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 struct drm_fb_helper_surface_size; 21 22 static inline void 23 armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr) 24 { 25 uint32_t ov, v; 26 27 ov = v = readl_relaxed(ptr); 28 v = (v & ~mask) | val; 29 if (ov != v) 30 writel_relaxed(v, ptr); 31 } 32 33 static inline uint32_t armada_pitch(uint32_t width, uint32_t bpp) 34 { 35 uint32_t pitch = bpp != 4 ? width * ((bpp + 7) / 8) : width / 2; 36 37 /* 88AP510 spec recommends pitch be a multiple of 128 */ 38 return ALIGN(pitch, 128); 39 } 40 41 42 struct armada_private; 43 44 struct armada_variant { 45 bool has_spu_adv_reg; 46 int (*init)(struct armada_crtc *, struct device *); 47 int (*compute_clock)(struct armada_crtc *, 48 const struct drm_display_mode *, 49 uint32_t *); 50 void (*disable)(struct armada_crtc *); 51 void (*enable)(struct armada_crtc *, const struct drm_display_mode *); 52 }; 53 54 /* Variant ops */ 55 extern const struct armada_variant armada510_ops; 56 57 struct armada_private { 58 struct drm_device drm; 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 #define drm_to_armada_dev(dev) container_of(dev, struct armada_private, drm) 77 78 #if defined(CONFIG_DRM_FBDEV_EMULATION) 79 int armada_fbdev_driver_fbdev_probe(struct drm_fb_helper *fbh, 80 struct drm_fb_helper_surface_size *sizes); 81 #define ARMADA_FBDEV_DRIVER_OPS \ 82 .fbdev_probe = armada_fbdev_driver_fbdev_probe 83 #else 84 #define ARMADA_FBDEV_DRIVER_OPS \ 85 .fbdev_probe = NULL 86 #endif 87 88 int armada_overlay_plane_create(struct drm_device *, unsigned long); 89 90 void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc); 91 int armada_drm_debugfs_init(struct drm_minor *); 92 93 #endif 94