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drm/ast: Introduce struct ast_crtc_state 

AST-specific CRTC state can be placed in the new struct ast_crtc_state.
The atomic check functions of the CRTC and the primary plane will store
the VBIOS mode info and the framebuffer format here. The CRTC will consume
these during atomic_flush().

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191202111557.15176-6-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2019-12-02 12:15:55 +01:00
parent ae46a57d52
commit 83be6a3ceb
2 changed files with 33 additions and 2 deletions
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6
drivers/gpu/drm/ast/ast_drv.h
View File

@ -281,6 +281,12 @@ struct ast_vbios_mode_info {
const struct ast_vbios_enhtable *enh_table;
};
struct ast_crtc_state {
struct drm_crtc_state base;
};
#define to_ast_crtc_state(state) container_of(state, struct ast_crtc_state, base)
extern int ast_mode_init(struct drm_device *dev);
extern void ast_mode_fini(struct drm_device *dev);

29
drivers/gpu/drm/ast/ast_mode.c
View File

@ -884,6 +884,31 @@ static void ast_crtc_destroy(struct drm_crtc *crtc)
kfree(crtc);
}
static struct drm_crtc_state *
ast_crtc_atomic_duplicate_state(struct drm_crtc *crtc)
{
struct ast_crtc_state *new_ast_state;
if (WARN_ON(!crtc->state))
return NULL;
new_ast_state = kmalloc(sizeof(*new_ast_state), GFP_KERNEL);
if (!new_ast_state)
return NULL;
__drm_atomic_helper_crtc_duplicate_state(crtc, &new_ast_state->base);
return &new_ast_state->base;
}
static void ast_crtc_atomic_destroy_state(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
struct ast_crtc_state *ast_state = to_ast_crtc_state(state);
__drm_atomic_helper_crtc_destroy_state(&ast_state->base);
kfree(ast_state);
}
static const struct drm_crtc_funcs ast_crtc_funcs = {
.reset = drm_atomic_helper_crtc_reset,
.set_config = drm_crtc_helper_set_config,
@ -891,8 +916,8 @@ static const struct drm_crtc_funcs ast_crtc_funcs = {
.destroy = ast_crtc_destroy,
.set_config = drm_atomic_helper_set_config,
.page_flip = drm_atomic_helper_page_flip,
.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
.atomic_duplicate_state = ast_crtc_atomic_duplicate_state,
.atomic_destroy_state = ast_crtc_atomic_destroy_state,
};
static int ast_crtc_init(struct drm_device *dev)