19 #include <drm/drm_atomic_helper.h>
20 #include <drm/drm_bridge.h>
21 #include <drm/drm_connector.h>
22 #include <drm/drm_drv.h>
23 #include <drm/drm_fbdev_dma.h>
24 #include <drm/drm_fourcc.h>
25 #include <drm/drm_gem_dma_helper.h>
26 #include <drm/drm_gem_framebuffer_helper.h>
27 #include <drm/drm_mode_config.h>
28 #include <drm/drm_module.h>
29 #include <drm/drm_of.h>
30 #include <drm/drm_probe_helper.h>
31 #include <drm/drm_vblank.h>
119 	struct drm_device *drm = mxsfb->drm;  in mxsfb_attach_bridge()  local
125 	ret = drm_of_find_panel_or_bridge(drm->dev->of_node, 0, 0, &panel,  in mxsfb_attach_bridge()
131 		bridge = devm_drm_panel_bridge_add_typed(drm->dev, panel,  in mxsfb_attach_bridge()
142 		return dev_err_probe(drm->dev, ret, "Failed to attach bridge\n");  in mxsfb_attach_bridge()
150 	drm_connector_list_iter_begin(drm, &iter);  in mxsfb_attach_bridge()
159 	struct drm_device *drm = data;  in mxsfb_irq_handler()  local
160 	struct mxsfb_drm_private *mxsfb = drm->dev_private;  in mxsfb_irq_handler()
180 static void mxsfb_irq_disable(struct drm_device *drm)  in mxsfb_irq_disable()  argument
182 	struct mxsfb_drm_private *mxsfb = drm->dev_private;  in mxsfb_irq_disable()
211 static int mxsfb_load(struct drm_device *drm,  in mxsfb_load()  argument
214 	struct platform_device *pdev = to_platform_device(drm->dev);  in mxsfb_load()
223 	mxsfb->drm = drm;  in mxsfb_load()
224 	drm->dev_private = mxsfb;  in mxsfb_load()
228 	mxsfb->base = devm_ioremap_resource(drm->dev, res);  in mxsfb_load()
232 	mxsfb->clk = devm_clk_get(drm->dev, NULL);  in mxsfb_load()
236 	mxsfb->clk_axi = devm_clk_get_optional(drm->dev, "axi");  in mxsfb_load()
240 	mxsfb->clk_disp_axi = devm_clk_get(drm->dev, "disp_axi");  in mxsfb_load()
244 	ret = dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32));  in mxsfb_load()
248 	pm_runtime_enable(drm->dev);  in mxsfb_load()
251 	drm_mode_config_init(drm);  in mxsfb_load()
255 		dev_err(drm->dev, "Failed to initialize KMS pipeline\n");  in mxsfb_load()
259 	ret = drm_vblank_init(drm, drm->mode_config.num_crtc);  in mxsfb_load()
261 		dev_err(drm->dev, "Failed to initialise vblank\n");  in mxsfb_load()
270 		dev_err_probe(drm->dev, ret, "Cannot connect bridge\n");  in mxsfb_load()
274 	drm->mode_config.min_width	= MXSFB_MIN_XRES;  in mxsfb_load()
275 	drm->mode_config.min_height	= MXSFB_MIN_YRES;  in mxsfb_load()
276 	drm->mode_config.max_width	= MXSFB_MAX_XRES;  in mxsfb_load()
277 	drm->mode_config.max_height	= MXSFB_MAX_YRES;  in mxsfb_load()
278 	drm->mode_config.funcs		= &mxsfb_mode_config_funcs;  in mxsfb_load()
279 	drm->mode_config.helper_private	= &mxsfb_mode_config_helpers;  in mxsfb_load()
281 	drm_mode_config_reset(drm);  in mxsfb_load()
288 	pm_runtime_get_sync(drm->dev);  in mxsfb_load()
289 	ret = mxsfb_irq_install(drm, mxsfb->irq);  in mxsfb_load()
290 	pm_runtime_put_sync(drm->dev);  in mxsfb_load()
293 		dev_err(drm->dev, "Failed to install IRQ handler\n");  in mxsfb_load()
297 	drm_kms_helper_poll_init(drm);  in mxsfb_load()
299 	platform_set_drvdata(pdev, drm);  in mxsfb_load()
301 	drm_helper_hpd_irq_event(drm);  in mxsfb_load()
306 	pm_runtime_disable(drm->dev);  in mxsfb_load()
311 static void mxsfb_unload(struct drm_device *drm)  in mxsfb_unload()  argument
313 	drm_kms_helper_poll_fini(drm);  in mxsfb_unload()
314 	drm_mode_config_cleanup(drm);  in mxsfb_unload()
316 	pm_runtime_get_sync(drm->dev);  in mxsfb_unload()
317 	mxsfb_irq_uninstall(drm);  in mxsfb_unload()
318 	pm_runtime_put_sync(drm->dev);  in mxsfb_unload()
320 	drm->dev_private = NULL;  in mxsfb_unload()
322 	pm_runtime_disable(drm->dev);  in mxsfb_unload()
331 	.name	= "mxsfb-drm",
332 	.desc	= "MXSFB Controller DRM",
348 	struct drm_device *drm;  in mxsfb_probe()  local
356 	drm = drm_dev_alloc(&mxsfb_driver, &pdev->dev);  in mxsfb_probe()
357 	if (IS_ERR(drm))  in mxsfb_probe()
358 		return PTR_ERR(drm);  in mxsfb_probe()
360 	ret = mxsfb_load(drm, of_id->data);  in mxsfb_probe()
364 	ret = drm_dev_register(drm, 0);  in mxsfb_probe()
368 	drm_fbdev_dma_setup(drm, 32);  in mxsfb_probe()
373 	mxsfb_unload(drm);  in mxsfb_probe()
375 	drm_dev_put(drm);  in mxsfb_probe()
382 	struct drm_device *drm = platform_get_drvdata(pdev);  in mxsfb_remove()  local
384 	drm_dev_unregister(drm);  in mxsfb_remove()
385 	drm_atomic_helper_shutdown(drm);  in mxsfb_remove()
386 	mxsfb_unload(drm);  in mxsfb_remove()
387 	drm_dev_put(drm);  in mxsfb_remove()
392 	struct drm_device *drm = platform_get_drvdata(pdev);  in mxsfb_shutdown()  local
394 	drm_atomic_helper_shutdown(drm);  in mxsfb_shutdown()
400 	struct drm_device *drm = dev_get_drvdata(dev);  in mxsfb_suspend()  local
402 	return drm_mode_config_helper_suspend(drm);  in mxsfb_suspend()
407 	struct drm_device *drm = dev_get_drvdata(dev);  in mxsfb_resume()  local
409 	return drm_mode_config_helper_resume(drm);  in mxsfb_resume()
431 MODULE_DESCRIPTION("Freescale MXS DRM/KMS driver");