From e70d1d4b588d9b483fec9f9a85c33d367fed4e78 Mon Sep 17 00:00:00 2001 From: Angel Pons Date: Wed, 8 Jul 2020 00:57:43 +0200 Subject: drivers/i2c/adt7463: Drop dead code MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Nothing selects this driver. Drop it before it grows moss. Change-Id: I9311dd07b8259384badec65da649fa0cf2da1e01 Signed-off-by: Angel Pons Reviewed-on: https://review.coreboot.org/c/coreboot/+/43267 Reviewed-by: Michael Niewöhner Tested-by: build bot (Jenkins) --- src/drivers/i2c/adt7463/Kconfig | 2 - src/drivers/i2c/adt7463/Makefile.inc | 1 - src/drivers/i2c/adt7463/adt7463.c | 82 ------------------------------------ 3 files changed, 85 deletions(-) delete mode 100644 src/drivers/i2c/adt7463/Kconfig delete mode 100644 src/drivers/i2c/adt7463/Makefile.inc delete mode 100644 src/drivers/i2c/adt7463/adt7463.c (limited to 'src/drivers') diff --git a/src/drivers/i2c/adt7463/Kconfig b/src/drivers/i2c/adt7463/Kconfig deleted file mode 100644 index b9423417ed..0000000000 --- a/src/drivers/i2c/adt7463/Kconfig +++ /dev/null @@ -1,2 +0,0 @@ -config DRIVERS_I2C_ADT7463 - bool diff --git a/src/drivers/i2c/adt7463/Makefile.inc b/src/drivers/i2c/adt7463/Makefile.inc deleted file mode 100644 index d75981bc5c..0000000000 --- a/src/drivers/i2c/adt7463/Makefile.inc +++ /dev/null @@ -1 +0,0 @@ -ramstage-$(CONFIG_DRIVERS_I2C_ADT7463) += adt7463.c diff --git a/src/drivers/i2c/adt7463/adt7463.c b/src/drivers/i2c/adt7463/adt7463.c deleted file mode 100644 index 475ea9a1a1..0000000000 --- a/src/drivers/i2c/adt7463/adt7463.c +++ /dev/null @@ -1,82 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ - -#include -#include -#include - -/** - * Do some S2881-specific HWM initialization for the ADT7463 chip. - * - * Should be factored out so that it can be more general. - * - * See Analog Devices ADT7463 datasheet, Rev C (2004): - * http://www.analog.com/en/prod/0,,766_825_ADT7463,00.html - */ -static void adt7463_init(struct device *adt7463) -{ - int result; - - printk(BIOS_DEBUG, "ADT7463 is %s\n", dev_path(adt7463)); - - /* Set all fans to 'Fastest Speed Calculated by All 3 Temperature - * Channels Controls PWMx'. - */ - result = smbus_write_byte(adt7463, 0x5c, 0xc2); - result = smbus_write_byte(adt7463, 0x5d, 0xc2); - result = smbus_write_byte(adt7463, 0x5e, 0xc2); - - /* Make sure that our fans never stop when temp. falls below Tmin, - * but rather keep going at minimum duty cycle (applies to automatic - * fan control mode only). - */ - result = smbus_write_byte(adt7463, 0x62, 0xc0); - - /* Set minimum PWM duty cycle to 25%, rather than the default 50%. */ - result = smbus_write_byte(adt7463, 0x64, 0x40); - result = smbus_write_byte(adt7463, 0x65, 0x40); - result = smbus_write_byte(adt7463, 0x66, 0x40); - - /* Set Tmin to 55C, rather than the default 90C. Above this temperature - * the fans will start blowing harder as temperature increases - * (automatic mode only). - */ - result = smbus_write_byte(adt7463, 0x67, 0x37); - result = smbus_write_byte(adt7463, 0x68, 0x37); - result = smbus_write_byte(adt7463, 0x69, 0x37); - - /* Set THERM limit to 70C, rather than the default 100C. - * The fans will kick in at 100% if the sensors reach this temperature, - * (only in automatic mode, but supposedly even when hardware is - * locked up). This is a failsafe measure. - */ - result = smbus_write_byte(adt7463, 0x6a, 0x46); - result = smbus_write_byte(adt7463, 0x6b, 0x46); - result = smbus_write_byte(adt7463, 0x6c, 0x46); - - /* Remote temperature 1 offset (LSB == 0.25C). */ - result = smbus_write_byte(adt7463, 0x70, 0x02); - - /* Remote temperature 2 offset (LSB == 0.25C). */ - result = smbus_write_byte(adt7463, 0x72, 0x01); - - /* Set TACH measurements to normal (1/second). */ - result = smbus_write_byte(adt7463, 0x78, 0xf0); - - printk(BIOS_DEBUG, "ADT7463 properly initialized\n"); -} - -static struct device_operations adt7463_operations = { - .read_resources = noop_read_resources, - .set_resources = noop_set_resources, - .init = adt7463_init, -}; - -static void enable_dev(struct device *dev) -{ - dev->ops = &adt7463_operations; -} - -struct chip_operations drivers_i2c_adt7463_ops = { - CHIP_NAME("adt7463") - .enable_dev = enable_dev, -}; -- cgit v1.2.3