96 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_restart()  local
100 	if (wdev->ext_reset)  in imx2_wdt_restart()
106 	regmap_write(wdev->regmap, IMX2_WDT_WCR, wcr_enable);  in imx2_wdt_restart()
114 	regmap_write(wdev->regmap, IMX2_WDT_WCR, wcr_enable);  in imx2_wdt_restart()
115 	regmap_write(wdev->regmap, IMX2_WDT_WCR, wcr_enable);  in imx2_wdt_restart()
125 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_setup()  local
128 	regmap_read(wdev->regmap, IMX2_WDT_WCR, &val);  in imx2_wdt_setup()
135 	if (!wdev->ext_reset)  in imx2_wdt_setup()
145 	regmap_write(wdev->regmap, IMX2_WDT_WCR, val);  in imx2_wdt_setup()
149 	regmap_write(wdev->regmap, IMX2_WDT_WCR, val);  in imx2_wdt_setup()
152 static inline bool imx2_wdt_is_running(struct imx2_wdt_device *wdev)  in imx2_wdt_is_running()  argument
156 	regmap_read(wdev->regmap, IMX2_WDT_WCR, &val);  in imx2_wdt_is_running()
163 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_ping()  local
165 	if (!wdev->clk_is_on)  in imx2_wdt_ping()
168 	regmap_write(wdev->regmap, IMX2_WDT_WSR, IMX2_WDT_SEQ1);  in imx2_wdt_ping()
169 	regmap_write(wdev->regmap, IMX2_WDT_WSR, IMX2_WDT_SEQ2);  in imx2_wdt_ping()
176 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in __imx2_wdt_set_timeout()  local
178 	regmap_update_bits(wdev->regmap, IMX2_WDT_WCR, IMX2_WDT_WCR_WT,  in __imx2_wdt_set_timeout()
196 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_set_pretimeout()  local
203 	regmap_update_bits(wdev->regmap, IMX2_WDT_WICR,  in imx2_wdt_set_pretimeout()
212 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_isr()  local
214 	regmap_write_bits(wdev->regmap, IMX2_WDT_WICR,  in imx2_wdt_isr()
224 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_start()  local
226 	if (imx2_wdt_is_running(wdev))  in imx2_wdt_start()
260 	struct imx2_wdt_device *wdev;  in imx2_wdt_probe()  local
266 	wdev = devm_kzalloc(dev, sizeof(*wdev), GFP_KERNEL);  in imx2_wdt_probe()
267 	if (!wdev)  in imx2_wdt_probe()
274 	wdev->regmap = devm_regmap_init_mmio_clk(dev, NULL, base,  in imx2_wdt_probe()
276 	if (IS_ERR(wdev->regmap)) {  in imx2_wdt_probe()
278 		return PTR_ERR(wdev->regmap);  in imx2_wdt_probe()
281 	wdev->clk = devm_clk_get(dev, NULL);  in imx2_wdt_probe()
282 	if (IS_ERR(wdev->clk)) {  in imx2_wdt_probe()
284 		return PTR_ERR(wdev->clk);  in imx2_wdt_probe()
287 	wdog			= &wdev->wdog;  in imx2_wdt_probe()
301 	ret = clk_prepare_enable(wdev->clk);  in imx2_wdt_probe()
305 	ret = devm_add_action_or_reset(dev, imx2_wdt_action, wdev->clk);  in imx2_wdt_probe()
309 	wdev->clk_is_on = true;  in imx2_wdt_probe()
311 	regmap_read(wdev->regmap, IMX2_WDT_WRSR, &val);  in imx2_wdt_probe()
314 	wdev->ext_reset = of_property_read_bool(dev->of_node,  in imx2_wdt_probe()
320 	wdev->no_ping = !of_device_is_compatible(dev->of_node, "fsl,imx7d-wdt");  in imx2_wdt_probe()
322 	watchdog_set_drvdata(wdog, wdev);  in imx2_wdt_probe()
326 	if (wdev->no_ping)  in imx2_wdt_probe()
329 	if (imx2_wdt_is_running(wdev)) {  in imx2_wdt_probe()
339 	regmap_write(wdev->regmap, IMX2_WDT_WMCR, 0);  in imx2_wdt_probe()
347 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_shutdown()  local
349 	if (imx2_wdt_is_running(wdev)) {  in imx2_wdt_shutdown()
364 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_suspend()  local
367 	if (imx2_wdt_is_running(wdev)) {  in imx2_wdt_suspend()
376 	if (wdev->no_ping) {  in imx2_wdt_suspend()
377 		clk_disable_unprepare(wdev->clk);  in imx2_wdt_suspend()
379 		wdev->clk_is_on = false;  in imx2_wdt_suspend()
389 	struct imx2_wdt_device *wdev = watchdog_get_drvdata(wdog);  in imx2_wdt_resume()  local
392 	if (wdev->no_ping) {  in imx2_wdt_resume()
393 		ret = clk_prepare_enable(wdev->clk);  in imx2_wdt_resume()
398 		wdev->clk_is_on = true;  in imx2_wdt_resume()
401 	if (watchdog_active(wdog) && !imx2_wdt_is_running(wdev)) {  in imx2_wdt_resume()
409 	if (imx2_wdt_is_running(wdev)) {  in imx2_wdt_resume()