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>

1 files changed, 0 insertions, 160 deletions

diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
deleted file mode 100644
index 053c785fc56..00000000000
--- 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;
-}