2  * ARC PGU DRM driver.
18 #include <drm/drm_crtc_helper.h>
19 #include <drm/drm_fb_cma_helper.h>
20 #include <drm/drm_gem_cma_helper.h>
21 #include <drm/drm_gem_framebuffer_helper.h>
22 #include <drm/drm_atomic_helper.h>
42 static void arcpgu_setup_mode_config(struct drm_device *drm)  in arcpgu_setup_mode_config()  argument
44 	drm_mode_config_init(drm);  in arcpgu_setup_mode_config()
45 	drm->mode_config.min_width = 0;  in arcpgu_setup_mode_config()
46 	drm->mode_config.min_height = 0;  in arcpgu_setup_mode_config()
47 	drm->mode_config.max_width = 1920;  in arcpgu_setup_mode_config()
48 	drm->mode_config.max_height = 1080;  in arcpgu_setup_mode_config()
49 	drm->mode_config.funcs = &arcpgu_drm_modecfg_funcs;  in arcpgu_setup_mode_config()
54 static void arcpgu_lastclose(struct drm_device *drm)  in arcpgu_lastclose()  argument
56 	struct arcpgu_drm_private *arcpgu = drm->dev_private;  in arcpgu_lastclose()
61 static int arcpgu_load(struct drm_device *drm)  in arcpgu_load()  argument
63 	struct platform_device *pdev = to_platform_device(drm->dev);  in arcpgu_load()
73 	drm->dev_private = arcpgu;  in arcpgu_load()
75 	arcpgu->clk = devm_clk_get(drm->dev, "pxlclk");  in arcpgu_load()
79 	arcpgu_setup_mode_config(drm);  in arcpgu_load()
86 	dev_info(drm->dev, "arc_pgu ID: 0x%x\n",  in arcpgu_load()
90 	ret = of_reserved_mem_device_init(drm->dev);  in arcpgu_load()
94 	if (dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32)))  in arcpgu_load()
97 	if (arc_pgu_setup_crtc(drm) < 0)  in arcpgu_load()
101 	encoder_node = of_parse_phandle(drm->dev->of_node, "encoder-slave", 0);  in arcpgu_load()
103 		ret = arcpgu_drm_hdmi_init(drm, encoder_node);  in arcpgu_load()
108 		ret = arcpgu_drm_sim_init(drm, NULL);  in arcpgu_load()
113 	drm_mode_config_reset(drm);  in arcpgu_load()
114 	drm_kms_helper_poll_init(drm);  in arcpgu_load()
116 	arcpgu->fbdev = drm_fbdev_cma_init(drm, 16,  in arcpgu_load()
117 					   drm->mode_config.num_connector);  in arcpgu_load()
124 	platform_set_drvdata(pdev, drm);  in arcpgu_load()
128 static int arcpgu_unload(struct drm_device *drm)  in arcpgu_unload()  argument
130 	struct arcpgu_drm_private *arcpgu = drm->dev_private;  in arcpgu_unload()
136 	drm_kms_helper_poll_fini(drm);  in arcpgu_unload()
137 	drm_mode_config_cleanup(drm);  in arcpgu_unload()
146 	struct drm_device *drm = node->minor->dev;  in arcpgu_show_pxlclock()  local
147 	struct arcpgu_drm_private *arcpgu = drm->dev_private;  in arcpgu_show_pxlclock()
198 	struct drm_device *drm;  in arcpgu_probe()  local
201 	drm = drm_dev_alloc(&arcpgu_drm_driver, &pdev->dev);  in arcpgu_probe()
202 	if (IS_ERR(drm))  in arcpgu_probe()
203 		return PTR_ERR(drm);  in arcpgu_probe()
205 	ret = arcpgu_load(drm);  in arcpgu_probe()
209 	ret = drm_dev_register(drm, 0);  in arcpgu_probe()
216 	arcpgu_unload(drm);  in arcpgu_probe()
219 	drm_dev_unref(drm);  in arcpgu_probe()
226 	struct drm_device *drm = platform_get_drvdata(pdev);  in arcpgu_remove()  local
228 	drm_dev_unregister(drm);  in arcpgu_remove()
229 	arcpgu_unload(drm);  in arcpgu_remove()
230 	drm_dev_unref(drm);  in arcpgu_remove()
254 MODULE_DESCRIPTION("ARC PGU DRM driver");