linux_dsm_epyc7002/drivers/gpu/drm/omapdrm/omap_crtc.h
Sebastian Reichel 1bb418bffd drm/omap: add support for manually updated displays
This adds the required infrastructure for manually updated displays,
such as DSI command mode panels. While those panels often support
partial updates we currently always do a full refresh.

The display will be refreshed when something calls the dirty callback,
such as libdrm's drmModeDirtyFB(). This is currently being done at least
by the kernel console and Xorg (with modesetting driver) in their
default configuration. Weston does not implement this and the fbdev
backend does not work (display will not update). Weston's DRM backend
uses double buffering and the page flip will also trigger a display
refresh.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2019-06-10 17:04:15 +03:00

48 lines
1.6 KiB
C

/*
* omap_crtc.h -- OMAP DRM CRTC
*
* Copyright (C) 2011 Texas Instruments
* Author: Rob Clark <rob@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __OMAPDRM_CRTC_H__
#define __OMAPDRM_CRTC_H__
#include <linux/types.h>
enum omap_channel;
struct drm_crtc;
struct drm_device;
struct drm_plane;
struct omap_drm_pipeline;
struct omap_dss_device;
struct videomode;
struct videomode *omap_crtc_timings(struct drm_crtc *crtc);
enum omap_channel omap_crtc_channel(struct drm_crtc *crtc);
void omap_crtc_pre_init(struct omap_drm_private *priv);
void omap_crtc_pre_uninit(struct omap_drm_private *priv);
struct drm_crtc *omap_crtc_init(struct drm_device *dev,
struct omap_drm_pipeline *pipe,
struct drm_plane *plane);
int omap_crtc_wait_pending(struct drm_crtc *crtc);
void omap_crtc_error_irq(struct drm_crtc *crtc, u32 irqstatus);
void omap_crtc_vblank_irq(struct drm_crtc *crtc);
void omap_crtc_framedone_irq(struct drm_crtc *crtc, uint32_t irqstatus);
void omap_crtc_flush(struct drm_crtc *crtc);
#endif /* __OMAPDRM_CRTC_H__ */