[PATCH 1/8] drm/amd/display: use drmm_writeback_connector_init()

[Dmitry Baryshkov]

Use drmm_plain_encoder_alloc() to allocate simple encoder and
drmm_writeback_connector_init() in order to initialize writeback
connector instance.

Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@oss.qualcomm.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c    |  2 +-
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c | 18 +++++++++++++-----
 2 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 
096b23ad4845d365dad707deed4e3e84b1f9945d..a9948e8d67a6e9556d21090b5cdd101258d62480
 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -10003,7 +10003,7 @@ static void dm_set_writeback(struct 
amdgpu_display_manager *dm,
                return;
        }
 
-       acrtc = to_amdgpu_crtc(wb_conn->encoder.crtc);
+       acrtc = to_amdgpu_crtc(crtc_state->base.crtc);
        if (!acrtc) {
                drm_err(adev_to_drm(adev), "no amdgpu_crtc found\n");
                kfree(wb_info);
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c
index 
d9527c05fc878ef6916782ff9fde847813938461..80c37487ca77c0494eaf769c5b9a3c53486aa52d
 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c
@@ -171,7 +171,6 @@ static const struct drm_encoder_helper_funcs 
amdgpu_dm_wb_encoder_helper_funcs =
 
 static const struct drm_connector_funcs amdgpu_dm_wb_connector_funcs = {
        .fill_modes = drm_helper_probe_single_connector_modes,
-       .destroy = drm_connector_cleanup,
        .reset = amdgpu_dm_connector_funcs_reset,
        .atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state,
        .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
@@ -190,17 +189,26 @@ int amdgpu_dm_wb_connector_init(struct 
amdgpu_display_manager *dm,
        struct dc *dc = dm->dc;
        struct dc_link *link = dc_get_link_at_index(dc, link_index);
        int res = 0;
+       struct drm_encoder *encoder;
+
+       encoder = drmm_plain_encoder_alloc(&dm->adev->ddev, NULL,
+                                          DRM_MODE_ENCODER_VIRTUAL, NULL);
+       if (IS_ERR(encoder))
+               return PTR_ERR(encoder);
+
+       drm_encoder_helper_add(encoder, &amdgpu_dm_wb_encoder_helper_funcs);
+
+       encoder->possible_crtcs = amdgpu_dm_get_encoder_crtc_mask(dm->adev);
 
        wbcon->link = link;
 
        drm_connector_helper_add(&wbcon->base.base, 
&amdgpu_dm_wb_conn_helper_funcs);
 
-       res = drm_writeback_connector_init(&dm->adev->ddev, &wbcon->base,
+       res = drmm_writeback_connector_init(&dm->adev->ddev, &wbcon->base,
                                            &amdgpu_dm_wb_connector_funcs,
-                                           &amdgpu_dm_wb_encoder_helper_funcs,
+                                           encoder,
                                            amdgpu_dm_wb_formats,
-                                           ARRAY_SIZE(amdgpu_dm_wb_formats),
-                                           
amdgpu_dm_get_encoder_crtc_mask(dm->adev));
+                                           ARRAY_SIZE(amdgpu_dm_wb_formats));
 
        if (res)
                return res;

-- 
2.39.5