static int __devinit pnx4008_wdt_probe(struct platform_device *pdev)
{
struct resource *r;
int ret = 0;
if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
heartbeat = DEFAULT_HEARTBEAT;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
wdt_base = devm_request_and_ioremap(&pdev->dev, r);
if (!wdt_base)
return -EADDRINUSE;
wdt_clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(wdt_clk))
return PTR_ERR(wdt_clk);
ret = clk_enable(wdt_clk);
if (ret)
goto out;
pnx4008_wdd.timeout = heartbeat;
pnx4008_wdd.bootstatus = (readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ?
WDIOF_CARDRESET : 0;
watchdog_set_nowayout(&pnx4008_wdd, nowayout);
pnx4008_wdt_stop(&pnx4008_wdd); /* disable for now */
ret = watchdog_register_device(&pnx4008_wdd);
if (ret < 0) {
dev_err(&pdev->dev, "cannot register watchdog device\n");
goto disable_clk;
}
dev_info(&pdev->dev, "PNX4008 Watchdog Timer: heartbeat %d sec\n",
heartbeat);
return 0;
disable_clk:
clk_disable(wdt_clk);
out:
clk_put(wdt_clk);
return ret;
}
static int pnx4008_wdt_probe(struct platform_device *pdev)
{
struct resource *r;
int ret = 0;
watchdog_init_timeout(&pnx4008_wdd, heartbeat, &pdev->dev);
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
wdt_base = devm_ioremap_resource(&pdev->dev, r);
if (IS_ERR(wdt_base))
return PTR_ERR(wdt_base);
wdt_clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(wdt_clk))
return PTR_ERR(wdt_clk);
ret = clk_prepare_enable(wdt_clk);
if (ret)
return ret;
pnx4008_wdd.bootstatus = (readl(WDTIM_RES(wdt_base)) & WDOG_RESET) ?
WDIOF_CARDRESET : 0;
pnx4008_wdd.parent = &pdev->dev;
watchdog_set_nowayout(&pnx4008_wdd, nowayout);
watchdog_set_restart_priority(&pnx4008_wdd, 128);
pnx4008_wdt_stop(&pnx4008_wdd); /* disable for now */
ret = watchdog_register_device(&pnx4008_wdd);
if (ret < 0) {
dev_err(&pdev->dev, "cannot register watchdog device\n");
goto disable_clk;
}
dev_info(&pdev->dev, "heartbeat %d sec\n", pnx4008_wdd.timeout);
return 0;
disable_clk:
clk_disable_unprepare(wdt_clk);
return ret;
}
