35 	const struct rotary_encoder_platform_data *pdata;  member
49 static int rotary_encoder_get_state(const struct rotary_encoder_platform_data *pdata)  in rotary_encoder_get_state()  argument
51 	int a = !!gpio_get_value(pdata->gpio_a);  in rotary_encoder_get_state()
52 	int b = !!gpio_get_value(pdata->gpio_b);  in rotary_encoder_get_state()
54 	a ^= pdata->inverted_a;  in rotary_encoder_get_state()
55 	b ^= pdata->inverted_b;  in rotary_encoder_get_state()
62 	const struct rotary_encoder_platform_data *pdata = encoder->pdata;  in rotary_encoder_report_event()  local
64 	if (pdata->relative_axis) {  in rotary_encoder_report_event()
66 				 pdata->axis, encoder->dir ? -1 : 1);  in rotary_encoder_report_event()
72 			if (pdata->rollover)  in rotary_encoder_report_event()
73 				pos += pdata->steps;  in rotary_encoder_report_event()
78 			if (pdata->rollover || pos < pdata->steps)  in rotary_encoder_report_event()
82 		if (pdata->rollover)  in rotary_encoder_report_event()
83 			pos %= pdata->steps;  in rotary_encoder_report_event()
86 		input_report_abs(encoder->input, pdata->axis, encoder->pos);  in rotary_encoder_report_event()
97 	state = rotary_encoder_get_state(encoder->pdata);  in rotary_encoder_irq()
126 	state = rotary_encoder_get_state(encoder->pdata);  in rotary_encoder_half_period_irq()
152 	state = rotary_encoder_get_state(encoder->pdata);  in rotary_encoder_quarter_period_irq()
207 	struct rotary_encoder_platform_data *pdata;  in rotary_encoder_parse_dt()  local
214 	pdata = kzalloc(sizeof(struct rotary_encoder_platform_data),  in rotary_encoder_parse_dt()
216 	if (!pdata)  in rotary_encoder_parse_dt()
219 	of_property_read_u32(np, "rotary-encoder,steps", &pdata->steps);  in rotary_encoder_parse_dt()
220 	of_property_read_u32(np, "linux,axis", &pdata->axis);  in rotary_encoder_parse_dt()
222 	pdata->gpio_a = of_get_gpio_flags(np, 0, &flags);  in rotary_encoder_parse_dt()
223 	pdata->inverted_a = flags & OF_GPIO_ACTIVE_LOW;  in rotary_encoder_parse_dt()
225 	pdata->gpio_b = of_get_gpio_flags(np, 1, &flags);  in rotary_encoder_parse_dt()
226 	pdata->inverted_b = flags & OF_GPIO_ACTIVE_LOW;  in rotary_encoder_parse_dt()
228 	pdata->relative_axis =  in rotary_encoder_parse_dt()
230 	pdata->rollover = of_property_read_bool(np, "rotary-encoder,rollover");  in rotary_encoder_parse_dt()
233 				     &pdata->steps_per_period);  in rotary_encoder_parse_dt()
241 			pdata->steps_per_period = 2;  in rotary_encoder_parse_dt()
244 			pdata->steps_per_period = 1;  in rotary_encoder_parse_dt()
248 	pdata->wakeup_source = of_property_read_bool(np, "wakeup-source");  in rotary_encoder_parse_dt()
250 	return pdata;  in rotary_encoder_parse_dt()
263 	const struct rotary_encoder_platform_data *pdata = dev_get_platdata(dev);  in rotary_encoder_probe()  local
269 	if (!pdata) {  in rotary_encoder_probe()
270 		pdata = rotary_encoder_parse_dt(dev);  in rotary_encoder_probe()
271 		if (IS_ERR(pdata))  in rotary_encoder_probe()
272 			return PTR_ERR(pdata);  in rotary_encoder_probe()
274 		if (!pdata) {  in rotary_encoder_probe()
288 	encoder->pdata = pdata;  in rotary_encoder_probe()
294 	if (pdata->relative_axis) {  in rotary_encoder_probe()
296 		input->relbit[0] = BIT_MASK(pdata->axis);  in rotary_encoder_probe()
300 				     pdata->axis, 0, pdata->steps, 0, 1);  in rotary_encoder_probe()
304 	err = gpio_request_one(pdata->gpio_a, GPIOF_IN, dev_name(dev));  in rotary_encoder_probe()
306 		dev_err(dev, "unable to request GPIO %d\n", pdata->gpio_a);  in rotary_encoder_probe()
310 	err = gpio_request_one(pdata->gpio_b, GPIOF_IN, dev_name(dev));  in rotary_encoder_probe()
312 		dev_err(dev, "unable to request GPIO %d\n", pdata->gpio_b);  in rotary_encoder_probe()
316 	encoder->irq_a = gpio_to_irq(pdata->gpio_a);  in rotary_encoder_probe()
317 	encoder->irq_b = gpio_to_irq(pdata->gpio_b);  in rotary_encoder_probe()
319 	switch (pdata->steps_per_period) {  in rotary_encoder_probe()
322 		encoder->last_stable = rotary_encoder_get_state(pdata);  in rotary_encoder_probe()
326 		encoder->last_stable = rotary_encoder_get_state(pdata);  in rotary_encoder_probe()
333 			pdata->steps_per_period);  in rotary_encoder_probe()
360 	device_init_wakeup(&pdev->dev, pdata->wakeup_source);  in rotary_encoder_probe()
371 	gpio_free(pdata->gpio_b);  in rotary_encoder_probe()
373 	gpio_free(pdata->gpio_a);  in rotary_encoder_probe()
378 		kfree(pdata);  in rotary_encoder_probe()
386 	const struct rotary_encoder_platform_data *pdata = encoder->pdata;  in rotary_encoder_remove()  local
392 	gpio_free(pdata->gpio_a);  in rotary_encoder_remove()
393 	gpio_free(pdata->gpio_b);  in rotary_encoder_remove()
399 		kfree(pdata);  in rotary_encoder_remove()