44 	struct hdlcd_drm_private *hdlcd = arg;  in hdlcd_irq()  local
47 	irq_status = hdlcd_read(hdlcd, HDLCD_REG_INT_STATUS);  in hdlcd_irq()
51 		atomic_inc(&hdlcd->buffer_underrun_count);  in hdlcd_irq()
54 		atomic_inc(&hdlcd->dma_end_count);  in hdlcd_irq()
57 		atomic_inc(&hdlcd->bus_error_count);  in hdlcd_irq()
60 		atomic_inc(&hdlcd->vsync_count);  in hdlcd_irq()
64 		drm_crtc_handle_vblank(&hdlcd->crtc);  in hdlcd_irq()
67 	hdlcd_write(hdlcd, HDLCD_REG_INT_CLEAR, irq_status);  in hdlcd_irq()
72 static int hdlcd_irq_install(struct hdlcd_drm_private *hdlcd)  in hdlcd_irq_install()  argument
77 	hdlcd_write(hdlcd, HDLCD_REG_INT_MASK, 0);  in hdlcd_irq_install()
78 	hdlcd_write(hdlcd, HDLCD_REG_INT_CLEAR, ~0);  in hdlcd_irq_install()
80 	ret = request_irq(hdlcd->irq, hdlcd_irq, 0, "hdlcd", hdlcd);  in hdlcd_irq_install()
86 	hdlcd_write(hdlcd, HDLCD_REG_INT_MASK, HDLCD_DEBUG_INT_MASK);  in hdlcd_irq_install()
92 static void hdlcd_irq_uninstall(struct hdlcd_drm_private *hdlcd)  in hdlcd_irq_uninstall()  argument
95 	hdlcd_write(hdlcd, HDLCD_REG_INT_MASK, 0);  in hdlcd_irq_uninstall()
97 	free_irq(hdlcd->irq, hdlcd);  in hdlcd_irq_uninstall()
102 	struct hdlcd_drm_private *hdlcd = drm_to_hdlcd_priv(drm);  in hdlcd_load()  local
107 	hdlcd->clk = devm_clk_get(drm->dev, "pxlclk");  in hdlcd_load()
108 	if (IS_ERR(hdlcd->clk))  in hdlcd_load()
109 		return PTR_ERR(hdlcd->clk);  in hdlcd_load()
112 	atomic_set(&hdlcd->buffer_underrun_count, 0);  in hdlcd_load()
113 	atomic_set(&hdlcd->bus_error_count, 0);  in hdlcd_load()
114 	atomic_set(&hdlcd->vsync_count, 0);  in hdlcd_load()
115 	atomic_set(&hdlcd->dma_end_count, 0);  in hdlcd_load()
118 	hdlcd->mmio = devm_platform_ioremap_resource(pdev, 0);  in hdlcd_load()
119 	if (IS_ERR(hdlcd->mmio)) {  in hdlcd_load()
121 		ret = PTR_ERR(hdlcd->mmio);  in hdlcd_load()
122 		hdlcd->mmio = NULL;  in hdlcd_load()
126 	version = hdlcd_read(hdlcd, HDLCD_REG_VERSION);  in hdlcd_load()
153 	hdlcd->irq = ret;  in hdlcd_load()
155 	ret = hdlcd_irq_install(hdlcd);  in hdlcd_load()
164 	drm_crtc_cleanup(&hdlcd->crtc);  in hdlcd_load()
199 	struct hdlcd_drm_private *hdlcd = drm_to_hdlcd_priv(drm);  in hdlcd_show_underrun_count()  local
201 	seq_printf(m, "underrun : %d\n", atomic_read(&hdlcd->buffer_underrun_count));  in hdlcd_show_underrun_count()
202 	seq_printf(m, "dma_end  : %d\n", atomic_read(&hdlcd->dma_end_count));  in hdlcd_show_underrun_count()
203 	seq_printf(m, "bus_error: %d\n", atomic_read(&hdlcd->bus_error_count));  in hdlcd_show_underrun_count()
204 	seq_printf(m, "vsync    : %d\n", atomic_read(&hdlcd->vsync_count));  in hdlcd_show_underrun_count()
212 	struct hdlcd_drm_private *hdlcd = drm_to_hdlcd_priv(drm);  in hdlcd_show_pxlclock()  local
213 	unsigned long clkrate = clk_get_rate(hdlcd->clk);  in hdlcd_show_pxlclock()
214 	unsigned long mode_clock = hdlcd->crtc.mode.crtc_clock * 1000;  in hdlcd_show_pxlclock()
243 	struct hdlcd_drm_private *hdlcd;  in hdlcd_drm_bind()  local
246 	hdlcd = devm_drm_dev_alloc(dev, &hdlcd_driver, typeof(*hdlcd), base);  in hdlcd_drm_bind()
247 	if (IS_ERR(hdlcd))  in hdlcd_drm_bind()
248 		return PTR_ERR(hdlcd);  in hdlcd_drm_bind()
250 	drm = &hdlcd->base;  in hdlcd_drm_bind()
263 	hdlcd->crtc.port = of_graph_get_port_by_id(dev->of_node, 0);  in hdlcd_drm_bind()
287 	if (hdlcd_read(hdlcd, HDLCD_REG_COMMAND)) {  in hdlcd_drm_bind()
288 		hdlcd_write(hdlcd, HDLCD_REG_COMMAND, 0);  in hdlcd_drm_bind()
315 	of_node_put(hdlcd->crtc.port);  in hdlcd_drm_bind()
316 	hdlcd->crtc.port = NULL;  in hdlcd_drm_bind()
317 	hdlcd_irq_uninstall(hdlcd);  in hdlcd_drm_bind()
327 	struct hdlcd_drm_private *hdlcd = drm_to_hdlcd_priv(drm);  in hdlcd_drm_unbind()  local
332 	of_node_put(hdlcd->crtc.port);  in hdlcd_drm_unbind()
333 	hdlcd->crtc.port = NULL;  in hdlcd_drm_unbind()
336 	hdlcd_irq_uninstall(hdlcd);  in hdlcd_drm_unbind()