add common fan control asic callbacks

Adds 4 callbacks for managing fan state/speed
* fan_ctrl_set_mode - manages fan control mode (nonzero == manual)
* fan_ctrl_get_mode - queries fan control mode
* set_fan_speed_percent - manages fan speed as percentage value
* get_fan_speed_percent - queries fan speed as percentage value

Signed-off-by: Oleg Chernovskiy <algonkvel@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 54529b837afaa1d76147f764664047af5f09b5f6..4195e6cc4e52fac927f2304ed70eddea528b9a74 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1967,6 +1967,10 @@ struct radeon_asic {
                bool (*vblank_too_short)(struct radeon_device *rdev);
                void (*powergate_uvd)(struct radeon_device *rdev, bool gate);
                void (*enable_bapm)(struct radeon_device *rdev, bool enable);
+               void (*fan_ctrl_set_mode)(struct radeon_device *rdev, u32 mode);
+               u32 (*fan_ctrl_get_mode)(struct radeon_device *rdev);
+               int (*set_fan_speed_percent)(struct radeon_device *rdev, u32 speed);
+               int (*get_fan_speed_percent)(struct radeon_device *rdev, u32 *speed);
        } dpm;
        /* pageflipping */
        struct {