Since drm_atomic_helper_shutdown() rework it is possible to do additional
clean up in sti driver: custom plane destroy functions become useless and
clean up encoder is no more needed.

Signed-off-by: Benjamin Gaignard <benjamin.gaign...@linaro.org>
---
version 2:
- try to be more smart when unbinding tvout.

 drivers/gpu/drm/sti/sti_cursor.c |  9 +--------
 drivers/gpu/drm/sti/sti_gdp.c    |  9 +--------
 drivers/gpu/drm/sti/sti_hqvdp.c  |  9 +--------
 drivers/gpu/drm/sti/sti_tvout.c  | 24 ++++++++----------------
 4 files changed, 11 insertions(+), 40 deletions(-)

diff --git a/drivers/gpu/drm/sti/sti_cursor.c b/drivers/gpu/drm/sti/sti_cursor.c
index bc908453ffb3..e1ba253055c7 100644
--- a/drivers/gpu/drm/sti/sti_cursor.c
+++ b/drivers/gpu/drm/sti/sti_cursor.c
@@ -328,13 +328,6 @@ static const struct drm_plane_helper_funcs 
sti_cursor_helpers_funcs = {
        .atomic_disable = sti_cursor_atomic_disable,
 };
 
-static void sti_cursor_destroy(struct drm_plane *drm_plane)
-{
-       DRM_DEBUG_DRIVER("\n");
-
-       drm_plane_cleanup(drm_plane);
-}
-
 static int sti_cursor_late_register(struct drm_plane *drm_plane)
 {
        struct sti_plane *plane = to_sti_plane(drm_plane);
@@ -346,7 +339,7 @@ static int sti_cursor_late_register(struct drm_plane 
*drm_plane)
 static const struct drm_plane_funcs sti_cursor_plane_helpers_funcs = {
        .update_plane = drm_atomic_helper_update_plane,
        .disable_plane = drm_atomic_helper_disable_plane,
-       .destroy = sti_cursor_destroy,
+       .destroy = drm_plane_cleanup,
        .reset = sti_plane_reset,
        .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
        .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c
index 3c19614d3f75..87b50451afd7 100644
--- a/drivers/gpu/drm/sti/sti_gdp.c
+++ b/drivers/gpu/drm/sti/sti_gdp.c
@@ -879,13 +879,6 @@ static const struct drm_plane_helper_funcs 
sti_gdp_helpers_funcs = {
        .atomic_disable = sti_gdp_atomic_disable,
 };
 
-static void sti_gdp_destroy(struct drm_plane *drm_plane)
-{
-       DRM_DEBUG_DRIVER("\n");
-
-       drm_plane_cleanup(drm_plane);
-}
-
 static int sti_gdp_late_register(struct drm_plane *drm_plane)
 {
        struct sti_plane *plane = to_sti_plane(drm_plane);
@@ -897,7 +890,7 @@ static int sti_gdp_late_register(struct drm_plane 
*drm_plane)
 static const struct drm_plane_funcs sti_gdp_plane_helpers_funcs = {
        .update_plane = drm_atomic_helper_update_plane,
        .disable_plane = drm_atomic_helper_disable_plane,
-       .destroy = sti_gdp_destroy,
+       .destroy = drm_plane_cleanup,
        .reset = sti_plane_reset,
        .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
        .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
index 23565f52dd71..065a5b08a702 100644
--- a/drivers/gpu/drm/sti/sti_hqvdp.c
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -1256,13 +1256,6 @@ static const struct drm_plane_helper_funcs 
sti_hqvdp_helpers_funcs = {
        .atomic_disable = sti_hqvdp_atomic_disable,
 };
 
-static void sti_hqvdp_destroy(struct drm_plane *drm_plane)
-{
-       DRM_DEBUG_DRIVER("\n");
-
-       drm_plane_cleanup(drm_plane);
-}
-
 static int sti_hqvdp_late_register(struct drm_plane *drm_plane)
 {
        struct sti_plane *plane = to_sti_plane(drm_plane);
@@ -1274,7 +1267,7 @@ static int sti_hqvdp_late_register(struct drm_plane 
*drm_plane)
 static const struct drm_plane_funcs sti_hqvdp_plane_helpers_funcs = {
        .update_plane = drm_atomic_helper_update_plane,
        .disable_plane = drm_atomic_helper_disable_plane,
-       .destroy = sti_hqvdp_destroy,
+       .destroy = drm_plane_cleanup,
        .reset = sti_plane_reset,
        .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
        .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
diff --git a/drivers/gpu/drm/sti/sti_tvout.c b/drivers/gpu/drm/sti/sti_tvout.c
index ea4a3b87fa55..1a64bcad9630 100644
--- a/drivers/gpu/drm/sti/sti_tvout.c
+++ b/drivers/gpu/drm/sti/sti_tvout.c
@@ -788,21 +788,6 @@ static void sti_tvout_create_encoders(struct drm_device 
*dev,
        tvout->dvo = sti_tvout_create_dvo_encoder(dev, tvout);
 }
 
-static void sti_tvout_destroy_encoders(struct sti_tvout *tvout)
-{
-       if (tvout->hdmi)
-               drm_encoder_cleanup(tvout->hdmi);
-       tvout->hdmi = NULL;
-
-       if (tvout->hda)
-               drm_encoder_cleanup(tvout->hda);
-       tvout->hda = NULL;
-
-       if (tvout->dvo)
-               drm_encoder_cleanup(tvout->dvo);
-       tvout->dvo = NULL;
-}
-
 static int sti_tvout_bind(struct device *dev, struct device *master, void 
*data)
 {
        struct sti_tvout *tvout = dev_get_drvdata(dev);
@@ -819,8 +804,15 @@ static void sti_tvout_unbind(struct device *dev, struct 
device *master,
        void *data)
 {
        struct sti_tvout *tvout = dev_get_drvdata(dev);
+       struct drm_device *drm_dev = data;
+       struct drm_encoder *encoder;
 
-       sti_tvout_destroy_encoders(tvout);
+       drm_for_each_encoder(encoder, drm_dev) {
+               drm_encoder_cleanup(encoder);
+       }
+       tvout->hdmi = NULL;
+       tvout->hda = NULL;
+       tvout->dvo = NULL;
 }
 
 static const struct component_ops sti_tvout_ops = {
-- 
2.15.0

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