LXR linux/drivers/gpu/drm/arm/hdlcd

   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        unsigned int                    irq;
  15#ifdef CONFIG_DEBUG_FS
  16        atomic_t buffer_underrun_count;
  17        atomic_t bus_error_count;
  18        atomic_t vsync_count;
  19        atomic_t dma_end_count;
  20#endif
  21};
  22
  23#define crtc_to_hdlcd_priv(x)   container_of(x, struct hdlcd_drm_private, crtc)
  24
  25static inline void hdlcd_write(struct hdlcd_drm_private *hdlcd,
  26                               unsigned int reg, u32 value)
  27{
  28        writel(value, hdlcd->mmio + reg);
  29}
  30
  31static inline u32 hdlcd_read(struct hdlcd_drm_private *hdlcd, unsigned int reg)
  32{
  33        return readl(hdlcd->mmio + reg);
  34}
  35
  36int hdlcd_setup_crtc(struct drm_device *dev);
  37void hdlcd_set_scanout(struct hdlcd_drm_private *hdlcd);
  38
  39#endif /* __HDLCD_DRV_H__ */
  40