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Subject: [PATCH 08/11] drm/komeda: Add komeda_crtc_funcs
Thread-Topic: [PATCH 08/11] drm/komeda: Add komeda_crtc_funcs
Thread-Index: AQHUm2rHxJ/QoI5+q0mpQIwQisN8JA==
Date:   Mon, 24 Dec 2018 09:26:42 +0000
Message-ID: <20181224092435.2792-9-james.qian.wang@arm.com>
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Added functions:
-  komeda_crtc_reset
-  komeda_crtc_vblank_enable
-  komeda_crtc_vblank_disable

Signed-off-by: James (Qian) Wang <james.qian.wang@arm.com>
---
 .../gpu/drm/arm/display/komeda/komeda_crtc.c  | 48 +++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c b/drivers/gpu=
/drm/arm/display/komeda/komeda_crtc.c
index 6d9fb4626ba5..cc7f67fb08fd 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
@@ -347,6 +347,47 @@ struct drm_crtc_helper_funcs komeda_crtc_helper_funcs =
=3D {
 	.mode_fixup	=3D komeda_crtc_mode_fixup,
 };
=20
+static void komeda_crtc_reset(struct drm_crtc *crtc)
+{
+	struct komeda_crtc_state *state;
+
+	if (crtc->state)
+		__drm_atomic_helper_crtc_destroy_state(crtc->state);
+
+	kfree(to_kcrtc_st(crtc->state));
+	crtc->state =3D NULL;
+
+	state =3D kzalloc(sizeof(*state), GFP_KERNEL);
+	if (state) {
+		crtc->state =3D &state->base;
+		crtc->state->crtc =3D crtc;
+	}
+}
+
+static struct drm_crtc_state *
+komeda_crtc_atomic_duplicate_state(struct drm_crtc *crtc)
+{
+	struct komeda_crtc_state *old =3D to_kcrtc_st(crtc->state);
+	struct komeda_crtc_state *new;
+
+	new =3D kzalloc(sizeof(*new), GFP_KERNEL);
+	if (!new)
+		return NULL;
+
+	__drm_atomic_helper_crtc_duplicate_state(crtc, &new->base);
+
+	new->affected_pipes =3D old->active_pipes;
+
+	return &new->base;
+}
+
+static void komeda_crtc_atomic_destroy_state(struct drm_crtc *crtc,
+					     struct drm_crtc_state *state)
+{
+	__drm_atomic_helper_crtc_destroy_state(state);
+	kfree(to_kcrtc_st(state));
+}
+
 static int komeda_crtc_vblank_enable(struct drm_crtc *crtc)
 {
 	struct komeda_dev *mdev =3D crtc->dev->dev_private;
@@ -365,6 +406,13 @@ static void komeda_crtc_vblank_disable(struct drm_crtc=
 *crtc)
 }
=20
 static const struct drm_crtc_funcs komeda_crtc_funcs =3D {
+	.gamma_set		=3D drm_atomic_helper_legacy_gamma_set,
+	.destroy		=3D drm_crtc_cleanup,
+	.set_config		=3D drm_atomic_helper_set_config,
+	.page_flip		=3D drm_atomic_helper_page_flip,
+	.reset			=3D komeda_crtc_reset,
+	.atomic_duplicate_state	=3D komeda_crtc_atomic_duplicate_state,
+	.atomic_destroy_state	=3D komeda_crtc_atomic_destroy_state,
 	.enable_vblank		=3D komeda_crtc_vblank_enable,
 	.disable_vblank		=3D komeda_crtc_vblank_disable,
 };
--=20
2.17.1