drivers/watchdog/npcm_wdt.c

57 	struct npcm_wdt *wdt = to_npcm_wdt(wdd);
60 	val = readl(wdt->reg);
61 	writel(val | NPCM_WTR, wdt->reg);
68 	struct npcm_wdt *wdt = to_npcm_wdt(wdd);
71 	if (wdt->clk)
72 		clk_prepare_enable(wdt->clk);
97 	writel(val, wdt->reg);
104 	struct npcm_wdt *wdt = to_npcm_wdt(wdd);
106 	writel(0, wdt->reg);
108 	if (wdt->clk)
109 		clk_disable_unprepare(wdt->clk);
146 	struct npcm_wdt *wdt = data;
148 	watchdog_notify_pretimeout(&wdt->wdd);
156 	struct npcm_wdt *wdt = to_npcm_wdt(wdd);
159 	if (wdt->clk)
160 		clk_prepare_enable(wdt->clk);
162 	writel(NPCM_WTR | NPCM_WTRE | NPCM_WTE, wdt->reg);
170 	struct npcm_wdt *wdt = to_npcm_wdt(wdd);
172 	return readl(wdt->reg) & NPCM_WTE;
194 	struct npcm_wdt *wdt;
198 	wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL);
199 	if (!wdt)
202 	wdt->reg = devm_platform_ioremap_resource(pdev, 0);
203 	if (IS_ERR(wdt->reg))
204 		return PTR_ERR(wdt->reg);
206 	wdt->clk = devm_clk_get_optional(&pdev->dev, NULL);
207 	if (IS_ERR(wdt->clk))
208 		return PTR_ERR(wdt->clk);
214 	wdt->wdd.info = &npcm_wdt_info;
215 	wdt->wdd.ops = &npcm_wdt_ops;
216 	wdt->wdd.min_timeout = 1;
217 	wdt->wdd.max_timeout = 2750;
218 	wdt->wdd.parent = dev;
220 	wdt->wdd.timeout = 86;
221 	watchdog_init_timeout(&wdt->wdd, 0, dev);
224 	npcm_wdt_set_timeout(&wdt->wdd, wdt->wdd.timeout);
226 	if (npcm_is_running(&wdt->wdd)) {
228 		npcm_wdt_start(&wdt->wdd);
229 		set_bit(WDOG_HW_RUNNING, &wdt->wdd.status);
233 			       wdt);
237 	ret = devm_watchdog_register_device(dev, &wdt->wdd);
248 	{.compatible = "nuvoton,wpcm450-wdt"},
249 	{.compatible = "nuvoton,npcm750-wdt"},
258 		.name	= "npcm-wdt",