Commit 67e2f328 authored by Juerg Haefliger's avatar Juerg Haefliger Committed by Mark M. Hoffman

hwmon: (dme1737) group functions logically

Move functions to group them logically. Device and I2C functions go in separate
places. No functional changes (really!).

Signed-off-by: Juerg Haefliger <juergh at gmail.com>
Acked-by: default avatarJean Delvare <khali@linux-fr.org>
Signed-off-by: default avatarMark M. Hoffman <mhoffman@lightlink.com>
parent b237eb25
...@@ -1697,58 +1697,11 @@ static inline void dme1737_sio_outb(int sio_cip, int reg, int val) ...@@ -1697,58 +1697,11 @@ static inline void dme1737_sio_outb(int sio_cip, int reg, int val)
outb(val, sio_cip + 1); outb(val, sio_cip + 1);
} }
static int dme1737_i2c_get_features(int sio_cip, struct dme1737_data *data)
{
int err = 0, reg;
u16 addr;
dme1737_sio_enter(sio_cip);
/* Check device ID
* The DME1737 can return either 0x78 or 0x77 as its device ID. */
reg = dme1737_sio_inb(sio_cip, 0x20);
if (!(reg == 0x77 || reg == 0x78)) {
err = -ENODEV;
goto exit;
}
/* Select logical device A (runtime registers) */
dme1737_sio_outb(sio_cip, 0x07, 0x0a);
/* Get the base address of the runtime registers */
if (!(addr = (dme1737_sio_inb(sio_cip, 0x60) << 8) |
dme1737_sio_inb(sio_cip, 0x61))) {
err = -ENODEV;
goto exit;
}
/* Read the runtime registers to determine which optional features
* are enabled and available. Bits [3:2] of registers 0x43-0x46 are set
* to '10' if the respective feature is enabled. */
if ((inb(addr + 0x43) & 0x0c) == 0x08) { /* fan6 */
data->has_fan |= (1 << 5);
}
if ((inb(addr + 0x44) & 0x0c) == 0x08) { /* pwm6 */
data->has_pwm |= (1 << 5);
}
if ((inb(addr + 0x45) & 0x0c) == 0x08) { /* fan5 */
data->has_fan |= (1 << 4);
}
if ((inb(addr + 0x46) & 0x0c) == 0x08) { /* pwm5 */
data->has_pwm |= (1 << 4);
}
exit:
dme1737_sio_exit(sio_cip);
return err;
}
/* --------------------------------------------------------------------- /* ---------------------------------------------------------------------
* Device detection, registration and initialization * Device detection, registration and initialization
* --------------------------------------------------------------------- */ * --------------------------------------------------------------------- */
static struct i2c_driver dme1737_i2c_driver; static int dme1737_i2c_get_features(int, struct dme1737_data*);
static void dme1737_chmod_file(struct device *dev, static void dme1737_chmod_file(struct device *dev,
struct attribute *attr, mode_t mode) struct attribute *attr, mode_t mode)
...@@ -1967,6 +1920,59 @@ static int dme1737_init_device(struct device *dev) ...@@ -1967,6 +1920,59 @@ static int dme1737_init_device(struct device *dev)
return 0; return 0;
} }
/* ---------------------------------------------------------------------
* I2C device detection and registration
* --------------------------------------------------------------------- */
static struct i2c_driver dme1737_i2c_driver;
static int dme1737_i2c_get_features(int sio_cip, struct dme1737_data *data)
{
int err = 0, reg;
u16 addr;
dme1737_sio_enter(sio_cip);
/* Check device ID
* The DME1737 can return either 0x78 or 0x77 as its device ID. */
reg = dme1737_sio_inb(sio_cip, 0x20);
if (!(reg == 0x77 || reg == 0x78)) {
err = -ENODEV;
goto exit;
}
/* Select logical device A (runtime registers) */
dme1737_sio_outb(sio_cip, 0x07, 0x0a);
/* Get the base address of the runtime registers */
if (!(addr = (dme1737_sio_inb(sio_cip, 0x60) << 8) |
dme1737_sio_inb(sio_cip, 0x61))) {
err = -ENODEV;
goto exit;
}
/* Read the runtime registers to determine which optional features
* are enabled and available. Bits [3:2] of registers 0x43-0x46 are set
* to '10' if the respective feature is enabled. */
if ((inb(addr + 0x43) & 0x0c) == 0x08) { /* fan6 */
data->has_fan |= (1 << 5);
}
if ((inb(addr + 0x44) & 0x0c) == 0x08) { /* pwm6 */
data->has_pwm |= (1 << 5);
}
if ((inb(addr + 0x45) & 0x0c) == 0x08) { /* fan5 */
data->has_fan |= (1 << 4);
}
if ((inb(addr + 0x46) & 0x0c) == 0x08) { /* pwm5 */
data->has_pwm |= (1 << 4);
}
exit:
dme1737_sio_exit(sio_cip);
return err;
}
static int dme1737_i2c_detect(struct i2c_adapter *adapter, int address, static int dme1737_i2c_detect(struct i2c_adapter *adapter, int address,
int kind) int kind)
{ {
...@@ -2087,6 +2093,10 @@ static struct i2c_driver dme1737_i2c_driver = { ...@@ -2087,6 +2093,10 @@ static struct i2c_driver dme1737_i2c_driver = {
.detach_client = dme1737_i2c_detach_client, .detach_client = dme1737_i2c_detach_client,
}; };
/* ---------------------------------------------------------------------
* Module initialization and cleanup
* --------------------------------------------------------------------- */
static int __init dme1737_init(void) static int __init dme1737_init(void)
{ {
return i2c_add_driver(&dme1737_i2c_driver); return i2c_add_driver(&dme1737_i2c_driver);
......
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