linux-kernel - [PATCH 07/39] drm/atomic: Convert drm_atomic_get_plane

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Message-Id: <20250825-drm-no-more-existing-state-v1-7-f08ccd9f85c9@kernel.org>
Date: Mon, 25 Aug 2025 15:43:12 +0200
From: Maxime Ripard <mripard@...nel.org>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, 
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Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 linux-mips@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-samsung-soc@...r.kernel.org, imx@...ts.linux.dev, 
 linux-mediatek@...ts.infradead.org, linux-arm-msm@...r.kernel.org, 
 freedreno@...ts.freedesktop.org, linux-rockchip@...ts.infradead.org, 
 linux-sunxi@...ts.linux.dev, linux-tegra@...r.kernel.org, 
 Maxime Ripard <mripard@...nel.org>
Subject: [PATCH 07/39] drm/atomic: Convert drm_atomic_get_plane_state() to
 use new plane state

The drm_atomic_get_plane_state() function calls the deprecated
drm_atomic_get_existing_plane_state() helper to get find if a plane
state had already been allocated and was part of the given
drm_atomic_state.

At the point in time where drm_atomic_get_plane_state() can be called
(ie, during atomic_check), the existing state is the new state and
drm_atomic_get_existing_plane_state() can thus be replaced by
drm_atomic_get_new_plane_state().

Signed-off-by: Maxime Ripard <mripard@...nel.org>
---
 drivers/gpu/drm/drm_atomic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 30b7ec05a1af07075e40cd2822ecfd67df004ba2..a9d1265e34602c454866869b81b8837b2c0a97a4 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -532,11 +532,11 @@ drm_atomic_get_plane_state(struct drm_atomic_state *state,
 	/* the legacy pointers should never be set */
 	WARN_ON(plane->fb);
 	WARN_ON(plane->old_fb);
 	WARN_ON(plane->crtc);
 
-	plane_state = drm_atomic_get_existing_plane_state(state, plane);
+	plane_state = drm_atomic_get_new_plane_state(state, plane);
 	if (plane_state)
 		return plane_state;
 
 	ret = drm_modeset_lock(&plane->mutex, state->acquire_ctx);
 	if (ret)

-- 
2.50.1