34 	const struct rotary_encoder_platform_data *pdata;  member
48 static int rotary_encoder_get_state(const struct rotary_encoder_platform_data *pdata)  in rotary_encoder_get_state()  argument
50 	int a = !!gpio_get_value(pdata->gpio_a);  in rotary_encoder_get_state()
51 	int b = !!gpio_get_value(pdata->gpio_b);  in rotary_encoder_get_state()
53 	a ^= pdata->inverted_a;  in rotary_encoder_get_state()
54 	b ^= pdata->inverted_b;  in rotary_encoder_get_state()
61 	const struct rotary_encoder_platform_data *pdata = encoder->pdata;  in rotary_encoder_report_event()  local
63 	if (pdata->relative_axis) {  in rotary_encoder_report_event()
65 				 pdata->axis, encoder->dir ? -1 : 1);  in rotary_encoder_report_event()
71 			if (pdata->rollover)  in rotary_encoder_report_event()
72 				pos += pdata->steps;  in rotary_encoder_report_event()
77 			if (pdata->rollover || pos < pdata->steps)  in rotary_encoder_report_event()
81 		if (pdata->rollover)  in rotary_encoder_report_event()
82 			pos %= pdata->steps;  in rotary_encoder_report_event()
85 		input_report_abs(encoder->input, pdata->axis, encoder->pos);  in rotary_encoder_report_event()
96 	state = rotary_encoder_get_state(encoder->pdata);  in rotary_encoder_irq()
125 	state = rotary_encoder_get_state(encoder->pdata);  in rotary_encoder_half_period_irq()
157 	struct rotary_encoder_platform_data *pdata;  in rotary_encoder_parse_dt()  local
163 	pdata = kzalloc(sizeof(struct rotary_encoder_platform_data),  in rotary_encoder_parse_dt()
165 	if (!pdata)  in rotary_encoder_parse_dt()
168 	of_property_read_u32(np, "rotary-encoder,steps", &pdata->steps);  in rotary_encoder_parse_dt()
169 	of_property_read_u32(np, "linux,axis", &pdata->axis);  in rotary_encoder_parse_dt()
171 	pdata->gpio_a = of_get_gpio_flags(np, 0, &flags);  in rotary_encoder_parse_dt()
172 	pdata->inverted_a = flags & OF_GPIO_ACTIVE_LOW;  in rotary_encoder_parse_dt()
174 	pdata->gpio_b = of_get_gpio_flags(np, 1, &flags);  in rotary_encoder_parse_dt()
175 	pdata->inverted_b = flags & OF_GPIO_ACTIVE_LOW;  in rotary_encoder_parse_dt()
177 	pdata->relative_axis = !!of_get_property(np,  in rotary_encoder_parse_dt()
179 	pdata->rollover = !!of_get_property(np,  in rotary_encoder_parse_dt()
181 	pdata->half_period = !!of_get_property(np,  in rotary_encoder_parse_dt()
184 	return pdata;  in rotary_encoder_parse_dt()
197 	const struct rotary_encoder_platform_data *pdata = dev_get_platdata(dev);  in rotary_encoder_probe()  local
203 	if (!pdata) {  in rotary_encoder_probe()
204 		pdata = rotary_encoder_parse_dt(dev);  in rotary_encoder_probe()
205 		if (IS_ERR(pdata))  in rotary_encoder_probe()
206 			return PTR_ERR(pdata);  in rotary_encoder_probe()
208 		if (!pdata) {  in rotary_encoder_probe()
222 	encoder->pdata = pdata;  in rotary_encoder_probe()
228 	if (pdata->relative_axis) {  in rotary_encoder_probe()
230 		input->relbit[0] = BIT_MASK(pdata->axis);  in rotary_encoder_probe()
234 				     pdata->axis, 0, pdata->steps, 0, 1);  in rotary_encoder_probe()
238 	err = gpio_request_one(pdata->gpio_a, GPIOF_IN, dev_name(dev));  in rotary_encoder_probe()
240 		dev_err(dev, "unable to request GPIO %d\n", pdata->gpio_a);  in rotary_encoder_probe()
244 	err = gpio_request_one(pdata->gpio_b, GPIOF_IN, dev_name(dev));  in rotary_encoder_probe()
246 		dev_err(dev, "unable to request GPIO %d\n", pdata->gpio_b);  in rotary_encoder_probe()
250 	encoder->irq_a = gpio_to_irq(pdata->gpio_a);  in rotary_encoder_probe()
251 	encoder->irq_b = gpio_to_irq(pdata->gpio_b);  in rotary_encoder_probe()
254 	if (pdata->half_period) {  in rotary_encoder_probe()
256 		encoder->last_stable = rotary_encoder_get_state(pdata);  in rotary_encoder_probe()
292 	gpio_free(pdata->gpio_b);  in rotary_encoder_probe()
294 	gpio_free(pdata->gpio_a);  in rotary_encoder_probe()
299 		kfree(pdata);  in rotary_encoder_probe()
307 	const struct rotary_encoder_platform_data *pdata = encoder->pdata;  in rotary_encoder_remove()  local
311 	gpio_free(pdata->gpio_a);  in rotary_encoder_remove()
312 	gpio_free(pdata->gpio_b);  in rotary_encoder_remove()
318 		kfree(pdata);  in rotary_encoder_remove()