From mboxrd@z Thu Jan 1 00:00:00 1970 From: maxime.ripard@free-electrons.com (Maxime Ripard) Date: Thu, 4 May 2017 16:41:52 +0200 Subject: [PATCH v2 03/10] pinctrl: sunxi: add A20 support to A10 driver In-Reply-To: <83062089-19CD-4805-A6DC-2C25D75621FF@aosc.io> References: <20170504135006.16483-1-icenowy@aosc.io> <20170504135006.16483-4-icenowy@aosc.io> <20170504140220.26kguf3trz7ocylv@lukather> <83062089-19CD-4805-A6DC-2C25D75621FF@aosc.io> Message-ID: <20170504144152.34yzk424aqrizmbu@lukather> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, May 04, 2017 at 10:03:26PM +0800, Icenowy Zheng wrote: > > > ? 2017?5?4? GMT+08:00 ??10:02:20, Maxime Ripard ??: > >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. > > The A20 driver is dropped in the next commit. Yes, and that is an issue for bisectability. Anyone that will checkout between those two commits will have a broken kernel, and that is not ok. Any commit should be in a working state. Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 801 bytes Desc: not available URL: