drivers/watchdog/at91rm9200_wdt.c

1 // SPDX-License-Identifier: GPL-2.0+
19 #include <linux/mfd/syscon/atmel-st.h>
109 		return -EBUSY;  in at91_wdt_open()
131  * Change the watchdog time interval.
138 	 * Since WDV is a 16-bit counter, the maximum period is  in at91_wdt_settimeout()
142 		return -EINVAL;  in at91_wdt_settimeout()
156  * Handle commands from user-space.
168 				sizeof(at91_wdt_info)) ? -EFAULT : 0;  in at91_wdt_ioctl()
174 			return -EFAULT;  in at91_wdt_ioctl()
185 			return -EFAULT;  in at91_wdt_ioctl()
187 			return -EINVAL;  in at91_wdt_ioctl()
195 		return -ENOTTY;  in at91_wdt_ioctl()
228 	struct device *dev = &pdev->dev;  in at91wdt_probe()
233 		return -EBUSY;  in at91wdt_probe()
234 	at91wdt_miscdev.parent = &pdev->dev;  in at91wdt_probe()
236 	parent = dev->parent;  in at91wdt_probe()
239 		return -ENODEV;  in at91wdt_probe()
242 	regmap_st = syscon_node_to_regmap(parent->of_node);  in at91wdt_probe()
244 		return -ENODEV;  in at91wdt_probe()
261 	struct device *dev = &pdev->dev;  in at91wdt_remove()
291 	{ .compatible = "atmel,at91rm9200-wdt" },