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_fb_helper.h>
24 #include <drm/drm_fourcc.h>
25 #include <drm/drm_gem_cma_helper.h>
26 #include <drm/drm_gem_framebuffer_helper.h>
27 #include <drm/drm_irq.h>
28 #include <drm/drm_mode_config.h>
29 #include <drm/drm_of.h>
30 #include <drm/drm_probe_helper.h>
31 #include <drm/drm_vblank.h>
118 	struct drm_device *drm = mxsfb->drm;  in mxsfb_attach_bridge()  local
124 	ret = drm_of_find_panel_or_bridge(drm->dev->of_node, 0, 0, &panel,  in mxsfb_attach_bridge()
130 		bridge = devm_drm_panel_bridge_add_typed(drm->dev, panel,  in mxsfb_attach_bridge()
141 		return dev_err_probe(drm->dev, ret, "Failed to attach bridge\n");  in mxsfb_attach_bridge()
149 	drm_connector_list_iter_begin(drm, &iter);  in mxsfb_attach_bridge()
156 static int mxsfb_load(struct drm_device *drm,  in mxsfb_load()  argument
159 	struct platform_device *pdev = to_platform_device(drm->dev);  in mxsfb_load()
168 	mxsfb->drm = drm;  in mxsfb_load()
169 	drm->dev_private = mxsfb;  in mxsfb_load()
173 	mxsfb->base = devm_ioremap_resource(drm->dev, res);  in mxsfb_load()
177 	mxsfb->clk = devm_clk_get(drm->dev, NULL);  in mxsfb_load()
181 	mxsfb->clk_axi = devm_clk_get(drm->dev, "axi");  in mxsfb_load()
185 	mxsfb->clk_disp_axi = devm_clk_get(drm->dev, "disp_axi");  in mxsfb_load()
189 	ret = dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32));  in mxsfb_load()
193 	pm_runtime_enable(drm->dev);  in mxsfb_load()
196 	drm_mode_config_init(drm);  in mxsfb_load()
200 		dev_err(drm->dev, "Failed to initialize KMS pipeline\n");  in mxsfb_load()
204 	ret = drm_vblank_init(drm, drm->mode_config.num_crtc);  in mxsfb_load()
206 		dev_err(drm->dev, "Failed to initialise vblank\n");  in mxsfb_load()
216 			dev_err(drm->dev, "Cannot connect bridge: %d\n", ret);  in mxsfb_load()
220 	drm->mode_config.min_width	= MXSFB_MIN_XRES;  in mxsfb_load()
221 	drm->mode_config.min_height	= MXSFB_MIN_YRES;  in mxsfb_load()
222 	drm->mode_config.max_width	= MXSFB_MAX_XRES;  in mxsfb_load()
223 	drm->mode_config.max_height	= MXSFB_MAX_YRES;  in mxsfb_load()
224 	drm->mode_config.funcs		= &mxsfb_mode_config_funcs;  in mxsfb_load()
225 	drm->mode_config.helper_private	= &mxsfb_mode_config_helpers;  in mxsfb_load()
227 	drm_mode_config_reset(drm);  in mxsfb_load()
229 	pm_runtime_get_sync(drm->dev);  in mxsfb_load()
230 	ret = drm_irq_install(drm, platform_get_irq(pdev, 0));  in mxsfb_load()
231 	pm_runtime_put_sync(drm->dev);  in mxsfb_load()
234 		dev_err(drm->dev, "Failed to install IRQ handler\n");  in mxsfb_load()
238 	drm_kms_helper_poll_init(drm);  in mxsfb_load()
240 	platform_set_drvdata(pdev, drm);  in mxsfb_load()
242 	drm_helper_hpd_irq_event(drm);  in mxsfb_load()
247 	pm_runtime_disable(drm->dev);  in mxsfb_load()
252 static void mxsfb_unload(struct drm_device *drm)  in mxsfb_unload()  argument
254 	drm_kms_helper_poll_fini(drm);  in mxsfb_unload()
255 	drm_mode_config_cleanup(drm);  in mxsfb_unload()
257 	pm_runtime_get_sync(drm->dev);  in mxsfb_unload()
258 	drm_irq_uninstall(drm);  in mxsfb_unload()
259 	pm_runtime_put_sync(drm->dev);  in mxsfb_unload()
261 	drm->dev_private = NULL;  in mxsfb_unload()
263 	pm_runtime_disable(drm->dev);  in mxsfb_unload()
266 static void mxsfb_irq_disable(struct drm_device *drm)  in mxsfb_irq_disable()  argument
268 	struct mxsfb_drm_private *mxsfb = drm->dev_private;  in mxsfb_irq_disable()
281 	struct drm_device *drm = data;  in mxsfb_irq_handler()  local
282 	struct mxsfb_drm_private *mxsfb = drm->dev_private;  in mxsfb_irq_handler()
304 	.name	= "mxsfb-drm",
305 	.desc	= "MXSFB Controller DRM",
321 	struct drm_device *drm;  in mxsfb_probe()  local
329 	drm = drm_dev_alloc(&mxsfb_driver, &pdev->dev);  in mxsfb_probe()
330 	if (IS_ERR(drm))  in mxsfb_probe()
331 		return PTR_ERR(drm);  in mxsfb_probe()
333 	ret = mxsfb_load(drm, of_id->data);  in mxsfb_probe()
337 	ret = drm_dev_register(drm, 0);  in mxsfb_probe()
341 	drm_fbdev_generic_setup(drm, 32);  in mxsfb_probe()
346 	mxsfb_unload(drm);  in mxsfb_probe()
348 	drm_dev_put(drm);  in mxsfb_probe()
355 	struct drm_device *drm = platform_get_drvdata(pdev);  in mxsfb_remove()  local
357 	drm_dev_unregister(drm);  in mxsfb_remove()
358 	mxsfb_unload(drm);  in mxsfb_remove()
359 	drm_dev_put(drm);  in mxsfb_remove()
367 	struct drm_device *drm = dev_get_drvdata(dev);  in mxsfb_suspend()  local
369 	return drm_mode_config_helper_suspend(drm);  in mxsfb_suspend()
374 	struct drm_device *drm = dev_get_drvdata(dev);  in mxsfb_resume()  local
376 	return drm_mode_config_helper_resume(drm);  in mxsfb_resume()
397 MODULE_DESCRIPTION("Freescale MXS DRM/KMS driver");