266 	u32 val;  in iproc_ts_start()  local
281 	val = TS_PEN_INTR_MASK | TS_FIFO_INTR_MASK;  in iproc_ts_start()
282 	writel(val, priv->regs + INTERRUPT_MASK);  in iproc_ts_start()
287 	val = 0;  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()
296 	val |= TS_FIFO_INTR_MASK | TS_PEN_INTR_MASK;  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()
301 	val |= TS_CONTROLLER_EN_BIT | TS_WIRE_MODE_BIT;  in iproc_ts_start()
303 	val &= ~TS_CONTROLLER_AVGDATA_MASK;  in iproc_ts_start()
304 	val |= priv->cfg_params.average_data << TS_CONTROLLER_AVGDATA_SHIFT;  in iproc_ts_start()
306 	val &= ~(TS_CONTROLLER_PWR_LDO |	/* PWR up LDO */  in iproc_ts_start()
311 	writel(val, priv->regs + REGCTL2);  in iproc_ts_start()
320 	u32 val;  in iproc_ts_stop()  local
326 	val = readl(priv->regs + REGCTL2);  in iproc_ts_stop()
327 	val |= TS_CONTROLLER_PWR_TS;  in iproc_ts_stop()
328 	writel(val, priv->regs + REGCTL2);  in iproc_ts_stop()
336 	u32 val;  in iproc_get_tsc_config()  local
343 	if (of_property_read_u32(np, "scanning_period", &val) >= 0) {  in iproc_get_tsc_config()
344 		if (val < 1 || val > 256) {  in iproc_get_tsc_config()
346 				val);  in iproc_get_tsc_config()
349 		priv->cfg_params.scanning_period = val;  in iproc_get_tsc_config()
352 	if (of_property_read_u32(np, "debounce_timeout", &val) >= 0) {  in iproc_get_tsc_config()
353 		if (val > 255) {  in iproc_get_tsc_config()
355 				val);  in iproc_get_tsc_config()
358 		priv->cfg_params.debounce_timeout = val;  in iproc_get_tsc_config()
361 	if (of_property_read_u32(np, "settling_timeout", &val) >= 0) {  in iproc_get_tsc_config()
362 		if (val > 11) {  in iproc_get_tsc_config()
364 				val);  in iproc_get_tsc_config()
367 		priv->cfg_params.settling_timeout = val;  in iproc_get_tsc_config()
370 	if (of_property_read_u32(np, "touch_timeout", &val) >= 0) {  in iproc_get_tsc_config()
371 		if (val > 255) {  in iproc_get_tsc_config()
373 				val);  in iproc_get_tsc_config()
376 		priv->cfg_params.touch_timeout = val;  in iproc_get_tsc_config()
379 	if (of_property_read_u32(np, "average_data", &val) >= 0) {  in iproc_get_tsc_config()
380 		if (val > 8) {  in iproc_get_tsc_config()
381 			dev_err(dev, "average_data (%u) must be [0-8]\n", val);  in iproc_get_tsc_config()
384 		priv->cfg_params.average_data = val;  in iproc_get_tsc_config()
387 	if (of_property_read_u32(np, "fifo_threshold", &val) >= 0) {  in iproc_get_tsc_config()
388 		if (val > 31) {  in iproc_get_tsc_config()
390 				val);  in iproc_get_tsc_config()
393 		priv->cfg_params.fifo_threshold = val;  in iproc_get_tsc_config()