From f6aa529e3a40bc3f1ab333688fdef1ebf1922d6a Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 21 Aug 2026 16:39:30 +0200 Subject: [PATCH] drm/msm: dpu1: Convert to atomic_create_state The dpu1 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. Reviewed-by: Dmitry Baryshkov Reviewed-by: Thomas Zimmermann Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-54-fb793475c05a@kernel.org Signed-off-by: Maxime Ripard --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c index 42d0a529b4d5..77a2d1f6700d 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -1140,17 +1140,17 @@ end: DPU_ATRACE_END("crtc_commit"); } -static void dpu_crtc_reset(struct drm_crtc *crtc) +static struct drm_crtc_state *dpu_crtc_create_state(struct drm_crtc *crtc) { - struct dpu_crtc_state *cstate = kzalloc_obj(*cstate); + struct dpu_crtc_state *cstate; - if (crtc->state) - dpu_crtc_destroy_state(crtc, crtc->state); + cstate = kzalloc_obj(*cstate); + if (!cstate) + return ERR_PTR(-ENOMEM); - if (cstate) - __drm_atomic_helper_crtc_reset(crtc, &cstate->base); - else - __drm_atomic_helper_crtc_reset(crtc, NULL); + __drm_atomic_helper_crtc_state_init(&cstate->base, crtc); + + return &cstate->base; } /** @@ -1843,7 +1843,7 @@ static int dpu_crtc_late_register(struct drm_crtc *crtc) static const struct drm_crtc_funcs dpu_crtc_funcs = { .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, - .reset = dpu_crtc_reset, + .atomic_create_state = dpu_crtc_create_state, .atomic_duplicate_state = dpu_crtc_duplicate_state, .atomic_destroy_state = dpu_crtc_destroy_state, .atomic_print_state = dpu_crtc_atomic_print_state,