54 			       const struct axi_fan_control_data *ctl)  in axi_iowrite()  argument
56 	iowrite32(val, ctl->base + reg);  in axi_iowrite()
60 			     const struct axi_fan_control_data *ctl)  in axi_ioread()  argument
62 	return ioread32(ctl->base + reg);  in axi_ioread()
65 static long axi_fan_control_get_pwm_duty(const struct axi_fan_control_data *ctl)  in axi_fan_control_get_pwm_duty()  argument
67 	u32 pwm_width = axi_ioread(ADI_REG_PWM_WIDTH, ctl);  in axi_fan_control_get_pwm_duty()
68 	u32 pwm_period = axi_ioread(ADI_REG_PWM_PERIOD, ctl);  in axi_fan_control_get_pwm_duty()
77 					struct axi_fan_control_data *ctl)  in axi_fan_control_set_pwm_duty()  argument
79 	u32 pwm_period = axi_ioread(ADI_REG_PWM_PERIOD, ctl);  in axi_fan_control_set_pwm_duty()
85 	axi_iowrite(new_width, ADI_REG_PWM_WIDTH, ctl);  in axi_fan_control_set_pwm_duty()
90 static long axi_fan_control_get_fan_rpm(const struct axi_fan_control_data *ctl)  in axi_fan_control_get_fan_rpm()  argument
92 	const u32 tach = axi_ioread(ADI_REG_TACH_MEASUR, ctl);  in axi_fan_control_get_fan_rpm()
105 	return DIV_ROUND_CLOSEST(60 * ctl->clk_rate, ctl->ppr * tach);  in axi_fan_control_get_fan_rpm()
110 	struct axi_fan_control_data *ctl = dev_get_drvdata(dev);  in axi_fan_control_read_temp()  local
115 		raw_temp = axi_ioread(ADI_REG_TEMPERATURE, ctl);  in axi_fan_control_read_temp()
131 	struct axi_fan_control_data *ctl = dev_get_drvdata(dev);  in axi_fan_control_read_fan()  local
135 		*val = ctl->fan_fault;  in axi_fan_control_read_fan()
137 		ctl->fan_fault = 0;  in axi_fan_control_read_fan()
140 		*val = axi_fan_control_get_fan_rpm(ctl);  in axi_fan_control_read_fan()
149 	struct axi_fan_control_data *ctl = dev_get_drvdata(dev);  in axi_fan_control_read_pwm()  local
153 		*val = axi_fan_control_get_pwm_duty(ctl);  in axi_fan_control_read_pwm()
162 	struct axi_fan_control_data *ctl = dev_get_drvdata(dev);  in axi_fan_control_write_pwm()  local
166 		return axi_fan_control_set_pwm_duty(val, ctl);  in axi_fan_control_write_pwm()
282 	struct axi_fan_control_data *ctl = (struct axi_fan_control_data *)data;  in axi_fan_control_irq_handler()  local
283 	u32 irq_pending = axi_ioread(ADI_REG_IRQ_PENDING, ctl);  in axi_fan_control_irq_handler()
287 		if (ctl->update_tacho_params) {  in axi_fan_control_irq_handler()
288 			u32 new_tach = axi_ioread(ADI_REG_TACH_MEASUR, ctl);  in axi_fan_control_irq_handler()
293 			axi_iowrite(new_tach, ADI_REG_TACH_PERIOD, ctl);  in axi_fan_control_irq_handler()
294 			axi_iowrite(tach_tol, ADI_REG_TACH_TOLERANCE, ctl);  in axi_fan_control_irq_handler()
295 			ctl->update_tacho_params = false;  in axi_fan_control_irq_handler()
305 		if (!ctl->hw_pwm_req) {  in axi_fan_control_irq_handler()
306 			ctl->update_tacho_params = true;  in axi_fan_control_irq_handler()
308 			ctl->hw_pwm_req = false;  in axi_fan_control_irq_handler()
309 			sysfs_notify(&ctl->hdev->kobj, NULL, "pwm1");  in axi_fan_control_irq_handler()
315 		ctl->hw_pwm_req = true;  in axi_fan_control_irq_handler()
318 		ctl->fan_fault = 1;  in axi_fan_control_irq_handler()
322 	axi_iowrite(clear_mask, ADI_REG_IRQ_PENDING, ctl);  in axi_fan_control_irq_handler()
327 static int axi_fan_control_init(struct axi_fan_control_data *ctl,  in axi_fan_control_init()  argument
333 	ret = of_property_read_u32(np, "pulses-per-revolution", &ctl->ppr);  in axi_fan_control_init()
338 	if (ctl->ppr != 1 && ctl->ppr != 2 && ctl->ppr != 4)  in axi_fan_control_init()
346 		    ADI_REG_IRQ_MASK, ctl);  in axi_fan_control_init()
349 	axi_iowrite(0x01, ADI_REG_RSTN, ctl);  in axi_fan_control_init()
384 	struct axi_fan_control_data *ctl;  in axi_fan_control_probe()  local
395 	ctl = devm_kzalloc(&pdev->dev, sizeof(*ctl), GFP_KERNEL);  in axi_fan_control_probe()
396 	if (!ctl)  in axi_fan_control_probe()
399 	ctl->base = devm_platform_ioremap_resource(pdev, 0);  in axi_fan_control_probe()
400 	if (IS_ERR(ctl->base))  in axi_fan_control_probe()
401 		return PTR_ERR(ctl->base);  in axi_fan_control_probe()
409 	ctl->clk_rate = clk_get_rate(clk);  in axi_fan_control_probe()
410 	if (!ctl->clk_rate)  in axi_fan_control_probe()
413 	version = axi_ioread(ADI_AXI_REG_VERSION, ctl);  in axi_fan_control_probe()
426 	ctl->irq = platform_get_irq(pdev, 0);  in axi_fan_control_probe()
427 	if (ctl->irq < 0)  in axi_fan_control_probe()
428 		return ctl->irq;  in axi_fan_control_probe()
430 	ret = devm_request_threaded_irq(&pdev->dev, ctl->irq, NULL,  in axi_fan_control_probe()
433 					pdev->driver_override, ctl);  in axi_fan_control_probe()
439 	ret = axi_fan_control_init(ctl, pdev->dev.of_node);  in axi_fan_control_probe()
445 	ctl->hdev = devm_hwmon_device_register_with_info(&pdev->dev,  in axi_fan_control_probe()
447 							 ctl,  in axi_fan_control_probe()
451 	return PTR_ERR_OR_ZERO(ctl->hdev);  in axi_fan_control_probe()