From: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Date: Fri, 19 Jan 2018 16:35:05 -0500
Subject: drm/amd/display: Remove unsued mutex and spinlock.
Git-commit: d45d97b2437ec621ba56387e9cff8aa288aa88f9
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
They seem to be obsolete.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 6 ------
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 9 ---------
2 files changed, 15 deletions(-)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -411,12 +411,6 @@ static int amdgpu_dm_init(struct amdgpu_
/* Zero all the fields */
memset(&init_data, 0, sizeof(init_data));
- /* initialize DAL's lock (for SYNC context use) */
- spin_lock_init(&adev->dm.dal_lock);
-
- /* initialize DAL's mutex */
- mutex_init(&adev->dm.dal_mutex);
-
if(amdgpu_dm_irq_init(adev)) {
DRM_ERROR("amdgpu: failed to initialize DM IRQ support.\n");
goto error;
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -85,8 +85,6 @@ struct amdgpu_display_manager {
struct dal *dal;
struct dc *dc;
struct cgs_device *cgs_device;
- /* lock to be used when DAL is called from SYNC IRQ context */
- spinlock_t dal_lock;
struct amdgpu_device *adev; /*AMD base driver*/
struct drm_device *ddev; /*DRM base driver*/
@@ -123,13 +121,6 @@ struct amdgpu_display_manager {
struct list_head timer_handler_list;
struct workqueue_struct *timer_workqueue;
- /* Use dal_mutex for any activity which is NOT syncronized by
- * DRM mode setting locks.
- * For example: amdgpu_dm_hpd_low_irq() calls into DAL *without*
- * DRM mode setting locks being acquired. This is where dal_mutex
- * is acquired before calling into DAL. */
- struct mutex dal_mutex;
-
struct backlight_device *backlight_dev;
const struct dc_link *backlight_link;