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authorGuenter Roeck <guenter.roeck@ericsson.com>2011-12-08 22:15:51 +0400
committerGuenter Roeck <guenter.roeck@ericsson.com>2012-01-05 20:19:30 +0400
commitb1b561a228de9796eff8c7e03e1e7ee63ab13115 (patch)
tree52912746ebdd55f99068e047a801fddc9cd278a4 /drivers/hwmon/f75375s.c
parent3310600aa7bc11ead9b0324b972d13fb0e91bcaf (diff)
downloadlinux-b1b561a228de9796eff8c7e03e1e7ee63ab13115.tar.xz
hwmon: (f75375s) Initialize pwmX_mode and pwmX_enable if there is no platform data
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@iki.fi> Reviewed-by: Bjoern Gerhart <oss@extracloud.de> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Diffstat (limited to 'drivers/hwmon/f75375s.c')
-rw-r--r--drivers/hwmon/f75375s.c28
1 files changed, 26 insertions, 2 deletions
diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c
index 777a665164f9..9c3f078e263b 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;