Re: [PATCH 14/14] ARM: ux500: Move rtc-pl031 registration to DeviceTree when enabled
From: Lee Jones
Date: Tue Jun 12 2012 - 10:44:50 EST
On 12/06/12 15:32, Linus Walleij wrote:
On Tue, Jun 12, 2012 at 10:03 AM, Lee Jones<lee.jones@xxxxxxxxxx> wrote:
On 11/06/12 22:43, Linus Walleij wrote:
Oh this is a bug fix really, well it's in the device tree so nevermind.
It is? How so?
That the device tree was declaring a compatible node for something
that never existed (stericsson,db8500-rtc) while the real node is
"arm,rtc-pl031", "arm,primecell".
Without this fix 3.4 will not have an PL031 RTC I guess?
Think of the old entry as a dummy one, a stub if you will. Quite a few
of the entries were initially loaded into the Device Tree as a best
effort first attempt and had to be changed at a later date. This is no
different. I see this as an enablement patch rather than a bug-fix. In
fact, there would have been a bug if this worked when it was initially
written, as the driver would have probed twice on a DT boot. Once by DT
and once by platform code.
--
Lee Jones
Linaro ST-Ericsson Landing Team Lead
M: +44 77 88 633 515
Linaro.org â Open source software for ARM SoCs
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