On Friday 28 November 2014 22:02:01 Stefan Agner wrote:

On 2014-11-28 17:49, Arnd Bergmann wrote:

quoted

On Friday 28 November 2014 17:43:35 Stefan Agner wrote:

quoted

Support Vybrid SoC's system reset controller (SRC). Currently we
don't register a reset controller but only support the imx_cpu_jump
and imx_cpu_arg functions.

Signed-off-by: Stefan Agner <stefan@agner.ch>

I think this should be a platform driver in drivers/power/reset.

Yeah, I thought that too, see my cover letter. The problem is, in that
module are also some register which are of interest when implementing
suspend/resume support (see cover letter too). However, we could also
just make a dt entry for that reset register only, and create another dt
entry for the other registers.

Don't make a node with just one register, in this case, a syscon device
would be best.

quoted

If the SRC is also capable of resetting individual blocks instead of just
the entire machine, it would be a reset driver in drivers/reset instead.

Beside the system reset, there is only a mask functionality for the
watchdogs (there are two watchdogs, one for Cortex-A5 and one for the
M4). This makes the SRC module in the Vybrid a bit different then what
is available on other i.MX SoC's...

If you already have the watchdog registers in there and want to have
a watchdog driver too, the easiest way would be to register the reboot
handler from the watchdog driver.

	Arnd