30 #include <drm/drmP.h>
31 #include <drm/drm_atomic.h>
32 #include <drm/drm_atomic_helper.h>
33 #include <drm/drm_crtc.h>
34 #include <drm/drm_crtc_helper.h>
35 #include <drm/drm_fb_helper.h>
36 #include <drm/drm_fb_cma_helper.h>
37 #include <drm/drm_gem_cma_helper.h>
38 #include <drm/drm_gem_framebuffer_helper.h>
39 #include <drm/drm_of.h>
40 #include <drm/drm_panel.h>
41 #include <drm/drm_simple_kms_helper.h>
162 static int mxsfb_load(struct drm_device *drm, unsigned long flags)  in mxsfb_load()  argument
164 	struct platform_device *pdev = to_platform_device(drm->dev);  in mxsfb_load()
173 	drm->dev_private = mxsfb;  in mxsfb_load()
177 	mxsfb->base = devm_ioremap_resource(drm->dev, res);  in mxsfb_load()
181 	mxsfb->clk = devm_clk_get(drm->dev, NULL);  in mxsfb_load()
185 	mxsfb->clk_axi = devm_clk_get(drm->dev, "axi");  in mxsfb_load()
189 	mxsfb->clk_disp_axi = devm_clk_get(drm->dev, "disp_axi");  in mxsfb_load()
193 	ret = dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32));  in mxsfb_load()
197 	pm_runtime_enable(drm->dev);  in mxsfb_load()
199 	ret = drm_vblank_init(drm, drm->mode_config.num_crtc);  in mxsfb_load()
201 		dev_err(drm->dev, "Failed to initialise vblank\n");  in mxsfb_load()
206 	drm_mode_config_init(drm);  in mxsfb_load()
208 	ret = mxsfb_create_output(drm);  in mxsfb_load()
210 		dev_err(drm->dev, "Failed to create outputs\n");  in mxsfb_load()
214 	ret = drm_simple_display_pipe_init(drm, &mxsfb->pipe, &mxsfb_funcs,  in mxsfb_load()
218 		dev_err(drm->dev, "Cannot setup simple display pipe\n");  in mxsfb_load()
224 		dev_err(drm->dev, "Cannot connect panel\n");  in mxsfb_load()
228 	drm->mode_config.min_width	= MXSFB_MIN_XRES;  in mxsfb_load()
229 	drm->mode_config.min_height	= MXSFB_MIN_YRES;  in mxsfb_load()
230 	drm->mode_config.max_width	= MXSFB_MAX_XRES;  in mxsfb_load()
231 	drm->mode_config.max_height	= MXSFB_MAX_YRES;  in mxsfb_load()
232 	drm->mode_config.funcs		= &mxsfb_mode_config_funcs;  in mxsfb_load()
234 	drm_mode_config_reset(drm);  in mxsfb_load()
236 	pm_runtime_get_sync(drm->dev);  in mxsfb_load()
237 	ret = drm_irq_install(drm, platform_get_irq(pdev, 0));  in mxsfb_load()
238 	pm_runtime_put_sync(drm->dev);  in mxsfb_load()
241 		dev_err(drm->dev, "Failed to install IRQ handler\n");  in mxsfb_load()
245 	drm_kms_helper_poll_init(drm);  in mxsfb_load()
247 	mxsfb->fbdev = drm_fbdev_cma_init(drm, 32,  in mxsfb_load()
248 					  drm->mode_config.num_connector);  in mxsfb_load()
252 		dev_err(drm->dev, "Failed to init FB CMA area\n");  in mxsfb_load()
256 	platform_set_drvdata(pdev, drm);  in mxsfb_load()
258 	drm_helper_hpd_irq_event(drm);  in mxsfb_load()
263 	drm_irq_uninstall(drm);  in mxsfb_load()
267 	pm_runtime_disable(drm->dev);  in mxsfb_load()
272 static void mxsfb_unload(struct drm_device *drm)  in mxsfb_unload()  argument
274 	struct mxsfb_drm_private *mxsfb = drm->dev_private;  in mxsfb_unload()
279 	drm_kms_helper_poll_fini(drm);  in mxsfb_unload()
280 	drm_mode_config_cleanup(drm);  in mxsfb_unload()
282 	pm_runtime_get_sync(drm->dev);  in mxsfb_unload()
283 	drm_irq_uninstall(drm);  in mxsfb_unload()
284 	pm_runtime_put_sync(drm->dev);  in mxsfb_unload()
286 	drm->dev_private = NULL;  in mxsfb_unload()
288 	pm_runtime_disable(drm->dev);  in mxsfb_unload()
291 static void mxsfb_lastclose(struct drm_device *drm)  in mxsfb_lastclose()  argument
293 	struct mxsfb_drm_private *mxsfb = drm->dev_private;  in mxsfb_lastclose()
298 static void mxsfb_irq_preinstall(struct drm_device *drm)  in mxsfb_irq_preinstall()  argument
300 	struct mxsfb_drm_private *mxsfb = drm->dev_private;  in mxsfb_irq_preinstall()
307 	struct drm_device *drm = data;  in mxsfb_irq_handler()  local
308 	struct mxsfb_drm_private *mxsfb = drm->dev_private;  in mxsfb_irq_handler()
348 	.name	= "mxsfb-drm",
349 	.desc	= "MXSFB Controller DRM",
373 	struct drm_device *drm;  in mxsfb_probe()  local
384 	drm = drm_dev_alloc(&mxsfb_driver, &pdev->dev);  in mxsfb_probe()
385 	if (IS_ERR(drm))  in mxsfb_probe()
386 		return PTR_ERR(drm);  in mxsfb_probe()
388 	ret = mxsfb_load(drm, 0);  in mxsfb_probe()
392 	ret = drm_dev_register(drm, 0);  in mxsfb_probe()
399 	mxsfb_unload(drm);  in mxsfb_probe()
401 	drm_dev_unref(drm);  in mxsfb_probe()
408 	struct drm_device *drm = platform_get_drvdata(pdev);  in mxsfb_remove()  local
410 	drm_dev_unregister(drm);  in mxsfb_remove()
411 	mxsfb_unload(drm);  in mxsfb_remove()
412 	drm_dev_unref(drm);  in mxsfb_remove()
430 MODULE_DESCRIPTION("Freescale MXS DRM/KMS driver");