Re: [PATCH v2 03/10] pinctrl: sunxi: add A20 support to A10 driver

From: Maxime Ripard
Date: Thu May 04 2017 - 10:04:00 EST


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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