54 static inline u32 zx2967_wdt_readl(struct zx2967_wdt *wdt, u16 reg)  in zx2967_wdt_readl()  argument
56 	return readl_relaxed(wdt->reg_base + reg);  in zx2967_wdt_readl()
59 static inline void zx2967_wdt_writel(struct zx2967_wdt *wdt, u16 reg, u32 val)  in zx2967_wdt_writel()  argument
61 	writel_relaxed(val | ZX2967_WDT_WRITEKEY, wdt->reg_base + reg);  in zx2967_wdt_writel()
64 static void zx2967_wdt_refresh(struct zx2967_wdt *wdt)  in zx2967_wdt_refresh()  argument
68 	val = zx2967_wdt_readl(wdt, ZX2967_WDT_REFRESH_REG);  in zx2967_wdt_refresh()
76 	zx2967_wdt_writel(wdt, ZX2967_WDT_REFRESH_REG,  in zx2967_wdt_refresh()
83 	struct zx2967_wdt *wdt = watchdog_get_drvdata(wdd);  in zx2967_wdt_set_timeout()  local
91 	zx2967_wdt_writel(wdt, ZX2967_WDT_CFG_REG,  in zx2967_wdt_set_timeout()
93 	zx2967_wdt_writel(wdt, ZX2967_WDT_LOAD_REG,  in zx2967_wdt_set_timeout()
95 	zx2967_wdt_refresh(wdt);  in zx2967_wdt_set_timeout()
101 static void __zx2967_wdt_start(struct zx2967_wdt *wdt)  in __zx2967_wdt_start()  argument
105 	val = zx2967_wdt_readl(wdt, ZX2967_WDT_START_REG);  in __zx2967_wdt_start()
107 	zx2967_wdt_writel(wdt, ZX2967_WDT_START_REG,  in __zx2967_wdt_start()
111 static void __zx2967_wdt_stop(struct zx2967_wdt *wdt)  in __zx2967_wdt_stop()  argument
115 	val = zx2967_wdt_readl(wdt, ZX2967_WDT_START_REG);  in __zx2967_wdt_stop()
117 	zx2967_wdt_writel(wdt, ZX2967_WDT_START_REG,  in __zx2967_wdt_stop()
123 	struct zx2967_wdt *wdt = watchdog_get_drvdata(wdd);  in zx2967_wdt_start()  local
126 	__zx2967_wdt_start(wdt);  in zx2967_wdt_start()
133 	struct zx2967_wdt *wdt = watchdog_get_drvdata(wdd);  in zx2967_wdt_stop()  local
135 	__zx2967_wdt_stop(wdt);  in zx2967_wdt_stop()
142 	struct zx2967_wdt *wdt = watchdog_get_drvdata(wdd);  in zx2967_wdt_keepalive()  local
144 	zx2967_wdt_refresh(wdt);  in zx2967_wdt_keepalive()
172 			"zte,wdt-reset-sysctrl", 3, 0, &out_args);  in zx2967_wdt_reset_sysctrl()
198 	struct zx2967_wdt *wdt;  in zx2967_wdt_probe()  local
202 	wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL);  in zx2967_wdt_probe()
203 	if (!wdt)  in zx2967_wdt_probe()
206 	platform_set_drvdata(pdev, wdt);  in zx2967_wdt_probe()
208 	wdt->wdt_device.info = &zx2967_wdt_ident;  in zx2967_wdt_probe()
209 	wdt->wdt_device.ops = &zx2967_wdt_ops;  in zx2967_wdt_probe()
210 	wdt->wdt_device.timeout = ZX2967_WDT_DEFAULT_TIMEOUT;  in zx2967_wdt_probe()
211 	wdt->wdt_device.max_timeout = ZX2967_WDT_MAX_TIMEOUT;  in zx2967_wdt_probe()
212 	wdt->wdt_device.min_timeout = ZX2967_WDT_MIN_TIMEOUT;  in zx2967_wdt_probe()
213 	wdt->wdt_device.parent = dev;  in zx2967_wdt_probe()
215 	wdt->reg_base = devm_platform_ioremap_resource(pdev, 0);  in zx2967_wdt_probe()
216 	if (IS_ERR(wdt->reg_base))  in zx2967_wdt_probe()
217 		return PTR_ERR(wdt->reg_base);  in zx2967_wdt_probe()
221 	wdt->clock = devm_clk_get(dev, NULL);  in zx2967_wdt_probe()
222 	if (IS_ERR(wdt->clock)) {  in zx2967_wdt_probe()
224 		return PTR_ERR(wdt->clock);  in zx2967_wdt_probe()
227 	ret = clk_prepare_enable(wdt->clock);  in zx2967_wdt_probe()
233 				       wdt->clock);  in zx2967_wdt_probe()
236 	clk_set_rate(wdt->clock, ZX2967_WDT_CLK_FREQ);  in zx2967_wdt_probe()
247 	watchdog_set_drvdata(&wdt->wdt_device, wdt);  in zx2967_wdt_probe()
248 	watchdog_init_timeout(&wdt->wdt_device,  in zx2967_wdt_probe()
250 	watchdog_set_nowayout(&wdt->wdt_device, WATCHDOG_NOWAYOUT);  in zx2967_wdt_probe()
252 	ret = devm_watchdog_register_device(dev, &wdt->wdt_device);  in zx2967_wdt_probe()
257 		 wdt->wdt_device.timeout, WATCHDOG_NOWAYOUT);  in zx2967_wdt_probe()
263 	{ .compatible = "zte,zx296718-wdt", },
271 		.name	= "zx2967-wdt",