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 struct drm_fb_helper; 20 21 static inline void 22 armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr) 23 { 24 uint32_t ov, v; 25 26 ov = v = readl_relaxed(ptr); 27 v = (v & ~mask) | val; 28 if (ov != v) 29 writel_relaxed(v, ptr); 30 } 31 32 static inline uint32_t armada_pitch(uint32_t width, uint32_t bpp) 33 { 34 uint32_t pitch = bpp != 4 ? width * ((bpp + 7) / 8) : width / 2; 35 36 /* 88AP510 spec recommends pitch be a multiple of 128 */ 37 return ALIGN(pitch, 128); 38 } 39 40 41 struct armada_private; 42 43 struct armada_variant { 44 bool has_spu_adv_reg; 45 int (*init)(struct armada_crtc *, struct device *); 46 int (*compute_clock)(struct armada_crtc *, 47 const struct drm_display_mode *, 48 uint32_t *); 49 void (*disable)(struct armada_crtc *); 50 void (*enable)(struct armada_crtc *, const struct drm_display_mode *); 51 }; 52 53 /* Variant ops */ 54 extern const struct armada_variant armada510_ops; 55 56 struct armada_private { 57 struct drm_device drm; 58 struct drm_fb_helper *fbdev; 59 struct armada_crtc *dcrtc[2]; 60 struct drm_mm linear; /* protected by linear_lock */ 61 struct mutex linear_lock; 62 struct drm_property *colorkey_prop; 63 struct drm_property *colorkey_min_prop; 64 struct drm_property *colorkey_max_prop; 65 struct drm_property *colorkey_val_prop; 66 struct drm_property *colorkey_alpha_prop; 67 struct drm_property *colorkey_mode_prop; 68 struct drm_property *brightness_prop; 69 struct drm_property *contrast_prop; 70 struct drm_property *saturation_prop; 71 #ifdef CONFIG_DEBUG_FS 72 struct dentry *de; 73 #endif 74 }; 75 76 int armada_fbdev_init(struct drm_device *); 77 void armada_fbdev_fini(struct drm_device *); 78 79 int armada_overlay_plane_create(struct drm_device *, unsigned long); 80 81 void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc); 82 int armada_drm_debugfs_init(struct drm_minor *); 83 84 #endif 85