1 files changed, 126 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h
new file mode 100644
index 000000000000..dd99e1c21a1e
--- /dev/null
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _DPU_HW_PINGPONG_H
+#define _DPU_HW_PINGPONG_H
+
+#include "dpu_hw_catalog.h"
+#include "dpu_hw_mdss.h"
+#include "dpu_hw_util.h"
+
+#define DITHER_MATRIX_SZ 16
+
+struct dpu_hw_pingpong;
+
+/**
+ * struct dpu_hw_dither_cfg - dither feature structure
+ * @flags: for customizing operations
+ * @temporal_en: temperal dither enable
+ * @c0_bitdepth: c0 component bit depth
+ * @c1_bitdepth: c1 component bit depth
+ * @c2_bitdepth: c2 component bit depth
+ * @c3_bitdepth: c2 component bit depth
+ * @matrix: dither strength matrix
+ */
+struct dpu_hw_dither_cfg {
+	u64 flags;
+	u32 temporal_en;
+	u32 c0_bitdepth;
+	u32 c1_bitdepth;
+	u32 c2_bitdepth;
+	u32 c3_bitdepth;
+	u32 matrix[DITHER_MATRIX_SZ];
+};
+
+/**
+ *
+ * struct dpu_hw_pingpong_ops : Interface to the pingpong Hw driver functions
+ *  Assumption is these functions will be called after clocks are enabled
+ *  @enable_tearcheck: program and enable tear check block
+ *  @disable_tearcheck: disable able tear check block
+ *  @setup_dither : function to program the dither hw block
+ *  @get_line_count: obtain current vertical line counter
+ */
+struct dpu_hw_pingpong_ops {
+	/**
+	 * enables vysnc generation and sets up init value of
+	 * read pointer and programs the tear check cofiguration
+	 */
+	int (*enable_tearcheck)(struct dpu_hw_pingpong *pp,
+			struct dpu_hw_tear_check *cfg);
+
+	/**
+	 * disables tear check block
+	 */
+	int (*disable_tearcheck)(struct dpu_hw_pingpong *pp);
+
+	/**
+	 * read, modify, write to either set or clear listening to external TE
+	 * @Return: 1 if TE was originally connected, 0 if not, or -ERROR
+	 */
+	int (*connect_external_te)(struct dpu_hw_pingpong *pp,
+			bool enable_external_te);
+
+	/**
+	 * Obtain current vertical line counter
+	 */
+	u32 (*get_line_count)(struct dpu_hw_pingpong *pp);
+
+	/**
+	 * Disable autorefresh if enabled
+	 */
+	void (*disable_autorefresh)(struct dpu_hw_pingpong *pp, uint32_t encoder_id, u16 vdisplay);
+
+	/**
+	 * Setup dither matix for pingpong block
+	 */
+	void (*setup_dither)(struct dpu_hw_pingpong *pp,
+			struct dpu_hw_dither_cfg *cfg);
+	/**
+	 * Enable DSC
+	 */
+	int (*enable_dsc)(struct dpu_hw_pingpong *pp);
+
+	/**
+	 * Disable DSC
+	 */
+	void (*disable_dsc)(struct dpu_hw_pingpong *pp);
+
+	/**
+	 * Setup DSC
+	 */
+	int (*setup_dsc)(struct dpu_hw_pingpong *pp);
+};
+
+struct dpu_hw_merge_3d;
+
+struct dpu_hw_pingpong {
+	struct dpu_hw_blk base;
+	struct dpu_hw_blk_reg_map hw;
+
+	/* pingpong */
+	enum dpu_pingpong idx;
+	const struct dpu_pingpong_cfg *caps;
+	struct dpu_hw_merge_3d *merge_3d;
+
+	/* ops */
+	struct dpu_hw_pingpong_ops ops;
+};
+
+/**
+ * to_dpu_hw_pingpong - convert base object dpu_hw_base to container
+ * @hw: Pointer to base hardware block
+ * return: Pointer to hardware block container
+ */
+static inline struct dpu_hw_pingpong *to_dpu_hw_pingpong(struct dpu_hw_blk *hw)
+{
+	return container_of(hw, struct dpu_hw_pingpong, base);
+}
+
+struct dpu_hw_pingpong *dpu_hw_pingpong_init(struct drm_device *dev,
+					     const struct dpu_pingpong_cfg *cfg,
+					     void __iomem *addr,
+					     const struct dpu_mdss_version *mdss_rev);
+
+#endif /*_DPU_HW_PINGPONG_H */