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 15 struct armada_crtc; 16 struct armada_gem_object; 17 struct clk; 18 struct drm_display_mode; 19 20 static inline void 21 armada_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 31 static 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 40 struct armada_private; 41 42 struct 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 */ 53 extern const struct armada_variant armada510_ops; 54 55 struct 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) 77 void armada_fbdev_setup(struct drm_device *dev); 78 #else 79 static inline void armada_fbdev_setup(struct drm_device *dev) 80 { } 81 #endif 82 83 int armada_overlay_plane_create(struct drm_device *, unsigned long); 84 85 void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc); 86 int armada_drm_debugfs_init(struct drm_minor *); 87 88 #endif 89