hwmon: (w83627ehf) Add support for W83667HG (237c8d2f) · Commits · EulixOS / Software / Kernel

Documentation/hwmon/w83627ehf

+20 −9

Original line number	Diff line number	Diff line
		@@ -2,30 +2,40 @@ Kernel driver w83627ehf
		=======================

		Supported chips:
		* Winbond W83627EHF/EHG/DHG (ISA access ONLY)
		* Winbond W83627EHF/EHG (ISA access ONLY)
		Prefix: 'w83627ehf'
		Addresses scanned: ISA address retrieved from Super I/O registers
		Datasheet:
		http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83627EHF_%20W83627EHGb.pdf
		DHG datasheet confidential.
		http://www.nuvoton.com.tw/NR/rdonlyres/A6A258F0-F0C9-4F97-81C0-C4D29E7E943E/0/W83627EHF.pdf
		* Winbond W83627DHG
		Prefix: 'w83627dhg'
		Addresses scanned: ISA address retrieved from Super I/O registers
		Datasheet:
		http://www.nuvoton.com.tw/NR/rdonlyres/7885623D-A487-4CF9-A47F-30C5F73D6FE6/0/W83627DHG.pdf
		* Winbond W83667HG
		Prefix: 'w83667hg'
		Addresses scanned: ISA address retrieved from Super I/O registers
		Datasheet: not available

		Authors:
		Jean Delvare <khali@linux-fr.org>
		Yuan Mu (Winbond)
		Rudolf Marek <r.marek@assembler.cz>
		David Hubbard <david.c.hubbard@gmail.com>
		Gong Jun <JGong@nuvoton.com>

		Description
		-----------

		This driver implements support for the Winbond W83627EHF, W83627EHG, and
		W83627DHG super I/O chips. We will refer to them collectively as Winbond chips.
		This driver implements support for the Winbond W83627EHF, W83627EHG,
		W83627DHG and W83667HG super I/O chips. We will refer to them collectively
		as Winbond chips.

		The chips implement three temperature sensors, five fan rotation
		speed sensors, ten analog voltage sensors (only nine for the 627DHG), one
		VID (6 pins for the 627EHF/EHG, 8 pins for the 627DHG), alarms with beep
		warnings (control unimplemented), and some automatic fan regulation
		strategies (plus manual fan control mode).
		VID (6 pins for the 627EHF/EHG, 8 pins for the 627DHG and 667HG), alarms
		with beep warnings (control unimplemented), and some automatic fan
		regulation strategies (plus manual fan control mode).

		Temperatures are measured in degrees Celsius and measurement resolution is 1
		degC for temp1 and 0.5 degC for temp2 and temp3. An alarm is triggered when
		@@ -54,7 +64,8 @@ follows:
		temp1 -> pwm1
		temp2 -> pwm2
		temp3 -> pwm3
		prog -> pwm4 (the programmable setting is not supported by the driver)
		prog -> pwm4 (not on 667HG; the programmable setting is not supported by
		the driver)

		/sys files
		----------

drivers/hwmon/Kconfig

+3 −1

Original line number	Diff line number	Diff line
		@@ -827,7 +827,7 @@ config SENSORS_W83627HF
		will be called w83627hf.

		config SENSORS_W83627EHF
		tristate "Winbond W83627EHF/DHG"
		tristate "Winbond W83627EHF/EHG/DHG, W83667HG"
		select HWMON_VID
		help
		If you say yes here you get support for the hardware
		@@ -838,6 +838,8 @@ config SENSORS_W83627EHF
		chip suited for specific Intel processors that use PECI such as
		the Core 2 Duo.

		This driver also supports the W83667HG chip.

		This driver can also be built as a module. If so, the module
		will be called w83627ehf.

drivers/hwmon/w83627ehf.c

+69 −37

Original line number	Diff line number	Diff line
		@@ -36,6 +36,7 @@
		w83627ehf 10 5 4 3 0x8850 0x88 0x5ca3
		0x8860 0xa1
		w83627dhg 9 5 4 3 0xa020 0xc1 0x5ca3
		w83667hg 9 5 3 3 0xa510 0xc1 0x5ca3
		*/

		#include <linux/module.h>
		@@ -52,12 +53,13 @@
		#include <asm/io.h>
		#include "lm75.h"

		enum kinds { w83627ehf, w83627dhg };
		enum kinds { w83627ehf, w83627dhg, w83667hg };

		/* used to set data->name = w83627ehf_device_names[data->sio_kind] */
		static const char * w83627ehf_device_names[] = {
		"w83627ehf",
		"w83627dhg",
		"w83667hg",
		};

		static unsigned short force_id;
		@@ -71,6 +73,7 @@ MODULE_PARM_DESC(force_id, "Override the detected device ID");
		*/

		#define W83627EHF_LD_HWM 0x0b
		#define W83667HG_LD_VID 0x0d

		#define SIO_REG_LDSEL 0x07 /* Logical device select */
		#define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
		@@ -83,6 +86,7 @@ MODULE_PARM_DESC(force_id, "Override the detected device ID");
		#define SIO_W83627EHF_ID 0x8850
		#define SIO_W83627EHG_ID 0x8860
		#define SIO_W83627DHG_ID 0xa020
		#define SIO_W83667HG_ID 0xa510
		#define SIO_ID_MASK 0xFFF0

		static inline void
		@@ -289,6 +293,7 @@ struct w83627ehf_data {
		u8 pwm_mode[4]; /* 0->DC variable voltage, 1->PWM variable duty cycle */
		u8 pwm_enable[4]; /* 1->manual
		2->thermal cruise (also called SmartFan I) */
		u8 pwm_num; /* number of pwm */
		u8 pwm[4];
		u8 target_temp[4];
		u8 tolerance[4];
		@@ -1192,7 +1197,7 @@ static void w83627ehf_device_remove_files(struct device *dev)
		device_remove_file(dev, &sda_fan_div[i].dev_attr);
		device_remove_file(dev, &sda_fan_min[i].dev_attr);
		}
		for (i = 0; i < 4; i++) {
		for (i = 0; i < data->pwm_num; i++) {
		device_remove_file(dev, &sda_pwm[i].dev_attr);
		device_remove_file(dev, &sda_pwm_mode[i].dev_attr);
		device_remove_file(dev, &sda_pwm_enable[i].dev_attr);
		@@ -1272,8 +1277,10 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
		data->name = w83627ehf_device_names[sio_data->kind];
		platform_set_drvdata(pdev, data);

		/* 627EHG and 627EHF have 10 voltage inputs; DHG has 9 */
		data->in_num = (sio_data->kind == w83627dhg) ? 9 : 10;
		/* 627EHG and 627EHF have 10 voltage inputs; 627DHG and 667HG have 9 */
		data->in_num = (sio_data->kind == w83627ehf) ? 10 : 9;
		/* 667HG has 3 pwms */
		data->pwm_num = (sio_data->kind == w83667hg) ? 3 : 4;

		/* Initialize the chip */
		w83627ehf_init_device(data);
		@@ -1281,29 +1288,44 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
		data->vrm = vid_which_vrm();
		superio_enter(sio_data->sioreg);
		/* Read VID value */
		if (sio_data->kind == w83667hg) {
		/* W83667HG has different pins for VID input and output, so
		we can get the VID input values directly at logical device D
		0xe3. */
		superio_select(sio_data->sioreg, W83667HG_LD_VID);
		data->vid = superio_inb(sio_data->sioreg, 0xe3);
		err = device_create_file(dev, &dev_attr_cpu0_vid);
		if (err)
		goto exit_release;
		} else {
		superio_select(sio_data->sioreg, W83627EHF_LD_HWM);
		if (superio_inb(sio_data->sioreg, SIO_REG_VID_CTRL) & 0x80) {
		/* Set VID input sensibility if needed. In theory the BIOS
		should have set it, but in practice it's not always the
		case. We only do it for the W83627EHF/EHG because the
		W83627DHG is more complex in this respect. */
		/* Set VID input sensibility if needed. In theory the
		BIOS should have set it, but in practice it's not
		always the case. We only do it for the W83627EHF/EHG
		because the W83627DHG is more complex in this
		respect. */
		if (sio_data->kind == w83627ehf) {
		en_vrm10 = superio_inb(sio_data->sioreg,
		SIO_REG_EN_VRM10);
		if ((en_vrm10 & 0x08) && data->vrm == 90) {
		dev_warn(dev, "Setting VID input voltage to "
		"TTL\n");
		superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
		dev_warn(dev, "Setting VID input "
		"voltage to TTL\n");
		superio_outb(sio_data->sioreg,
		SIO_REG_EN_VRM10,
		en_vrm10 & ~0x08);
		} else if (!(en_vrm10 & 0x08) && data->vrm == 100) {
		dev_warn(dev, "Setting VID input voltage to "
		"VRM10\n");
		superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10,
		} else if (!(en_vrm10 & 0x08)
		&& data->vrm == 100) {
		dev_warn(dev, "Setting VID input "
		"voltage to VRM10\n");
		superio_outb(sio_data->sioreg,
		SIO_REG_EN_VRM10,
		en_vrm10 \| 0x08);
		}
		}

		data->vid = superio_inb(sio_data->sioreg, SIO_REG_VID_DATA);
		data->vid = superio_inb(sio_data->sioreg,
		SIO_REG_VID_DATA);
		if (sio_data->kind == w83627ehf) /* 6 VID pins only */
		data->vid &= 0x3f;

		@@ -1314,11 +1336,16 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
		dev_info(dev, "VID pins in output mode, CPU VID not "
		"available\n");
		}
		}

		/* fan4 and fan5 share some pins with the GPIO and serial flash */

		fan5pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x2);
		fan4pin = !(superio_inb(sio_data->sioreg, 0x29) & 0x6);
		if (sio_data->kind == w83667hg) {
		fan5pin = superio_inb(sio_data->sioreg, 0x27) & 0x20;
		fan4pin = superio_inb(sio_data->sioreg, 0x27) & 0x40;
		} else {
		fan5pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x02);
		fan4pin = !(superio_inb(sio_data->sioreg, 0x29) & 0x06);
		}
		superio_exit(sio_data->sioreg);

		/* It looks like fan4 and fan5 pins can be alternatively used
		@@ -1344,7 +1371,7 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
		goto exit_remove;

		/* if fan4 is enabled create the sf3 files for it */
		if (data->has_fan & (1 << 3))
		if ((data->has_fan & (1 << 3)) && data->pwm_num >= 4)
		for (i = 0; i < ARRAY_SIZE(sda_sf3_arrays_fan4); i++) {
		if ((err = device_create_file(dev,
		&sda_sf3_arrays_fan4[i].dev_attr)))
		@@ -1372,7 +1399,7 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
		\|\| (err = device_create_file(dev,
		&sda_fan_min[i].dev_attr)))
		goto exit_remove;
		if (i < 4 && /* w83627ehf only has 4 pwm */
		if (i < data->pwm_num &&
		((err = device_create_file(dev,
		&sda_pwm[i].dev_attr))
		\|\| (err = device_create_file(dev,
		@@ -1442,6 +1469,7 @@ static int __init w83627ehf_find(int sioaddr, unsigned short *addr,
		static const char __initdata sio_name_W83627EHF[] = "W83627EHF";
		static const char __initdata sio_name_W83627EHG[] = "W83627EHG";
		static const char __initdata sio_name_W83627DHG[] = "W83627DHG";
		static const char __initdata sio_name_W83667HG[] = "W83667HG";

		u16 val;
		const char *sio_name;
		@@ -1466,6 +1494,10 @@ static int __init w83627ehf_find(int sioaddr, unsigned short *addr,
		sio_data->kind = w83627dhg;
		sio_name = sio_name_W83627DHG;
		break;
		case SIO_W83667HG_ID:
		sio_data->kind = w83667hg;
		sio_name = sio_name_W83667HG;
		break;
		default:
		if (val != 0xffff)
		pr_debug(DRVNAME ": unsupported chip ID: 0x%04x\n",