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drm/rockchip: vop2: disable layer mix when it's unused

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If the layer pass through layer mix is unused, we need to disable alpha,
at this time, the layer mix only used to transfer alpha to next mix.

Change-Id: Ibd469b4fb61b41480297bc20c346e9ceefa61fc7
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
This commit is contained in:
Sandy Huang
2021-04-02 18:20:16 +08:00
parent 3d6f4474dc
commit c495f593fe
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
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@@ -4497,13 +4497,16 @@ static void vop2_setup_alpha(struct vop2_video_port *vp,
/* Transfer pixel alpha value to next mix */
alpha_config.src_premulti_en = true;
alpha_config.dst_premulti_en = true;
alpha_config.src_pixel_alpha_en = true;
alpha_config.src_pixel_alpha_en = false;
alpha_config.src_glb_alpha_value = 0xff;
alpha_config.dst_glb_alpha_value = 0xff;
vop2_parse_alpha(&alpha_config, &alpha);
for (; i < hweight32(vp->win_mask); i++) {
offset = (mixer_id + i - 1) * 0x10;
vop2_writel(vop2, src_color_ctrl_offset + offset, alpha.src_alpha_ctrl.val);
vop2_writel(vop2, dst_color_ctrl_offset + offset, alpha.dst_color_ctrl.val);
vop2_writel(vop2, src_alpha_ctrl_offset + offset, alpha.src_alpha_ctrl.val);
vop2_writel(vop2, dst_alpha_ctrl_offset + offset, alpha.dst_alpha_ctrl.val);
}