linux-stable/drivers/gpu/drm/sti/sti_mixer.h
Benjamin Gaignard 83af0a483a drm: sti: use late_register and early_unregister callbacks
Make sti driver use register callback to move debugfs
initialization out of sub-components creation.
This will allow to convert driver .load() to
drm_dev_alloc() and drm_dev_register().

sti_compositor bring up 2 crtc but only one debugfs init is
needed so use drm_crtc_index to do it on the first one.
This can't be done in sti_drv because only sti_compositor have
access to the devices.
It is almost the same for sti_encoder which handle multiple
encoder while one only debugfs entry is needed so add a boolean
to avoid multiple debugfs initialization

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466514580-15194-3-git-send-email-benjamin.gaignard@linaro.org
2016-06-21 21:32:52 +02:00

66 lines
1.7 KiB
C

/*
* Copyright (C) STMicroelectronics SA 2014
* Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
* Fabien Dessenne <fabien.dessenne@st.com>
* for STMicroelectronics.
* License terms: GNU General Public License (GPL), version 2
*/
#ifndef _STI_MIXER_H_
#define _STI_MIXER_H_
#include <drm/drmP.h>
#include "sti_plane.h"
#define to_sti_mixer(x) container_of(x, struct sti_mixer, drm_crtc)
enum sti_mixer_status {
STI_MIXER_READY,
STI_MIXER_DISABLING,
STI_MIXER_DISABLED,
};
/**
* STI Mixer subdevice structure
*
* @dev: driver device
* @regs: mixer registers
* @id: id of the mixer
* @drm_crtc: crtc object link to the mixer
* @pending_event: set if a flip event is pending on crtc
* @status: to know the status of the mixer
*/
struct sti_mixer {
struct device *dev;
void __iomem *regs;
int id;
struct drm_crtc drm_crtc;
struct drm_pending_vblank_event *pending_event;
enum sti_mixer_status status;
};
const char *sti_mixer_to_str(struct sti_mixer *mixer);
struct sti_mixer *sti_mixer_create(struct device *dev,
struct drm_device *drm_dev,
int id,
void __iomem *baseaddr);
int sti_mixer_set_plane_status(struct sti_mixer *mixer,
struct sti_plane *plane, bool status);
int sti_mixer_set_plane_depth(struct sti_mixer *mixer, struct sti_plane *plane);
int sti_mixer_active_video_area(struct sti_mixer *mixer,
struct drm_display_mode *mode);
void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable);
int sti_mixer_debugfs_init(struct sti_mixer *mixer, struct drm_minor *minor);
/* depth in Cross-bar control = z order */
#define GAM_MIXER_NB_DEPTH_LEVEL 6
#define STI_MIXER_MAIN 0
#define STI_MIXER_AUX 1
#endif