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

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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
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7
drivers/gpu/drm/radeon/radeon_asic.h
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@@ -861,6 +861,13 @@ int ci_dpm_force_performance_level(struct radeon_device *rdev,
bool ci_dpm_vblank_too_short(struct radeon_device *rdev);
void ci_dpm_powergate_uvd(struct radeon_device *rdev, bool gate);
int ci_fan_ctrl_get_fan_speed_percent(struct radeon_device *rdev,
u32 *speed);
int ci_fan_ctrl_set_fan_speed_percent(struct radeon_device *rdev,
u32 speed);
u32 ci_fan_ctrl_get_mode(struct radeon_device *rdev);
void ci_fan_ctrl_set_mode(struct radeon_device *rdev, u32 mode);
int kv_dpm_init(struct radeon_device *rdev);
int kv_dpm_enable(struct radeon_device *rdev);
int kv_dpm_late_enable(struct radeon_device *rdev);