drm/rockchip: vop2: Add platform specific callback

The VOP interface mux, overlay, background delay cycle configuration
of different SOC are much different. Add platform specific callback
ops to let the core driver look cleaner and more refined.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Tested-by: Michael Riesch <michael.riesch@wolfvision.net> # on RK3568
Tested-by: Detlev Casanova <detlev.casanova@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20250218112744.34433-4-andyshrk@163.com

drivers/gpu/drm/rockchip/rockchip_drm_vop2.h

@@ -9,6 +9,7 @@
 
 #include <linux/regmap.h>
 #include <drm/drm_modes.h>
+#include <dt-bindings/soc/rockchip,vop2.h>
 #include "rockchip_drm_drv.h"
 #include "rockchip_drm_vop.h"
 
@@ -58,6 +59,23 @@ enum vop2_scale_down_mode {
 #define VOP2_PD_DSC_4K		BIT(6)
 #define VOP2_PD_ESMART		BIT(7)
 
+#define vop2_output_if_is_hdmi(x)	((x) == ROCKCHIP_VOP2_EP_HDMI0 || \
+					 (x) == ROCKCHIP_VOP2_EP_HDMI1)
+
+#define vop2_output_if_is_dp(x)		((x) == ROCKCHIP_VOP2_EP_DP0 || \
+					 (x) == ROCKCHIP_VOP2_EP_DP1)
+
+#define vop2_output_if_is_edp(x)	((x) == ROCKCHIP_VOP2_EP_EDP0 || \
+					 (x) == ROCKCHIP_VOP2_EP_EDP1)
+
+#define vop2_output_if_is_mipi(x)	((x) == ROCKCHIP_VOP2_EP_MIPI0 || \
+					 (x) == ROCKCHIP_VOP2_EP_MIPI1)
+
+#define vop2_output_if_is_lvds(x)	((x) == ROCKCHIP_VOP2_EP_LVDS0 || \
+					 (x) == ROCKCHIP_VOP2_EP_LVDS1)
+
+#define vop2_output_if_is_dpi(x)	((x) == ROCKCHIP_VOP2_EP_RGB0)
+
 enum vop2_win_regs {
 	VOP2_WIN_ENABLE,
 	VOP2_WIN_FORMAT,
@@ -162,6 +180,23 @@ struct vop2_win_data {
 	const u8 dly[VOP2_DLY_MODE_MAX];
 };
 
+struct vop2_win {
+	struct vop2 *vop2;
+	struct drm_plane base;
+	const struct vop2_win_data *data;
+	struct regmap_field *reg[VOP2_WIN_MAX_REG];
+
+	/**
+	 * @win_id: graphic window id, a cluster may be split into two
+	 * graphics windows.
+	 */
+	u8 win_id;
+	u8 delay;
+	u32 offset;
+
+	enum drm_plane_type type;
+};
+
 struct vop2_video_port_data {
 	unsigned int id;
 	u32 feature;
@@ -172,20 +207,108 @@ struct vop2_video_port_data {
 	unsigned int offset;
 };
 
+struct vop2_video_port {
+	struct drm_crtc crtc;
+	struct vop2 *vop2;
+	struct clk *dclk;
+	struct clk *dclk_src;
+	unsigned int id;
+	const struct vop2_video_port_data *data;
+
+	struct completion dsp_hold_completion;
+
+	/**
+	 * @win_mask: Bitmask of windows attached to the video port;
+	 */
+	u32 win_mask;
+
+	struct vop2_win *primary_plane;
+	struct drm_pending_vblank_event *event;
+
+	unsigned int nlayers;
+};
+
+/**
+ * struct vop2_ops - helper operations for vop2 hardware
+ *
+ * These hooks are used by the common part of the vop2 driver to
+ * implement the proper behaviour of different variants.
+ */
+struct vop2_ops {
+	unsigned long (*setup_intf_mux)(struct vop2_video_port *vp, int ep_id, u32 polflags);
+	void (*setup_bg_dly)(struct vop2_video_port *vp);
+	void (*setup_overlay)(struct vop2_video_port *vp);
+};
+
 struct vop2_data {
 	u8 nr_vps;
 	u64 feature;
+	const struct vop2_ops *ops;
 	const struct vop2_win_data *win;
 	const struct vop2_video_port_data *vp;
+	const struct reg_field *cluster_reg;
+	const struct reg_field *smart_reg;
 	const struct vop2_regs_dump *regs_dump;
 	struct vop_rect max_input;
 	struct vop_rect max_output;
 
+	unsigned int nr_cluster_regs;
+	unsigned int nr_smart_regs;
 	unsigned int win_size;
 	unsigned int regs_dump_size;
 	unsigned int soc_id;
 };
 
+struct vop2 {
+	struct device *dev;
+	struct drm_device *drm;
+	struct vop2_video_port vps[ROCKCHIP_MAX_CRTC];
+
+	const struct vop2_data *data;
+	const struct vop2_ops *ops;
+	/*
+	 * Number of windows that are registered as plane, may be less than the
+	 * total number of hardware windows.
+	 */
+	u32 registered_num_wins;
+
+	struct resource *res;
+	void __iomem *regs;
+	struct regmap *map;
+
+	struct regmap *sys_grf;
+	struct regmap *vop_grf;
+	struct regmap *vo1_grf;
+	struct regmap *sys_pmu;
+
+	/* physical map length of vop2 register */
+	u32 len;
+
+	void __iomem *lut_regs;
+
+	/* protects crtc enable/disable */
+	struct mutex vop2_lock;
+
+	int irq;
+
+	/*
+	 * Some global resources are shared between all video ports(crtcs), so
+	 * we need a ref counter here.
+	 */
+	unsigned int enable_count;
+	struct clk *hclk;
+	struct clk *aclk;
+	struct clk *pclk;
+	struct clk *pll_hdmiphy0;
+	struct clk *pll_hdmiphy1;
+
+	/* optional internal rgb encoder */
+	struct rockchip_rgb *rgb;
+
+	/* must be put at the end of the struct */
+	struct vop2_win win[];
+};
+
 /* interrupt define */
 #define FS_NEW_INTR			BIT(4)
 #define ADDR_SAME_INTR			BIT(5)
@@ -560,4 +683,52 @@ enum vop2_layer_phy_id {
 
 extern const struct component_ops vop2_component_ops;
 
+static inline void vop2_writel(struct vop2 *vop2, u32 offset, u32 v)
+{
+	regmap_write(vop2->map, offset, v);
+}
+
+static inline void vop2_vp_write(struct vop2_video_port *vp, u32 offset, u32 v)
+{
+	regmap_write(vp->vop2->map, vp->data->offset + offset, v);
+}
+
+static inline u32 vop2_readl(struct vop2 *vop2, u32 offset)
+{
+	u32 val;
+
+	regmap_read(vop2->map, offset, &val);
+
+	return val;
+}
+
+static inline u32 vop2_vp_read(struct vop2_video_port *vp, u32 offset)
+{
+	u32 val;
+
+	regmap_read(vp->vop2->map, vp->data->offset + offset, &val);
+
+	return val;
+}
+
+static inline void vop2_win_write(const struct vop2_win *win, unsigned int reg, u32 v)
+{
+	regmap_field_write(win->reg[reg], v);
+}
+
+static inline bool vop2_cluster_window(const struct vop2_win *win)
+{
+	return win->data->feature & WIN_FEATURE_CLUSTER;
+}
+
+static inline struct vop2_video_port *to_vop2_video_port(struct drm_crtc *crtc)
+{
+	return container_of(crtc, struct vop2_video_port, crtc);
+}
+
+static inline struct vop2_win *to_vop2_win(struct drm_plane *p)
+{
+	return container_of(p, struct vop2_win, base);
+}
+
 #endif /* _ROCKCHIP_DRM_VOP2_H */