drivers/i2c/w83793: Drop dead code

Nothing selects this driver. Drop it before it grows moss.

Change-Id: I4d0e678a8725c1fdf9263b9fae4e4fb6bb5ab4de
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43268
Reviewed-by: Michael Niewöhner
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

5 files changed, 0 insertions, 409 deletions

diff --git a/src/drivers/i2c/w83793/Kconfig b/src/drivers/i2c/w83793/Kconfig
deleted file mode 100644
index d7f8cd1fe1..0000000000
--- a/src/drivers/i2c/w83793/Kconfig
+++ /dev/null
@@ -1,2 +0,0 @@
-config DRIVERS_I2C_W83793
-	bool
diff --git a/src/drivers/i2c/w83793/Makefile.inc b/src/drivers/i2c/w83793/Makefile.inc
deleted file mode 100644
index f7843a5c24..0000000000
--- a/src/drivers/i2c/w83793/Makefile.inc
+++ /dev/null
@@ -1 +0,0 @@
-ramstage-$(CONFIG_DRIVERS_I2C_W83793) += w83793.c
diff --git a/src/drivers/i2c/w83793/chip.h b/src/drivers/i2c/w83793/chip.h
deleted file mode 100644
index ea992e47b0..0000000000
--- a/src/drivers/i2c/w83793/chip.h
+++ /dev/null
@@ -1,93 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-struct drivers_i2c_w83793_config {
-	u8 mfc;
-	u8 fanin;
-	u8 fanin_sel;
-	u8 peci_agent_conf;
-	u8 tcase0;			/* °C */
-	u8 tcase1;			/* °C */
-	u8 tcase2;			/* °C */
-	u8 tcase3;			/* °C */
-	u8 tr_enable;
-	u8 td_mode_select;
-	u8 critical_temperature;	/* °C */
-
-	u32 vcorea_high_limit_mv;	/* mV */
-	u32 vcorea_low_limit_mv;	/* mV */
-	u32 vcoreb_high_limit_mv;	/* mV */
-	u32 vcoreb_low_limit_mv;	/* mV */
-	u32 vtt_high_limit_mv;		/* mV */
-	u32 vtt_low_limit_mv;		/* mV */
-	u32 vsen1_high_limit_mv;	/* mV */
-	u32 vsen1_low_limit_mv;		/* mV */
-	u32 vsen2_high_limit_mv;	/* mV */
-	u32 vsen2_low_limit_mv;		/* mV */
-	u32 vsen3_high_limit_mv;	/* mV */
-	u32 vsen3_low_limit_mv;		/* mV */
-	u32 vsen4_high_limit_mv;	/* mV */
-	u32 vsen4_low_limit_mv;		/* mV */
-	u32 vdd_high_limit_mv;		/* mV */
-	u32 vdd_low_limit_mv;		/* mV */
-	u32 vsb_high_limit_mv;		/* mV */
-	u32 vsb_low_limit_mv;		/* mV */
-	u32 vbat_high_limit_mv;		/* mV */
-	u32 vbat_low_limit_mv;		/* mV */
-
-	u8 td1_critical_temperature;	/* °C */
-	u8 td1_critical_hysteresis;	/* °C */
-	u8 td1_warning_temperature;	/* °C */
-	u8 td1_warning_hysteresis;	/* °C */
-	u8 td2_critical_temperature;	/* °C */
-	u8 td2_critical_hysteresis;	/* °C */
-	u8 td2_warning_temperature;	/* °C */
-	u8 td2_warning_hysteresis;	/* °C */
-	u8 td3_critical_temperature;	/* °C */
-	u8 td3_critical_hysteresis;	/* °C */
-	u8 td3_warning_temperature;	/* °C */
-	u8 td3_warning_hysteresis;	/* °C */
-	u8 td4_critical_temperature;	/* °C */
-	u8 td4_critical_hysteresis;	/* °C */
-	u8 td4_warning_temperature;	/* °C */
-	u8 td4_warning_hysteresis;	/* °C */
-	u8 tr1_critical_temperature;	/* °C */
-	u8 tr1_critical_hysteresis;	/* °C */
-	u8 tr1_warning_temperature;	/* °C */
-	u8 tr1_warning_hysteresis;	/* °C */
-	u8 tr2_critical_temperature;	/* °C */
-	u8 tr2_critical_hysteresis;	/* °C */
-	u8 tr2_warning_temperature;	/* °C */
-	u8 tr2_warning_hysteresis;	/* °C */
-
-	u8 fanctrl1;
-	u8 fanctrl2;
-	u8 first_valid_fan_number;
-
-	u8 td1_fan_select;
-	u8 td2_fan_select;
-	u8 td3_fan_select;
-	u8 td4_fan_select;
-
-	u8 tr1_fan_select;
-	u8 tr2_fan_select;
-
-	u8 fan1_nonstop;		/* % of full speed (0-100) */
-	u8 fan2_nonstop;		/* % of full speed (0-100) */
-	u8 fan3_nonstop;		/* % of full speed (0-100) */
-	u8 fan4_nonstop;		/* % of full speed (0-100) */
-	u8 fan5_nonstop;		/* % of full speed (0-100) */
-	u8 fan6_nonstop;		/* % of full speed (0-100) */
-	u8 fan7_nonstop;		/* % of full speed (0-100) */
-	u8 fan8_nonstop;		/* % of full speed (0-100) */
-
-	u8 default_speed;		/* % of full speed (0-100) */
-
-	u8 fan1_duty;			/* % of full speed (0-100) */
-	u8 fan2_duty;			/* % of full speed (0-100) */
-	u8 fan3_duty;			/* % of full speed (0-100) */
-	u8 fan4_duty;			/* % of full speed (0-100) */
-	u8 fan5_duty;			/* % of full speed (0-100) */
-	u8 fan6_duty;			/* % of full speed (0-100) */
-	u8 fan7_duty;			/* % of full speed (0-100) */
-	u8 fan8_duty;			/* % of full speed (0-100) */
-};
diff --git a/src/drivers/i2c/w83793/w83793.c b/src/drivers/i2c/w83793/w83793.c
deleted file mode 100644
index 1233f9ff8a..0000000000
--- a/src/drivers/i2c/w83793/w83793.c
+++ /dev/null
@@ -1,307 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <stdint.h>
-#include <console/console.h>
-#include <device/device.h>
-#include "w83793.h"
-#include <device/smbus.h>
-#include "chip.h"
-
-static int w83793_fan_limit(struct device *dev, int fan, uint16_t limit)
-{
-	return smbus_write_byte(dev, 0x90 + fan * 2, limit >> 8) ||
-		smbus_write_byte(dev, 0x91 + fan * 2, limit & 0xff);
-}
-
-static int w83793_bank(struct device *dev, int bank)
-{
-	return smbus_write_byte(dev, 0, bank);
-}
-
-static int w83793_td_level(struct device *dev, int fan, const char *level)
-{
-	fan *= 0x10;
-
-	smbus_write_byte(dev, 0x30 + fan, level[0]);
-	smbus_write_byte(dev, 0x31 + fan, level[1]);
-	smbus_write_byte(dev, 0x32 + fan, level[2]);
-	smbus_write_byte(dev, 0x33 + fan, level[3]);
-	smbus_write_byte(dev, 0x34 + fan, level[4]);
-	smbus_write_byte(dev, 0x35 + fan, level[5]);
-	smbus_write_byte(dev, 0x36 + fan, level[6]);
-	return 0;
-}
-
-static int w83793_tr_level(struct device *dev, int fan, const char *level)
-{
-	fan *= 0x10;
-
-	smbus_write_byte(dev, 0x70 + fan, level[0]);
-	smbus_write_byte(dev, 0x71 + fan, level[1]);
-	smbus_write_byte(dev, 0x72 + fan, level[2]);
-	smbus_write_byte(dev, 0x73 + fan, level[3]);
-	smbus_write_byte(dev, 0x74 + fan, level[4]);
-	smbus_write_byte(dev, 0x75 + fan, level[5]);
-	smbus_write_byte(dev, 0x76 + fan, level[6]);
-	return 0;
-}
-
-
-static int w83793_td_fan_level(struct device *dev, int fan, const char *level)
-{
-	fan *= 0x10;
-
-	smbus_write_byte(dev, 0x38 + fan, level[0]);
-	smbus_write_byte(dev, 0x39 + fan, level[1]);
-	smbus_write_byte(dev, 0x3a + fan, level[2]);
-	smbus_write_byte(dev, 0x3b + fan, level[3]);
-	smbus_write_byte(dev, 0x3c + fan, level[4]);
-	smbus_write_byte(dev, 0x3d + fan, level[5]);
-	smbus_write_byte(dev, 0x3e + fan, level[6]);
-	return 0;
-}
-
-static int w83793_tr_fan_level(struct device *dev, int fan, const char *level)
-{
-	fan *= 0x10;
-
-	smbus_write_byte(dev, 0x78 + fan, level[0]);
-	smbus_write_byte(dev, 0x79 + fan, level[1]);
-	smbus_write_byte(dev, 0x7a + fan, level[2]);
-	smbus_write_byte(dev, 0x7b + fan, level[3]);
-	smbus_write_byte(dev, 0x7c + fan, level[4]);
-	smbus_write_byte(dev, 0x7d + fan, level[5]);
-	smbus_write_byte(dev, 0x7e + fan, level[6]);
-	return 0;
-}
-
-static uint8_t millivolts_to_limit_value_type1(int millivolts)
-{
-	/* Datasheet v1.4 page 64 (VCoreA, VCoreB, Vtt Limit) */
-	return ((millivolts * 125) / 1000);
-}
-
-static uint8_t millivolts_to_limit_value_type2(int millivolts)
-{
-	/* Datasheet v1.4 page 64 (VSEN1, VEN2, VSEN3) */
-	return ((millivolts * 625) / 10000);
-}
-
-static uint8_t millivolts_to_limit_value_type3(int millivolts)
-{
-	/* Datasheet v1.4 page 64 (5VDD, 5VSB) */
-	return ((((millivolts * 10) + 1500) * 417) / 10000);
-}
-
-static uint8_t fan_pct_to_cfg_val(uint8_t percent)
-{
-	uint8_t cfg = (((unsigned int)percent * 10000) / 15873);
-	if (cfg > 0x3f)
-		cfg = 0x3f;
-	return cfg;
-}
-
-static void w83793_init(struct device *dev)
-{
-	struct drivers_i2c_w83793_config *config = dev->chip_info;
-	uint16_t id;
-	int i;
-
-	if (w83793_bank(dev, 0))
-		printk(BIOS_ERR, "%s: failed\n", __func__);
-
-	if (!config)
-		return;
-
-	id = smbus_read_byte(dev, 0x0d);
-	w83793_bank(dev, 0x80);
-	id |= smbus_read_byte(dev, 0x0d) << 8;
-	printk(BIOS_ERR, "ID: %04x\n", id);
-
-	/* reset configuration */
-	smbus_write_byte(dev, 0x40, 0x80);
-	smbus_write_byte(dev, 0x51, 0x06);
-
-	/* Multi function control */
-	smbus_write_byte(dev, 0x58, config->mfc);
-
-	/* FANIN_Ctrl */
-	smbus_write_byte(dev, 0x5c, config->fanin);
-
-	/* FANIN_Sel */
-	smbus_write_byte(dev, 0x5d, config->fanin_sel);
-
-	/* Temperature source */
-	smbus_write_byte(dev, 0x5e, config->td_mode_select);
-	/* TR monitor enable */
-	smbus_write_byte(dev, 0x5f, config->tr_enable);
-	/* PECI Agent configuration */
-	smbus_write_byte(dev, 0xd0, config->peci_agent_conf);
-	/* TCase */
-	smbus_write_byte(dev, 0xd1, config->tcase0);
-	smbus_write_byte(dev, 0xd2, config->tcase1);
-	smbus_write_byte(dev, 0xd3, config->tcase2);
-	smbus_write_byte(dev, 0xd4, config->tcase3);
-	/* PECI Reportstyle */
-	smbus_write_byte(dev, 0xd5, 0x00);
-
-	/* Voltage high/low limits */
-	smbus_write_byte(dev, 0x60, millivolts_to_limit_value_type1(config->vcorea_high_limit_mv));
-	smbus_write_byte(dev, 0x61, millivolts_to_limit_value_type1(config->vcorea_low_limit_mv));
-	smbus_write_byte(dev, 0x62, millivolts_to_limit_value_type1(config->vcoreb_high_limit_mv));
-	smbus_write_byte(dev, 0x63, millivolts_to_limit_value_type1(config->vcoreb_low_limit_mv));
-	smbus_write_byte(dev, 0x64, millivolts_to_limit_value_type1(config->vtt_high_limit_mv));
-	smbus_write_byte(dev, 0x65, millivolts_to_limit_value_type1(config->vtt_low_limit_mv));
-	smbus_write_byte(dev, 0x6a, millivolts_to_limit_value_type2(config->vsen1_high_limit_mv));
-	smbus_write_byte(dev, 0x6b, millivolts_to_limit_value_type2(config->vsen1_low_limit_mv));
-	smbus_write_byte(dev, 0x6c, millivolts_to_limit_value_type2(config->vsen2_high_limit_mv));
-	smbus_write_byte(dev, 0x6d, millivolts_to_limit_value_type2(config->vsen2_low_limit_mv));
-	smbus_write_byte(dev, 0x6e, millivolts_to_limit_value_type2(config->vsen3_high_limit_mv));
-	smbus_write_byte(dev, 0x6f, millivolts_to_limit_value_type2(config->vsen3_low_limit_mv));
-	smbus_write_byte(dev, 0x70, millivolts_to_limit_value_type1(config->vsen4_high_limit_mv));
-	smbus_write_byte(dev, 0x71, millivolts_to_limit_value_type1(config->vsen4_low_limit_mv));
-	smbus_write_byte(dev, 0x72, millivolts_to_limit_value_type3(config->vdd_high_limit_mv));
-	smbus_write_byte(dev, 0x73, millivolts_to_limit_value_type3(config->vdd_low_limit_mv));
-	smbus_write_byte(dev, 0x74, millivolts_to_limit_value_type3(config->vsb_high_limit_mv));
-	smbus_write_byte(dev, 0x75, millivolts_to_limit_value_type3(config->vsb_low_limit_mv));
-	smbus_write_byte(dev, 0x76, millivolts_to_limit_value_type2(config->vbat_high_limit_mv));
-	smbus_write_byte(dev, 0x77, millivolts_to_limit_value_type2(config->vbat_low_limit_mv));
-
-	/* Temperature high/low limits */
-	smbus_write_byte(dev, 0x78, config->td1_critical_temperature);
-	smbus_write_byte(dev, 0x79, config->td1_critical_hysteresis);
-	smbus_write_byte(dev, 0x7a, config->td1_warning_temperature);
-	smbus_write_byte(dev, 0x7b, config->td1_warning_hysteresis);
-	smbus_write_byte(dev, 0x7c, config->td2_critical_temperature);
-	smbus_write_byte(dev, 0x7d, config->td2_critical_hysteresis);
-	smbus_write_byte(dev, 0x7e, config->td2_warning_temperature);
-	smbus_write_byte(dev, 0x7f, config->td2_warning_hysteresis);
-	smbus_write_byte(dev, 0x80, config->td3_critical_temperature);
-	smbus_write_byte(dev, 0x81, config->td3_critical_hysteresis);
-	smbus_write_byte(dev, 0x82, config->td3_warning_temperature);
-	smbus_write_byte(dev, 0x83, config->td3_warning_hysteresis);
-	smbus_write_byte(dev, 0x84, config->td4_critical_temperature);
-	smbus_write_byte(dev, 0x85, config->td4_critical_hysteresis);
-	smbus_write_byte(dev, 0x86, config->td4_warning_temperature);
-	smbus_write_byte(dev, 0x87, config->td4_warning_hysteresis);
-	smbus_write_byte(dev, 0x88, config->tr1_critical_temperature);
-	smbus_write_byte(dev, 0x89, config->tr1_critical_hysteresis);
-	smbus_write_byte(dev, 0x8a, config->tr1_warning_temperature);
-	smbus_write_byte(dev, 0x8b, config->tr1_warning_hysteresis);
-	smbus_write_byte(dev, 0x8c, config->tr2_critical_temperature);
-	smbus_write_byte(dev, 0x8d, config->tr2_critical_hysteresis);
-	smbus_write_byte(dev, 0x8e, config->tr2_warning_temperature);
-	smbus_write_byte(dev, 0x8f, config->tr2_warning_hysteresis);
-
-	/* Set minimum FAN speeds before alarms will be set */
-	for (i = 0; i < config->first_valid_fan_number; i++)
-		w83793_fan_limit(dev, i, 0x0);
-	for (i = config->first_valid_fan_number; i < 12; i++)
-		w83793_fan_limit(dev, i, 0x768);
-
-	/* Fan output style control */
-	smbus_write_byte(dev, 0xb0, config->fanctrl1);
-	smbus_write_byte(dev, 0xb1, config->fanctrl2);
-
-	/* FAN Uptime */
-	smbus_write_byte(dev, 0xc3, 0x02);
-
-	/* FAN downtime */
-	smbus_write_byte(dev, 0xc4, 0x03);
-
-	/* ALL FAN critical temperature */
-	smbus_write_byte(dev, 0xc5, config->critical_temperature);
-
-	/* Temperature offset */
-	smbus_write_byte(dev, 0xa8, 0xf9);
-	smbus_write_byte(dev, 0xa9, 0xf9);
-	smbus_write_byte(dev, 0xaa, 0xf9);
-	smbus_write_byte(dev, 0xab, 0xf9);
-
-	/* Default FAN speed */
-	smbus_write_byte(dev, 0xb2, fan_pct_to_cfg_val(config->default_speed));
-
-	/* Manual FAN speeds */
-	smbus_write_byte(dev, 0xb3, fan_pct_to_cfg_val(config->fan1_duty));
-	smbus_write_byte(dev, 0xb4, fan_pct_to_cfg_val(config->fan2_duty));
-	smbus_write_byte(dev, 0xb5, fan_pct_to_cfg_val(config->fan3_duty));
-	smbus_write_byte(dev, 0xb6, fan_pct_to_cfg_val(config->fan4_duty));
-	smbus_write_byte(dev, 0xb7, fan_pct_to_cfg_val(config->fan5_duty));
-	smbus_write_byte(dev, 0xb8, fan_pct_to_cfg_val(config->fan6_duty));
-	smbus_write_byte(dev, 0xb9, fan_pct_to_cfg_val(config->fan7_duty));
-	smbus_write_byte(dev, 0xba, fan_pct_to_cfg_val(config->fan8_duty));
-
-	/* BANK 2 */
-	smbus_write_byte(dev, 0x00, 0x02);
-
-	/* TD FAN select */
-	smbus_write_byte(dev, 0x01, config->td1_fan_select);
-	smbus_write_byte(dev, 0x02, config->td2_fan_select);
-	smbus_write_byte(dev, 0x03, config->td3_fan_select);
-	smbus_write_byte(dev, 0x04, config->td4_fan_select);
-
-	smbus_write_byte(dev, 0x05, config->tr1_fan_select);
-	smbus_write_byte(dev, 0x06, config->tr2_fan_select);
-
-	/* FAN control mode */
-	smbus_write_byte(dev, 0x07, 0x00);
-
-	/* hysteresis tolerance */
-	smbus_write_byte(dev, 0x08, 0xaa);
-	smbus_write_byte(dev, 0x09, 0xaa);
-
-	/* FanNonStop */
-	smbus_write_byte(dev, 0x18, fan_pct_to_cfg_val(config->fan1_nonstop));
-	smbus_write_byte(dev, 0x19, fan_pct_to_cfg_val(config->fan2_nonstop));
-	smbus_write_byte(dev, 0x1a, fan_pct_to_cfg_val(config->fan3_nonstop));
-	smbus_write_byte(dev, 0x1b, fan_pct_to_cfg_val(config->fan4_nonstop));
-	smbus_write_byte(dev, 0x1c, fan_pct_to_cfg_val(config->fan5_nonstop));
-	smbus_write_byte(dev, 0x1d, fan_pct_to_cfg_val(config->fan6_nonstop));
-	smbus_write_byte(dev, 0x1e, fan_pct_to_cfg_val(config->fan7_nonstop));
-	smbus_write_byte(dev, 0x1f, fan_pct_to_cfg_val(config->fan8_nonstop));
-
-	/* FanStart */
-	smbus_write_byte(dev, 0x20, 0x08);
-	smbus_write_byte(dev, 0x21, 0x08);
-	smbus_write_byte(dev, 0x22, 0x08);
-	smbus_write_byte(dev, 0x23, 0x08);
-	smbus_write_byte(dev, 0x24, 0x08);
-	smbus_write_byte(dev, 0x25, 0x08);
-	smbus_write_byte(dev, 0x26, 0x08);
-	smbus_write_byte(dev, 0x27, 0x08);
-
-	for (i = 0; i < 4; i++)
-		w83793_td_level(dev, i, (const char[]){ 0x32, 0x32, 0x32, 0x32, 0x37, 0x41, 0x4b });
-
-	for (i = 0; i < 2; i++)
-		w83793_tr_level(dev, i, (const char[]){ 0x1e, 0x23, 0x28, 0x2d, 0x32, 0x37, 0x3c });
-
-	for (i = 0; i < 4; i++)
-		w83793_td_fan_level(dev, i, (const char[]){ 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x1d, 0x26 });
-
-	for (i = 0; i < 2; i++)
-		w83793_tr_fan_level(dev, i, (const char[]){ 0x08, 0x0c, 0x10, 0x18, 0x20, 0x30, 0x38 });
-
-
-	smbus_write_byte(dev, 0x00, 0x00);
-
-	/* start monitoring operation */
-	smbus_write_byte(dev, 0x40, 0x09);
-
-}
-
-static struct device_operations w83793_operations = {
-	.read_resources = noop_read_resources,
-	.set_resources = noop_set_resources,
-	.init = w83793_init,
-};
-
-static void enable_dev(struct device *dev)
-{
-	dev->ops = &w83793_operations;
-}
-
-struct chip_operations drivers_i2c_w83793_ops = {
-	CHIP_NAME("Nuvoton W83793 Hardware Monitor")
-	.enable_dev = enable_dev,
-};
diff --git a/src/drivers/i2c/w83793/w83793.h b/src/drivers/i2c/w83793/w83793.h
deleted file mode 100644
index 4ee33b025f..0000000000
--- a/src/drivers/i2c/w83793/w83793.h
+++ /dev/null
@@ -1,6 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#ifndef W83793_H
-#define W83793_H
-
-#endif