From 902a278a72fd319caf97666eef54fef35621b293 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 21 Aug 2026 16:39:21 +0200 Subject: [PATCH] drm/komeda: Convert to atomic_create_state The komeda crtc implementation provides a custom reset hook. However, this hook only allocates the state, initializes it with __drm_atomic_helper_crtc_reset(), and frees the previous state. It does not perform any hardware reset. Since this is exactly what the atomic_create_state hook is meant to do, minus the old state cleanup which the caller handles, convert the implementation to use atomic_create_state with __drm_atomic_helper_crtc_state_init() instead. Acked-by: Liviu Dudau Reviewed-by: Thomas Zimmermann Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-45-fb793475c05a@kernel.org Signed-off-by: Maxime Ripard --- .../gpu/drm/arm/display/komeda/komeda_crtc.c | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c index 719568d9f7c2..3d81b413efae 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c @@ -493,19 +493,17 @@ static const struct drm_crtc_helper_funcs komeda_crtc_helper_funcs = { .mode_fixup = komeda_crtc_mode_fixup, }; -static void komeda_crtc_reset(struct drm_crtc *crtc) +static struct drm_crtc_state *komeda_crtc_create_state(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_obj(*state); - if (state) - __drm_atomic_helper_crtc_reset(crtc, &state->base); + if (!state) + return ERR_PTR(-ENOMEM); + + __drm_atomic_helper_crtc_state_init(&state->base, crtc); + + return &state->base; } static struct drm_crtc_state * @@ -555,7 +553,7 @@ static const struct drm_crtc_funcs komeda_crtc_funcs = { .destroy = drm_crtc_cleanup, .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, - .reset = komeda_crtc_reset, + .atomic_create_state = komeda_crtc_create_state, .atomic_duplicate_state = komeda_crtc_atomic_duplicate_state, .atomic_destroy_state = komeda_crtc_atomic_destroy_state, .enable_vblank = komeda_crtc_vblank_enable,