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_edid.h>
14 #include <drm/drm_fb_dma_helper.h>
15 #include <drm/drm_fbdev_dma.h>
16 #include <drm/drm_fourcc.h>
17 #include <drm/drm_framebuffer.h>
18 #include <drm/drm_gem_dma_helper.h>
19 #include <drm/drm_gem_framebuffer_helper.h>
20 #include <drm/drm_module.h>
21 #include <drm/drm_of.h>
22 #include <drm/drm_probe_helper.h>
23 #include <drm/drm_simple_kms_helper.h>
50 	struct drm_device	drm;  member
57 #define dev_to_arcpgu(x) container_of(x, struct arcpgu_drm_private, drm)
101 static int arcpgu_drm_sim_init(struct drm_device *drm, struct drm_connector *connector)  in arcpgu_drm_sim_init()  argument
104 	return drm_connector_init(drm, connector, &arcpgu_drm_connector_funcs,  in arcpgu_drm_sim_init()
250 	struct platform_device *pdev = to_platform_device(arcpgu->drm.dev);  in arcpgu_load()
253 	struct drm_device *drm = &arcpgu->drm;  in arcpgu_load()  local
257 	arcpgu->clk = devm_clk_get(drm->dev, "pxlclk");  in arcpgu_load()
261 	ret = drmm_mode_config_init(drm);  in arcpgu_load()
265 	drm->mode_config.min_width = 0;  in arcpgu_load()
266 	drm->mode_config.min_height = 0;  in arcpgu_load()
267 	drm->mode_config.max_width = 1920;  in arcpgu_load()
268 	drm->mode_config.max_height = 1080;  in arcpgu_load()
269 	drm->mode_config.funcs = &arcpgu_drm_modecfg_funcs;  in arcpgu_load()
276 	dev_info(drm->dev, "arc_pgu ID: 0x%x\n",  in arcpgu_load()
280 	ret = of_reserved_mem_device_init(drm->dev);  in arcpgu_load()
284 	if (dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32)))  in arcpgu_load()
297 		dev_info(drm->dev, "no encoder found. Assumed virtual LCD on simulation platform\n");  in arcpgu_load()
298 		ret = arcpgu_drm_sim_init(drm, connector);  in arcpgu_load()
303 	ret = drm_simple_display_pipe_init(drm, &arcpgu->pipe, &arc_pgu_pipe_funcs,  in arcpgu_load()
313 		/* Locate drm bridge from the hdmi encoder DT node */  in arcpgu_load()
323 	drm_mode_config_reset(drm);  in arcpgu_load()
324 	drm_kms_helper_poll_init(drm);  in arcpgu_load()
326 	platform_set_drvdata(pdev, drm);  in arcpgu_load()
330 static int arcpgu_unload(struct drm_device *drm)  in arcpgu_unload()  argument
332 	drm_kms_helper_poll_fini(drm);  in arcpgu_unload()
333 	drm_atomic_helper_shutdown(drm);  in arcpgu_unload()
342 	struct drm_device *drm = node->minor->dev;  in arcpgu_show_pxlclock()  local
343 	struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm);  in arcpgu_show_pxlclock()
385 				    struct arcpgu_drm_private, drm);  in arcpgu_probe()
393 	ret = drm_dev_register(&arcpgu->drm, 0);  in arcpgu_probe()
397 	drm_fbdev_dma_setup(&arcpgu->drm, 16);  in arcpgu_probe()
402 	arcpgu_unload(&arcpgu->drm);  in arcpgu_probe()
409 	struct drm_device *drm = platform_get_drvdata(pdev);  in arcpgu_remove()  local
411 	drm_dev_unregister(drm);  in arcpgu_remove()
412 	arcpgu_unload(drm);  in arcpgu_remove()
434 MODULE_DESCRIPTION("ARC PGU DRM driver");