1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (C) 2012 Russell King 4 */ 5#ifndef ARMADA_DRM_H 6#define ARMADA_DRM_H 7 8#include <linux/kfifo.h> 9#include <linux/io.h> 10#include <linux/workqueue.h> 11 12#include <drm/drm_device.h> 13#include <drm/drm_mm.h> 14 15struct armada_crtc; 16struct armada_gem_object; 17struct clk; 18struct drm_display_mode; 19 20static inline void 21armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr) 22{ 23 uint32_t ov, v; 24 25 ov = v = readl_relaxed(ptr); 26 v = (v & ~mask) | val; 27 if (ov != v) 28 writel_relaxed(v, ptr); 29} 30 31static inline uint32_t armada_pitch(uint32_t width, uint32_t bpp) 32{ 33 uint32_t pitch = bpp != 4 ? width * ((bpp + 7) / 8) : width / 2; 34 35 /* 88AP510 spec recommends pitch be a multiple of 128 */ 36 return ALIGN(pitch, 128); 37} 38 39 40struct armada_private; 41 42struct armada_variant { 43 bool has_spu_adv_reg; 44 int (*init)(struct armada_crtc *, struct device *); 45 int (*compute_clock)(struct armada_crtc *, 46 const struct drm_display_mode *, 47 uint32_t *); 48 void (*disable)(struct armada_crtc *); 49 void (*enable)(struct armada_crtc *, const struct drm_display_mode *); 50}; 51 52/* Variant ops */ 53extern const struct armada_variant armada510_ops; 54 55struct armada_private { 56 struct drm_device drm; 57 struct armada_crtc *dcrtc[2]; 58 struct drm_mm linear; /* protected by linear_lock */ 59 struct mutex linear_lock; 60 struct drm_property *colorkey_prop; 61 struct drm_property *colorkey_min_prop; 62 struct drm_property *colorkey_max_prop; 63 struct drm_property *colorkey_val_prop; 64 struct drm_property *colorkey_alpha_prop; 65 struct drm_property *colorkey_mode_prop; 66 struct drm_property *brightness_prop; 67 struct drm_property *contrast_prop; 68 struct drm_property *saturation_prop; 69#ifdef CONFIG_DEBUG_FS 70 struct dentry *de; 71#endif 72}; 73 74#define drm_to_armada_dev(dev) container_of(dev, struct armada_private, drm) 75 76#if defined(CONFIG_DRM_FBDEV_EMULATION) 77void armada_fbdev_setup(struct drm_device *dev); 78#else 79static inline void armada_fbdev_setup(struct drm_device *dev) 80{ } 81#endif 82 83int armada_overlay_plane_create(struct drm_device *, unsigned long); 84 85void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc); 86int armada_drm_debugfs_init(struct drm_minor *); 87 88#endif 89