[PATCH 0/4] clk: mvebu: fix clk init order
Mike Turquette
mturquette at linaro.org
Wed Feb 5 09:08:02 EST 2014
Quoting Sebastian Hesselbarth (2014-01-25 10:19:06)
> This patch set fixes clk init order that went upside-down with
> v3.14. I haven't really investigated what caused this, but I assume
> it is related with DT node reordering by addresses.
>
> Anyway, with v3.14 for MVEBU SoCs, the clock gating driver gets
> registered before core clocks driver. Unfortunately, we cannot
> return -EPROBE_DEFER in drivers initialized by clk_of_init. As the
> init order for our drivers is always core clocks before clock gating,
> we maintain init order ourselves by hooking CLK_OF_DECLARE to one
> init function that will register core clocks before clock gating
> driver.
>
> This patch is based on pre-v3.14-rc1 mainline and should go in as
> fixes for it. As we now send MVEBU clk pull-requests to Mike directly,
> I suggest Jason picks it up as a topic branch.
Sebastian,
These patches look OK to me. I'd rather take Gregory Clement's "respect
the clock dependencies in of_clk_init" patch towards 3.15, so this fix
will still be necessary for the current -rc's.
Jason, will you be sending a PR?
Thanks,
Mike
>
> The patches have been boot tested on Dove and compile-tested only
> for Kirkwood, Armada 370 and XP.
>
> Sebastian Hesselbarth (4):
> clk: mvebu: armada-370: maintain clock init order
> clk: mvebu: armada-xp: maintain clock init order
> clk: mvebu: dove: maintain clock init order
> clk: mvebu: kirkwood: maintain clock init order
>
> drivers/clk/mvebu/armada-370.c | 21 ++++++++++-----------
> drivers/clk/mvebu/armada-xp.c | 20 +++++++++-----------
> drivers/clk/mvebu/dove.c | 19 +++++++++----------
> drivers/clk/mvebu/kirkwood.c | 34 ++++++++++++++++------------------
> 4 files changed, 44 insertions(+), 50 deletions(-)
>
> ---
> Cc: Mike Turquette <mturquette at linaro.org>
> Cc: Jason Cooper <jason at lakedaemon.net>
> Cc: Andrew Lunn <andrew at lunn.ch>
> Cc: Gregory Clement <gregory.clement at free-electrons.com>
> Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> Cc: Ezequiel Garcia <ezequiel.garcia at free-electrons.com>
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-kernel at vger.kernel.org
> --
> 1.8.5.2
>
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