On Thu, May 04, 2017 at 09:49:59PM +0800, Icenowy Zheng wrote:

 static const struct of_device_id sun4i_a10_pinctrl_match[] = {
-	{ .compatible = "allwinner,sun4i-a10-pinctrl", },
+	{
+		.compatible = "allwinner,sun4i-a10-pinctrl",
+		.data = (void *)PINCTRL_SUN4I_A10
+	},
+	{
+		.compatible = "allwinner,sun7i-a20-pinctrl",
+		.data = (void *)PINCTRL_SUN7I_A20
+	},
 	{}
 };

This means you're going to have two drivers probing for the same
device: this driver, and the old one. This is not ok, and probably
introduces some corner cases.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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