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-rw-r--r--drivers/hwmon/lm73.c146
1 files changed, 0 insertions, 146 deletions
diff --git a/drivers/hwmon/lm73.c b/drivers/hwmon/lm73.c
deleted file mode 100644
index c15c7514d86..00000000000
--- 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() */