drm/radeon/dpm: add late_enable for rs780/rs880/rv6xx

Make sure interrupts are enabled before we enable
thermal interrupts.

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

drivers/gpu/drm/radeon/r600_dpm.c

@@ -777,6 +777,22 @@ bool r600_is_internal_thermal_sensor(enum radeon_int_thermal_type sensor)
 	}
 }
 
+int r600_dpm_late_enable(struct radeon_device *rdev)
+{
+	int ret;
+
+	if (rdev->irq.installed &&
+	    r600_is_internal_thermal_sensor(rdev->pm.int_thermal_type)) {
+		ret = r600_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);
+	}
+
+	return 0;
+}
+
 union power_info {
 	struct _ATOM_POWERPLAY_INFO info;
 	struct _ATOM_POWERPLAY_INFO_V2 info_2;

drivers/gpu/drm/radeon/radeon_asic.c

@@ -1045,6 +1045,7 @@ static struct radeon_asic rv6xx_asic = {
 		.init = &rv6xx_dpm_init,
 		.setup_asic = &rv6xx_setup_asic,
 		.enable = &rv6xx_dpm_enable,
+		.late_enable = &r600_dpm_late_enable,
 		.disable = &rv6xx_dpm_disable,
 		.pre_set_power_state = &r600_dpm_pre_set_power_state,
 		.set_power_state = &rv6xx_dpm_set_power_state,
@@ -1135,6 +1136,7 @@ static struct radeon_asic rs780_asic = {
 		.init = &rs780_dpm_init,
 		.setup_asic = &rs780_dpm_setup_asic,
 		.enable = &rs780_dpm_enable,
+		.late_enable = &r600_dpm_late_enable,
 		.disable = &rs780_dpm_disable,
 		.pre_set_power_state = &r600_dpm_pre_set_power_state,
 		.set_power_state = &rs780_dpm_set_power_state,

drivers/gpu/drm/radeon/radeon_asic.h

@@ -392,6 +392,7 @@ int rv6xx_get_temp(struct radeon_device *rdev);
 int r600_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk);
 int r600_dpm_pre_set_power_state(struct radeon_device *rdev);
 void r600_dpm_post_set_power_state(struct radeon_device *rdev);
+int r600_dpm_late_enable(struct radeon_device *rdev);
 /* r600 dma */
 uint32_t r600_dma_get_rptr(struct radeon_device *rdev,
 			   struct radeon_ring *ring);