linux-kernel - [PATCH v2 05/12] drm/rockchip: vop2: Set YUV/RGB overlay mode

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Message-Id: <20231122125438.3454608-1-andyshrk@163.com>
Date:   Wed, 22 Nov 2023 20:54:38 +0800
From:   Andy Yan <andyshrk@....com>
To:     heiko@...ech.de
Cc:     hjc@...k-chips.com, dri-devel@...ts.freedesktop.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
        devicetree@...r.kernel.org, sebastian.reichel@...labora.com,
        kever.yang@...k-chips.com, chris.obbard@...labora.com,
        s.hauer@...gutronix.de, Andy Yan <andy.yan@...k-chips.com>
Subject: [PATCH v2 05/12] drm/rockchip: vop2: Set YUV/RGB overlay mode

From: Andy Yan <andy.yan@...k-chips.com>

Set overlay mode register according to the
output mode is yuv or rgb.

Signed-off-by: Andy Yan <andy.yan@...k-chips.com>
---

(no changes since v1)

 drivers/gpu/drm/rockchip/rockchip_drm_drv.h  |  1 +
 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 19 ++++++++++++++++---
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
index 3d8ab2defa1b..7a58c5c9d4ec 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
@@ -51,6 +51,7 @@ struct rockchip_crtc_state {
 	u32 bus_format;
 	u32 bus_flags;
 	int color_space;
+	bool yuv_overlay;
 };
 #define to_rockchip_crtc_state(s) \
 		container_of(s, struct rockchip_crtc_state, base)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
index a019cc9bbd54..b32a291c5caa 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
@@ -1612,6 +1612,8 @@ static void vop2_crtc_atomic_enable(struct drm_crtc *crtc,
 
 	vop2->enable_count++;
 
+	vcstate->yuv_overlay = is_yuv_output(vcstate->bus_format);
+
 	vop2_crtc_enable_irq(vp, VP_INT_POST_BUF_EMPTY);
 
 	polflags = 0;
@@ -1639,7 +1641,7 @@ static void vop2_crtc_atomic_enable(struct drm_crtc *crtc,
 	if (vop2_output_uv_swap(vcstate->bus_format, vcstate->output_mode))
 		dsp_ctrl |= RK3568_VP_DSP_CTRL__DSP_RB_SWAP;
 
-	if (is_yuv_output(vcstate->bus_format))
+	if (vcstate->yuv_overlay)
 		dsp_ctrl |= RK3568_VP_DSP_CTRL__POST_DSP_OUT_R2Y;
 
 	vop2_dither_setup(crtc, &dsp_ctrl);
@@ -1948,10 +1950,12 @@ static void vop2_setup_layer_mixer(struct vop2_video_port *vp)
 	u16 hdisplay;
 	u32 bg_dly;
 	u32 pre_scan_dly;
+	u32 ovl_ctrl;
 	int i;
 	struct vop2_video_port *vp0 = &vop2->vps[0];
 	struct vop2_video_port *vp1 = &vop2->vps[1];
 	struct vop2_video_port *vp2 = &vop2->vps[2];
+	struct rockchip_crtc_state *vcstate = to_rockchip_crtc_state(vp->crtc.state);
 
 	adjusted_mode = &vp->crtc.state->adjusted_mode;
 	hsync_len = adjusted_mode->crtc_hsync_end - adjusted_mode->crtc_hsync_start;
@@ -1964,7 +1968,14 @@ static void vop2_setup_layer_mixer(struct vop2_video_port *vp)
 	pre_scan_dly = ((bg_dly + (hdisplay >> 1) - 1) << 16) | hsync_len;
 	vop2_vp_write(vp, RK3568_VP_PRE_SCAN_HTIMING, pre_scan_dly);
 
-	vop2_writel(vop2, RK3568_OVL_CTRL, 0);
+	ovl_ctrl = vop2_readl(vop2, RK3568_OVL_CTRL);
+	if (vcstate->yuv_overlay)
+		ovl_ctrl |= BIT(vp->id);
+	else
+		ovl_ctrl &= ~BIT(vp->id);
+
+	vop2_writel(vop2, RK3568_OVL_CTRL, ovl_ctrl);
+
 	port_sel = vop2_readl(vop2, RK3568_OVL_PORT_SEL);
 	port_sel &= RK3568_OVL_PORT_SEL__SEL_PORT;
 
@@ -2036,9 +2047,11 @@ static void vop2_setup_layer_mixer(struct vop2_video_port *vp)
 		layer_sel |= RK3568_OVL_LAYER_SEL__LAYER(nlayer + ofs, 5);
 	}
 
+	ovl_ctrl |= RK3568_OVL_CTRL__LAYERSEL_REGDONE_IMD;
+
 	vop2_writel(vop2, RK3568_OVL_LAYER_SEL, layer_sel);
 	vop2_writel(vop2, RK3568_OVL_PORT_SEL, port_sel);
-	vop2_writel(vop2, RK3568_OVL_CTRL, RK3568_OVL_CTRL__LAYERSEL_REGDONE_IMD);
+	vop2_writel(vop2, RK3568_OVL_CTRL, ovl_ctrl);
 }
 
 static void vop2_setup_dly_for_windows(struct vop2 *vop2)
-- 
2.34.1