1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2012 Avionic Design GmbH
4 * Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved.
10 #include <uapi/drm/tegra_drm.h>
11 #include <linux/host1x.h>
12 #include <linux/iova.h>
13 #include <linux/of_gpio.h>
16 #include <drm/drm_atomic.h>
17 #include <drm/drm_edid.h>
18 #include <drm/drm_encoder.h>
19 #include <drm/drm_fb_helper.h>
20 #include <drm/drm_fixed.h>
21 #include <drm/drm_probe_helper.h>
29 #ifdef CONFIG_DRM_FBDEV_EMULATION
31 struct drm_fb_helper base;
32 struct drm_framebuffer *fb;
37 struct drm_device *drm;
39 struct iommu_domain *domain;
40 struct iommu_group *group;
45 struct iova_domain domain;
50 struct mutex clients_lock;
51 struct list_head clients;
53 #ifdef CONFIG_DRM_FBDEV_EMULATION
54 struct tegra_fbdev *fbdev;
57 unsigned int pitch_align;
59 struct tegra_display_hub *hub;
62 struct tegra_drm_client;
64 struct tegra_drm_context {
65 struct tegra_drm_client *client;
66 struct host1x_channel *channel;
70 struct tegra_drm_client_ops {
71 int (*open_channel)(struct tegra_drm_client *client,
72 struct tegra_drm_context *context);
73 void (*close_channel)(struct tegra_drm_context *context);
74 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset);
75 int (*is_valid_class)(u32 class);
76 int (*submit)(struct tegra_drm_context *context,
77 struct drm_tegra_submit *args, struct drm_device *drm,
78 struct drm_file *file);
81 int tegra_drm_submit(struct tegra_drm_context *context,
82 struct drm_tegra_submit *args, struct drm_device *drm,
83 struct drm_file *file);
85 struct tegra_drm_client {
86 struct host1x_client base;
87 struct list_head list;
88 struct tegra_drm *drm;
91 const struct tegra_drm_client_ops *ops;
94 static inline struct tegra_drm_client *
95 host1x_to_drm_client(struct host1x_client *client)
97 return container_of(client, struct tegra_drm_client, base);
100 int tegra_drm_register_client(struct tegra_drm *tegra,
101 struct tegra_drm_client *client);
102 int tegra_drm_unregister_client(struct tegra_drm *tegra,
103 struct tegra_drm_client *client);
104 struct iommu_group *host1x_client_iommu_attach(struct host1x_client *client,
106 void host1x_client_iommu_detach(struct host1x_client *client,
107 struct iommu_group *group);
109 int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm);
110 int tegra_drm_exit(struct tegra_drm *tegra);
112 void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova);
113 void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt,
118 struct tegra_output {
119 struct device_node *of_node;
122 struct drm_panel *panel;
123 struct i2c_adapter *ddc;
124 const struct edid *edid;
125 struct cec_notifier *cec;
126 unsigned int hpd_irq;
127 struct gpio_desc *hpd_gpio;
129 struct drm_encoder encoder;
130 struct drm_connector connector;
133 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
135 return container_of(e, struct tegra_output, encoder);
138 static inline struct tegra_output *connector_to_output(struct drm_connector *c)
140 return container_of(c, struct tegra_output, connector);
144 int tegra_output_probe(struct tegra_output *output);
145 void tegra_output_remove(struct tegra_output *output);
146 int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
147 void tegra_output_exit(struct tegra_output *output);
148 void tegra_output_find_possible_crtcs(struct tegra_output *output,
149 struct drm_device *drm);
151 int tegra_output_connector_get_modes(struct drm_connector *connector);
152 enum drm_connector_status
153 tegra_output_connector_detect(struct drm_connector *connector, bool force);
154 void tegra_output_connector_destroy(struct drm_connector *connector);
156 void tegra_output_encoder_destroy(struct drm_encoder *encoder);
161 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np);
162 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux);
163 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output);
164 int drm_dp_aux_detach(struct drm_dp_aux *aux);
165 int drm_dp_aux_enable(struct drm_dp_aux *aux);
166 int drm_dp_aux_disable(struct drm_dp_aux *aux);
167 int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding);
168 int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link,
172 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
174 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
175 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
176 struct tegra_bo_tiling *tiling);
177 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
178 struct drm_file *file,
179 const struct drm_mode_fb_cmd2 *cmd);
180 int tegra_drm_fb_prepare(struct drm_device *drm);
181 void tegra_drm_fb_free(struct drm_device *drm);
182 int tegra_drm_fb_init(struct drm_device *drm);
183 void tegra_drm_fb_exit(struct drm_device *drm);
185 extern struct platform_driver tegra_display_hub_driver;
186 extern struct platform_driver tegra_dc_driver;
187 extern struct platform_driver tegra_hdmi_driver;
188 extern struct platform_driver tegra_dsi_driver;
189 extern struct platform_driver tegra_dpaux_driver;
190 extern struct platform_driver tegra_sor_driver;
191 extern struct platform_driver tegra_gr2d_driver;
192 extern struct platform_driver tegra_gr3d_driver;
193 extern struct platform_driver tegra_vic_driver;
195 #endif /* HOST1X_DRM_H */