The prepare_writeback_job() connector helper hook needs access to
the parent drm_connector object as well as the drm_writeback_connector
object itself. So, pass in the top level drm_connector and traverse
down to drm_writeback_connector rather than passing in the lower
level object and traversing back up. This also makes it uniform
with the params passed to other drm_connector_helper_funcs hooks.

Signed-off-by: Suraj Kandpal <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
---
v3 -> v4:
- Update subject line for consitency (John)
- Update commit message across commits for consitency (John)

 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c | 2 +-
 drivers/gpu/drm/drm_writeback.c                      | 2 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c        | 4 +---
 drivers/gpu/drm/renesas/rcar-du/rcar_du_writeback.c  | 5 ++---
 drivers/gpu/drm/vkms/vkms_writeback.c                | 2 +-
 include/drm/drm_modeset_helper_vtables.h             | 2 +-
 6 files changed, 7 insertions(+), 10 deletions(-)

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 bb4945f01616..aba1287454c5 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
@@ -80,7 +80,7 @@ static int amdgpu_dm_wb_connector_get_modes(struct 
drm_connector *connector)
        return drm_add_modes_noedid(connector, 3840, 2160);
 }
 
-static int amdgpu_dm_wb_prepare_job(struct drm_writeback_connector 
*wb_connector,
+static int amdgpu_dm_wb_prepare_job(struct drm_connector *connector,
                               struct drm_writeback_job *job)
 {
        struct amdgpu_framebuffer *afb;
diff --git a/drivers/gpu/drm/drm_writeback.c b/drivers/gpu/drm/drm_writeback.c
index 72e437f4394b..4f3c257fc327 100644
--- a/drivers/gpu/drm/drm_writeback.c
+++ b/drivers/gpu/drm/drm_writeback.c
@@ -392,7 +392,7 @@ int drm_writeback_prepare_job(struct drm_writeback_job *job)
        int ret;
 
        if (funcs->prepare_writeback_job) {
-               ret = funcs->prepare_writeback_job(wb_connector, job);
+               ret = funcs->prepare_writeback_job(connector, job);
                if (ret < 0)
                        return ret;
        }
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c
index 4dee524d1270..3fd2eb1b7cb8 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c
@@ -87,11 +87,9 @@ static const struct drm_connector_funcs dpu_wb_conn_funcs = {
        .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
 
-static int dpu_wb_conn_prepare_job(struct drm_writeback_connector *wb_conn,
+static int dpu_wb_conn_prepare_job(struct drm_connector *connector,
                struct drm_writeback_job *job)
 {
-       struct drm_connector *connector =
-               drm_writeback_to_connector(wb_conn);
        struct dpu_wb_connector *dpu_wb_conn = to_dpu_wb_conn(connector);
 
        if (!job->fb)
diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_writeback.c 
b/drivers/gpu/drm/renesas/rcar-du/rcar_du_writeback.c
index 4b0f6cd46acb..218b6504cacf 100644
--- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_writeback.c
+++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_writeback.c
@@ -47,11 +47,10 @@ static int rcar_du_wb_conn_get_modes(struct drm_connector 
*connector)
                                    dev->mode_config.max_height);
 }
 
-static int rcar_du_wb_prepare_job(struct drm_writeback_connector *connector,
+static int rcar_du_wb_prepare_job(struct drm_connector *connector,
                                  struct drm_writeback_job *job)
 {
-       struct drm_connector *conn = drm_writeback_to_connector(connector);
-       struct rcar_du_crtc *rcrtc = wb_to_rcar_crtc(conn);
+       struct rcar_du_crtc *rcrtc = wb_to_rcar_crtc(connector);
        struct rcar_du_wb_job *rjob;
        int ret;
 
diff --git a/drivers/gpu/drm/vkms/vkms_writeback.c 
b/drivers/gpu/drm/vkms/vkms_writeback.c
index 2e3df9388dd2..86e5b92c7965 100644
--- a/drivers/gpu/drm/vkms/vkms_writeback.c
+++ b/drivers/gpu/drm/vkms/vkms_writeback.c
@@ -72,7 +72,7 @@ static int vkms_wb_connector_get_modes(struct drm_connector 
*connector)
                                    dev->mode_config.max_height);
 }
 
-static int vkms_wb_prepare_job(struct drm_writeback_connector *wb_connector,
+static int vkms_wb_prepare_job(struct drm_connector *connector,
                               struct drm_writeback_job *job)
 {
        struct vkms_writeback_job *vkmsjob;
diff --git a/include/drm/drm_modeset_helper_vtables.h 
b/include/drm/drm_modeset_helper_vtables.h
index ca6268945c28..4e26568a16fb 100644
--- a/include/drm/drm_modeset_helper_vtables.h
+++ b/include/drm/drm_modeset_helper_vtables.h
@@ -1119,7 +1119,7 @@ struct drm_connector_helper_funcs {
         *
         * This callback is used by the atomic modeset helpers.
         */
-       int (*prepare_writeback_job)(struct drm_writeback_connector *connector,
+       int (*prepare_writeback_job)(struct drm_connector *connector,
                                     struct drm_writeback_job *job);
        /**
         * @cleanup_writeback_job:
-- 
2.34.1

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