1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * RZ/G2L Display Unit CRTCs 4 * 5 * Copyright (C) 2023 Renesas Electronics Corporation 6 * 7 * Based on rcar_du_crtc.h 8 */ 9 10 #ifndef __RZG2L_DU_CRTC_H__ 11 #define __RZG2L_DU_CRTC_H__ 12 13 #include <linux/container_of.h> 14 #include <linux/mutex.h> 15 #include <linux/spinlock.h> 16 #include <linux/wait.h> 17 18 #include <drm/drm_crtc.h> 19 #include <drm/drm_writeback.h> 20 21 #include <media/vsp1.h> 22 23 struct clk; 24 struct reset_control; 25 struct rzg2l_du_vsp; 26 struct rzg2l_du_format_info; 27 28 /** 29 * struct rzg2l_du_crtc - the CRTC, representing a DU superposition processor 30 * @crtc: base DRM CRTC 31 * @dev: the DU device 32 * @initialized: whether the CRTC has been initialized and clocks enabled 33 * @vblank_enable: whether vblank events are enabled on this CRTC 34 * @event: event to post when the pending page flip completes 35 * @flip_wait: wait queue used to signal page flip completion 36 * @vsp: VSP feeding video to this CRTC 37 * @vsp_pipe: index of the VSP pipeline feeding video to this CRTC 38 * @rstc: reset controller 39 * @rzg2l_clocks: the bus, main and video clock 40 */ 41 struct rzg2l_du_crtc { 42 struct drm_crtc crtc; 43 44 struct rzg2l_du_device *dev; 45 bool initialized; 46 47 bool vblank_enable; 48 struct drm_pending_vblank_event *event; 49 wait_queue_head_t flip_wait; 50 51 struct rzg2l_du_vsp *vsp; 52 unsigned int vsp_pipe; 53 54 const char *const *sources; 55 unsigned int sources_count; 56 57 struct reset_control *rstc; 58 struct { 59 struct clk *aclk; 60 struct clk *pclk; 61 struct clk *dclk; 62 } rzg2l_clocks; 63 }; 64 65 static inline struct rzg2l_du_crtc *to_rzg2l_crtc(struct drm_crtc *c) 66 { 67 return container_of(c, struct rzg2l_du_crtc, crtc); 68 } 69 70 /** 71 * struct rzg2l_du_crtc_state - Driver-specific CRTC state 72 * @state: base DRM CRTC state 73 * @outputs: bitmask of the outputs (enum rzg2l_du_output) driven by this CRTC 74 */ 75 struct rzg2l_du_crtc_state { 76 struct drm_crtc_state state; 77 unsigned int outputs; 78 }; 79 80 static inline struct rzg2l_du_crtc_state *to_rzg2l_crtc_state(struct drm_crtc_state *s) 81 { 82 return container_of(s, struct rzg2l_du_crtc_state, state); 83 } 84 85 int rzg2l_du_crtc_create(struct rzg2l_du_device *rcdu); 86 87 void rzg2l_du_crtc_finish_page_flip(struct rzg2l_du_crtc *rcrtc); 88 89 #endif /* __RZG2L_DU_CRTC_H__ */ 90