linux-kernel - [PATCH v2 2/8] drm/rockchip: vop: add lut_size for RK3368 vop

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Message-Id: <20250905025632.222422-3-cn.liweihao@gmail.com>
Date: Fri,  5 Sep 2025 10:56:26 +0800
From: WeiHao Li <cn.liweihao@...il.com>
To: heiko@...ech.de,
	robh@...nel.org
Cc: hjc@...k-chips.com,
	andy.yan@...k-chips.com,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-clk@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	WeiHao Li <cn.liweihao@...il.com>
Subject: [PATCH v2 2/8] drm/rockchip: vop: add lut_size for RK3368 vop_data

VOP driver need a correct lut_size to work normally. According to
rockchip downstream kernel source [1], the lut_size is 0x400.

[1] https://github.com/rockchip-linux/kernel/blob/develop-4.4/arch/arm64/boot/dts/rockchip/rk3368.dtsi#L1497

Signed-off-by: WeiHao Li <cn.liweihao@...il.com>
---
 drivers/gpu/drm/rockchip/rockchip_vop_reg.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
index d1f788763..219f8c2fa 100644
--- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
+++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
@@ -880,6 +880,7 @@ static const struct vop_data rk3368_vop = {
 	.win = rk3368_vop_win_data,
 	.win_size = ARRAY_SIZE(rk3368_vop_win_data),
 	.max_output = { 4096, 2160 },
+	.lut_size = 1024,
 };
 
 static const struct vop_intr rk3366_vop_intr = {
-- 
2.39.5