pwmX_mode and pwmX_enable are not initialized if no platform data is provided to
the driver. Read chip configuration at driver initialization time and initialize
attributes to reflect chip configuration.
Cc: Riku Voipio <riku.voipio@xxxxxx>
Signed-off-by: Guenter Roeck <guenter.roeck@xxxxxxxxxxxx>
---
drivers/hwmon/f75375s.c | 28 ++++++++++++++++++++++++++--
1 files changed, 26 insertions(+), 2 deletions(-)
diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c
index 777a665..9c3f078 100644
--- a/drivers/hwmon/f75375s.c
+++ b/drivers/hwmon/f75375s.c
@@ -652,6 +652,31 @@ static void f75375_init(struct i2c_client *client, struct f75375_data *data,
struct f75375s_platform_data *f75375s_pdata)
{
int nr;
+
+ if (!f75375s_pdata) {
+ u8 conf, mode;
+ int nr;
+
+ conf = f75375_read8(client, F75375_REG_CONFIG1);
+ mode = f75375_read8(client, F75375_REG_FAN_TIMER);
+ for (nr = 0; nr < 2; nr++) {
+ if (!(conf & (1 << FAN_CTRL_LINEAR(nr))))
+ data->pwm_mode[nr] = 1;
+ switch ((mode >> FAN_CTRL_MODE(nr)) & 3) {
+ case 0: /* speed */
+ data->pwm_enable[nr] = 3;
+ break;
+ case 1: /* automatic */
+ data->pwm_enable[nr] = 2;
+ break;
+ default: /* manual */
+ data->pwm_enable[nr] = 1;
+ break;
+ }
+ }
+ return;
+ }
+
set_pwm_enable_direct(client, 0, f75375s_pdata->pwm_enable[0]);
set_pwm_enable_direct(client, 1, f75375s_pdata->pwm_enable[1]);
for (nr = 0; nr < 2; nr++) {
@@ -703,8 +728,7 @@ static int f75375_probe(struct i2c_client *client,
goto exit_remove;
}
- if (f75375s_pdata != NULL)
- f75375_init(client, data, f75375s_pdata);
+ f75375_init(client, data, f75375s_pdata);
return 0;
--
1.7.3.1
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