90 #define dbg_reg(dev, priv, reg) \  argument
91 	dev_dbg(dev, "%20s= 0x%08x\n", #reg, readl((priv)->regs + reg))
166 static void ts_reg_dump(struct iproc_ts_priv *priv)  in ts_reg_dump()  argument
168 	struct device *dev = &priv->pdev->dev;  in ts_reg_dump()
170 	dbg_reg(dev, priv, REGCTL1);  in ts_reg_dump()
171 	dbg_reg(dev, priv, REGCTL2);  in ts_reg_dump()
172 	dbg_reg(dev, priv, INTERRUPT_THRES);  in ts_reg_dump()
173 	dbg_reg(dev, priv, INTERRUPT_MASK);  in ts_reg_dump()
174 	dbg_reg(dev, priv, INTERRUPT_STATUS);  in ts_reg_dump()
175 	dbg_reg(dev, priv, CONTROLLER_STATUS);  in ts_reg_dump()
176 	dbg_reg(dev, priv, FIFO_DATA);  in ts_reg_dump()
177 	dbg_reg(dev, priv, ANALOG_CONTROL);  in ts_reg_dump()
178 	dbg_reg(dev, priv, AUX_DATA);  in ts_reg_dump()
179 	dbg_reg(dev, priv, DEBOUNCE_CNTR_STAT);  in ts_reg_dump()
180 	dbg_reg(dev, priv, SCAN_CNTR_STAT);  in ts_reg_dump()
181 	dbg_reg(dev, priv, REM_CNTR_STAT);  in ts_reg_dump()
182 	dbg_reg(dev, priv, SETTLING_TIMER_STAT);  in ts_reg_dump()
183 	dbg_reg(dev, priv, SPARE_REG);  in ts_reg_dump()
184 	dbg_reg(dev, priv, SOFT_BYPASS_CONTROL);  in ts_reg_dump()
185 	dbg_reg(dev, priv, SOFT_BYPASS_DATA);  in ts_reg_dump()
191 	struct iproc_ts_priv *priv = platform_get_drvdata(pdev);  in iproc_touchscreen_interrupt()  local
199 	intr_status = readl(priv->regs + INTERRUPT_STATUS);  in iproc_touchscreen_interrupt()
205 	writel(intr_status, priv->regs + INTERRUPT_STATUS);  in iproc_touchscreen_interrupt()
209 		if (readl(priv->regs + CONTROLLER_STATUS) & TS_PEN_DOWN)  in iproc_touchscreen_interrupt()
210 			priv->pen_status = PEN_DOWN_STATUS;  in iproc_touchscreen_interrupt()
212 			priv->pen_status = PEN_UP_STATUS;  in iproc_touchscreen_interrupt()
214 		input_report_key(priv->idev, BTN_TOUCH, priv->pen_status);  in iproc_touchscreen_interrupt()
217 		dev_dbg(&priv->pdev->dev,  in iproc_touchscreen_interrupt()
218 			"pen up-down (%d)\n", priv->pen_status);  in iproc_touchscreen_interrupt()
223 		for (i = 0; i < priv->cfg_params.fifo_threshold; i++) {  in iproc_touchscreen_interrupt()
224 			raw_coordinate = readl(priv->regs + FIFO_DATA);  in iproc_touchscreen_interrupt()
243 			if (priv->cfg_params.invert_x)  in iproc_touchscreen_interrupt()
244 				x = priv->cfg_params.max_x - x;  in iproc_touchscreen_interrupt()
246 			if (priv->cfg_params.invert_y)  in iproc_touchscreen_interrupt()
247 				y = priv->cfg_params.max_y - y;  in iproc_touchscreen_interrupt()
249 			input_report_abs(priv->idev, ABS_X, x);  in iproc_touchscreen_interrupt()
250 			input_report_abs(priv->idev, ABS_Y, y);  in iproc_touchscreen_interrupt()
253 			dev_dbg(&priv->pdev->dev, "xy (0x%x 0x%x)\n", x, y);  in iproc_touchscreen_interrupt()
258 		input_sync(priv->idev);  in iproc_touchscreen_interrupt()
265 	struct iproc_ts_priv *priv = input_get_drvdata(idev);  in iproc_ts_start()  local
270 	error = clk_prepare_enable(priv->tsc_clk);  in iproc_ts_start()
272 		dev_err(&priv->pdev->dev, "%s clk_prepare_enable failed %d\n",  in iproc_ts_start()
282 	writel(val, priv->regs + INTERRUPT_MASK);  in iproc_ts_start()
284 	writel(priv->cfg_params.fifo_threshold, priv->regs + INTERRUPT_THRES);  in iproc_ts_start()
288 	val |= priv->cfg_params.scanning_period << SCANNING_PERIOD_SHIFT;  in iproc_ts_start()
289 	val |= priv->cfg_params.debounce_timeout << DEBOUNCE_TIMEOUT_SHIFT;  in iproc_ts_start()
290 	val |= priv->cfg_params.settling_timeout << SETTLING_TIMEOUT_SHIFT;  in iproc_ts_start()
291 	val |= priv->cfg_params.touch_timeout << TOUCH_TIMEOUT_SHIFT;  in iproc_ts_start()
292 	writel(val, priv->regs + REGCTL1);  in iproc_ts_start()
295 	val = readl(priv->regs + INTERRUPT_STATUS);  in iproc_ts_start()
297 	writel(val, priv->regs + INTERRUPT_STATUS);  in iproc_ts_start()
300 	val = readl(priv->regs + REGCTL2);  in iproc_ts_start()
304 	val |= priv->cfg_params.average_data << TS_CONTROLLER_AVGDATA_SHIFT;  in iproc_ts_start()
311 	writel(val, priv->regs + REGCTL2);  in iproc_ts_start()
313 	ts_reg_dump(priv);  in iproc_ts_start()
321 	struct iproc_ts_priv *priv = input_get_drvdata(dev);  in iproc_ts_stop()  local
323 	writel(0, priv->regs + INTERRUPT_MASK); /* Disable all interrupts */  in iproc_ts_stop()
326 	val = readl(priv->regs + REGCTL2);  in iproc_ts_stop()
328 	writel(val, priv->regs + REGCTL2);  in iproc_ts_stop()
330 	clk_disable(priv->tsc_clk);  in iproc_ts_stop()
333 static int iproc_get_tsc_config(struct device *dev, struct iproc_ts_priv *priv)  in iproc_get_tsc_config()  argument
338 	priv->cfg_params = iproc_default_config;  in iproc_get_tsc_config()
349 		priv->cfg_params.scanning_period = val;  in iproc_get_tsc_config()
358 		priv->cfg_params.debounce_timeout = val;  in iproc_get_tsc_config()
367 		priv->cfg_params.settling_timeout = val;  in iproc_get_tsc_config()
376 		priv->cfg_params.touch_timeout = val;  in iproc_get_tsc_config()
384 		priv->cfg_params.average_data = val;  in iproc_get_tsc_config()
393 		priv->cfg_params.fifo_threshold = val;  in iproc_get_tsc_config()
397 	of_property_read_u32(np, "touchscreen-size-x", &priv->cfg_params.max_x);  in iproc_get_tsc_config()
398 	of_property_read_u32(np, "touchscreen-size-y", &priv->cfg_params.max_y);  in iproc_get_tsc_config()
401 			     &priv->cfg_params.fuzz_x);  in iproc_get_tsc_config()
403 			     &priv->cfg_params.fuzz_y);  in iproc_get_tsc_config()
405 	priv->cfg_params.invert_x =  in iproc_get_tsc_config()
407 	priv->cfg_params.invert_y =  in iproc_get_tsc_config()
415 	struct iproc_ts_priv *priv;  in iproc_ts_probe()  local
421 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);  in iproc_ts_probe()
422 	if (!priv)  in iproc_ts_probe()
427 	priv->regs = devm_ioremap_resource(&pdev->dev, res);  in iproc_ts_probe()
428 	if (IS_ERR(priv->regs)) {  in iproc_ts_probe()
429 		error = PTR_ERR(priv->regs);  in iproc_ts_probe()
434 	priv->tsc_clk = devm_clk_get(&pdev->dev, "tsc_clk");  in iproc_ts_probe()
435 	if (IS_ERR(priv->tsc_clk)) {  in iproc_ts_probe()
436 		error = PTR_ERR(priv->tsc_clk);  in iproc_ts_probe()
442 	priv->pdev = pdev;  in iproc_ts_probe()
443 	error = iproc_get_tsc_config(&pdev->dev, priv);  in iproc_ts_probe()
455 	priv->idev = idev;  in iproc_ts_probe()
456 	priv->pen_status = PEN_UP_STATUS;  in iproc_ts_probe()
470 	input_set_abs_params(idev, ABS_X, X_MIN, priv->cfg_params.max_x,  in iproc_ts_probe()
471 			     priv->cfg_params.fuzz_x, 0);  in iproc_ts_probe()
472 	input_set_abs_params(idev, ABS_Y, Y_MIN, priv->cfg_params.max_y,  in iproc_ts_probe()
473 			     priv->cfg_params.fuzz_y, 0);  in iproc_ts_probe()
478 	input_set_drvdata(idev, priv);  in iproc_ts_probe()
479 	platform_set_drvdata(pdev, priv);  in iproc_ts_probe()
494 	error = input_register_device(priv->idev);  in iproc_ts_probe()