22 #include <drm/drmP.h>
23 #include <drm/drm_atomic_helper.h>
24 #include <drm/drm_crtc.h>
25 #include <drm/drm_crtc_helper.h>
26 #include <drm/drm_fb_helper.h>
27 #include <drm/drm_fb_cma_helper.h>
28 #include <drm/drm_gem_cma_helper.h>
29 #include <drm/drm_gem_framebuffer_helper.h>
30 #include <drm/drm_modeset_helper.h>
31 #include <drm/drm_of.h>
36 static int hdlcd_load(struct drm_device *drm, unsigned long flags)  in hdlcd_load()  argument
38 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_load()
39 	struct platform_device *pdev = to_platform_device(drm->dev);  in hdlcd_load()
44 	hdlcd->clk = devm_clk_get(drm->dev, "pxlclk");  in hdlcd_load()
56 	hdlcd->mmio = devm_ioremap_resource(drm->dev, res);  in hdlcd_load()
74 	ret = of_reserved_mem_device_init(drm->dev);  in hdlcd_load()
78 	ret = dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32));  in hdlcd_load()
82 	ret = hdlcd_setup_crtc(drm);  in hdlcd_load()
88 	ret = drm_irq_install(drm, platform_get_irq(pdev, 0));  in hdlcd_load()
99 	of_reserved_mem_device_release(drm->dev);  in hdlcd_load()
111 static void hdlcd_setup_mode_config(struct drm_device *drm)  in hdlcd_setup_mode_config()  argument
113 	drm_mode_config_init(drm);  in hdlcd_setup_mode_config()
114 	drm->mode_config.min_width = 0;  in hdlcd_setup_mode_config()
115 	drm->mode_config.min_height = 0;  in hdlcd_setup_mode_config()
116 	drm->mode_config.max_width = HDLCD_MAX_XRES;  in hdlcd_setup_mode_config()
117 	drm->mode_config.max_height = HDLCD_MAX_YRES;  in hdlcd_setup_mode_config()
118 	drm->mode_config.funcs = &hdlcd_mode_config_funcs;  in hdlcd_setup_mode_config()
123 	struct drm_device *drm = arg;  in hdlcd_irq()  local
124 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_irq()
152 static void hdlcd_irq_preinstall(struct drm_device *drm)  in hdlcd_irq_preinstall()  argument
154 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_irq_preinstall()
160 static int hdlcd_irq_postinstall(struct drm_device *drm)  in hdlcd_irq_postinstall()  argument
163 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_irq_postinstall()
174 static void hdlcd_irq_uninstall(struct drm_device *drm)  in hdlcd_irq_uninstall()  argument
176 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_irq_uninstall()
195 	struct drm_device *drm = node->minor->dev;  in hdlcd_show_underrun_count()  local
196 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_show_underrun_count()
208 	struct drm_device *drm = node->minor->dev;  in hdlcd_show_pxlclock()  local
209 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_show_pxlclock()
259 	.desc = "ARM HDLCD Controller DRM",
267 	struct drm_device *drm;  in hdlcd_drm_bind()  local
275 	drm = drm_dev_alloc(&hdlcd_driver, dev);  in hdlcd_drm_bind()
276 	if (IS_ERR(drm))  in hdlcd_drm_bind()
277 		return PTR_ERR(drm);  in hdlcd_drm_bind()
279 	drm->dev_private = hdlcd;  in hdlcd_drm_bind()
280 	dev_set_drvdata(dev, drm);  in hdlcd_drm_bind()
282 	hdlcd_setup_mode_config(drm);  in hdlcd_drm_bind()
283 	ret = hdlcd_load(drm, 0);  in hdlcd_drm_bind()
290 	ret = component_bind_all(dev, drm);  in hdlcd_drm_bind()
302 	ret = drm_vblank_init(drm, drm->mode_config.num_crtc);  in hdlcd_drm_bind()
308 	drm_mode_config_reset(drm);  in hdlcd_drm_bind()
309 	drm_kms_helper_poll_init(drm);  in hdlcd_drm_bind()
311 	ret = drm_fb_cma_fbdev_init(drm, 32, 0);  in hdlcd_drm_bind()
315 	ret = drm_dev_register(drm, 0);  in hdlcd_drm_bind()
322 	drm_fb_cma_fbdev_fini(drm);  in hdlcd_drm_bind()
324 	drm_kms_helper_poll_fini(drm);  in hdlcd_drm_bind()
326 	pm_runtime_disable(drm->dev);  in hdlcd_drm_bind()
328 	drm_atomic_helper_shutdown(drm);  in hdlcd_drm_bind()
329 	component_unbind_all(dev, drm);  in hdlcd_drm_bind()
333 	drm_irq_uninstall(drm);  in hdlcd_drm_bind()
334 	of_reserved_mem_device_release(drm->dev);  in hdlcd_drm_bind()
336 	drm_mode_config_cleanup(drm);  in hdlcd_drm_bind()
338 	drm_dev_put(drm);  in hdlcd_drm_bind()
345 	struct drm_device *drm = dev_get_drvdata(dev);  in hdlcd_drm_unbind()  local
346 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_drm_unbind()
348 	drm_dev_unregister(drm);  in hdlcd_drm_unbind()
349 	drm_fb_cma_fbdev_fini(drm);  in hdlcd_drm_unbind()
350 	drm_kms_helper_poll_fini(drm);  in hdlcd_drm_unbind()
351 	component_unbind_all(dev, drm);  in hdlcd_drm_unbind()
356 	drm_irq_uninstall(drm);  in hdlcd_drm_unbind()
357 	drm_atomic_helper_shutdown(drm);  in hdlcd_drm_unbind()
362 	drm_mode_config_cleanup(drm);  in hdlcd_drm_unbind()
363 	drm->dev_private = NULL;  in hdlcd_drm_unbind()
365 	drm_dev_put(drm);  in hdlcd_drm_unbind()
409 	struct drm_device *drm = dev_get_drvdata(dev);  in hdlcd_pm_suspend()  local
411 	return drm_mode_config_helper_suspend(drm);  in hdlcd_pm_suspend()
416 	struct drm_device *drm = dev_get_drvdata(dev);  in hdlcd_pm_resume()  local
418 	drm_mode_config_helper_resume(drm);  in hdlcd_pm_resume()
438 MODULE_DESCRIPTION("ARM HDLCD DRM driver");