linux-kernel - [PATCH v3 3/8] drm/rockchip: vop2: Fix Esmart test condition

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Message-Id: <20251209-vop2-atomic-fixups-v3-3-07c48f0f1f0d@collabora.com>
Date: Tue, 09 Dec 2025 12:14:16 +0100
From: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
To: Chaoyi Chen <chaoyi.chen@...k-chips.com>, 
 Sandy Huang <hjc@...k-chips.com>, 
 Heiko Stübner <heiko@...ech.de>, 
 Andy Yan <andy.yan@...k-chips.com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>
Cc: Daniel Stone <daniels@...labora.com>, dri-devel@...ts.freedesktop.org, 
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, kernel@...labora.com, 
 Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
Subject: [PATCH v3 3/8] drm/rockchip: vop2: Fix Esmart test condition

From: Daniel Stone <daniels@...labora.com>

If we want to find out if a window is Esmart or not, test for not being
a cluster window, rather than AFBDC presence.

No functional effect as only cluster windows support AFBC decode.

Signed-off-by: Daniel Stone <daniels@...labora.com>
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
---
 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
index 81b3eba07095..9d715d7659af 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
@@ -1230,12 +1230,10 @@ static void vop2_plane_atomic_update(struct drm_plane *plane,
 	 * This is workaround solution for IC design:
 	 * esmart can't support scale down when src_w % 16 == 1.
 	 */
-	if (!(win->data->feature & WIN_FEATURE_AFBDC)) {
-		if (src_w > dsp_w && (src_w & 0xf) == 1) {
-			drm_dbg_kms(vop2->drm, "vp%d %s act_w[%d] MODE 16 == 1\n",
-				    vp->id, win->data->name, src_w);
-			src_w -= 1;
-		}
+	if (!vop2_cluster_window(win) && src_w > dsp_w && (src_w & 1)) {
+		drm_dbg_kms(vop2->drm, "vp%d %s act_w[%d] MODE 16 == 1\n",
+			    vp->id, win->data->name, src_w);
+		src_w -= 1;
 	}
 
 	if (afbc_en && src_w % 4) {

-- 
2.52.0