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drm/radeon/dpm: grab fan info from vbios

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Required for fan control support.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2014-09-08 02:51:49 -04:00
parent 507d0ca71b
commit 9b92d1ec62
2 changed files with 13 additions and 0 deletions
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8
drivers/gpu/drm/radeon/radeon_atombios.c
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@@ -2248,6 +2248,14 @@ static void radeon_atombios_add_pplib_thermal_controller(struct radeon_device *r
/* add the i2c bus for thermal/fan chip */
if (controller->ucType > 0) {
if (controller->ucFanParameters & ATOM_PP_FANPARAMETERS_NOFAN)
rdev->pm.no_fan = true;
rdev->pm.fan_pulses_per_revolution =
controller->ucFanParameters & ATOM_PP_FANPARAMETERS_TACHOMETER_PULSES_PER_REVOLUTION_MASK;
if (rdev->pm.fan_pulses_per_revolution) {
rdev->pm.fan_min_rpm = controller->ucFanMinRPM;
rdev->pm.fan_max_rpm = controller->ucFanMaxRPM;
}
if (controller->ucType == ATOM_PP_THERMALCONTROLLER_RV6xx) {
DRM_INFO("Internal thermal controller %s fan control\n",
(controller->ucFanParameters &