[PATCH 0/6] arm64/ARM: dts: renesas: Don't disable referenced optional clocks

[Simon Horman]

On Mon, Apr 25, 2016 at 04:08:29PM +0200, Geert Uytterhoeven wrote:
> 	Hi Simon, Magnus,
> 
> clk_get() on a disabled clock node will return -EPROBE_DEFER, which can
> cause drivers to be deferred forever if such clocks are referenced in
> their devices' clocks properties. Disabled clock nodes show this
> behavior as of commit 3e5dd6f6e690048d ("clk: Ignore disabled DT clock
> providers"), which is in v4.6-rc1.
> 
> Commit ac6908b3049397b1 ("ARM: dts: r8a7791: Don't disable referenced
> optional clocks") fixed this for the Porter development board, which
> doesn't have the SCIF_CLK crystal populated.  This patch series fixes
> the same problem for the remaining Renesas DTSes, by updating disabled
> external clock nodes to default to a frequency of 0, but not disabling
> them.
> 
> None of these should show up with in-tree supported boards, but Jürg
> Billeter <j at bitron.ch> reported seeing the problem with v4.6-rc5 on a
> custom R-Car H3 board. Hence you may want to queue at least the arm64
> fix for v4.6.
> 
> Thanks!

Thanks.

I have tentatively done the following:

* Queued up the portion of the arm64 patch that is relevant to v4.6
  (i.e. changes DT nodes that exist in v4.6) as a fix for v4.6.
* Queued up the rest for v4.7

Please check that what is in renesas-next-20160426-v4.6-rc1 looks sensible.