linux-kernel - [PATCH 19/39] drm/imx-dcss: Switch to drm_atomic_get_new_crtc

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Message-Id: <20250825-drm-no-more-existing-state-v1-19-f08ccd9f85c9@kernel.org>
Date: Mon, 25 Aug 2025 15:43:24 +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>, 
 Simona Vetter <simona@...ll.ch>, Louis Chauvet <louis.chauvet@...tlin.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 19/39] drm/imx-dcss: Switch to
 drm_atomic_get_new_crtc_state()

The imx-dcss atomic_check implementation uses the deprecated
drm_atomic_get_existing_crtc_state() helper.

This hook is called as part of the global atomic_check, thus before the
states are swapped. The existing state thus points to the new state, and
we can use drm_atomic_get_new_crtc_state() instead.

Signed-off-by: Maxime Ripard <mripard@...nel.org>
---
 drivers/gpu/drm/imx/dcss/dcss-plane.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/imx/dcss/dcss-plane.c b/drivers/gpu/drm/imx/dcss/dcss-plane.c
index ab6d32bad756d080e1c56d7574403febceff94f4..3a063a53c8dfa6bc5bbbf9afc7ff6519199c2f19 100644
--- a/drivers/gpu/drm/imx/dcss/dcss-plane.c
+++ b/drivers/gpu/drm/imx/dcss/dcss-plane.c
@@ -157,12 +157,12 @@ static int dcss_plane_atomic_check(struct drm_plane *plane,
 		return 0;
 
 	dma_obj = drm_fb_dma_get_gem_obj(fb, 0);
 	WARN_ON(!dma_obj);
 
-	crtc_state = drm_atomic_get_existing_crtc_state(state,
-							new_plane_state->crtc);
+	crtc_state = drm_atomic_get_new_crtc_state(state,
+						   new_plane_state->crtc);
 
 	hdisplay = crtc_state->adjusted_mode.hdisplay;
 	vdisplay = crtc_state->adjusted_mode.vdisplay;
 
 	if (!dcss_plane_is_source_size_allowed(new_plane_state->src_w >> 16,

-- 
2.50.1