diff options
Diffstat (limited to 'drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.h')
| -rw-r--r-- | drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.h b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.h new file mode 100644 index 000000000..cbba38acc --- /dev/null +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.h @@ -0,0 +1,89 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * RZ/G2L Display Unit CRTCs + * + * Copyright (C) 2023 Renesas Electronics Corporation + * + * Based on rcar_du_crtc.h + */ + +#ifndef __RZG2L_DU_CRTC_H__ +#define __RZG2L_DU_CRTC_H__ + +#include <linux/container_of.h> +#include <linux/mutex.h> +#include <linux/spinlock.h> +#include <linux/wait.h> + +#include <drm/drm_crtc.h> +#include <drm/drm_writeback.h> + +#include <media/vsp1.h> + +struct clk; +struct reset_control; +struct rzg2l_du_vsp; +struct rzg2l_du_format_info; + +/** + * struct rzg2l_du_crtc - the CRTC, representing a DU superposition processor + * @crtc: base DRM CRTC + * @dev: the DU device + * @initialized: whether the CRTC has been initialized and clocks enabled + * @vblank_enable: whether vblank events are enabled on this CRTC + * @event: event to post when the pending page flip completes + * @flip_wait: wait queue used to signal page flip completion + * @vsp: VSP feeding video to this CRTC + * @vsp_pipe: index of the VSP pipeline feeding video to this CRTC + * @rstc: reset controller + * @rzg2l_clocks: the bus, main and video clock + */ +struct rzg2l_du_crtc { + struct drm_crtc crtc; + + struct rzg2l_du_device *dev; + bool initialized; + + bool vblank_enable; + struct drm_pending_vblank_event *event; + wait_queue_head_t flip_wait; + + struct rzg2l_du_vsp *vsp; + unsigned int vsp_pipe; + + const char *const *sources; + unsigned int sources_count; + + struct reset_control *rstc; + struct { + struct clk *aclk; + struct clk *pclk; + struct clk *dclk; + } rzg2l_clocks; +}; + +static inline struct rzg2l_du_crtc *to_rzg2l_crtc(struct drm_crtc *c) +{ + return container_of(c, struct rzg2l_du_crtc, crtc); +} + +/** + * struct rzg2l_du_crtc_state - Driver-specific CRTC state + * @state: base DRM CRTC state + * @outputs: bitmask of the outputs (enum rzg2l_du_output) driven by this CRTC + */ +struct rzg2l_du_crtc_state { + struct drm_crtc_state state; + unsigned int outputs; +}; + +static inline struct rzg2l_du_crtc_state *to_rzg2l_crtc_state(struct drm_crtc_state *s) +{ + return container_of(s, struct rzg2l_du_crtc_state, state); +} + +int rzg2l_du_crtc_create(struct rzg2l_du_device *rcdu); + +void rzg2l_du_crtc_finish_page_flip(struct rzg2l_du_crtc *rcrtc); + +#endif /* __RZG2L_DU_CRTC_H__ */ |