diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2014-08-18 16:51:46 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-08-19 11:29:22 -0400 |
| commit | 73ef0e0d62de4a8d40d34a6f645faee2f6e1ac33 (patch) | |
| tree | 1e788e78c8584fdf18227539ccd721223b72b3e1 | |
| parent | c940b4476f4fb649f6493b6a0ae837474ded8915 (diff) | |
drm/radeon: fix display handling in radeon_gpu_reset
If the display hw was reset or a hard reset was used,
we need to re-init some of the common display hardware as well.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_device.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 8e6187055061..6a219bcee66d 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -1681,6 +1681,7 @@ int radeon_gpu_reset(struct radeon_device *rdev) /* block TTM */ resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev); radeon_suspend(rdev); + radeon_hpd_fini(rdev); for (i = 0; i < RADEON_NUM_RINGS; ++i) { ring_sizes[i] = radeon_ring_backup(rdev, &rdev->ring[i], @@ -1737,6 +1738,21 @@ retry: radeon_pm_resume(rdev); } + /* init dig PHYs, disp eng pll */ + if (rdev->is_atom_bios) { + radeon_atom_encoder_init(rdev); + radeon_atom_disp_eng_pll_init(rdev); + /* turn on the BL */ + if (rdev->mode_info.bl_encoder) { + u8 bl_level = radeon_get_backlight_level(rdev, + rdev->mode_info.bl_encoder); + radeon_set_backlight_level(rdev, rdev->mode_info.bl_encoder, + bl_level); + } + } + /* reset hpd state */ + radeon_hpd_init(rdev); + drm_helper_resume_force_mode(rdev->ddev); /* set the power state here in case we are a PX system or headless */ |