1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 *  ARM HDLCD Controller register definition
 4 */
 5
 6#ifndef __HDLCD_DRV_H__
 7#define __HDLCD_DRV_H__
 8
 9struct hdlcd_drm_private {
10	void __iomem			*mmio;
11	struct clk			*clk;
12	struct drm_crtc			crtc;
13	struct drm_plane		*plane;
14#ifdef CONFIG_DEBUG_FS
15	atomic_t buffer_underrun_count;
16	atomic_t bus_error_count;
17	atomic_t vsync_count;
18	atomic_t dma_end_count;
19#endif
20};
21
22#define crtc_to_hdlcd_priv(x)	container_of(x, struct hdlcd_drm_private, crtc)
23
24static inline void hdlcd_write(struct hdlcd_drm_private *hdlcd,
25			       unsigned int reg, u32 value)
26{
27	writel(value, hdlcd->mmio + reg);
28}
29
30static inline u32 hdlcd_read(struct hdlcd_drm_private *hdlcd, unsigned int reg)
31{
32	return readl(hdlcd->mmio + reg);
33}
34
35int hdlcd_setup_crtc(struct drm_device *dev);
36void hdlcd_set_scanout(struct hdlcd_drm_private *hdlcd);
37
38#endif /* __HDLCD_DRV_H__ */