86 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Copyright (C) STMicroelectronics SA 20144 * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>5 * Fabien Dessenne <fabien.dessenne@st.com>6 * for STMicroelectronics.7 */8 9#ifndef _STI_COMPOSITOR_H_10#define _STI_COMPOSITOR_H_11 12#include <linux/clk.h>13#include <linux/kernel.h>14 15#include "sti_mixer.h"16#include "sti_plane.h"17 18#define WAIT_NEXT_VSYNC_MS 50 /*ms*/19 20#define STI_MAX_MIXER 221#define STI_MAX_VID 122 23enum sti_compositor_subdev_type {24 STI_MIXER_MAIN_SUBDEV,25 STI_MIXER_AUX_SUBDEV,26 STI_GPD_SUBDEV,27 STI_VID_SUBDEV,28 STI_CURSOR_SUBDEV,29};30 31struct sti_compositor_subdev_descriptor {32 enum sti_compositor_subdev_type type;33 int id;34 unsigned int offset;35};36 37/**38 * STI Compositor data structure39 *40 * @nb_subdev: number of subdevices supported by the compositor41 * @subdev_desc: subdev list description42 */43#define MAX_SUBDEV 944struct sti_compositor_data {45 unsigned int nb_subdev;46 struct sti_compositor_subdev_descriptor subdev_desc[MAX_SUBDEV];47};48 49/**50 * STI Compositor structure51 *52 * @dev: driver device53 * @regs: registers (main)54 * @data: device data55 * @clk_compo_main: clock for main compo56 * @clk_compo_aux: clock for aux compo57 * @clk_pix_main: pixel clock for main path58 * @clk_pix_aux: pixel clock for aux path59 * @rst_main: reset control of the main path60 * @rst_aux: reset control of the aux path61 * @mixer: array of mixers62 * @vid: array of vids63 * @vtg: array of vtgs64 * @vtg_vblank_nb: array of callbacks for VTG VSYNC notification65 */66struct sti_compositor {67 struct device *dev;68 void __iomem *regs;69 struct sti_compositor_data data;70 struct clk *clk_compo_main;71 struct clk *clk_compo_aux;72 struct clk *clk_pix_main;73 struct clk *clk_pix_aux;74 struct reset_control *rst_main;75 struct reset_control *rst_aux;76 struct sti_mixer *mixer[STI_MAX_MIXER];77 struct sti_vid *vid[STI_MAX_VID];78 struct sti_vtg *vtg[STI_MAX_MIXER];79 struct notifier_block vtg_vblank_nb[STI_MAX_MIXER];80};81 82void sti_compositor_debugfs_init(struct sti_compositor *compo,83 struct drm_minor *minor);84 85#endif86