Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
drivers/hwmon/w83792d.c | 124 ++++++++++++++++++++++++++---------------------
1 files changed, 69 insertions(+), 55 deletions(-)
diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c
index e356618..90f81a3 100644
--- a/drivers/hwmon/w83792d.c
+++ b/drivers/hwmon/w83792d.c
@@ -1,39 +1,39 @@
/*
- w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
- monitoring
- Copyright (C) 2004, 2005 Winbond Electronics Corp.
- Chunhao Huang <DZShen@xxxxxxxxxxxxxx>,
- Rudolf Marek <r.marek@xxxxxxxxxxxx>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Note:
- 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
- 2. This driver is only for Winbond W83792D C version device, there
- are also some motherboards with B version W83792D device. The
- calculation method to in6-in7(measured value, limits) is a little
- different between C and B version. C or B version can be identified
- by CR[0x49h].
-*/
+ * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (C) 2004, 2005 Winbond Electronics Corp.
+ * Chunhao Huang <DZShen@xxxxxxxxxxxxxx>,
+ * Rudolf Marek <r.marek@xxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Note:
+ * 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
+ * 2. This driver is only for Winbond W83792D C version device, there
+ * are also some motherboards with B version W83792D device. The
+ * calculation method to in6-in7(measured value, limits) is a little
+ * different between C and B version. C or B version can be identified
+ * by CR[0x49h].
+ */
/*
- Supports following chips:
-
- Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
- w83792d 9 7 7 3 0x7a 0x5ca3 yes no
-*/
+ * Supports following chips:
+ *
+ * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
+ * w83792d 9 7 7 3 0x7a 0x5ca3 yes no
+ */
#include <linux/module.h>
#include <linux/init.h>
@@ -218,10 +218,12 @@ static const u8 W83792D_REG_LEVELS[3][4] = {
#define W83792D_REG_VBAT 0x5D
#define W83792D_REG_I2C_ADDR 0x48
-/* Conversions. Rounding and limit checking is only done on the TO_REG
- variants. Note that you should be a bit careful with which arguments
- these macros are called: arguments may be evaluated more than once.
- Fixing this is just not worth it. */
+/*
+ * Conversions. Rounding and limit checking is only done on the TO_REG
+ * variants. Note that you should be a bit careful with which arguments
+ * these macros are called: arguments may be evaluated more than once.
+ * Fixing this is just not worth it.
+ */
#define IN_FROM_REG(nr, val) (((nr) <= 1) ? ((val) * 2) : \
((((nr) == 6) || ((nr) == 7)) ? ((val) * 6) : ((val) * 4)))
#define IN_TO_REG(nr, val) (((nr) <= 1) ? ((val) / 2) : \
@@ -287,8 +289,10 @@ struct w83792d_data {
u8 temp1[3]; /* current, over, thyst */
u8 temp_add[2][6]; /* Register value */
u8 fan_div[7]; /* Register encoding, shifted right */
- u8 pwm[7]; /* We only consider the first 3 set of pwm,
- although 792 chip has 7 set of pwm. */
+ u8 pwm[7]; /*
+ * We only consider the first 3 set of pwm,
+ * although 792 chip has 7 set of pwm.
+ */
u8 pwmenable[3];
u32 alarms; /* realtime status register encoding,combined */
u8 chassis; /* Chassis status */
@@ -336,9 +340,11 @@ static inline long in_count_from_reg(int nr, struct w83792d_data *data)
return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03);
}
-/* The SMBus locks itself. The Winbond W83792D chip has a bank register,
- but the driver only accesses registers in bank 0, so we don't have
- to switch banks and lock access between switches. */
+/*
+ * The SMBus locks itself. The Winbond W83792D chip has a bank register,
+ * but the driver only accesses registers in bank 0, so we don't have
+ * to switch banks and lock access between switches.
+ */
static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
{
return i2c_smbus_read_byte_data(client, reg);
@@ -450,10 +456,12 @@ show_fan_div(struct device *dev, struct device_attribute *attr,
return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
}
-/* Note: we save and restore the fan minimum here, because its value is
- determined in part by the fan divisor. This follows the principle of
- least surprise; the user doesn't expect the fan minimum to change just
- because the divisor changed. */
+/*
+ * Note: we save and restore the fan minimum here, because its value is
+ * determined in part by the fan divisor. This follows the principle of
+ * least surprise; the user doesn't expect the fan minimum to change just
+ * because the divisor changed.
+ */
static ssize_t
store_fan_div(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
@@ -1383,8 +1391,10 @@ w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
((val1 & 0x80) && val2 != 0x5c))
return -ENODEV;
}
- /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
- should match */
+ /*
+ * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
+ * should match
+ */
if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
return -ENODEV;
@@ -1440,8 +1450,10 @@ w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
if (err)
goto ERROR3;
- /* Read GPIO enable register to check if pins for fan 4,5 are used as
- GPIO */
+ /*
+ * Read GPIO enable register to check if pins for fan 4,5 are used as
+ * GPIO
+ */
val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
if (!(val1 & 0x40)) {
@@ -1521,11 +1533,13 @@ w83792d_init_client(struct i2c_client *client)
if (init)
w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
- /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
- W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
- vin0/vin1 can be modified by user;
- W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
- vin0/vin1 auto-updated, can NOT be modified by user. */
+ /*
+ * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
+ * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
+ * vin0/vin1 can be modified by user;
+ * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
+ * vin0/vin1 auto-updated, can NOT be modified by user.
+ */
vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
w83792d_write_value(client, W83792D_REG_VID_IN_B,
vid_in_b & 0xbf);
--
1.7.5.4
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