From: "james qian wang (Arm Technology China)" <james.qian.wang@xxxxxxx>
Added functions:
- komeda_crtc_reset
- komeda_crtc_vblank_enable
- komeda_crtc_vblank_disable
Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@xxxxxxx>
---
.../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 e19ba9468d31..7adda663b956 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 = {
.mode_fixup = komeda_crtc_mode_fixup,
};
+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 = NULL;
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (state) {
+ crtc->state = &state->base;
+ crtc->state->crtc = crtc;
+ }
+}
+
+static struct drm_crtc_state *
+komeda_crtc_atomic_duplicate_state(struct drm_crtc *crtc)
+{
+ struct komeda_crtc_state *old = to_kcrtc_st(crtc->state);
+ struct komeda_crtc_state *new;
+
+ new = kzalloc(sizeof(*new), GFP_KERNEL);
+ if (!new)
+ return NULL;
+
+ __drm_atomic_helper_crtc_duplicate_state(crtc, &new->base);
+
+ new->affected_pipes = 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 = crtc->dev->dev_private;
@@ -365,6 +406,13 @@ static void komeda_crtc_vblank_disable(struct drm_crtc *crtc)
}
static const struct drm_crtc_funcs komeda_crtc_funcs = {
+ .gamma_set = drm_atomic_helper_legacy_gamma_set,
+ .destroy = drm_crtc_cleanup,
+ .set_config = drm_atomic_helper_set_config,
+ .page_flip = drm_atomic_helper_page_flip,
+ .reset = komeda_crtc_reset,
+ .atomic_duplicate_state = komeda_crtc_atomic_duplicate_state,
+ .atomic_destroy_state = komeda_crtc_atomic_destroy_state,
.enable_vblank = komeda_crtc_vblank_enable,
.disable_vblank = komeda_crtc_vblank_disable,
};
--
2.17.1
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