Only single instances of CRTC and connector are supported per
device. Embed both in ast's structure and remove the individual
memory allocations. DRM's CRTC/connector cleanup helpers replace
the rsp. destroy functions in ast.

While at it, also convert to_ast_connector() to a function.

Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de>
---
 drivers/gpu/drm/ast/ast_drv.h  | 34 ++++++++++++++-----------
 drivers/gpu/drm/ast/ast_mode.c | 46 ++++++++--------------------------
 2 files changed, 31 insertions(+), 49 deletions(-)

diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
index d303df568099..b401560e4e8f 100644
--- a/drivers/gpu/drm/ast/ast_drv.h
+++ b/drivers/gpu/drm/ast/ast_drv.h
@@ -98,6 +98,23 @@ enum ast_tx_chip {
 #define AST_HWC_SIGNATURE_HOTSPOTX     0x14
 #define AST_HWC_SIGNATURE_HOTSPOTY     0x18
 
+struct ast_i2c_chan {
+       struct i2c_adapter adapter;
+       struct drm_device *dev;
+       struct i2c_algo_bit_data bit;
+};
+
+struct ast_connector {
+       struct drm_connector base;
+       struct ast_i2c_chan i2c;
+};
+
+static inline struct ast_connector *
+to_ast_connector(struct drm_connector *connector)
+{
+       return container_of(connector, struct ast_connector, base);
+}
+
 struct ast_private {
        struct drm_device *dev;
 
@@ -118,9 +135,11 @@ struct ast_private {
                unsigned int next_index;
        } cursor;
 
-       struct drm_encoder encoder;
        struct drm_plane primary_plane;
        struct drm_plane cursor_plane;
+       struct drm_crtc crtc;
+       struct drm_encoder encoder;
+       struct ast_connector connector;
 
        bool support_wide_screen;
        enum {
@@ -225,19 +244,6 @@ static inline void ast_open_key(struct ast_private *ast)
 
 #define AST_VIDMEM_DEFAULT_SIZE AST_VIDMEM_SIZE_8M
 
-struct ast_i2c_chan {
-       struct i2c_adapter adapter;
-       struct drm_device *dev;
-       struct i2c_algo_bit_data bit;
-};
-
-struct ast_connector {
-       struct drm_connector base;
-       struct ast_i2c_chan i2c;
-};
-
-#define to_ast_connector(x) container_of(x, struct ast_connector, base)
-
 struct ast_vbios_stdtable {
        u8 misc;
        u8 seq[4];
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 27eb49bd12b3..201313ab3e71 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -952,12 +952,6 @@ static void ast_crtc_reset(struct drm_crtc *crtc)
        __drm_atomic_helper_crtc_reset(crtc, &ast_state->base);
 }
 
-static void ast_crtc_destroy(struct drm_crtc *crtc)
-{
-       drm_crtc_cleanup(crtc);
-       kfree(crtc);
-}
-
 static struct drm_crtc_state *
 ast_crtc_atomic_duplicate_state(struct drm_crtc *crtc)
 {
@@ -993,7 +987,7 @@ static void ast_crtc_atomic_destroy_state(struct drm_crtc 
*crtc,
 static const struct drm_crtc_funcs ast_crtc_funcs = {
        .reset = ast_crtc_reset,
        .gamma_set = drm_atomic_helper_legacy_gamma_set,
-       .destroy = ast_crtc_destroy,
+       .destroy = drm_crtc_cleanup,
        .set_config = drm_atomic_helper_set_config,
        .page_flip = drm_atomic_helper_page_flip,
        .atomic_duplicate_state = ast_crtc_atomic_duplicate_state,
@@ -1003,27 +997,19 @@ static const struct drm_crtc_funcs ast_crtc_funcs = {
 static int ast_crtc_init(struct drm_device *dev)
 {
        struct ast_private *ast = to_ast_private(dev);
-       struct drm_crtc *crtc;
+       struct drm_crtc *crtc = &ast->crtc;
        int ret;
 
-       crtc = kzalloc(sizeof(*crtc), GFP_KERNEL);
-       if (!crtc)
-               return -ENOMEM;
-
        ret = drm_crtc_init_with_planes(dev, crtc, &ast->primary_plane,
                                        &ast->cursor_plane, &ast_crtc_funcs,
                                        NULL);
        if (ret)
-               goto err_kfree;
+               return ret;
 
        drm_mode_crtc_set_gamma_size(crtc, 256);
        drm_crtc_helper_add(crtc, &ast_crtc_helper_funcs);
 
        return 0;
-
-err_kfree:
-       kfree(crtc);
-       return ret;
 }
 
 /*
@@ -1138,12 +1124,6 @@ static enum drm_mode_status ast_mode_valid(struct 
drm_connector *connector,
        return flags;
 }
 
-static void ast_connector_destroy(struct drm_connector *connector)
-{
-       drm_connector_cleanup(connector);
-       kfree(connector);
-}
-
 static const struct drm_connector_helper_funcs ast_connector_helper_funcs = {
        .get_modes = ast_get_modes,
        .mode_valid = ast_mode_valid,
@@ -1152,31 +1132,28 @@ static const struct drm_connector_helper_funcs 
ast_connector_helper_funcs = {
 static const struct drm_connector_funcs ast_connector_funcs = {
        .reset = drm_atomic_helper_connector_reset,
        .fill_modes = drm_helper_probe_single_connector_modes,
-       .destroy = ast_connector_destroy,
+       .destroy = drm_connector_cleanup,
        .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
        .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
 
 static int ast_connector_init(struct drm_device *dev)
 {
-       struct ast_connector *ast_connector;
-       struct drm_connector *connector;
-       struct drm_encoder *encoder;
+       struct ast_private *ast = to_ast_private(dev);
+       struct ast_connector *ast_connector = &ast->connector;
+       struct drm_connector *connector = &ast_connector->base;
+       struct drm_encoder *encoder = &ast->encoder;
+       struct ast_i2c_chan *i2c = &ast_connector->i2c;
        int ret;
 
-       ast_connector = kzalloc(sizeof(struct ast_connector), GFP_KERNEL);
-       if (!ast_connector)
-               return -ENOMEM;
-
-       connector = &ast_connector->base;
-       ret = ast_i2c_init(&ast_connector->i2c, dev);
+       ret = ast_i2c_init(i2c, dev);
        if (ret)
                drm_err(dev, "failed to add ddc bus for connector\n");
 
        drm_connector_init_with_ddc(dev, connector,
                                    &ast_connector_funcs,
                                    DRM_MODE_CONNECTOR_VGA,
-                                   &ast_connector->i2c.adapter);
+                                   &i2c->adapter);
 
        drm_connector_helper_add(connector, &ast_connector_helper_funcs);
 
@@ -1185,7 +1162,6 @@ static int ast_connector_init(struct drm_device *dev)
 
        connector->polled = DRM_CONNECTOR_POLL_CONNECT;
 
-       encoder = list_first_entry(&dev->mode_config.encoder_list, struct 
drm_encoder, head);
        drm_connector_attach_encoder(connector, encoder);
 
        return 0;
-- 
2.27.0

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