1 files changed, 18 insertions, 5 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 39b033b441d2..b012cbbc3ed5 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -144,6 +144,11 @@ void radeon_program_register_sequence(struct radeon_device *rdev,
         }
 }
 
+void radeon_pci_config_reset(struct radeon_device *rdev)
+{
+        pci_write_config_dword(rdev->pdev, 0x7c, RADEON_ASIC_RESET_DATA);
+}
+
 /**
  * radeon_surface_init - Clear GPU surface registers.
  *
@@ -249,7 +254,7 @@ void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg)
  * Init doorbell driver information (CIK)
  * Returns 0 on success, error on failure.
  */
-int radeon_doorbell_init(struct radeon_device *rdev)
+static int radeon_doorbell_init(struct radeon_device *rdev)
 {
         /* doorbell bar mapping */
         rdev->doorbell.base = pci_resource_start(rdev->pdev, 2);
@@ -278,7 +283,7 @@ int radeon_doorbell_init(struct radeon_device *rdev)
  *
  * Tear down doorbell driver information (CIK)
  */
-void radeon_doorbell_fini(struct radeon_device *rdev)
+static void radeon_doorbell_fini(struct radeon_device *rdev)
 {
         iounmap(rdev->doorbell.ptr);
         rdev->doorbell.ptr = NULL;
@@ -1330,6 +1335,7 @@ int radeon_device_init(struct radeon_device *rdev,
                 if (r)
                         return r;
         }
+
         if ((radeon_testing & 1)) {
                 if (rdev->accel_working)
                         radeon_test_moves(rdev);
@@ -1455,7 +1461,6 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon)
 
         radeon_save_bios_scratch_regs(rdev);
 
-        radeon_pm_suspend(rdev);
         radeon_suspend(rdev);
         radeon_hpd_fini(rdev);
         /* evict remaining vram memory */
@@ -1516,14 +1521,22 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
         if (r)
                 DRM_ERROR("ib ring test failed (%d).\n", r);
 
-        radeon_pm_resume(rdev);
+        if (rdev->pm.dpm_enabled) {
+                /* do dpm late init */
+                r = radeon_pm_late_init(rdev);
+                if (r) {
+                        rdev->pm.dpm_enabled = false;
+                        DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
+                }
+        }
+
         radeon_restore_bios_scratch_regs(rdev);
 
         if (fbcon) {
                 radeon_fbdev_set_suspend(rdev, 0);
                 console_unlock();
         }
-       
+
         /* init dig PHYs, disp eng pll */
         if (rdev->is_atom_bios) {
                 radeon_atom_encoder_init(rdev);