diff options
| -rw-r--r-- | drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c index a019cc9bbd54..c4a372286580 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c @@ -268,12 +268,23 @@ static bool vop2_cluster_window(const struct vop2_win *win) return win->data->feature & WIN_FEATURE_CLUSTER; } +/* + * Note: + * The write mask function is documented but missing on rk3566/8, writes + * to these bits have no effect. For newer soc(rk3588 and following) the + * write mask is needed for register writes. + * + * GLB_CFG_DONE_EN has no write mask bit. + * + */ static void vop2_cfg_done(struct vop2_video_port *vp) { struct vop2 *vop2 = vp->vop2; + u32 val = RK3568_REG_CFG_DONE__GLB_CFG_DONE_EN; + + val |= BIT(vp->id) | (BIT(vp->id) << 16); - regmap_set_bits(vop2->map, RK3568_REG_CFG_DONE, - BIT(vp->id) | RK3568_REG_CFG_DONE__GLB_CFG_DONE_EN); + regmap_set_bits(vop2->map, RK3568_REG_CFG_DONE, val); } static void vop2_win_disable(struct vop2_win *win) |