[PATCH 4/4] arm: dts: omap3-gta04: Add static configuration for devconf1 register
Tomi Valkeinen
tomi.valkeinen at ti.com
Thu Nov 13 03:31:43 PST 2014
On 12/11/14 17:02, Tony Lindgren wrote:
>> And, with a quick grep, I see CONTROL_DEVCONF1 touched in multiple
>> places in the kernel. I wonder if adding a pinmux entry for it could
>> cause some rather odd problems.
>
> They can all use pinctrl-single no problem.
Can, but don't. That's my worry. If we touch the DEVCONF1 via pinmux,
and we have code in mach-omap2 that also touch DEVCONF1, without any
knowledge (and locking) between those...
So _maybe_ that's not an issue, as the pinmux config we have here is
fixed, and done once at boot time, and maybe the code in mach-omap2 that
touch DEVCONF1 is also ran just once and not at the same time as the
pinmux. But I don't know if that's so.
Tomi
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