5  * This code is based on drivers/gpu/drm/mxsfb/mxsfb*
17 #include <drm/drm_atomic_helper.h>
18 #include <drm/drm_bridge.h>
19 #include <drm/drm_drv.h>
20 #include <drm/drm_encoder.h>
21 #include <drm/drm_fbdev_dma.h>
22 #include <drm/drm_gem_dma_helper.h>
23 #include <drm/drm_gem_framebuffer_helper.h>
24 #include <drm/drm_mode_config.h>
25 #include <drm/drm_module.h>
26 #include <drm/drm_of.h>
27 #include <drm/drm_probe_helper.h>
28 #include <drm/drm_vblank.h>
49 	struct device *dev = lcdif->drm->dev;  in lcdif_attach_bridge()
90 		ret = drm_encoder_init(lcdif->drm, encoder, &lcdif_encoder_funcs,  in lcdif_attach_bridge()
113 	struct drm_device *drm = data;  in lcdif_irq_handler()  local
114 	struct lcdif_drm_private *lcdif = drm->dev_private;  in lcdif_irq_handler()
132 static int lcdif_load(struct drm_device *drm)  in lcdif_load()  argument
134 	struct platform_device *pdev = to_platform_device(drm->dev);  in lcdif_load()
143 	lcdif->drm = drm;  in lcdif_load()
144 	drm->dev_private = lcdif;  in lcdif_load()
147 	lcdif->base = devm_ioremap_resource(drm->dev, res);  in lcdif_load()
151 	lcdif->clk = devm_clk_get(drm->dev, "pix");  in lcdif_load()
155 	lcdif->clk_axi = devm_clk_get(drm->dev, "axi");  in lcdif_load()
159 	lcdif->clk_disp_axi = devm_clk_get(drm->dev, "disp_axi");  in lcdif_load()
163 	platform_set_drvdata(pdev, drm);  in lcdif_load()
165 	ret = dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(36));  in lcdif_load()
170 	drm_mode_config_init(drm);  in lcdif_load()
174 		dev_err(drm->dev, "Failed to initialize KMS pipeline\n");  in lcdif_load()
178 	ret = drm_vblank_init(drm, drm->mode_config.num_crtc);  in lcdif_load()
180 		dev_err(drm->dev, "Failed to initialise vblank\n");  in lcdif_load()
189 		return dev_err_probe(drm->dev, ret, "Cannot connect bridge\n");  in lcdif_load()
191 	drm->mode_config.min_width	= LCDIF_MIN_XRES;  in lcdif_load()
192 	drm->mode_config.min_height	= LCDIF_MIN_YRES;  in lcdif_load()
193 	drm->mode_config.max_width	= LCDIF_MAX_XRES;  in lcdif_load()
194 	drm->mode_config.max_height	= LCDIF_MAX_YRES;  in lcdif_load()
195 	drm->mode_config.funcs		= &lcdif_mode_config_funcs;  in lcdif_load()
196 	drm->mode_config.helper_private	= &lcdif_mode_config_helpers;  in lcdif_load()
198 	drm_mode_config_reset(drm);  in lcdif_load()
205 	ret = devm_request_irq(drm->dev, lcdif->irq, lcdif_irq_handler, 0,  in lcdif_load()
206 			       drm->driver->name, drm);  in lcdif_load()
208 		dev_err(drm->dev, "Failed to install IRQ handler\n");  in lcdif_load()
212 	drm_kms_helper_poll_init(drm);  in lcdif_load()
214 	drm_helper_hpd_irq_event(drm);  in lcdif_load()
216 	pm_runtime_enable(drm->dev);  in lcdif_load()
221 static void lcdif_unload(struct drm_device *drm)  in lcdif_unload()  argument
223 	struct lcdif_drm_private *lcdif = drm->dev_private;  in lcdif_unload()
225 	pm_runtime_get_sync(drm->dev);  in lcdif_unload()
229 	drm_kms_helper_poll_fini(drm);  in lcdif_unload()
230 	drm_mode_config_cleanup(drm);  in lcdif_unload()
232 	pm_runtime_put_sync(drm->dev);  in lcdif_unload()
233 	pm_runtime_disable(drm->dev);  in lcdif_unload()
235 	drm->dev_private = NULL;  in lcdif_unload()
245 	.desc	= "i.MX LCDIF Controller DRM",
260 	struct drm_device *drm;  in lcdif_probe()  local
263 	drm = drm_dev_alloc(&lcdif_driver, &pdev->dev);  in lcdif_probe()
264 	if (IS_ERR(drm))  in lcdif_probe()
265 		return PTR_ERR(drm);  in lcdif_probe()
267 	ret = lcdif_load(drm);  in lcdif_probe()
271 	ret = drm_dev_register(drm, 0);  in lcdif_probe()
275 	drm_fbdev_dma_setup(drm, 32);  in lcdif_probe()
280 	lcdif_unload(drm);  in lcdif_probe()
282 	drm_dev_put(drm);  in lcdif_probe()
289 	struct drm_device *drm = platform_get_drvdata(pdev);  in lcdif_remove()  local
291 	drm_dev_unregister(drm);  in lcdif_remove()
292 	drm_atomic_helper_shutdown(drm);  in lcdif_remove()
293 	lcdif_unload(drm);  in lcdif_remove()
294 	drm_dev_put(drm);  in lcdif_remove()
299 	struct drm_device *drm = platform_get_drvdata(pdev);  in lcdif_shutdown()  local
301 	drm_atomic_helper_shutdown(drm);  in lcdif_shutdown()
306 	struct drm_device *drm = dev_get_drvdata(dev);  in lcdif_rpm_suspend()  local
307 	struct lcdif_drm_private *lcdif = drm->dev_private;  in lcdif_rpm_suspend()
321 	struct drm_device *drm = dev_get_drvdata(dev);  in lcdif_rpm_resume()  local
322 	struct lcdif_drm_private *lcdif = drm->dev_private;  in lcdif_rpm_resume()
336 	struct drm_device *drm = dev_get_drvdata(dev);  in lcdif_suspend()  local
339 	ret = drm_mode_config_helper_suspend(drm);  in lcdif_suspend()
351 	struct drm_device *drm = dev_get_drvdata(dev);  in lcdif_resume()  local
356 	return drm_mode_config_helper_resume(drm);  in lcdif_resume()
378 MODULE_DESCRIPTION("Freescale LCDIF DRM/KMS driver");