linux-kernel - [PATCH 24/39] drm/loongson: Switch to drm_atomic_get_new_crtc

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Message-Id: <20250825-drm-no-more-existing-state-v1-24-f08ccd9f85c9@kernel.org>
Date: Mon, 25 Aug 2025 15:43:29 +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 24/39] drm/loongson: Switch to
 drm_atomic_get_new_crtc_state()

The loongson 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/loongson/lsdc_plane.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/loongson/lsdc_plane.c b/drivers/gpu/drm/loongson/lsdc_plane.c
index aa9a97f9c4dc28eea3098507ce52e6aa6caa46eb..2967a5cca06936d5d2480fac258b01e11f8d28e1 100644
--- a/drivers/gpu/drm/loongson/lsdc_plane.c
+++ b/drivers/gpu/drm/loongson/lsdc_plane.c
@@ -194,11 +194,11 @@ static int lsdc_cursor_plane_atomic_async_check(struct drm_plane *plane,
 		drm_dbg(plane->dev, "unsupported cursor size: %ux%u\n",
 			new_state->crtc_w, new_state->crtc_h);
 		return -EINVAL;
 	}
 
-	crtc_state = drm_atomic_get_existing_crtc_state(state, new_state->crtc);
+	crtc_state = drm_atomic_get_new_crtc_state(state, new_state->crtc);
 	if (!crtc_state->active)
 		return -EINVAL;
 
 	if (plane->state->crtc != new_state->crtc ||
 	    plane->state->src_w != new_state->src_w ||

-- 
2.50.1