drm/radeon: bind fan control on CI cards to hwmon interface (v2)

This adds a possibility to control fan on CI parts
via exported hwmon variables. Note that automatic
ucode fan management pauses if you choose to enable
manual fan control.  Use with caution!

v2: agd5f: fix formatting, squash in:

    minor fix for pwm1_enable exposed value

    Track smc control in addition to fan mode
    This fixes pwm1_enable being constantly set
    to 1 because of enabled smc control

also handle the case where smc fan control is disabled.

Signed-off-by: Oleg Chernovskiy <algonkvel@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Oleg Chernovskiy
2014-12-08 00:10:46 +03:00
committed by Alex Deucher
parent 99736703a9
commit 36689e5750
4 changed files with 55 additions and 10 deletions

View File

@@ -291,6 +291,7 @@ struct ci_power_info {
struct ci_ps requested_ps;
/* fan control */
bool fan_ctrl_is_in_default_mode;
bool fan_is_controlled_by_smc;
u32 t_min;
u32 fan_ctrl_default_mode;
};