drm/sti: Do not export symbols

None of these exported symbols are used outside of the drm-sti driver,
so there is no reason to export them.

Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Vincent Abriou <vincent.abriou@st.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Vincent Abriou <vincent.abriou@st.com>

drivers/gpu/drm/sti/sti_crtc.c

@@ -319,7 +319,6 @@ int sti_crtc_enable_vblank(struct drm_device *dev, unsigned int pipe)
 
 	return 0;
 }
-EXPORT_SYMBOL(sti_crtc_enable_vblank);
 
 void sti_crtc_disable_vblank(struct drm_device *drm_dev, unsigned int pipe)
 {
@@ -340,7 +339,6 @@ void sti_crtc_disable_vblank(struct drm_device *drm_dev, unsigned int pipe)
 		compo->mixer[pipe]->pending_event = NULL;
 	}
 }
-EXPORT_SYMBOL(sti_crtc_disable_vblank);
 
 static const struct drm_crtc_funcs sti_crtc_funcs = {
 	.set_config = drm_atomic_helper_set_config,
@@ -361,7 +359,6 @@ bool sti_crtc_is_main(struct drm_crtc *crtc)
 
 	return false;
 }
-EXPORT_SYMBOL(sti_crtc_is_main);
 
 int sti_crtc_init(struct drm_device *drm_dev, struct sti_mixer *mixer,
 		  struct drm_plane *primary, struct drm_plane *cursor)

drivers/gpu/drm/sti/sti_mixer.c

@@ -58,7 +58,6 @@ const char *sti_mixer_to_str(struct sti_mixer *mixer)
 		return "<UNKNOWN MIXER>";
 	}
 }
-EXPORT_SYMBOL(sti_mixer_to_str);
 
 static inline u32 sti_mixer_reg_read(struct sti_mixer *mixer, u32 reg_id)
 {

drivers/gpu/drm/sti/sti_plane.c

@@ -42,7 +42,6 @@ const char *sti_plane_to_str(struct sti_plane *plane)
 		return "<UNKNOWN PLANE>";
 	}
 }
-EXPORT_SYMBOL(sti_plane_to_str);
 
 static void sti_plane_destroy(struct drm_plane *drm_plane)
 {
@@ -108,7 +107,6 @@ void sti_plane_init_property(struct sti_plane *plane,
 			 plane->drm_plane.base.id,
 			 sti_plane_to_str(plane), plane->zorder);
 }
-EXPORT_SYMBOL(sti_plane_init_property);
 
 struct drm_plane_funcs sti_plane_helpers_funcs = {
 	.update_plane = drm_atomic_helper_update_plane,
@@ -119,4 +117,3 @@ struct drm_plane_funcs sti_plane_helpers_funcs = {
 	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 };
-EXPORT_SYMBOL(sti_plane_helpers_funcs);

drivers/gpu/drm/sti/sti_vtg.c

@@ -110,7 +110,6 @@ struct sti_vtg *of_vtg_find(struct device_node *np)
 	}
 	return NULL;
 }
-EXPORT_SYMBOL(of_vtg_find);
 
 static void vtg_reset(struct sti_vtg *vtg)
 {
@@ -242,7 +241,6 @@ void sti_vtg_set_config(struct sti_vtg *vtg,
 	else
 		vtg_enable_irq(vtg);
 }
-EXPORT_SYMBOL(sti_vtg_set_config);
 
 /**
  * sti_vtg_get_line_number
@@ -265,7 +263,6 @@ u32 sti_vtg_get_line_number(struct drm_display_mode mode, int y)
 
 	return start_line + y;
 }
-EXPORT_SYMBOL(sti_vtg_get_line_number);
 
 /**
  * sti_vtg_get_pixel_number
@@ -281,7 +278,6 @@ u32 sti_vtg_get_pixel_number(struct drm_display_mode mode, int x)
 {
 	return mode.htotal - mode.hsync_start + x;
 }
-EXPORT_SYMBOL(sti_vtg_get_pixel_number);
 
 int sti_vtg_register_client(struct sti_vtg *vtg, struct notifier_block *nb,
 			    struct drm_crtc *crtc)
@@ -292,7 +288,6 @@ int sti_vtg_register_client(struct sti_vtg *vtg, struct notifier_block *nb,
 	vtg->crtc = crtc;
 	return raw_notifier_chain_register(&vtg->notifier_list, nb);
 }
-EXPORT_SYMBOL(sti_vtg_register_client);
 
 int sti_vtg_unregister_client(struct sti_vtg *vtg, struct notifier_block *nb)
 {
@@ -301,7 +296,6 @@ int sti_vtg_unregister_client(struct sti_vtg *vtg, struct notifier_block *nb)
 
 	return raw_notifier_chain_unregister(&vtg->notifier_list, nb);
 }
-EXPORT_SYMBOL(sti_vtg_unregister_client);
 
 static irqreturn_t vtg_irq_thread(int irq, void *arg)
 {