Hello Russell, On Mon, Feb 15, 2016 at 10:04:15AM +0000, Russell King - ARM Linux wrote: > On Mon, Feb 15, 2016 at 10:14:06AM +0100, Uwe Kleine-König wrote: > > On Mon, Feb 15, 2016 at 08:58:18AM +0000, Russell King - ARM Linux wrote: > > > On Mon, Feb 15, 2016 at 09:17:50AM +0100, Uwe Kleine-König wrote: > > > > On Sun, Feb 14, 2016 at 08:07:55PM +0000, Russell King - ARM Linux wrote: > > > > > On Sun, Feb 14, 2016 at 08:55:01PM +0100, Uwe Kleine-König wrote: > > > > > > So the unexpected abnormality here is that even though this device is > > > > > > instantiated by dt, the driver doesn't provide any compatibles. > > > > > > Either my expectation is wrong, then 67d02a1bbb33455 should be reverted > > > > > > > > > > Your expectation is wrong. AMBA primecell devices have hardware IDs > > > > > and are matched to their drivers by those IDs. Just like PCI. > > > > > > > > pci devices don't appear in dt, do they? I don't see the connection > > > > between amba devices and platform devices, see my other mail in this > > > > thread for some more details. > > > > > > They both have hardware IDs, and they are both matched via those hardware > > > IDs. > > > > I changed platform_match which is about matching by dt compatible, acpi > > and/or device name. I don't see how this can affect an amba device given > > they match to a driver by a hardware id. > > > > > Your change has introduced a regression and is therefore wrong. > > > > I'd like to understand though why and how my commit is wrong to be able > > to fix it instead of getting it reverted. > > I don't have the commit, and I haven't seen the patch so I can't > comment further, sorry. It's in -next. For a quick look: https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=67d02a1bbb33455 Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html