41 struct st_wdog {  struct
65 static void st_wdog_setup(struct st_wdog *st_wdog, bool enable)  in st_wdog_setup()  argument
68 	if (st_wdog->syscfg->reset_type_reg)  in st_wdog_setup()
69 		regmap_update_bits(st_wdog->regmap,  in st_wdog_setup()
70 				   st_wdog->syscfg->reset_type_reg,  in st_wdog_setup()
71 				   st_wdog->syscfg->reset_type_mask,  in st_wdog_setup()
72 				   st_wdog->warm_reset);  in st_wdog_setup()
75 	regmap_update_bits(st_wdog->regmap,  in st_wdog_setup()
76 			   st_wdog->syscfg->enable_reg,  in st_wdog_setup()
77 			   st_wdog->syscfg->enable_mask,  in st_wdog_setup()
78 			   enable ? 0 : st_wdog->syscfg->enable_mask);  in st_wdog_setup()
81 static void st_wdog_load_timer(struct st_wdog *st_wdog, unsigned int timeout)  in st_wdog_load_timer()  argument
83 	unsigned long clkrate = st_wdog->clkrate;  in st_wdog_load_timer()
85 	writel_relaxed(timeout * clkrate, st_wdog->base + LPC_LPA_LSB_OFF);  in st_wdog_load_timer()
86 	writel_relaxed(1, st_wdog->base + LPC_LPA_START_OFF);  in st_wdog_load_timer()
91 	struct st_wdog *st_wdog = watchdog_get_drvdata(wdd);  in st_wdog_start()  local
93 	writel_relaxed(1, st_wdog->base + LPC_WDT_OFF);  in st_wdog_start()
100 	struct st_wdog *st_wdog = watchdog_get_drvdata(wdd);  in st_wdog_stop()  local
102 	writel_relaxed(0, st_wdog->base + LPC_WDT_OFF);  in st_wdog_stop()
110 	struct st_wdog *st_wdog = watchdog_get_drvdata(wdd);  in st_wdog_set_timeout()  local
113 	st_wdog_load_timer(st_wdog, timeout);  in st_wdog_set_timeout()
120 	struct st_wdog *st_wdog = watchdog_get_drvdata(wdd);  in st_wdog_keepalive()  local
122 	st_wdog_load_timer(st_wdog, wdd->timeout);  in st_wdog_keepalive()
155 	struct st_wdog *st_wdog;  in st_wdog_probe()  local
172 	st_wdog = devm_kzalloc(dev, sizeof(*st_wdog), GFP_KERNEL);  in st_wdog_probe()
173 	if (!st_wdog)  in st_wdog_probe()
181 	st_wdog->syscfg	= (struct st_wdog_syscfg *)match->data;  in st_wdog_probe()
199 	st_wdog->dev		= dev;  in st_wdog_probe()
200 	st_wdog->base		= base;  in st_wdog_probe()
201 	st_wdog->clk		= clk;  in st_wdog_probe()
202 	st_wdog->regmap		= regmap;  in st_wdog_probe()
203 	st_wdog->warm_reset	= of_property_read_bool(np, "st,warm_reset");  in st_wdog_probe()
204 	st_wdog->clkrate	= clk_get_rate(st_wdog->clk);  in st_wdog_probe()
206 	if (!st_wdog->clkrate) {  in st_wdog_probe()
210 	st_wdog_dev.max_timeout = 0xFFFFFFFF / st_wdog->clkrate;  in st_wdog_probe()
222 	watchdog_set_drvdata(&st_wdog_dev, st_wdog);  in st_wdog_probe()
234 	st_wdog_setup(st_wdog, true);  in st_wdog_probe()
237 		 st_wdog->warm_reset ? "warm" : "cold");  in st_wdog_probe()
244 	struct st_wdog *st_wdog = watchdog_get_drvdata(&st_wdog_dev);  in st_wdog_remove()  local
246 	st_wdog_setup(st_wdog, false);  in st_wdog_remove()
251 	struct st_wdog *st_wdog = watchdog_get_drvdata(&st_wdog_dev);  in st_wdog_suspend()  local
256 	st_wdog_setup(st_wdog, false);  in st_wdog_suspend()
258 	clk_disable(st_wdog->clk);  in st_wdog_suspend()
265 	struct st_wdog *st_wdog = watchdog_get_drvdata(&st_wdog_dev);  in st_wdog_resume()  local
268 	ret = clk_enable(st_wdog->clk);  in st_wdog_resume()
272 		clk_unprepare(st_wdog->clk);  in st_wdog_resume()
276 	st_wdog_setup(st_wdog, true);  in st_wdog_resume()
279 		st_wdog_load_timer(st_wdog, st_wdog_dev.timeout);  in st_wdog_resume()