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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2012 Russell King
*/
#ifndef ARMADA_DRM_H
#define ARMADA_DRM_H
#include <linux/kfifo.h>
#include <linux/io.h>
#include <linux/workqueue.h>
#include <drm/drm_device.h>
#include <drm/drm_mm.h>
struct armada_crtc;
struct armada_gem_object;
struct clk;
struct drm_display_mode;
struct drm_fb_helper;
static inline void
armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr)
{
uint32_t ov, v;
ov = v = readl_relaxed(ptr);
v = (v & ~mask) | val;
if (ov != v)
writel_relaxed(v, ptr);
}
static inline uint32_t armada_pitch(uint32_t width, uint32_t bpp)
{
uint32_t pitch = bpp != 4 ? width * ((bpp + 7) / 8) : width / 2;
/* 88AP510 spec recommends pitch be a multiple of 128 */
return ALIGN(pitch, 128);
}
struct armada_private;
struct armada_variant {
bool has_spu_adv_reg;
int (*init)(struct armada_crtc *, struct device *);
int (*compute_clock)(struct armada_crtc *,
const struct drm_display_mode *,
uint32_t *);
void (*disable)(struct armada_crtc *);
void (*enable)(struct armada_crtc *, const struct drm_display_mode *);
};
/* Variant ops */
extern const struct armada_variant armada510_ops;
struct armada_private {
struct drm_device drm;
struct drm_fb_helper *fbdev;
struct armada_crtc *dcrtc[2];
struct drm_mm linear; /* protected by linear_lock */
struct mutex linear_lock;
struct drm_property *colorkey_prop;
struct drm_property *colorkey_min_prop;
struct drm_property *colorkey_max_prop;
struct drm_property *colorkey_val_prop;
struct drm_property *colorkey_alpha_prop;
struct drm_property *colorkey_mode_prop;
struct drm_property *brightness_prop;
struct drm_property *contrast_prop;
struct drm_property *saturation_prop;
#ifdef CONFIG_DEBUG_FS
struct dentry *de;
#endif
};
#define drm_to_armada_dev(dev) container_of(dev, struct armada_private, drm)
int armada_fbdev_init(struct drm_device *);
void armada_fbdev_fini(struct drm_device *);
int armada_overlay_plane_create(struct drm_device *, unsigned long);
void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc);
int armada_drm_debugfs_init(struct drm_minor *);
#endif
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