1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (C) STMicroelectronics SA 2014 4 * 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 2 21 #define STI_MAX_VID 1 22 23 enum 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 31 struct 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 structure 39 * 40 * @nb_subdev: number of subdevices supported by the compositor 41 * @subdev_desc: subdev list description 42 */ 43 #define MAX_SUBDEV 9 44 struct sti_compositor_data { 45 unsigned int nb_subdev; 46 struct sti_compositor_subdev_descriptor subdev_desc[MAX_SUBDEV]; 47 }; 48 49 /** 50 * STI Compositor structure 51 * 52 * @dev: driver device 53 * @regs: registers (main) 54 * @data: device data 55 * @clk_compo_main: clock for main compo 56 * @clk_compo_aux: clock for aux compo 57 * @clk_pix_main: pixel clock for main path 58 * @clk_pix_aux: pixel clock for aux path 59 * @rst_main: reset control of the main path 60 * @rst_aux: reset control of the aux path 61 * @mixer: array of mixers 62 * @vid: array of vids 63 * @vtg: array of vtgs 64 * @vtg_vblank_nb: array of callbacks for VTG VSYNC notification 65 */ 66 struct 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 82 void sti_compositor_debugfs_init(struct sti_compositor *compo, 83 struct drm_minor *minor); 84 85 #endif 86