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drm/plane-helper: Move drm_plane_helper_atomic_check() into udl

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The udl driver is the only caller of drm_plane_helper_atomic_check().
Move the function into the driver. No functional changes.

v2:
	* fix documenation (Sui)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20231204090852.1650-2-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2023-12-04 10:07:46 +01:00
parent 94f8f319cb
commit a0fce84cb1
4 changed files with 19 additions and 41 deletions
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7
drivers/gpu/drm/drm_crtc_helper.c
View File

@ -439,11 +439,8 @@ EXPORT_SYMBOL(drm_crtc_helper_set_mode);
* @state: atomic state object
*
* Provides a default CRTC-state check handler for CRTCs that only have
* one primary plane attached to it.
*
* This is often the case for the CRTC of simple framebuffers. See also
* drm_plane_helper_atomic_check() for the respective plane-state check
* helper function.
* one primary plane attached to it. This is often the case for the CRTC
* of simple framebuffers.
*
* RETURNS:
* Zero on success, or an errno code otherwise.

32
drivers/gpu/drm/drm_plane_helper.c
View File

@ -279,35 +279,3 @@ void drm_plane_helper_destroy(struct drm_plane *plane)
kfree(plane);
}
EXPORT_SYMBOL(drm_plane_helper_destroy);
/**
* drm_plane_helper_atomic_check() - Helper to check plane atomic-state
* @plane: plane to check
* @state: atomic state object
*
* Provides a default plane-state check handler for planes whose atomic-state
* scale and positioning are not expected to change since the plane is always
* a fullscreen scanout buffer.
*
* This is often the case for the primary plane of simple framebuffers. See
* also drm_crtc_helper_atomic_check() for the respective CRTC-state check
* helper function.
*
* RETURNS:
* Zero on success, or an errno code otherwise.
*/
int drm_plane_helper_atomic_check(struct drm_plane *plane, struct drm_atomic_state *state)
{
struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
struct drm_crtc *new_crtc = new_plane_state->crtc;
struct drm_crtc_state *new_crtc_state = NULL;
if (new_crtc)
new_crtc_state = drm_atomic_get_new_crtc_state(state, new_crtc);
return drm_atomic_helper_check_plane_state(new_plane_state, new_crtc_state,
DRM_PLANE_NO_SCALING,
DRM_PLANE_NO_SCALING,
false, false);
}
EXPORT_SYMBOL(drm_plane_helper_atomic_check);

19
drivers/gpu/drm/udl/udl_modeset.c
View File

@ -21,7 +21,6 @@
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_modeset_helper_vtables.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_vblank.h>
@ -261,6 +260,22 @@ static const uint64_t udl_primary_plane_fmtmods[] = {
DRM_FORMAT_MOD_INVALID
};
static int udl_primary_plane_helper_atomic_check(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
struct drm_crtc *new_crtc = new_plane_state->crtc;
struct drm_crtc_state *new_crtc_state = NULL;
if (new_crtc)
new_crtc_state = drm_atomic_get_new_crtc_state(state, new_crtc);
return drm_atomic_helper_check_plane_state(new_plane_state, new_crtc_state,
DRM_PLANE_NO_SCALING,
DRM_PLANE_NO_SCALING,
false, false);
}
static void udl_primary_plane_helper_atomic_update(struct drm_plane *plane,
struct drm_atomic_state *state)
{
@ -296,7 +311,7 @@ out_drm_gem_fb_end_cpu_access:
static const struct drm_plane_helper_funcs udl_primary_plane_helper_funcs = {
DRM_GEM_SHADOW_PLANE_HELPER_FUNCS,
.atomic_check = drm_plane_helper_atomic_check,
.atomic_check = udl_primary_plane_helper_atomic_check,
.atomic_update = udl_primary_plane_helper_atomic_update,
};

2
include/drm/drm_plane_helper.h
View File

@ -26,7 +26,6 @@
#include <linux/types.h>
struct drm_atomic_state;
struct drm_crtc;
struct drm_framebuffer;
struct drm_modeset_acquire_ctx;
@ -42,7 +41,6 @@ int drm_plane_helper_update_primary(struct drm_plane *plane, struct drm_crtc *cr
int drm_plane_helper_disable_primary(struct drm_plane *plane,
struct drm_modeset_acquire_ctx *ctx);
void drm_plane_helper_destroy(struct drm_plane *plane);
int drm_plane_helper_atomic_check(struct drm_plane *plane, struct drm_atomic_state *state);
/**
* DRM_PLANE_NON_ATOMIC_FUNCS - Default plane functions for non-atomic drivers