Commit 9b386574 authored Nov 24, 2016 by Tero Kristo Committed by Guenter Roeck Dec 16, 2016

watchdog: davinci: add support for deferred probing



devm_clk_get can fail with EPROBE_DEFER in case the clock provider is
not ready yet. Handle this case gracefully, rather than dumping out
a huge warning.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

parent 807f0b2d

drivers/watchdog/davinci_wdt.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -166,8 +166,12 @@ static int davinci_wdt_probe(struct platform_device *pdev)
		return -ENOMEM;

		davinci_wdt->clk = devm_clk_get(dev, NULL);
		if (WARN_ON(IS_ERR(davinci_wdt->clk)))

		if (IS_ERR(davinci_wdt->clk)) {
		if (PTR_ERR(davinci_wdt->clk) != -EPROBE_DEFER)
		dev_err(&pdev->dev, "failed to get clock node\n");
		return PTR_ERR(davinci_wdt->clk);
		}

		clk_prepare_enable(davinci_wdt->clk);