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drm: mali-dp: add malidp_crtc_state struct

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Add a custom CRTC state struct to enable storing driver's private
state. This patch only adds the base drm_crtc_state struct and
the atomic functions that handle it.

Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
This commit is contained in:
Mihail Atanassov 2017-02-01 14:48:49 +00:00 committed by Liviu Dudau
parent fe10cd677c
commit 99665d0721
2 changed files with 55 additions and 3 deletions
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52
drivers/gpu/drm/arm/malidp_crtc.c
View File

@ -178,6 +178,52 @@ static const struct drm_crtc_helper_funcs malidp_crtc_helper_funcs = {
.atomic_check = malidp_crtc_atomic_check,
};
static struct drm_crtc_state *malidp_crtc_duplicate_state(struct drm_crtc *crtc)
{
struct malidp_crtc_state *state;
if (WARN_ON(!crtc->state))
return NULL;
state = kmalloc(sizeof(*state), GFP_KERNEL);
if (!state)
return NULL;
__drm_atomic_helper_crtc_duplicate_state(crtc, &state->base);
return &state->base;
}
static void malidp_crtc_reset(struct drm_crtc *crtc)
{
struct malidp_crtc_state *state = NULL;
if (crtc->state) {
state = to_malidp_crtc_state(crtc->state);
__drm_atomic_helper_crtc_destroy_state(crtc->state);
}
kfree(state);
state = kzalloc(sizeof(*state), GFP_KERNEL);
if (state) {
crtc->state = &state->base;
crtc->state->crtc = crtc;
}
}
static void malidp_crtc_destroy_state(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
struct malidp_crtc_state *mali_state = NULL;
if (state) {
mali_state = to_malidp_crtc_state(state);
__drm_atomic_helper_crtc_destroy_state(state);
}
kfree(mali_state);
}
static int malidp_crtc_enable_vblank(struct drm_crtc *crtc)
{
struct malidp_drm *malidp = crtc_to_malidp_device(crtc);
@ -201,9 +247,9 @@ static const struct drm_crtc_funcs malidp_crtc_funcs = {
.destroy = drm_crtc_cleanup,
.set_config = drm_atomic_helper_set_config,
.page_flip = drm_atomic_helper_page_flip,
.reset = drm_atomic_helper_crtc_reset,
.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
.reset = malidp_crtc_reset,
.atomic_duplicate_state = malidp_crtc_duplicate_state,
.atomic_destroy_state = malidp_crtc_destroy_state,
.enable_vblank = malidp_crtc_enable_vblank,
.disable_vblank = malidp_crtc_disable_vblank,
};

6
drivers/gpu/drm/arm/malidp_drv.h
View File

@ -48,6 +48,12 @@ struct malidp_plane_state {
#define to_malidp_plane(x) container_of(x, struct malidp_plane, base)
#define to_malidp_plane_state(x) container_of(x, struct malidp_plane_state, base)
struct malidp_crtc_state {
struct drm_crtc_state base;
};
#define to_malidp_crtc_state(x) container_of(x, struct malidp_crtc_state, base)
int malidp_de_planes_init(struct drm_device *drm);
void malidp_de_planes_destroy(struct drm_device *drm);
int malidp_crtc_init(struct drm_device *drm);