drm/gem: Move drm_gem_fb_prepare_fb() to GEM atomic helpers
The function drm_gem_fb_prepare_fb() is a helper for atomic modesetting,
but currently located next to framebuffer helpers. Move it to GEM atomic
helpers, rename it slightly and adopt the drivers. Same for the rsp
simple-pipe helper.
Compile-tested with x86-64, aarch64 and arm. The patch is fairly large,
but there are no functional changes.
v3:
* remove out-comented line in drm_gem_framebuffer_helper.h
(Maxime)
v2:
* rename to drm_gem_plane_helper_prepare_fb() (Daniel)
* add tutorial-style documentation
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210222141756.7864-1-tzimmermann@suse.de
diff --git a/drivers/gpu/drm/tiny/st7735r.c b/drivers/gpu/drm/tiny/st7735r.c
index faaba0a..df8872d 100644
--- a/drivers/gpu/drm/tiny/st7735r.c
+++ b/drivers/gpu/drm/tiny/st7735r.c
@@ -19,8 +19,8 @@
#include <drm/drm_atomic_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_fb_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
#include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_managed.h>
#include <drm/drm_mipi_dbi.h>
@@ -136,7 +136,7 @@ static const struct drm_simple_display_pipe_funcs st7735r_pipe_funcs = {
.enable = st7735r_pipe_enable,
.disable = mipi_dbi_pipe_disable,
.update = mipi_dbi_pipe_update,
- .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
+ .prepare_fb = drm_gem_simple_display_pipe_prepare_fb,
};
static const struct st7735r_cfg jd_t18003_t01_cfg = {
