drm/amdgpu: Get real power source to initizlize ac_power

driver need to know the real power source to do some power
related configuration when initialize.

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

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 3317d1536f4fc352247756e3c650d72c9236916b..fe76ec1f9737484670366ebedac441e2027df577 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -25,6 +25,7 @@
  *          Alex Deucher
  *          Jerome Glisse
  */
+#include <linux/power_supply.h>
 #include <linux/kthread.h>
 #include <linux/console.h>
 #include <linux/slab.h>
@@ -2293,6 +2294,8 @@ int amdgpu_device_init(struct amdgpu_device *adev,
        INIT_DELAYED_WORK(&adev->late_init_work,
                          amdgpu_device_ip_late_init_func_handler);
 
+       adev->pm.ac_power = power_supply_is_system_supplied() > 0 ? true : false;
+
        /* Registers mapping */
        /* TODO: block userspace mapping of io register */
        if (adev->asic_type >= CHIP_BONAIRE) {