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hwmon: (w83627ehf) Clean up probe function

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The probe function has grown pretty large, I think it's time for some
cleanups, starting with these two simple ones:
* Move temp3/in6 check for the W83667HG later in the function, where
  it is done for all other chip types.
* Move temperature register setting to a separate function, to avoid
  code duplication.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
This commit is contained in:
Jean Delvare 2011-11-04 12:00:47 +01:00 committed by Jean Delvare
parent 2265cef275
commit 6ba71de5f8
1 changed files with 32 additions and 21 deletions
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53
drivers/hwmon/w83627ehf.c
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@ -1852,6 +1852,19 @@ static void w82627ehf_swap_tempreg(struct w83627ehf_data *data,
data->reg_temp_config[r2] = tmp;
}
static void __devinit
w83627ehf_set_temp_reg_ehf(struct w83627ehf_data *data, int n_temp)
{
int i;
for (i = 0; i < n_temp; i++) {
data->reg_temp[i] = W83627EHF_REG_TEMP[i];
data->reg_temp_over[i] = W83627EHF_REG_TEMP_OVER[i];
data->reg_temp_hyst[i] = W83627EHF_REG_TEMP_HYST[i];
data->reg_temp_config[i] = W83627EHF_REG_TEMP_CONFIG[i];
}
}
static void __devinit
w83627ehf_check_fan_inputs(const struct w83627ehf_sio_data *sio_data,
struct w83627ehf_data *data)
@ -1955,17 +1968,8 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
|| sio_data->kind == nct6775
|| sio_data->kind == nct6776) ? 3 : 4;
/* Default to 3 temperature inputs, code below will adjust as needed */
data->have_temp = 0x07;
/* Check temp3 configuration bit for 667HG */
if (sio_data->kind == w83667hg) {
u8 reg;
reg = w83627ehf_read_value(data, W83627EHF_REG_TEMP_CONFIG[2]);
if (reg & 0x01)
data->have_temp &= ~(1 << 2);
else
data->in6_skip = 1; /* either temp3 or in6 */
}
/* Deal with temperature register setup first. */
if (sio_data->kind == nct6775 || sio_data->kind == nct6776) {
@ -2042,16 +2046,12 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
} else if (sio_data->kind == w83667hg_b) {
u8 reg;
w83627ehf_set_temp_reg_ehf(data, 4);
/*
* Temperature sources are selected with bank 0, registers 0x49
* and 0x4a.
*/
for (i = 0; i < ARRAY_SIZE(W83627EHF_REG_TEMP); i++) {
data->reg_temp[i] = W83627EHF_REG_TEMP[i];
data->reg_temp_over[i] = W83627EHF_REG_TEMP_OVER[i];
data->reg_temp_hyst[i] = W83627EHF_REG_TEMP_HYST[i];
data->reg_temp_config[i] = W83627EHF_REG_TEMP_CONFIG[i];
}
reg = w83627ehf_read_value(data, 0x4a);
data->temp_src[0] = reg >> 5;
reg = w83627ehf_read_value(data, 0x49);
@ -2086,12 +2086,23 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
data->temp_label = w83667hg_b_temp_label;
} else {
w83627ehf_set_temp_reg_ehf(data, 3);
/* Temperature sources are fixed */
for (i = 0; i < 3; i++) {
data->reg_temp[i] = W83627EHF_REG_TEMP[i];
data->reg_temp_over[i] = W83627EHF_REG_TEMP_OVER[i];
data->reg_temp_hyst[i] = W83627EHF_REG_TEMP_HYST[i];
data->reg_temp_config[i] = W83627EHF_REG_TEMP_CONFIG[i];
if (sio_data->kind == w83667hg) {
u8 reg;
/*
* Chip supports either AUXTIN or VIN3. Try to find
* out which one.
*/
reg = w83627ehf_read_value(data,
W83627EHF_REG_TEMP_CONFIG[2]);
if (reg & 0x01)
data->have_temp &= ~(1 << 2);
else
data->in6_skip = 1;
}
}