3  * ARC PGU DRM driver.
9 #include <drm/drm_atomic_helper.h>
10 #include <drm/drm_debugfs.h>
11 #include <drm/drm_device.h>
12 #include <drm/drm_drv.h>
13 #include <drm/drm_fb_cma_helper.h>
14 #include <drm/drm_fb_helper.h>
15 #include <drm/drm_gem_cma_helper.h>
16 #include <drm/drm_gem_framebuffer_helper.h>
17 #include <drm/drm_of.h>
18 #include <drm/drm_probe_helper.h>
33 static void arcpgu_setup_mode_config(struct drm_device *drm)  in arcpgu_setup_mode_config()  argument
35 	drm_mode_config_init(drm);  in arcpgu_setup_mode_config()
36 	drm->mode_config.min_width = 0;  in arcpgu_setup_mode_config()
37 	drm->mode_config.min_height = 0;  in arcpgu_setup_mode_config()
38 	drm->mode_config.max_width = 1920;  in arcpgu_setup_mode_config()
39 	drm->mode_config.max_height = 1080;  in arcpgu_setup_mode_config()
40 	drm->mode_config.funcs = &arcpgu_drm_modecfg_funcs;  in arcpgu_setup_mode_config()
45 static int arcpgu_load(struct drm_device *drm)  in arcpgu_load()  argument
47 	struct platform_device *pdev = to_platform_device(drm->dev);  in arcpgu_load()
57 	drm->dev_private = arcpgu;  in arcpgu_load()
59 	arcpgu->clk = devm_clk_get(drm->dev, "pxlclk");  in arcpgu_load()
63 	arcpgu_setup_mode_config(drm);  in arcpgu_load()
70 	dev_info(drm->dev, "arc_pgu ID: 0x%x\n",  in arcpgu_load()
74 	ret = of_reserved_mem_device_init(drm->dev);  in arcpgu_load()
78 	if (dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32)))  in arcpgu_load()
81 	if (arc_pgu_setup_crtc(drm) < 0)  in arcpgu_load()
95 		ret = arcpgu_drm_hdmi_init(drm, encoder_node);  in arcpgu_load()
100 		dev_info(drm->dev, "no encoder found. Assumed virtual LCD on simulation platform\n");  in arcpgu_load()
101 		ret = arcpgu_drm_sim_init(drm, NULL);  in arcpgu_load()
106 	drm_mode_config_reset(drm);  in arcpgu_load()
107 	drm_kms_helper_poll_init(drm);  in arcpgu_load()
109 	platform_set_drvdata(pdev, drm);  in arcpgu_load()
113 static int arcpgu_unload(struct drm_device *drm)  in arcpgu_unload()  argument
115 	drm_kms_helper_poll_fini(drm);  in arcpgu_unload()
116 	drm_atomic_helper_shutdown(drm);  in arcpgu_unload()
117 	drm_mode_config_cleanup(drm);  in arcpgu_unload()
126 	struct drm_device *drm = node->minor->dev;  in arcpgu_show_pxlclock()  local
127 	struct arcpgu_drm_private *arcpgu = drm->dev_private;  in arcpgu_show_pxlclock()
165 	struct drm_device *drm;  in arcpgu_probe()  local
168 	drm = drm_dev_alloc(&arcpgu_drm_driver, &pdev->dev);  in arcpgu_probe()
169 	if (IS_ERR(drm))  in arcpgu_probe()
170 		return PTR_ERR(drm);  in arcpgu_probe()
172 	ret = arcpgu_load(drm);  in arcpgu_probe()
176 	ret = drm_dev_register(drm, 0);  in arcpgu_probe()
180 	drm_fbdev_generic_setup(drm, 16);  in arcpgu_probe()
185 	arcpgu_unload(drm);  in arcpgu_probe()
188 	drm_dev_put(drm);  in arcpgu_probe()
195 	struct drm_device *drm = platform_get_drvdata(pdev);  in arcpgu_remove()  local
197 	drm_dev_unregister(drm);  in arcpgu_remove()
198 	arcpgu_unload(drm);  in arcpgu_remove()
199 	drm_dev_put(drm);  in arcpgu_remove()
223 MODULE_DESCRIPTION("ARC PGU DRM driver");