drm/radeon/dpm: add late_enable for SI

Make sure interrupts are enabled
before we enable thermal interrupts.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/radeon_asic.c

@@ -1921,6 +1921,7 @@ static struct radeon_asic si_asic = {
 		.init = &si_dpm_init,
 		.setup_asic = &si_dpm_setup_asic,
 		.enable = &si_dpm_enable,
+		.late_enable = &si_dpm_late_enable,
 		.disable = &si_dpm_disable,
 		.pre_set_power_state = &si_dpm_pre_set_power_state,
 		.set_power_state = &si_dpm_set_power_state,

drivers/gpu/drm/radeon/radeon_asic.h

@@ -673,6 +673,7 @@ int si_get_temp(struct radeon_device *rdev);
 int si_dpm_init(struct radeon_device *rdev);
 void si_dpm_setup_asic(struct radeon_device *rdev);
 int si_dpm_enable(struct radeon_device *rdev);
+int si_dpm_late_enable(struct radeon_device *rdev);
 void si_dpm_disable(struct radeon_device *rdev);
 int si_dpm_pre_set_power_state(struct radeon_device *rdev);
 int si_dpm_set_power_state(struct radeon_device *rdev);

drivers/gpu/drm/radeon/si_dpm.c

@@ -5912,6 +5912,28 @@ int si_dpm_enable(struct radeon_device *rdev)
 	return 0;
 }
 
+int si_dpm_late_enable(struct radeon_device *rdev)
+{
+	int ret;
+
+	if (rdev->irq.installed &&
+	    r600_is_internal_thermal_sensor(rdev->pm.int_thermal_type)) {
+		PPSMC_Result result;
+
+		ret = si_set_thermal_temperature_range(rdev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX);
+		if (ret)
+			return ret;
+		rdev->irq.dpm_thermal = true;
+		radeon_irq_set(rdev);
+		result = si_send_msg_to_smc(rdev, PPSMC_MSG_EnableThermalInterrupt);
+
+		if (result != PPSMC_Result_OK)
+			DRM_DEBUG_KMS("Could not enable thermal interrupts.\n");
+	}
+
+	return 0;
+}
+
 void si_dpm_disable(struct radeon_device *rdev)
 {
 	struct rv7xx_power_info *pi = rv770_get_pi(rdev);