70 } dw_wdt;  variable
74 	return readl(dw_wdt.regs + WDOG_CONTROL_REG_OFFSET) &  in dw_wdt_is_enabled()
84 	return (1 << (16 + top)) / clk_get_rate(dw_wdt.clk);  in dw_wdt_top_in_seconds()
89 	int top = readl(dw_wdt.regs + WDOG_TIMEOUT_RANGE_REG_OFFSET) & 0xF;  in dw_wdt_get_top()
96 	dw_wdt.next_heartbeat = jiffies + dw_wdt_get_top() * HZ;  in dw_wdt_set_next_heartbeat()
101 	writel(WDOG_COUNTER_RESTART_KICK_VALUE, dw_wdt.regs +  in dw_wdt_keepalive()
126 		dw_wdt.regs + WDOG_TIMEOUT_RANGE_REG_OFFSET);  in dw_wdt_set_top()
145 	writel(0, dw_wdt.regs + WDOG_TIMEOUT_RANGE_REG_OFFSET);  in dw_wdt_restart_handle()
146 	val = readl(dw_wdt.regs + WDOG_CONTROL_REG_OFFSET);  in dw_wdt_restart_handle()
148 		writel(WDOG_COUNTER_RESTART_KICK_VALUE, dw_wdt.regs +  in dw_wdt_restart_handle()
152 		       dw_wdt.regs + WDOG_CONTROL_REG_OFFSET);  in dw_wdt_restart_handle()
162 	if (time_before(jiffies, dw_wdt.next_heartbeat) ||  in dw_wdt_ping()
163 	    (!nowayout && !dw_wdt.in_use)) {  in dw_wdt_ping()
165 		mod_timer(&dw_wdt.timer, jiffies + WDT_TIMEOUT);  in dw_wdt_ping()
172 	if (test_and_set_bit(0, &dw_wdt.in_use))  in dw_wdt_open()
185 		       dw_wdt.regs + WDOG_CONTROL_REG_OFFSET);  in dw_wdt_open()
202 		dw_wdt.expect_close = 0;  in dw_wdt_write()
211 				dw_wdt.expect_close = 1;  in dw_wdt_write()
219 	mod_timer(&dw_wdt.timer, jiffies + WDT_TIMEOUT);  in dw_wdt_write()
226 	return readl(dw_wdt.regs + WDOG_CURRENT_COUNT_REG_OFFSET) /  in dw_wdt_time_left()
227 		clk_get_rate(dw_wdt.clk);  in dw_wdt_time_left()
276 	clear_bit(0, &dw_wdt.in_use);  in dw_wdt_release()
278 	if (!dw_wdt.expect_close) {  in dw_wdt_release()
279 		del_timer(&dw_wdt.timer);  in dw_wdt_release()
287 	dw_wdt.expect_close = 0;  in dw_wdt_release()
295 	clk_disable_unprepare(dw_wdt.clk);  in dw_wdt_suspend()
302 	int err = clk_prepare_enable(dw_wdt.clk);  in dw_wdt_resume()
335 	dw_wdt.regs = devm_ioremap_resource(&pdev->dev, mem);  in dw_wdt_drv_probe()
336 	if (IS_ERR(dw_wdt.regs))  in dw_wdt_drv_probe()
337 		return PTR_ERR(dw_wdt.regs);  in dw_wdt_drv_probe()
339 	dw_wdt.clk = devm_clk_get(&pdev->dev, NULL);  in dw_wdt_drv_probe()
340 	if (IS_ERR(dw_wdt.clk))  in dw_wdt_drv_probe()
341 		return PTR_ERR(dw_wdt.clk);  in dw_wdt_drv_probe()
343 	ret = clk_prepare_enable(dw_wdt.clk);  in dw_wdt_drv_probe()
351 	dw_wdt.restart_handler.notifier_call = dw_wdt_restart_handle;  in dw_wdt_drv_probe()
352 	dw_wdt.restart_handler.priority = 128;  in dw_wdt_drv_probe()
353 	ret = register_restart_handler(&dw_wdt.restart_handler);  in dw_wdt_drv_probe()
358 	setup_timer(&dw_wdt.timer, dw_wdt_ping, 0);  in dw_wdt_drv_probe()
359 	mod_timer(&dw_wdt.timer, jiffies + WDT_TIMEOUT);  in dw_wdt_drv_probe()
364 	clk_disable_unprepare(dw_wdt.clk);  in dw_wdt_drv_probe()
371 	unregister_restart_handler(&dw_wdt.restart_handler);  in dw_wdt_drv_remove()
375 	clk_disable_unprepare(dw_wdt.clk);  in dw_wdt_drv_remove()