drm/mxsfb/mxsfb_drv.c

20 #include <drm/drm_atomic_helper.h>
21 #include <drm/drm_bridge.h>
22 #include <drm/drm_connector.h>
23 #include <drm/drm_drv.h>
24 #include <drm/drm_fbdev_dma.h>
25 #include <drm/drm_fourcc.h>
26 #include <drm/drm_gem_dma_helper.h>
27 #include <drm/drm_gem_framebuffer_helper.h>
28 #include <drm/drm_mode_config.h>
29 #include <drm/drm_module.h>
30 #include <drm/drm_of.h>
31 #include <drm/drm_probe_helper.h>
32 #include <drm/drm_vblank.h>
120 	struct drm_device *drm = mxsfb->drm;
126 	ret = drm_of_find_panel_or_bridge(drm->dev->of_node, 0, 0, &panel,
132 		bridge = devm_drm_panel_bridge_add_typed(drm->dev, panel,
143 		return dev_err_probe(drm->dev, ret, "Failed to attach bridge\n");
151 	drm_connector_list_iter_begin(drm, &iter);
160 	struct drm_device *drm = data;
161 	struct mxsfb_drm_private *mxsfb = drm->dev_private;
181 static void mxsfb_irq_disable(struct drm_device *drm)
183 	struct mxsfb_drm_private *mxsfb = drm->dev_private;
212 static int mxsfb_load(struct drm_device *drm,
215 	struct platform_device *pdev = to_platform_device(drm->dev);
224 	mxsfb->drm = drm;
225 	drm->dev_private = mxsfb;
229 	mxsfb->base = devm_ioremap_resource(drm->dev, res);
233 	mxsfb->clk = devm_clk_get(drm->dev, NULL);
237 	mxsfb->clk_axi = devm_clk_get_optional(drm->dev, "axi");
241 	mxsfb->clk_disp_axi = devm_clk_get(drm->dev, "disp_axi");
245 	ret = dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32));
249 	pm_runtime_enable(drm->dev);
252 	ret = drmm_mode_config_init(drm);
254 		dev_err(drm->dev, "Failed to initialize mode config\n");
260 		dev_err(drm->dev, "Failed to initialize KMS pipeline\n");
264 	ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
266 		dev_err(drm->dev, "Failed to initialise vblank\n");
275 		dev_err_probe(drm->dev, ret, "Cannot connect bridge\n");
279 	drm->mode_config.min_width	= MXSFB_MIN_XRES;
280 	drm->mode_config.min_height	= MXSFB_MIN_YRES;
281 	drm->mode_config.max_width	= MXSFB_MAX_XRES;
282 	drm->mode_config.max_height	= MXSFB_MAX_YRES;
283 	drm->mode_config.funcs		= &mxsfb_mode_config_funcs;
284 	drm->mode_config.helper_private	= &mxsfb_mode_config_helpers;
286 	drm_mode_config_reset(drm);
293 	pm_runtime_get_sync(drm->dev);
294 	ret = mxsfb_irq_install(drm, mxsfb->irq);
295 	pm_runtime_put_sync(drm->dev);
298 		dev_err(drm->dev, "Failed to install IRQ handler\n");
302 	drm_kms_helper_poll_init(drm);
304 	platform_set_drvdata(pdev, drm);
306 	drm_helper_hpd_irq_event(drm);
311 	pm_runtime_disable(drm->dev);
316 static void mxsfb_unload(struct drm_device *drm)
318 	drm_kms_helper_poll_fini(drm);
320 	pm_runtime_get_sync(drm->dev);
321 	mxsfb_irq_uninstall(drm);
322 	pm_runtime_put_sync(drm->dev);
324 	drm->dev_private = NULL;
326 	pm_runtime_disable(drm->dev);
335 	.name	= "mxsfb-drm",
352 	struct drm_device *drm;
355 	drm = drm_dev_alloc(&mxsfb_driver, &pdev->dev);
356 	if (IS_ERR(drm))
357 		return PTR_ERR(drm);
359 	ret = mxsfb_load(drm, device_get_match_data(&pdev->dev));
363 	ret = drm_dev_register(drm, 0);
367 	drm_fbdev_dma_setup(drm, 32);
372 	mxsfb_unload(drm);
374 	drm_dev_put(drm);
381 	struct drm_device *drm = platform_get_drvdata(pdev);
383 	drm_dev_unregister(drm);
384 	drm_atomic_helper_shutdown(drm);
385 	mxsfb_unload(drm);
386 	drm_dev_put(drm);
391 	struct drm_device *drm = platform_get_drvdata(pdev);
393 	drm_atomic_helper_shutdown(drm);
399 	struct drm_device *drm = dev_get_drvdata(dev);
401 	return drm_mode_config_helper_suspend(drm);
406 	struct drm_device *drm = dev_get_drvdata(dev);
408 	return drm_mode_config_helper_resume(drm);