37 static bool fsl_dcu_drm_is_volatile_reg(struct device *dev, unsigned int reg)  in fsl_dcu_drm_is_volatile_reg()  argument
53 static void fsl_dcu_irq_reset(struct drm_device *dev)  in fsl_dcu_irq_reset()  argument
55 	struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;  in fsl_dcu_irq_reset()
63 	struct drm_device *dev = arg;  in fsl_dcu_drm_irq()  local
64 	struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;  in fsl_dcu_drm_irq()
70 		dev_err(dev->dev, "read DCU_INT_STATUS failed\n");  in fsl_dcu_drm_irq()
75 		drm_handle_vblank(dev, 0);  in fsl_dcu_drm_irq()
82 static int fsl_dcu_irq_install(struct drm_device *dev, unsigned int irq)  in fsl_dcu_irq_install()  argument
87 	fsl_dcu_irq_reset(dev);  in fsl_dcu_irq_install()
89 	return request_irq(irq, fsl_dcu_drm_irq, 0, dev->driver->name, dev);  in fsl_dcu_irq_install()
92 static void fsl_dcu_irq_uninstall(struct drm_device *dev)  in fsl_dcu_irq_uninstall()  argument
94 	struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;  in fsl_dcu_irq_uninstall()
96 	fsl_dcu_irq_reset(dev);  in fsl_dcu_irq_uninstall()
97 	free_irq(fsl_dev->irq, dev);  in fsl_dcu_irq_uninstall()
100 static int fsl_dcu_load(struct drm_device *dev, unsigned long flags)  in fsl_dcu_load()  argument
102 	struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;  in fsl_dcu_load()
107 		dev_err(dev->dev, "failed to initialize mode setting\n");  in fsl_dcu_load()
111 	ret = drm_vblank_init(dev, dev->mode_config.num_crtc);  in fsl_dcu_load()
113 		dev_err(dev->dev, "failed to initialize vblank\n");  in fsl_dcu_load()
117 	ret = fsl_dcu_irq_install(dev, fsl_dev->irq);  in fsl_dcu_load()
119 		dev_err(dev->dev, "failed to install IRQ handler\n");  in fsl_dcu_load()
125 		dev_warn(dev->dev,  in fsl_dcu_load()
132 	drm_kms_helper_poll_fini(dev);  in fsl_dcu_load()
134 	drm_mode_config_cleanup(dev);  in fsl_dcu_load()
136 	dev->dev_private = NULL;  in fsl_dcu_load()
141 static void fsl_dcu_unload(struct drm_device *dev)  in fsl_dcu_unload()  argument
143 	drm_atomic_helper_shutdown(dev);  in fsl_dcu_unload()
144 	drm_kms_helper_poll_fini(dev);  in fsl_dcu_unload()
146 	drm_mode_config_cleanup(dev);  in fsl_dcu_unload()
147 	fsl_dcu_irq_uninstall(dev);  in fsl_dcu_unload()
149 	dev->dev_private = NULL;  in fsl_dcu_unload()
168 static int fsl_dcu_drm_pm_suspend(struct device *dev)  in fsl_dcu_drm_pm_suspend()  argument
170 	struct fsl_dcu_drm_device *fsl_dev = dev_get_drvdata(dev);  in fsl_dcu_drm_pm_suspend()
189 static int fsl_dcu_drm_pm_resume(struct device *dev)  in fsl_dcu_drm_pm_resume()  argument
191 	struct fsl_dcu_drm_device *fsl_dev = dev_get_drvdata(dev);  in fsl_dcu_drm_pm_resume()
199 		dev_err(dev, "failed to enable dcu clk\n");  in fsl_dcu_drm_pm_resume()
248 	struct device *dev = &pdev->dev;  in fsl_dcu_drm_probe()  local
258 	fsl_dev = devm_kzalloc(dev, sizeof(*fsl_dev), GFP_KERNEL);  in fsl_dcu_drm_probe()
262 	id = of_match_node(fsl_dcu_of_match, pdev->dev.of_node);  in fsl_dcu_drm_probe()
268 	base = devm_ioremap_resource(dev, res);  in fsl_dcu_drm_probe()
276 		dev_err(dev, "failed to get irq\n");  in fsl_dcu_drm_probe()
280 	fsl_dev->regmap = devm_regmap_init_mmio(dev, base,  in fsl_dcu_drm_probe()
283 		dev_err(dev, "regmap init failed\n");  in fsl_dcu_drm_probe()
287 	fsl_dev->clk = devm_clk_get(dev, "dcu");  in fsl_dcu_drm_probe()
289 		dev_err(dev, "failed to get dcu clock\n");  in fsl_dcu_drm_probe()
294 		dev_err(dev, "failed to enable dcu clk\n");  in fsl_dcu_drm_probe()
298 	pix_clk_in = devm_clk_get(dev, "pix");  in fsl_dcu_drm_probe()
304 	if (of_property_read_bool(dev->of_node, "big-endian"))  in fsl_dcu_drm_probe()
309 	fsl_dev->pix_clk = clk_register_divider(dev, pix_clk_name,  in fsl_dcu_drm_probe()
313 		dev_err(dev, "failed to register pix clk\n");  in fsl_dcu_drm_probe()
318 	fsl_dev->tcon = fsl_tcon_init(dev);  in fsl_dcu_drm_probe()
320 	drm = drm_dev_alloc(&fsl_dcu_drm_driver, dev);  in fsl_dcu_drm_probe()
326 	fsl_dev->dev = dev;  in fsl_dcu_drm_probe()
328 	fsl_dev->np = dev->of_node;  in fsl_dcu_drm_probe()
330 	dev_set_drvdata(dev, fsl_dev);  in fsl_dcu_drm_probe()