LM73 device */
-#define DTT_READ_TEMP		0x0
-#define DTT_CONFIG		0x1
-#define DTT_TEMP_HIGH		0x2
-#define DTT_TEMP_LOW		0x3
-#define DTT_CONTROL		0x4
-#define DTT_ID			0x7
-
-int dtt_read(int const sensor, int const reg)
-{
-	int dlen;
-	uint8_t data[2];
-
-	/*
-	 * Validate 'reg' param and get register size.
-	 */
-	switch (reg) {
-	case DTT_CONFIG:
-	case DTT_CONTROL:
-		dlen = 1;
-		break;
-	case DTT_READ_TEMP:
-	case DTT_TEMP_HIGH:
-	case DTT_TEMP_LOW:
-	case DTT_ID:
-		dlen = 2;
-		break;
-	default:
-		return -1;
-	}
-	/*
-	 * Try to read the register at the calculated sensor address.
-	 */
-	if (0 !=
-	    i2c_read(DTT_I2C_DEV_CODE + (sensor & 0x07), reg, 1, data, dlen))
-		return -1;
-	/*
-	 * Handle 2 byte result.
-	 */
-	if (2 == dlen)
-		return (int)((unsigned)data[0] << 8 | (unsigned)data[1]);
-
-	return (int)data[0];
-} /* dtt_read() */
-
-int dtt_write(int const sensor, int const reg, int const val)
-{
-	int dlen;
-	uint8_t data[2];
-
-	/*
-	 * Validate 'reg' param and handle register size
-	 */
-	switch (reg) {
-	case DTT_CONFIG:
-	case DTT_CONTROL:
-		dlen = 1;
-		data[0] = (uint8_t) val;
-		break;
-	case DTT_TEMP_HIGH:
-	case DTT_TEMP_LOW:
-		dlen = 2;
-		data[0] = (uint8_t) (val >> 8);	/* MSB first */
-		data[1] = (uint8_t) val;
-		break;
-	default:
-		return -1;
-	}
-	/*
-	 * Write value to register at the calculated sensor address.
-	 */
-	return 0 != i2c_write(DTT_I2C_DEV_CODE + (sensor & 0x07), reg, 1, data,
-			      dlen);
-} /* dtt_write() */
-
-int dtt_init_one(int const sensor)
-{
-	int val;
-
-	/*
-	 * Validate the Identification register
-	 */
-	if (0x0190 != dtt_read(sensor, DTT_ID))
-		return -1;
-	/*
-	 * Setup THIGH (upper-limit) and TLOW (lower-limit) registers
-	 */
-	val = CONFIG_SYS_DTT_MAX_TEMP << 7;
-	if (dtt_write(sensor, DTT_TEMP_HIGH, val))
-		return -1;
-
-	val = CONFIG_SYS_DTT_MIN_TEMP << 7;
-	if (dtt_write(sensor, DTT_TEMP_LOW, val))
-		return -1;
-	/*
-	 * Setup configuraton register
-	 */
-	/* config = alert active low, disabled, and reset */
-	val = 0x64;
-	if (dtt_write(sensor, DTT_CONFIG, val))
-		return -1;
-	/*
-	 * Setup control/status register
-	 */
-	/* control = temp resolution 0.25C */
-	val = 0x00;
-	if (dtt_write(sensor, DTT_CONTROL, val))
-		return -1;
-
-	dtt_read(sensor, DTT_CONTROL);	/* clear temperature flags */
-	return 0;
-} /* dtt_init_one() */
-
-int dtt_get_temp(int const sensor)
-{
-	int const ret = dtt_read(sensor, DTT_READ_TEMP);
-
-	if (ret < 0) {
-		printf("DTT temperature read failed.\n");
-		return 0;
-	}
-	return (int)((int16_t) ret + 0x0040) >> 7;
-} /* dtt_get_temp() */
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
deleted file mode 100644
index aafa475..0000000
--- a/drivers/hwmon/lm75.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * (C) Copyright 2001
- * Bill Hunter,  Wave 7 Optics, williamhunter@mediaone.net
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-/*
- * On Semiconductor's LM75 Temperature Sensor
- */
-
-#include <common.h>
-#include <i2c.h>
-#include <dtt.h>
-
-/*
- * Device code
- */
-#define DTT_I2C_DEV_CODE 0x48			/* ON Semi's LM75 device */
-#define DTT_READ_TEMP		0x0
-#define DTT_CONFIG		0x1
-#define DTT_TEMP_HYST		0x2
-#define DTT_TEMP_SET		0x3
-
-int dtt_read(int sensor, int reg)
-{
-	int dlen;
-	uchar data[2];
-
-#ifdef CONFIG_DTT_AD7414
-	/*
-	 * On AD7414 the first value upon bootup is not read correctly.
-	 * This is most likely because of the 800ms update time of the
-	 * temp register in normal update mode. To get current values
-	 * each time we issue the "dtt" command including upon powerup
-	 * we switch into one-short mode.
-	 *
-	 * Issue one-shot mode command
-	 */
-	dtt_write(sensor, DTT_CONFIG, 0x64);
-#endif
-
-	/* Validate 'reg' param */
-	if((reg < 0) || (reg > 3))
-		return -1;
-
-	/* Calculate sensor address and register. */
-	sensor = DTT_I2C_DEV_CODE + (sensor & 0x07);
-
-	/* Prepare to handle 2 byte result. */
-	if ((reg == DTT_READ_TEMP) ||
-		(reg == DTT_TEMP_HYST) ||
-		(reg == DTT_TEMP_SET))
-			dlen = 2;
-	else
-		dlen = 1;
-
-	/* Now try to read the register. */
-	if (i2c_read(sensor, reg, 1, data, dlen) != 0)
-		return -1;
-
-	/* Handle 2 byte result. */
-	if (dlen == 2)
-		return ((int)((short)data[1] + (((short)data[0]) << 8)));
-
-	return (int)data[0];
-} /* dtt_read() */
-
-
-int dtt_write(int sensor, int reg, int val)
-{
-	int dlen;
-	uchar data[2];
-
-	/* Validate 'reg' param */
-	if ((reg < 0) || (reg > 3))
-		return 1;
-
-	/* Calculate sensor address and register. */
-	sensor = DTT_I2C_DEV_CODE + (sensor & 0x07);
-
-	/* Handle 2 byte values. */
-	if ((reg == DTT_READ_TEMP) ||
-		(reg == DTT_TEMP_HYST) ||
-		(reg == DTT_TEMP_SET)) {
-			dlen = 2;
-		data[0] = (char)((val >> 8) & 0xff);	/* MSB first */
-		data[1] = (char)(val & 0xff);
-	} else {
-		dlen = 1;
-		data[0] = (char)(val & 0xff);
-	}
-
-	/* Write value to register. */
-	if (i2c_write(sensor, reg, 1, data, dlen) != 0)
-		return 1;
-
-	return 0;
-} /* dtt_write() */
-
-
-int dtt_init_one(int sensor)
-{
-	int val;
-
-	/* Setup TSET ( trip point ) register */
-	val = ((CONFIG_SYS_DTT_MAX_TEMP * 2) << 7) & 0xff80; /* trip */
-	if (dtt_write(sensor, DTT_TEMP_SET, val) != 0)
-		return 1;
-
-	/* Setup THYST ( untrip point ) register - Hysteresis */
-	val = (((CONFIG_SYS_DTT_MAX_TEMP - CONFIG_SYS_DTT_HYSTERESIS) * 2) << 7) & 0xff80;
-	if (dtt_write(sensor, DTT_TEMP_HYST, val) != 0)
-		return 1;
-
-	/* Setup configuraton register */
-#ifdef CONFIG_DTT_AD7414
-	/* config = alert active low and disabled */
-	val = 0x60;
-#else
-	/* config = 6 sample integration, int mode, active low, and enable */
-	val = 0x18;
-#endif
-	if (dtt_write(sensor, DTT_CONFIG, val) != 0)
-		return 1;
-
-	return 0;
-} /* dtt_init_one() */
-
-int dtt_get_temp(int sensor)
-{
-	int const ret = dtt_read(sensor, DTT_READ_TEMP);
-
-	if (ret < 0) {
-		printf("DTT temperature read failed.\n");
-		return 0;
-	}
-	return (int)((int16_t) ret / 256);
-} /* dtt_get_temp() */
diff --git a/drivers/hwmon/lm81.c b/drivers/hwmon/lm81.c
deleted file mode 100644
index bcc8d32..0000000
--- a/drivers/hwmon/lm81.c
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * (C) Copyright 2006
- * Heiko Schocher, DENX Software Enginnering <hs@denx.de>
- *
- * based on dtt/lm75.c which is ...
- *
- * (C) Copyright 2001
- * Bill Hunter,  Wave 7 Optics, williamhunter@mediaone.net
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-/*
- * On Semiconductor's LM81 Temperature Sensor
- */
-
-#include <common.h>
-#include <i2c.h>
-#include <dtt.h>
-
-/*
- * Device code
- */
-#define DTT_I2C_DEV_CODE 0x2c			/* ON Semi's LM81 device */
-#define DTT_READ_TEMP		0x27
-#define DTT_CONFIG_TEMP		0x4b
-#define DTT_TEMP_MAX		0x39
-#define DTT_TEMP_HYST		0x3a
-#define DTT_CONFIG		0x40
-
-int dtt_read(int sensor, int reg)
-{
-    int dlen = 1;
-    uchar data[2];
-
-    /*
-     * Calculate sensor address and register.
-     */
-    sensor = DTT_I2C_DEV_CODE + (sensor & 0x03); /* calculate address of lm81 */
-
-    /*
-     * Now try to read the register.
-     */
-    if (i2c_read(sensor, reg, 1, data, dlen) != 0)
-	return -1;
-
-    return (int)data[0];
-} /* dtt_read() */
-
-
-int dtt_write(int sensor, int reg, int val)
-{
-    uchar data;
-
-    /*
-     * Calculate sensor address and register.
-     */
-    sensor = DTT_I2C_DEV_CODE + (sensor & 0x03); /* calculate address of lm81 */
-
-    data = (char)(val & 0xff);
-
-    /*
-     * Write value to register.
-     */
-    if (i2c_write(sensor, reg, 1, &data, 1) != 0)
-	return 1;
-
-    return 0;
-} /* dtt_write() */
-
-#define DTT_MANU	0x3e
-#define DTT_REV		0x3f
-#define DTT_CONFIG	0x40
-#define DTT_ADR		0x48
-
-int dtt_init_one(int sensor)
-{
-	int	man;
-	int	adr;
-	int	rev;
-
-	if (dtt_write (sensor, DTT_CONFIG, 0x01) < 0)
-		return 1;
-	/* The LM81 needs 400ms to get the correct values ... */
-	udelay (400000);
-	man = dtt_read (sensor, DTT_MANU);
-	if (man != 0x01)
-		return 1;
-	adr = dtt_read (sensor, DTT_ADR);
-	if (adr < 0)
-		return 1;
-	rev = dtt_read (sensor, DTT_REV);
-	if (rev < 0)
-		return 1;
-
-	debug ("DTT:   Found LM81@%x Rev: %d\n", adr, rev);
-	return 0;
-} /* dtt_init_one() */
-
-
-#define TEMP_FROM_REG(temp) \
-   ((temp)<256?((((temp)&0x1fe) >> 1) * 10)	 + ((temp) & 1) * 5:  \
-	       ((((temp)&0x1fe) >> 1) -255) * 10 - ((temp) & 1) * 5)  \
-
-int dtt_get_temp(int sensor)
-{
-	int val = dtt_read (sensor, DTT_READ_TEMP);
-	int tmpcnf = dtt_read (sensor, DTT_CONFIG_TEMP);
-
-	return (TEMP_FROM_REG((val << 1) + ((tmpcnf & 0x80) >> 7))) / 10;
-} /* dtt_get_temp() */