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Commit 99665d07 authored by Mihail Atanassov's avatar Mihail Atanassov Committed by Liviu Dudau
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drm: mali-dp: add malidp_crtc_state struct 



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: default avatarMihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: default avatarLiviu Dudau <Liviu.Dudau@arm.com>
parent fe10cd67

drivers/gpu/drm/arm/malidp_crtc.c

+49 −3
Original line number Diff line number Diff line
@@ -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,

};

drivers/gpu/drm/arm/malidp_drv.h

+6 −0
Original line number Diff line number Diff line
@@ -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);