X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fhwmon%2Fw83627hf.c;h=71fb7f1af8f5a44f470552347ba30db1ec4f888b;hb=f6c27fc17c5e575c5471fb344bdbd5f5f6072136;hp=7ea441d4da63ecb9ba65b8b2be1387aa6f9179e5;hpb=ccf18968b1bbc2fb117190a1984ac2a826dac228;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c
index 7ea441d4da6..71fb7f1af8f 100644
--- a/drivers/hwmon/w83627hf.c
+++ b/drivers/hwmon/w83627hf.c
@@ -28,6 +28,7 @@
     w83627hf	9	3	2	3	0x20	0x5ca3	no	yes(LPC)
     w83627thf	7	3	3	3	0x90	0x5ca3	no	yes(LPC)
     w83637hf	7	3	3	3	0x80	0x5ca3	no	yes(LPC)
+    w83687thf	7	3	3	3	0x90	0x5ca3	no	yes(LPC)
     w83697hf	8	2	2	2	0x60	0x5ca3	no	yes(LPC)
 
     For other winbond chips, and for i2c support in the above chips,
@@ -46,6 +47,7 @@
 #include <linux/hwmon.h>
 #include <linux/hwmon-vid.h>
 #include <linux/err.h>
+#include <linux/mutex.h>
 #include <asm/io.h>
 #include "lm75.h"
 
@@ -62,7 +64,7 @@ MODULE_PARM_DESC(force_i2c,
 static unsigned short address;
 
 /* Insmod parameters */
-enum chips { any_chip, w83627hf, w83627thf, w83697hf, w83637hf };
+enum chips { any_chip, w83627hf, w83627thf, w83697hf, w83637hf, w83687thf };
 
 static int reset;
 module_param(reset, bool, 0);
@@ -100,6 +102,10 @@ static int VAL;		/* The value to read/write */
 #define W83627THF_GPIO5_IOSR	0xf3 /* w83627thf only */
 #define W83627THF_GPIO5_DR	0xf4 /* w83627thf only */
 
+#define W83687THF_VID_EN	0x29 /* w83687thf only */
+#define W83687THF_VID_CFG	0xF0 /* w83687thf only */
+#define W83687THF_VID_DATA	0xF1 /* w83687thf only */
+
 static inline void
 superio_outb(int reg, int val)
 {
@@ -138,6 +144,7 @@ superio_exit(void)
 #define W627THF_DEVID 0x82
 #define W697_DEVID 0x60
 #define W637_DEVID 0x70
+#define W687THF_DEVID 0x85
 #define WINB_ACT_REG 0x30
 #define WINB_BASE_REG 0x60
 /* Constants specified below */
@@ -201,11 +208,11 @@ superio_exit(void)
 #define W83627HF_REG_PWM1 0x5A
 #define W83627HF_REG_PWM2 0x5B
 
-#define W83627THF_REG_PWM1		0x01	/* 697HF and 637HF too */
-#define W83627THF_REG_PWM2		0x03	/* 697HF and 637HF too */
-#define W83627THF_REG_PWM3		0x11	/* 637HF too */
+#define W83627THF_REG_PWM1		0x01	/* 697HF/637HF/687THF too */
+#define W83627THF_REG_PWM2		0x03	/* 697HF/637HF/687THF too */
+#define W83627THF_REG_PWM3		0x11	/* 637HF/687THF too */
 
-#define W83627THF_REG_VRM_OVT_CFG 	0x18	/* 637HF too */
+#define W83627THF_REG_VRM_OVT_CFG 	0x18	/* 637HF/687THF too */
 
 static const u8 regpwm_627hf[] = { W83627HF_REG_PWM1, W83627HF_REG_PWM2 };
 static const u8 regpwm[] = { W83627THF_REG_PWM1, W83627THF_REG_PWM2,
@@ -285,10 +292,10 @@ static inline u8 DIV_TO_REG(long val)
 struct w83627hf_data {
 	struct i2c_client client;
 	struct class_device *class_dev;
-	struct semaphore lock;
+	struct mutex lock;
 	enum chips type;
 
-	struct semaphore update_lock;
+	struct mutex update_lock;
 	char valid;		/* !=0 if following fields are valid */
 	unsigned long last_updated;	/* In jiffies */
 
@@ -318,16 +325,15 @@ struct w83627hf_data {
 				   Default = 3435.
 				   Other Betas unimplemented */
 	u8 vrm;
-	u8 vrm_ovt;		/* Register value, 627thf & 637hf only */
+	u8 vrm_ovt;		/* Register value, 627THF/637HF/687THF only */
 };
 
 
 static int w83627hf_detect(struct i2c_adapter *adapter);
 static int w83627hf_detach_client(struct i2c_client *client);
 
-static int w83627hf_read_value(struct i2c_client *client, u16 register);
-static int w83627hf_write_value(struct i2c_client *client, u16 register,
-			       u16 value);
+static int w83627hf_read_value(struct i2c_client *client, u16 reg);
+static int w83627hf_write_value(struct i2c_client *client, u16 reg, u16 value);
 static struct w83627hf_data *w83627hf_update_device(struct device *dev);
 static void w83627hf_init_client(struct i2c_client *client);
 
@@ -360,12 +366,12 @@ store_in_##reg (struct device *dev, const char *buf, size_t count, int nr) \
 	 \
 	val = simple_strtoul(buf, NULL, 10); \
 	 \
-	down(&data->update_lock); \
+	mutex_lock(&data->update_lock); \
 	data->in_##reg[nr] = IN_TO_REG(val); \
 	w83627hf_write_value(client, W83781D_REG_IN_##REG(nr), \
 			    data->in_##reg[nr]); \
 	 \
-	up(&data->update_lock); \
+	mutex_unlock(&data->update_lock); \
 	return count; \
 }
 store_in_reg(MIN, min)
@@ -413,7 +419,8 @@ static ssize_t show_in_0(struct w83627hf_data *data, char *buf, u8 reg)
 	long in0;
 
 	if ((data->vrm_ovt & 0x01) &&
-		(w83627thf == data->type || w83637hf == data->type))
+		(w83627thf == data->type || w83637hf == data->type
+		 || w83687thf == data->type))
 
 		/* use VRM9 calculation */
 		in0 = (long)((reg * 488 + 70000 + 50) / 100);
@@ -451,10 +458,11 @@ static ssize_t store_regs_in_min0(struct device *dev, struct device_attribute *a
 
 	val = simple_strtoul(buf, NULL, 10);
 
-	down(&data->update_lock);
+	mutex_lock(&data->update_lock);
 	
 	if ((data->vrm_ovt & 0x01) &&
-		(w83627thf == data->type || w83637hf == data->type))
+		(w83627thf == data->type || w83637hf == data->type
+		 || w83687thf == data->type))
 
 		/* use VRM9 calculation */
 		data->in_min[0] =
@@ -465,7 +473,7 @@ static ssize_t store_regs_in_min0(struct device *dev, struct device_attribute *a
 		data->in_min[0] = IN_TO_REG(val);
 
 	w83627hf_write_value(client, W83781D_REG_IN_MIN(0), data->in_min[0]);
-	up(&data->update_lock);
+	mutex_unlock(&data->update_lock);
 	return count;
 }
 
@@ -478,10 +486,11 @@ static ssize_t store_regs_in_max0(struct device *dev, struct device_attribute *a
 
 	val = simple_strtoul(buf, NULL, 10);
 
-	down(&data->update_lock);
+	mutex_lock(&data->update_lock);
 
 	if ((data->vrm_ovt & 0x01) &&
-		(w83627thf == data->type || w83637hf == data->type))
+		(w83627thf == data->type || w83637hf == data->type
+		 || w83687thf == data->type))
 		
 		/* use VRM9 calculation */
 		data->in_max[0] =
@@ -492,7 +501,7 @@ static ssize_t store_regs_in_max0(struct device *dev, struct device_attribute *a
 		data->in_max[0] = IN_TO_REG(val);
 
 	w83627hf_write_value(client, W83781D_REG_IN_MAX(0), data->in_max[0]);
-	up(&data->update_lock);
+	mutex_unlock(&data->update_lock);
 	return count;
 }
 
@@ -529,13 +538,13 @@ store_fan_min(struct device *dev, const char *buf, size_t count, int nr)
 
 	val = simple_strtoul(buf, NULL, 10);
 
-	down(&data->update_lock);
+	mutex_lock(&data->update_lock);
 	data->fan_min[nr - 1] =
 	    FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr - 1]));
 	w83627hf_write_value(client, W83781D_REG_FAN_MIN(nr),
 			    data->fan_min[nr - 1]);
 
-	up(&data->update_lock);
+	mutex_unlock(&data->update_lock);
 	return count;
 }
 
@@ -597,7 +606,7 @@ store_temp_##reg (struct device *dev, const char *buf, size_t count, int nr) \
 	 \
 	val = simple_strtoul(buf, NULL, 10); \
 	 \
-	down(&data->update_lock); \
+	mutex_lock(&data->update_lock); \
 	 \
 	if (nr >= 2) {	/* TEMP2 and TEMP3 */ \
 		data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \
@@ -609,7 +618,7 @@ store_temp_##reg (struct device *dev, const char *buf, size_t count, int nr) \
 			data->temp_##reg); \
 	} \
 	 \
-	up(&data->update_lock); \
+	mutex_unlock(&data->update_lock); \
 	return count; \
 }
 store_temp_reg(OVER, max);
@@ -718,7 +727,7 @@ store_beep_reg(struct device *dev, const char *buf, size_t count,
 
 	val = simple_strtoul(buf, NULL, 10);
 
-	down(&data->update_lock);
+	mutex_lock(&data->update_lock);
 
 	if (update_mask == BEEP_MASK) {	/* We are storing beep_mask */
 		data->beep_mask = BEEP_MASK_TO_REG(val);
@@ -736,7 +745,7 @@ store_beep_reg(struct device *dev, const char *buf, size_t count,
 	w83627hf_write_value(client, W83781D_REG_BEEP_INTS2,
 			    val2 | data->beep_enable << 7);
 
-	up(&data->update_lock);
+	mutex_unlock(&data->update_lock);
 	return count;
 }
 
@@ -783,7 +792,7 @@ store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr)
 	u8 reg;
 	unsigned long val = simple_strtoul(buf, NULL, 10);
 
-	down(&data->update_lock);
+	mutex_lock(&data->update_lock);
 
 	/* Save fan_min */
 	min = FAN_FROM_REG(data->fan_min[nr],
@@ -805,7 +814,7 @@ store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr)
 	data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
 	w83627hf_write_value(client, W83781D_REG_FAN_MIN(nr+1), data->fan_min[nr]);
 
-	up(&data->update_lock);
+	mutex_unlock(&data->update_lock);
 	return count;
 }
 
@@ -848,7 +857,7 @@ store_pwm_reg(struct device *dev, const char *buf, size_t count, int nr)
 
 	val = simple_strtoul(buf, NULL, 10);
 
-	down(&data->update_lock);
+	mutex_lock(&data->update_lock);
 
 	if (data->type == w83627thf) {
 		/* bits 0-3 are reserved  in 627THF */
@@ -865,7 +874,7 @@ store_pwm_reg(struct device *dev, const char *buf, size_t count, int nr)
 				     data->pwm[nr - 1]);
 	}
 
-	up(&data->update_lock);
+	mutex_unlock(&data->update_lock);
 	return count;
 }
 
@@ -907,7 +916,7 @@ store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr)
 
 	val = simple_strtoul(buf, NULL, 10);
 
-	down(&data->update_lock);
+	mutex_lock(&data->update_lock);
 
 	switch (val) {
 	case 1:		/* PII/Celeron diode */
@@ -941,7 +950,7 @@ store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr)
 		break;
 	}
 
-	up(&data->update_lock);
+	mutex_unlock(&data->update_lock);
 	return count;
 }
 
@@ -980,7 +989,8 @@ static int __init w83627hf_find(int sioaddr, unsigned short *addr)
 	if(val != W627_DEVID &&
 	   val != W627THF_DEVID &&
 	   val != W697_DEVID &&
-	   val != W637_DEVID) {
+	   val != W637_DEVID &&
+	   val != W687THF_DEVID) {
 		superio_exit();
 		return -ENODEV;
 	}
@@ -1034,6 +1044,8 @@ static int w83627hf_detect(struct i2c_adapter *adapter)
 		kind = w83627thf;
 	else if(val == W637_DEVID)
 		kind = w83637hf;
+	else if (val == W687THF_DEVID)
+		kind = w83687thf;
 	else {
 		dev_info(&adapter->dev,
 			 "Unsupported chip (dev_id=0x%02X).\n", val);
@@ -1057,7 +1069,7 @@ static int w83627hf_detect(struct i2c_adapter *adapter)
 	new_client = &data->client;
 	i2c_set_clientdata(new_client, data);
 	new_client->addr = address;
-	init_MUTEX(&data->lock);
+	mutex_init(&data->lock);
 	new_client->adapter = adapter;
 	new_client->driver = &w83627hf_driver;
 	new_client->flags = 0;
@@ -1071,13 +1083,15 @@ static int w83627hf_detect(struct i2c_adapter *adapter)
 		client_name = "w83697hf";
 	} else if (kind == w83637hf) {
 		client_name = "w83637hf";
+	} else if (kind == w83687thf) {
+		client_name = "w83687thf";
 	}
 
 	/* Fill in the remaining client fields and put into the global list */
 	strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
 	data->type = kind;
 	data->valid = 0;
-	init_MUTEX(&data->update_lock);
+	mutex_init(&data->update_lock);
 
 	/* Tell the I2C layer a new client has arrived */
 	if ((err = i2c_attach_client(new_client)))
@@ -1106,7 +1120,7 @@ static int w83627hf_detect(struct i2c_adapter *adapter)
 	device_create_file_in(new_client, 2);
 	device_create_file_in(new_client, 3);
 	device_create_file_in(new_client, 4);
-	if (kind != w83627thf && kind != w83637hf) {
+	if (kind == w83627hf || kind == w83697hf) {
 		device_create_file_in(new_client, 5);
 		device_create_file_in(new_client, 6);
 	}
@@ -1139,7 +1153,7 @@ static int w83627hf_detect(struct i2c_adapter *adapter)
 
 	device_create_file_pwm(new_client, 1);
 	device_create_file_pwm(new_client, 2);
-	if (kind == w83627thf || kind == w83637hf)
+	if (kind == w83627thf || kind == w83637hf || kind == w83687thf)
 		device_create_file_pwm(new_client, 3);
 
 	device_create_file_sensor(new_client, 1);
@@ -1187,7 +1201,7 @@ static int w83627hf_read_value(struct i2c_client *client, u16 reg)
 	struct w83627hf_data *data = i2c_get_clientdata(client);
 	int res, word_sized;
 
-	down(&data->lock);
+	mutex_lock(&data->lock);
 	word_sized = (((reg & 0xff00) == 0x100)
 		   || ((reg & 0xff00) == 0x200))
 		  && (((reg & 0x00ff) == 0x50)
@@ -1213,7 +1227,7 @@ static int w83627hf_read_value(struct i2c_client *client, u16 reg)
 		       client->addr + W83781D_ADDR_REG_OFFSET);
 		outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
 	}
-	up(&data->lock);
+	mutex_unlock(&data->lock);
 	return res;
 }
 
@@ -1247,12 +1261,39 @@ exit:
 	return res;
 }
 
+static int w83687thf_read_vid(struct i2c_client *client)
+{
+	int res = 0xff;
+
+	superio_enter();
+	superio_select(W83627HF_LD_HWM);
+
+	/* Make sure these GPIO pins are enabled */
+	if (!(superio_inb(W83687THF_VID_EN) & (1 << 2))) {
+		dev_dbg(&client->dev, "VID disabled, no VID function\n");
+		goto exit;
+	}
+
+	/* Make sure the pins are configured for input */
+	if (!(superio_inb(W83687THF_VID_CFG) & (1 << 4))) {
+		dev_dbg(&client->dev, "VID configured as output, "
+			"no VID function\n");
+		goto exit;
+	}
+
+	res = superio_inb(W83687THF_VID_DATA) & 0x3f;
+
+exit:
+	superio_exit();
+	return res;
+}
+
 static int w83627hf_write_value(struct i2c_client *client, u16 reg, u16 value)
 {
 	struct w83627hf_data *data = i2c_get_clientdata(client);
 	int word_sized;
 
-	down(&data->lock);
+	mutex_lock(&data->lock);
 	word_sized = (((reg & 0xff00) == 0x100)
 		   || ((reg & 0xff00) == 0x200))
 		  && (((reg & 0x00ff) == 0x53)
@@ -1277,7 +1318,7 @@ static int w83627hf_write_value(struct i2c_client *client, u16 reg, u16 value)
 		       client->addr + W83781D_ADDR_REG_OFFSET);
 		outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
 	}
-	up(&data->lock);
+	mutex_unlock(&data->lock);
 	return 0;
 }
 
@@ -1324,10 +1365,13 @@ static void w83627hf_init_client(struct i2c_client *client)
 		data->vid = (lo & 0x0f) | ((hi & 0x01) << 4);
 	} else if (w83627thf == data->type) {
 		data->vid = w83627thf_read_gpio5(client);
+	} else if (w83687thf == data->type) {
+		data->vid = w83687thf_read_vid(client);
 	}
 
 	/* Read VRM & OVT Config only once */
-	if (w83627thf == data->type || w83637hf == data->type) {
+	if (w83627thf == data->type || w83637hf == data->type
+	 || w83687thf == data->type) {
 		data->vrm_ovt = 
 			w83627hf_read_value(client, W83627THF_REG_VRM_OVT_CFG);
 	}
@@ -1387,14 +1431,14 @@ static struct w83627hf_data *w83627hf_update_device(struct device *dev)
 	struct w83627hf_data *data = i2c_get_clientdata(client);
 	int i;
 
-	down(&data->update_lock);
+	mutex_lock(&data->update_lock);
 
 	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
 	    || !data->valid) {
 		for (i = 0; i <= 8; i++) {
 			/* skip missing sensors */
 			if (((data->type == w83697hf) && (i == 1)) ||
-			    ((data->type == w83627thf || data->type == w83637hf)
+			    ((data->type != w83627hf && data->type != w83697hf)
 			    && (i == 5 || i == 6)))
 				continue;
 			data->in[i] =
@@ -1470,7 +1514,7 @@ static struct w83627hf_data *w83627hf_update_device(struct device *dev)
 		data->valid = 1;
 	}
 
-	up(&data->update_lock);
+	mutex_unlock(&data->update_lock);
 
 	return data;
 }