24 #include <drm/drm_atomic_helper.h>
25 #include <drm/drm_crtc.h>
26 #include <drm/drm_debugfs.h>
27 #include <drm/drm_drv.h>
28 #include <drm/drm_fb_cma_helper.h>
29 #include <drm/drm_fb_helper.h>
30 #include <drm/drm_gem_cma_helper.h>
31 #include <drm/drm_gem_framebuffer_helper.h>
32 #include <drm/drm_irq.h>
33 #include <drm/drm_modeset_helper.h>
34 #include <drm/drm_of.h>
35 #include <drm/drm_probe_helper.h>
36 #include <drm/drm_vblank.h>
41 static int hdlcd_load(struct drm_device *drm, unsigned long flags)  in hdlcd_load()  argument
43 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_load()
44 	struct platform_device *pdev = to_platform_device(drm->dev);  in hdlcd_load()
49 	hdlcd->clk = devm_clk_get(drm->dev, "pxlclk");  in hdlcd_load()
61 	hdlcd->mmio = devm_ioremap_resource(drm->dev, res);  in hdlcd_load()
79 	ret = of_reserved_mem_device_init(drm->dev);  in hdlcd_load()
83 	ret = dma_set_mask_and_coherent(drm->dev, DMA_BIT_MASK(32));  in hdlcd_load()
87 	ret = hdlcd_setup_crtc(drm);  in hdlcd_load()
93 	ret = drm_irq_install(drm, platform_get_irq(pdev, 0));  in hdlcd_load()
104 	of_reserved_mem_device_release(drm->dev);  in hdlcd_load()
115 static void hdlcd_setup_mode_config(struct drm_device *drm)  in hdlcd_setup_mode_config()  argument
117 	drm_mode_config_init(drm);  in hdlcd_setup_mode_config()
118 	drm->mode_config.min_width = 0;  in hdlcd_setup_mode_config()
119 	drm->mode_config.min_height = 0;  in hdlcd_setup_mode_config()
120 	drm->mode_config.max_width = HDLCD_MAX_XRES;  in hdlcd_setup_mode_config()
121 	drm->mode_config.max_height = HDLCD_MAX_YRES;  in hdlcd_setup_mode_config()
122 	drm->mode_config.funcs = &hdlcd_mode_config_funcs;  in hdlcd_setup_mode_config()
127 	struct drm_device *drm = arg;  in hdlcd_irq()  local
128 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_irq()
156 static void hdlcd_irq_preinstall(struct drm_device *drm)  in hdlcd_irq_preinstall()  argument
158 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_irq_preinstall()
164 static int hdlcd_irq_postinstall(struct drm_device *drm)  in hdlcd_irq_postinstall()  argument
167 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_irq_postinstall()
178 static void hdlcd_irq_uninstall(struct drm_device *drm)  in hdlcd_irq_uninstall()  argument
180 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_irq_uninstall()
199 	struct drm_device *drm = node->minor->dev;  in hdlcd_show_underrun_count()  local
200 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_show_underrun_count()
212 	struct drm_device *drm = node->minor->dev;  in hdlcd_show_pxlclock()  local
213 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_show_pxlclock()
249 	.desc = "ARM HDLCD Controller DRM",
257 	struct drm_device *drm;  in hdlcd_drm_bind()  local
265 	drm = drm_dev_alloc(&hdlcd_driver, dev);  in hdlcd_drm_bind()
266 	if (IS_ERR(drm))  in hdlcd_drm_bind()
267 		return PTR_ERR(drm);  in hdlcd_drm_bind()
269 	drm->dev_private = hdlcd;  in hdlcd_drm_bind()
270 	dev_set_drvdata(dev, drm);  in hdlcd_drm_bind()
272 	hdlcd_setup_mode_config(drm);  in hdlcd_drm_bind()
273 	ret = hdlcd_load(drm, 0);  in hdlcd_drm_bind()
280 	ret = component_bind_all(dev, drm);  in hdlcd_drm_bind()
292 	ret = drm_vblank_init(drm, drm->mode_config.num_crtc);  in hdlcd_drm_bind()
298 	drm_mode_config_reset(drm);  in hdlcd_drm_bind()
299 	drm_kms_helper_poll_init(drm);  in hdlcd_drm_bind()
301 	ret = drm_dev_register(drm, 0);  in hdlcd_drm_bind()
305 	drm_fbdev_generic_setup(drm, 32);  in hdlcd_drm_bind()
310 	drm_kms_helper_poll_fini(drm);  in hdlcd_drm_bind()
312 	pm_runtime_disable(drm->dev);  in hdlcd_drm_bind()
314 	drm_atomic_helper_shutdown(drm);  in hdlcd_drm_bind()
315 	component_unbind_all(dev, drm);  in hdlcd_drm_bind()
319 	drm_irq_uninstall(drm);  in hdlcd_drm_bind()
320 	of_reserved_mem_device_release(drm->dev);  in hdlcd_drm_bind()
322 	drm_mode_config_cleanup(drm);  in hdlcd_drm_bind()
324 	drm_dev_put(drm);  in hdlcd_drm_bind()
331 	struct drm_device *drm = dev_get_drvdata(dev);  in hdlcd_drm_unbind()  local
332 	struct hdlcd_drm_private *hdlcd = drm->dev_private;  in hdlcd_drm_unbind()
334 	drm_dev_unregister(drm);  in hdlcd_drm_unbind()
335 	drm_kms_helper_poll_fini(drm);  in hdlcd_drm_unbind()
336 	component_unbind_all(dev, drm);  in hdlcd_drm_unbind()
340 	drm_atomic_helper_shutdown(drm);  in hdlcd_drm_unbind()
341 	drm_irq_uninstall(drm);  in hdlcd_drm_unbind()
346 	drm_mode_config_cleanup(drm);  in hdlcd_drm_unbind()
347 	drm->dev_private = NULL;  in hdlcd_drm_unbind()
349 	drm_dev_put(drm);  in hdlcd_drm_unbind()
393 	struct drm_device *drm = dev_get_drvdata(dev);  in hdlcd_pm_suspend()  local
395 	return drm_mode_config_helper_suspend(drm);  in hdlcd_pm_suspend()
400 	struct drm_device *drm = dev_get_drvdata(dev);  in hdlcd_pm_resume()  local
402 	drm_mode_config_helper_resume(drm);  in hdlcd_pm_resume()
422 MODULE_DESCRIPTION("ARM HDLCD DRM driver");